diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/.gitignore b/Godeps/_workspace/src/github.com/lebauce/swift/.gitignore new file mode 100644 index 00000000..5cdbab79 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/.gitignore @@ -0,0 +1,4 @@ +*~ +*.pyc +test-env* +junk/ \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/.travis.yml b/Godeps/_workspace/src/github.com/lebauce/swift/.travis.yml new file mode 100644 index 00000000..391b1d19 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/.travis.yml @@ -0,0 +1,10 @@ +language: go + +go: + - 1.1.2 + - 1.2.2 + - 1.3 + - tip + +script: + - go test diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/COPYING b/Godeps/_workspace/src/github.com/lebauce/swift/COPYING new file mode 100644 index 00000000..8c27c67f --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/COPYING @@ -0,0 +1,20 @@ +Copyright (C) 2012 by Nick Craig-Wood http://www.craig-wood.com/nick/ + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. + diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/README.md b/Godeps/_workspace/src/github.com/lebauce/swift/README.md new file mode 100644 index 00000000..3643c8b5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/README.md @@ -0,0 +1,106 @@ +Swift +===== + +This package provides an easy to use library for interfacing with +Swift / Openstack Object Storage / Rackspace cloud files from the Go +Language + +See here for package docs + + http://godoc.org/github.com/ncw/swift + +[![Build Status](https://travis-ci.org/ncw/swift.png)](https://travis-ci.org/ncw/swift) + +Install +------- + +Use go to install the library + + go get github.com/ncw/swift + +Usage +----- + +See here for full package docs + +- http://godoc.org/github.com/ncw/swift + +Here is a short example from the docs + + import "github.com/ncw/swift" + + // Create a connection + c := swift.Connection{ + UserName: "user", + ApiKey: "key", + AuthUrl: "auth_url", + } + // Authenticate + err := c.Authenticate() + if err != nil { + panic(err) + } + // List all the containers + containers, err := c.ContainerNames(nil) + fmt.Println(containers) + // etc... + +Additions +--------- + +The `rs` sub project contains a wrapper for the Rackspace specific CDN Management interface. + +Testing +------- + +To run the tests you can either use an embedded fake Swift server +either use a real Openstack Swift server or a Rackspace Cloud files account. + +When using a real Swift server, you need to set these environment variables +before running the tests + + export SWIFT_API_USER='user' + export SWIFT_API_KEY='key' + export SWIFT_AUTH_URL='https://url.of.auth.server/v1.0' + +And optionally these if using v2 authentication + + export SWIFT_TENANT='TenantName' + export SWIFT_TENANT_ID='TenantId' + +Then run the tests with `go test` + +License +------- + +This is free software under the terms of MIT license (check COPYING file +included in this package). + +Contact and support +------------------- + +The project website is at: + +- https://github.com/ncw/swift + +There you can file bug reports, ask for help or contribute patches. + +Authors +------- + +- Nick Craig-Wood + +Contributors +------------ + +- Brian "bojo" Jones +- Janika Liiv +- Yamamoto, Hirotaka +- Stephen +- platformpurple +- Paul Querna +- Livio Soares +- thesyncim +- lsowen +- Sylvain Baubeau +- Chris Kastorff diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/auth.go b/Godeps/_workspace/src/github.com/lebauce/swift/auth.go new file mode 100644 index 00000000..8d2f54ea --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/auth.go @@ -0,0 +1,279 @@ +package swift + +import ( + "bytes" + "encoding/json" + "net/http" + "net/url" + "strings" +) + +// Auth defines the operations needed to authenticate with swift +// +// This encapsulates the different authentication schemes in use +type Authenticator interface { + Request(*Connection) (*http.Request, error) + Response(resp *http.Response) error + // The public storage URL - set Internal to true to read + // internal/service net URL + StorageUrl(Internal bool) string + // The access token + Token() string + // The CDN url if available + CdnUrl() string +} + +// newAuth - create a new Authenticator from the AuthUrl +// +// A hint for AuthVersion can be provided +func newAuth(c *Connection) (Authenticator, error) { + AuthVersion := c.AuthVersion + if AuthVersion == 0 { + if strings.Contains(c.AuthUrl, "v2") { + AuthVersion = 2 + } else if strings.Contains(c.AuthUrl, "v1") { + AuthVersion = 1 + } else { + return nil, newErrorf(500, "Can't find AuthVersion in AuthUrl - set explicitly") + } + } + switch AuthVersion { + case 1: + return &v1Auth{}, nil + case 2: + return &v2Auth{ + // Guess as to whether using API key or + // password it will try both eventually so + // this is just an optimization. + useApiKey: len(c.ApiKey) >= 32, + }, nil + } + return nil, newErrorf(500, "Auth Version %d not supported", AuthVersion) +} + +// ------------------------------------------------------------ + +// v1 auth +type v1Auth struct { + Headers http.Header // V1 auth: the authentication headers so extensions can access them +} + +// v1 Authentication - make request +func (auth *v1Auth) Request(c *Connection) (*http.Request, error) { + req, err := http.NewRequest("GET", c.AuthUrl, nil) + if err != nil { + return nil, err + } + req.Header.Set("User-Agent", c.UserAgent) + req.Header.Set("X-Auth-Key", c.ApiKey) + req.Header.Set("X-Auth-User", c.UserName) + return req, nil +} + +// v1 Authentication - read response +func (auth *v1Auth) Response(resp *http.Response) error { + auth.Headers = resp.Header + return nil +} + +// v1 Authentication - read storage url +func (auth *v1Auth) StorageUrl(Internal bool) string { + storageUrl := auth.Headers.Get("X-Storage-Url") + if Internal { + newUrl, err := url.Parse(storageUrl) + if err != nil { + return storageUrl + } + newUrl.Host = "snet-" + newUrl.Host + storageUrl = newUrl.String() + } + return storageUrl +} + +// v1 Authentication - read auth token +func (auth *v1Auth) Token() string { + return auth.Headers.Get("X-Auth-Token") +} + +// v1 Authentication - read cdn url +func (auth *v1Auth) CdnUrl() string { + return auth.Headers.Get("X-CDN-Management-Url") +} + +// ------------------------------------------------------------ + +// v2 Authentication +type v2Auth struct { + Auth *v2AuthResponse + Region string + useApiKey bool // if set will use API key not Password + useApiKeyOk bool // if set won't change useApiKey any more + notFirst bool // set after first run +} + +// v2 Authentication - make request +func (auth *v2Auth) Request(c *Connection) (*http.Request, error) { + auth.Region = c.Region + // Toggle useApiKey if not first run and not OK yet + if auth.notFirst && !auth.useApiKeyOk { + auth.useApiKey = !auth.useApiKey + } + auth.notFirst = true + // Create a V2 auth request for the body of the connection + var v2i interface{} + if !auth.useApiKey { + // Normal swift authentication + v2 := v2AuthRequest{} + v2.Auth.PasswordCredentials.UserName = c.UserName + v2.Auth.PasswordCredentials.Password = c.ApiKey + v2.Auth.Tenant = c.Tenant + v2.Auth.TenantId = c.TenantId + v2i = v2 + } else { + // Rackspace special with API Key + v2 := v2AuthRequestRackspace{} + v2.Auth.ApiKeyCredentials.UserName = c.UserName + v2.Auth.ApiKeyCredentials.ApiKey = c.ApiKey + v2.Auth.Tenant = c.Tenant + v2.Auth.TenantId = c.TenantId + v2i = v2 + } + body, err := json.Marshal(v2i) + if err != nil { + return nil, err + } + url := c.AuthUrl + if !strings.HasSuffix(url, "/") { + url += "/" + } + url += "tokens" + req, err := http.NewRequest("POST", url, bytes.NewBuffer(body)) + if err != nil { + return nil, err + } + req.Header.Set("Content-Type", "application/json") + return req, nil +} + +// v2 Authentication - read response +func (auth *v2Auth) Response(resp *http.Response) error { + auth.Auth = new(v2AuthResponse) + err := readJson(resp, auth.Auth) + // If successfully read Auth then no need to toggle useApiKey any more + if err == nil { + auth.useApiKeyOk = true + } + return err +} + +// Finds the Endpoint Url of "type" from the v2AuthResponse using the +// Region if set or defaulting to the first one if not +// +// Returns "" if not found +func (auth *v2Auth) endpointUrl(Type string, Internal bool) string { + for _, catalog := range auth.Auth.Access.ServiceCatalog { + if catalog.Type == Type { + for _, endpoint := range catalog.Endpoints { + if auth.Region == "" || (auth.Region == endpoint.Region) { + if Internal { + return endpoint.InternalUrl + } else { + return endpoint.PublicUrl + } + } + } + } + } + return "" +} + +// v2 Authentication - read storage url +// +// If Internal is true then it reads the private (internal / service +// net) URL. +func (auth *v2Auth) StorageUrl(Internal bool) string { + return auth.endpointUrl("object-store", Internal) +} + +// v2 Authentication - read auth token +func (auth *v2Auth) Token() string { + return auth.Auth.Access.Token.Id +} + +// v2 Authentication - read cdn url +func (auth *v2Auth) CdnUrl() string { + return auth.endpointUrl("rax:object-cdn", false) +} + +// ------------------------------------------------------------ + +// V2 Authentication request +// +// http://docs.openstack.org/developer/keystone/api_curl_examples.html +// http://docs.rackspace.com/servers/api/v2/cs-gettingstarted/content/curl_auth.html +// http://docs.openstack.org/api/openstack-identity-service/2.0/content/POST_authenticate_v2.0_tokens_.html +type v2AuthRequest struct { + Auth struct { + PasswordCredentials struct { + UserName string `json:"username"` + Password string `json:"password"` + } `json:"passwordCredentials"` + Tenant string `json:"tenantName,omitempty"` + TenantId string `json:"tenantId,omitempty"` + } `json:"auth"` +} + +// V2 Authentication request - Rackspace variant +// +// http://docs.openstack.org/developer/keystone/api_curl_examples.html +// http://docs.rackspace.com/servers/api/v2/cs-gettingstarted/content/curl_auth.html +// http://docs.openstack.org/api/openstack-identity-service/2.0/content/POST_authenticate_v2.0_tokens_.html +type v2AuthRequestRackspace struct { + Auth struct { + ApiKeyCredentials struct { + UserName string `json:"username"` + ApiKey string `json:"apiKey"` + } `json:"RAX-KSKEY:apiKeyCredentials"` + Tenant string `json:"tenantName,omitempty"` + TenantId string `json:"tenantId,omitempty"` + } `json:"auth"` +} + +// V2 Authentication reply +// +// http://docs.openstack.org/developer/keystone/api_curl_examples.html +// http://docs.rackspace.com/servers/api/v2/cs-gettingstarted/content/curl_auth.html +// http://docs.openstack.org/api/openstack-identity-service/2.0/content/POST_authenticate_v2.0_tokens_.html +type v2AuthResponse struct { + Access struct { + ServiceCatalog []struct { + Endpoints []struct { + InternalUrl string + PublicUrl string + Region string + TenantId string + } + Name string + Type string + } + Token struct { + Expires string + Id string + Tenant struct { + Id string + Name string + } + } + User struct { + DefaultRegion string `json:"RAX-AUTH:defaultRegion"` + Id string + Name string + Roles []struct { + Description string + Id string + Name string + TenantId string + } + } + } +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/compatibility_1_0.go b/Godeps/_workspace/src/github.com/lebauce/swift/compatibility_1_0.go new file mode 100644 index 00000000..7b69a757 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/compatibility_1_0.go @@ -0,0 +1,28 @@ +// Go 1.0 compatibility functions + +// +build !go1.1 + +package swift + +import ( + "log" + "net/http" + "time" +) + +// Cancel the request - doesn't work under < go 1.1 +func cancelRequest(transport http.RoundTripper, req *http.Request) { + log.Printf("Tried to cancel a request but couldn't - recompile with go 1.1") +} + +// Reset a timer - Doesn't work properly < go 1.1 +// +// This is quite hard to do properly under go < 1.1 so we do a crude +// approximation and hope that everyone upgrades to go 1.1 quickly +func resetTimer(t *time.Timer, d time.Duration) { + t.Stop() + // Very likely this doesn't actually work if we are already + // selecting on t.C. However we've stopped the original timer + // so won't break transfers but may not time them out :-( + *t = *time.NewTimer(d) +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/compatibility_1_1.go b/Godeps/_workspace/src/github.com/lebauce/swift/compatibility_1_1.go new file mode 100644 index 00000000..a4f9c3ab --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/compatibility_1_1.go @@ -0,0 +1,24 @@ +// Go 1.1 and later compatibility functions +// +// +build go1.1 + +package swift + +import ( + "net/http" + "time" +) + +// Cancel the request +func cancelRequest(transport http.RoundTripper, req *http.Request) { + if tr, ok := transport.(interface { + CancelRequest(*http.Request) + }); ok { + tr.CancelRequest(req) + } +} + +// Reset a timer +func resetTimer(t *time.Timer, d time.Duration) { + t.Reset(d) +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/doc.go b/Godeps/_workspace/src/github.com/lebauce/swift/doc.go new file mode 100644 index 00000000..44efde7b --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/doc.go @@ -0,0 +1,19 @@ +/* +Package swift provides an easy to use interface to Swift / Openstack Object Storage / Rackspace Cloud Files + +Standard Usage + +Most of the work is done through the Container*() and Object*() methods. + +All methods are safe to use concurrently in multiple go routines. + +Object Versioning + +As defined by http://docs.openstack.org/api/openstack-object-storage/1.0/content/Object_Versioning-e1e3230.html#d6e983 one can create a container which allows for version control of files. The suggested method is to create a version container for holding all non-current files, and a current container for holding the latest version that the file points to. The container and objects inside it can be used in the standard manner, however, pushing a file multiple times will result in it being copied to the version container and the new file put in it's place. If the current file is deleted, the previous file in the version container will replace it. This means that if a file is updated 5 times, it must be deleted 5 times to be completely removed from the system. + +Rackspace Sub Module + +This module specifically allows the enabling/disabling of Rackspace Cloud File CDN management on a container. This is specific to the Rackspace API and not Swift/Openstack, therefore it has been placed in a submodule. One can easily create a RsConnection and use it like the standard Connection to access and manipulate containers and objects. + +*/ +package swift diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/example_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/example_test.go new file mode 100644 index 00000000..30cb9834 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/example_test.go @@ -0,0 +1,97 @@ +// Copyright... + +// This example demonstrates opening a Connection and doing some basic operations. +package swift_test + +import ( + "fmt" + + "github.com/ncw/swift" +) + +func ExampleConnection() { + // Create a v1 auth connection + c := swift.Connection{ + // This should be your username + UserName: "user", + // This should be your api key + ApiKey: "key", + // This should be a v1 auth url, eg + // Rackspace US https://auth.api.rackspacecloud.com/v1.0 + // Rackspace UK https://lon.auth.api.rackspacecloud.com/v1.0 + // Memset Memstore UK https://auth.storage.memset.com/v1.0 + AuthUrl: "auth_url", + } + + // Authenticate + err := c.Authenticate() + if err != nil { + panic(err) + } + // List all the containers + containers, err := c.ContainerNames(nil) + fmt.Println(containers) + // etc... + + // ------ or alternatively create a v2 connection ------ + + // Create a v2 auth connection + c = swift.Connection{ + // This is the sub user for the storage - eg "admin" + UserName: "user", + // This should be your api key + ApiKey: "key", + // This should be a version2 auth url, eg + // Rackspace v2 https://identity.api.rackspacecloud.com/v2.0 + // Memset Memstore v2 https://auth.storage.memset.com/v2.0 + AuthUrl: "v2_auth_url", + // Region to use - default is use first region if unset + Region: "LON", + // Name of the tenant - this is likely your username + Tenant: "jim", + } + + // as above... +} + +var container string + +func ExampleConnection_ObjectsWalk() { + objects := make([]string, 0) + err := c.ObjectsWalk(container, nil, func(opts *swift.ObjectsOpts) (interface{}, error) { + newObjects, err := c.ObjectNames(container, opts) + if err == nil { + objects = append(objects, newObjects...) + } + return newObjects, err + }) + fmt.Println("Found all the objects", objects, err) +} + +func ExampleConnection_VersionContainerCreate() { + // Use the helper method to create the current and versions container. + if err := c.VersionContainerCreate("cds", "cd-versions"); err != nil { + fmt.Print(err.Error()) + } +} + +func ExampleConnection_VersionEnable() { + // Build the containers manually and enable them. + if err := c.ContainerCreate("movie-versions", nil); err != nil { + fmt.Print(err.Error()) + } + if err := c.ContainerCreate("movies", nil); err != nil { + fmt.Print(err.Error()) + } + if err := c.VersionEnable("movies", "movie-versions"); err != nil { + fmt.Print(err.Error()) + } + + // Access the primary container as usual with ObjectCreate(), ObjectPut(), etc. + // etc... +} + +func ExampleConnection_VersionDisable() { + // Disable versioning on a container. Note that this does not delete the versioning container. + c.VersionDisable("movies") +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/meta.go b/Godeps/_workspace/src/github.com/lebauce/swift/meta.go new file mode 100644 index 00000000..e52d6860 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/meta.go @@ -0,0 +1,174 @@ +// Metadata manipulation in and out of Headers + +package swift + +import ( + "fmt" + "net/http" + "strconv" + "strings" + "time" +) + +// Metadata stores account, container or object metadata. +type Metadata map[string]string + +// Metadata gets the Metadata starting with the metaPrefix out of the Headers. +// +// The keys in the Metadata will be converted to lower case +func (h Headers) Metadata(metaPrefix string) Metadata { + m := Metadata{} + metaPrefix = http.CanonicalHeaderKey(metaPrefix) + for key, value := range h { + if strings.HasPrefix(key, metaPrefix) { + metaKey := strings.ToLower(key[len(metaPrefix):]) + m[metaKey] = value + } + } + return m +} + +// AccountMetadata converts Headers from account to a Metadata. +// +// The keys in the Metadata will be converted to lower case. +func (h Headers) AccountMetadata() Metadata { + return h.Metadata("X-Account-Meta-") +} + +// ContainerMetadata converts Headers from container to a Metadata. +// +// The keys in the Metadata will be converted to lower case. +func (h Headers) ContainerMetadata() Metadata { + return h.Metadata("X-Container-Meta-") +} + +// ObjectMetadata converts Headers from object to a Metadata. +// +// The keys in the Metadata will be converted to lower case. +func (h Headers) ObjectMetadata() Metadata { + return h.Metadata("X-Object-Meta-") +} + +// Headers convert the Metadata starting with the metaPrefix into a +// Headers. +// +// The keys in the Metadata will be converted from lower case to http +// Canonical (see http.CanonicalHeaderKey). +func (m Metadata) Headers(metaPrefix string) Headers { + h := Headers{} + for key, value := range m { + key = http.CanonicalHeaderKey(metaPrefix + key) + h[key] = value + } + return h +} + +// AccountHeaders converts the Metadata for the account. +func (m Metadata) AccountHeaders() Headers { + return m.Headers("X-Account-Meta-") +} + +// ContainerHeaders converts the Metadata for the container. +func (m Metadata) ContainerHeaders() Headers { + return m.Headers("X-Container-Meta-") +} + +// ObjectHeaders converts the Metadata for the object. +func (m Metadata) ObjectHeaders() Headers { + return m.Headers("X-Object-Meta-") +} + +// Turns a number of ns into a floating point string in seconds +// +// Trims trailing zeros and guaranteed to be perfectly accurate +func nsToFloatString(ns int64) string { + if ns < 0 { + return "-" + nsToFloatString(-ns) + } + result := fmt.Sprintf("%010d", ns) + split := len(result) - 9 + result, decimals := result[:split], result[split:] + decimals = strings.TrimRight(decimals, "0") + if decimals != "" { + result += "." + result += decimals + } + return result +} + +// Turns a floating point string in seconds into a ns integer +// +// Guaranteed to be perfectly accurate +func floatStringToNs(s string) (int64, error) { + const zeros = "000000000" + if point := strings.IndexRune(s, '.'); point >= 0 { + tail := s[point+1:] + if fill := 9 - len(tail); fill < 0 { + tail = tail[:9] + } else { + tail += zeros[:fill] + } + s = s[:point] + tail + } else if len(s) > 0 { // Make sure empty string produces an error + s += zeros + } + return strconv.ParseInt(s, 10, 64) +} + +// FloatStringToTime converts a floating point number string to a time.Time +// +// The string is floating point number of seconds since the epoch +// (Unix time). The number should be in fixed point format (not +// exponential), eg "1354040105.123456789" which represents the time +// "2012-11-27T18:15:05.123456789Z" +// +// Some care is taken to preserve all the accuracy in the time.Time +// (which wouldn't happen with a naive conversion through float64) so +// a round trip conversion won't change the data. +// +// If an error is returned then time will be returned as the zero time. +func FloatStringToTime(s string) (t time.Time, err error) { + ns, err := floatStringToNs(s) + if err != nil { + return + } + t = time.Unix(0, ns) + return +} + +// TimeToFloatString converts a time.Time object to a floating point string +// +// The string is floating point number of seconds since the epoch +// (Unix time). The number is in fixed point format (not +// exponential), eg "1354040105.123456789" which represents the time +// "2012-11-27T18:15:05.123456789Z". Trailing zeros will be dropped +// from the output. +// +// Some care is taken to preserve all the accuracy in the time.Time +// (which wouldn't happen with a naive conversion through float64) so +// a round trip conversion won't change the data. +func TimeToFloatString(t time.Time) string { + return nsToFloatString(t.UnixNano()) +} + +// Read a modification time (mtime) from a Metadata object +// +// This is a defacto standard (used in the official python-swiftclient +// amongst others) for storing the modification time (as read using +// os.Stat) for an object. It is stored using the key 'mtime', which +// for example when written to an object will be 'X-Object-Meta-Mtime'. +// +// If an error is returned then time will be returned as the zero time. +func (m Metadata) GetModTime() (t time.Time, err error) { + return FloatStringToTime(m["mtime"]) +} + +// Write an modification time (mtime) to a Metadata object +// +// This is a defacto standard (used in the official python-swiftclient +// amongst others) for storing the modification time (as read using +// os.Stat) for an object. It is stored using the key 'mtime', which +// for example when written to an object will be 'X-Object-Meta-Mtime'. +func (m Metadata) SetModTime(t time.Time) { + m["mtime"] = TimeToFloatString(t) +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/meta_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/meta_test.go new file mode 100644 index 00000000..47560d57 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/meta_test.go @@ -0,0 +1,213 @@ +// Tests for swift metadata +package swift + +import ( + "testing" + "time" +) + +func TestHeadersToMetadata(t *testing.T) { +} + +func TestHeadersToAccountMetadata(t *testing.T) { +} + +func TestHeadersToContainerMetadata(t *testing.T) { +} + +func TestHeadersToObjectMetadata(t *testing.T) { +} + +func TestMetadataToHeaders(t *testing.T) { +} + +func TestMetadataToAccountHeaders(t *testing.T) { +} + +func TestMetadataToContainerHeaders(t *testing.T) { +} + +func TestMetadataToObjectHeaders(t *testing.T) { +} + +func TestNsToFloatString(t *testing.T) { + for _, d := range []struct { + ns int64 + fs string + }{ + {0, "0"}, + {1, "0.000000001"}, + {1000, "0.000001"}, + {1000000, "0.001"}, + {100000000, "0.1"}, + {1000000000, "1"}, + {10000000000, "10"}, + {12345678912, "12.345678912"}, + {12345678910, "12.34567891"}, + {12345678900, "12.3456789"}, + {12345678000, "12.345678"}, + {12345670000, "12.34567"}, + {12345600000, "12.3456"}, + {12345000000, "12.345"}, + {12340000000, "12.34"}, + {12300000000, "12.3"}, + {12000000000, "12"}, + {10000000000, "10"}, + {1347717491123123123, "1347717491.123123123"}, + } { + if nsToFloatString(d.ns) != d.fs { + t.Error("Failed", d.ns, "!=", d.fs) + } + if d.ns > 0 && nsToFloatString(-d.ns) != "-"+d.fs { + t.Error("Failed on negative", d.ns, "!=", d.fs) + } + } +} + +func TestFloatStringToNs(t *testing.T) { + for _, d := range []struct { + ns int64 + fs string + }{ + {0, "0"}, + {0, "0."}, + {0, ".0"}, + {0, "0.0"}, + {0, "0.0000000001"}, + {1, "0.000000001"}, + {1000, "0.000001"}, + {1000000, "0.001"}, + {100000000, "0.1"}, + {100000000, "0.10"}, + {100000000, "0.1000000001"}, + {1000000000, "1"}, + {1000000000, "1."}, + {1000000000, "1.0"}, + {10000000000, "10"}, + {12345678912, "12.345678912"}, + {12345678912, "12.3456789129"}, + {12345678912, "12.34567891299"}, + {12345678910, "12.34567891"}, + {12345678900, "12.3456789"}, + {12345678000, "12.345678"}, + {12345670000, "12.34567"}, + {12345600000, "12.3456"}, + {12345000000, "12.345"}, + {12340000000, "12.34"}, + {12300000000, "12.3"}, + {12000000000, "12"}, + {10000000000, "10"}, + // This is a typical value which has more bits in than a float64 + {1347717491123123123, "1347717491.123123123"}, + } { + ns, err := floatStringToNs(d.fs) + if err != nil { + t.Error("Failed conversion", err) + } + if ns != d.ns { + t.Error("Failed", d.fs, "!=", d.ns, "was", ns) + } + if d.ns > 0 { + ns, err := floatStringToNs("-" + d.fs) + if err != nil { + t.Error("Failed conversion", err) + } + if ns != -d.ns { + t.Error("Failed on negative", -d.ns, "!=", "-"+d.fs) + } + } + } + + // These are expected to produce errors + for _, fs := range []string{ + "", + " 1", + "- 1", + "- 1", + "1.-1", + "1.0.0", + "1x0", + } { + ns, err := floatStringToNs(fs) + if err == nil { + t.Error("Didn't produce expected error", fs, ns) + } + } + +} + +func TestGetModTime(t *testing.T) { + for _, d := range []struct { + ns string + t string + }{ + {"1354040105", "2012-11-27T18:15:05Z"}, + {"1354040105.", "2012-11-27T18:15:05Z"}, + {"1354040105.0", "2012-11-27T18:15:05Z"}, + {"1354040105.000000000000", "2012-11-27T18:15:05Z"}, + {"1354040105.123", "2012-11-27T18:15:05.123Z"}, + {"1354040105.123456", "2012-11-27T18:15:05.123456Z"}, + {"1354040105.123456789", "2012-11-27T18:15:05.123456789Z"}, + {"1354040105.123456789123", "2012-11-27T18:15:05.123456789Z"}, + {"0", "1970-01-01T00:00:00.000000000Z"}, + } { + expected, err := time.Parse(time.RFC3339, d.t) + if err != nil { + t.Error("Bad test", err) + } + m := Metadata{"mtime": d.ns} + actual, err := m.GetModTime() + if err != nil { + t.Error("Parse error", err) + } + if !actual.Equal(expected) { + t.Error("Expecting", expected, expected.UnixNano(), "got", actual, actual.UnixNano()) + } + } + for _, ns := range []string{ + "EMPTY", + "", + " 1", + "- 1", + "- 1", + "1.-1", + "1.0.0", + "1x0", + } { + m := Metadata{} + if ns != "EMPTY" { + m["mtime"] = ns + } + actual, err := m.GetModTime() + if err == nil { + t.Error("Expected error not produced") + } + if !actual.IsZero() { + t.Error("Expected output to be zero") + } + } +} + +func TestSetModTime(t *testing.T) { + for _, d := range []struct { + ns string + t string + }{ + {"1354040105", "2012-11-27T18:15:05Z"}, + {"1354040105", "2012-11-27T18:15:05.000000Z"}, + {"1354040105.123", "2012-11-27T18:15:05.123Z"}, + {"1354040105.123456", "2012-11-27T18:15:05.123456Z"}, + {"1354040105.123456789", "2012-11-27T18:15:05.123456789Z"}, + {"0", "1970-01-01T00:00:00.000000000Z"}, + } { + time, err := time.Parse(time.RFC3339, d.t) + if err != nil { + t.Error("Bad test", err) + } + m := Metadata{} + m.SetModTime(time) + if m["mtime"] != d.ns { + t.Error("mtime wrong", m, "should be", d.ns) + } + } +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/notes.txt b/Godeps/_workspace/src/github.com/lebauce/swift/notes.txt new file mode 100644 index 00000000..f738552c --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/notes.txt @@ -0,0 +1,55 @@ +Notes on Go Swift +================= + +Make a builder style interface like the Google Go APIs? Advantages +are that it is easy to add named methods to the service object to do +specific things. Slightly less efficient. Not sure about how to +return extra stuff though - in an object? + +Make a container struct so these could be methods on it? + +Make noResponse check for 204? + +Make storage public so it can be extended easily? + +Rename to go-swift to match user agent string? + +Reconnect on auth error - 401 when token expires isn't tested + +Make more api compatible with python cloudfiles? + +Retry operations on timeout / network errors? +- also 408 error +- GET requests only? + +Make Connection thread safe - whenever it is changed take a write lock whenever it is read from a read lock + +Add extra headers field to Connection (for via etc) + +Make errors use an error heirachy then can catch them with a type assertion + + Error(...) + ObjectCorrupted{ Error } + +Make a Debug flag in connection for logging stuff + +Object If-Match, If-None-Match, If-Modified-Since, If-Unmodified-Since etc + +Object range + +Object create, update with X-Delete-At or X-Delete-After + +Large object support +- check uploads are less than 5GB in normal mode? + +Access control CORS? + +Swift client retries and backs off for all types of errors + +Implement net error interface? + +type Error interface { + error + Timeout() bool // Is the error a timeout? + Temporary() bool // Is the error temporary? +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/rs/rs.go b/Godeps/_workspace/src/github.com/lebauce/swift/rs/rs.go new file mode 100644 index 00000000..34ee15a0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/rs/rs.go @@ -0,0 +1,83 @@ +package rs + +import ( + "errors" + "net/http" + "strconv" + + "github.com/ncw/swift" +) + +// RsConnection is a RackSpace specific wrapper to the core swift library which +// exposes the RackSpace CDN commands via the CDN Management URL interface. +type RsConnection struct { + swift.Connection + cdnUrl string +} + +// manage is similar to the swift storage method, but uses the CDN Management URL for CDN specific calls. +func (c *RsConnection) manage(p swift.RequestOpts) (resp *http.Response, headers swift.Headers, err error) { + p.OnReAuth = func() (string, error) { + if c.cdnUrl == "" { + c.cdnUrl = c.Auth.CdnUrl() + } + if c.cdnUrl == "" { + return "", errors.New("The X-CDN-Management-Url does not exist on the authenticated platform") + } + return c.cdnUrl, nil + } + if c.Authenticated() { + _, err = p.OnReAuth() + if err != nil { + return nil, nil, err + } + } + return c.Connection.Call(c.cdnUrl, p) +} + +// ContainerCDNEnable enables a container for public CDN usage. +// +// Change the default TTL of 259200 seconds (72 hours) by passing in an integer value. +// +// This method can be called again to change the TTL. +func (c *RsConnection) ContainerCDNEnable(container string, ttl int) (swift.Headers, error) { + h := swift.Headers{"X-CDN-Enabled": "true"} + if ttl > 0 { + h["X-TTL"] = strconv.Itoa(ttl) + } + + _, headers, err := c.manage(swift.RequestOpts{ + Container: container, + Operation: "PUT", + ErrorMap: swift.ContainerErrorMap, + NoResponse: true, + Headers: h, + }) + return headers, err +} + +// ContainerCDNDisable disables CDN access to a container. +func (c *RsConnection) ContainerCDNDisable(container string) error { + h := swift.Headers{"X-CDN-Enabled": "false"} + + _, _, err := c.manage(swift.RequestOpts{ + Container: container, + Operation: "PUT", + ErrorMap: swift.ContainerErrorMap, + NoResponse: true, + Headers: h, + }) + return err +} + +// ContainerCDNMeta returns the CDN metadata for a container. +func (c *RsConnection) ContainerCDNMeta(container string) (swift.Headers, error) { + _, headers, err := c.manage(swift.RequestOpts{ + Container: container, + Operation: "HEAD", + ErrorMap: swift.ContainerErrorMap, + NoResponse: true, + Headers: swift.Headers{}, + }) + return headers, err +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/rs/rs_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/rs/rs_test.go new file mode 100644 index 00000000..74205154 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/rs/rs_test.go @@ -0,0 +1,96 @@ +// See swift_test.go for requirements to run this test. +package rs_test + +import ( + "os" + "testing" + + "github.com/ncw/swift/rs" +) + +var ( + c rs.RsConnection +) + +const ( + CONTAINER = "GoSwiftUnitTest" + OBJECT = "test_object" + CONTENTS = "12345" + CONTENT_SIZE = int64(len(CONTENTS)) + CONTENT_MD5 = "827ccb0eea8a706c4c34a16891f84e7b" +) + +// Test functions are run in order - this one must be first! +func TestAuthenticate(t *testing.T) { + UserName := os.Getenv("SWIFT_API_USER") + ApiKey := os.Getenv("SWIFT_API_KEY") + AuthUrl := os.Getenv("SWIFT_AUTH_URL") + if UserName == "" || ApiKey == "" || AuthUrl == "" { + t.Fatal("SWIFT_API_USER, SWIFT_API_KEY and SWIFT_AUTH_URL not all set") + } + c = rs.RsConnection{} + c.UserName = UserName + c.ApiKey = ApiKey + c.AuthUrl = AuthUrl + err := c.Authenticate() + if err != nil { + t.Fatal("Auth failed", err) + } + if !c.Authenticated() { + t.Fatal("Not authenticated") + } +} + +// Setup +func TestContainerCreate(t *testing.T) { + err := c.ContainerCreate(CONTAINER, nil) + if err != nil { + t.Fatal(err) + } +} + +func TestCDNEnable(t *testing.T) { + headers, err := c.ContainerCDNEnable(CONTAINER, 0) + if err != nil { + t.Error(err) + } + if _, ok := headers["X-Cdn-Uri"]; !ok { + t.Error("Failed to enable CDN for container") + } +} + +func TestOnReAuth(t *testing.T) { + c2 := rs.RsConnection{} + c2.UserName = c.UserName + c2.ApiKey = c.ApiKey + c2.AuthUrl = c.AuthUrl + _, err := c2.ContainerCDNEnable(CONTAINER, 0) + if err != nil { + t.Fatalf("Failed to reauthenticate: %v", err) + } +} + +func TestCDNMeta(t *testing.T) { + headers, err := c.ContainerCDNMeta(CONTAINER) + if err != nil { + t.Error(err) + } + if _, ok := headers["X-Cdn-Uri"]; !ok { + t.Error("CDN is not enabled") + } +} + +func TestCDNDisable(t *testing.T) { + err := c.ContainerCDNDisable(CONTAINER) // files stick in CDN until TTL expires + if err != nil { + t.Error(err) + } +} + +// Teardown +func TestContainerDelete(t *testing.T) { + err := c.ContainerDelete(CONTAINER) + if err != nil { + t.Fatal(err) + } +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/swift.go b/Godeps/_workspace/src/github.com/lebauce/swift/swift.go new file mode 100644 index 00000000..e019b05e --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/swift.go @@ -0,0 +1,1848 @@ +package swift + +import ( + "bufio" + "bytes" + "crypto/md5" + "encoding/json" + "fmt" + "hash" + "io" + "log" + "mime" + "net/http" + "net/url" + "path" + "strconv" + "strings" + "sync" + "time" +) + +const ( + DefaultUserAgent = "goswift/1.0" // Default user agent + DefaultRetries = 3 // Default number of retries on token expiry + TimeFormat = "2006-01-02T15:04:05" // Python date format for json replies parsed as UTC + UploadTar = "tar" // Data format specifier for Connection.BulkUpload(). + UploadTarGzip = "tar.gz" // Data format specifier for Connection.BulkUpload(). + UploadTarBzip2 = "tar.bz2" // Data format specifier for Connection.BulkUpload(). + allContainersLimit = 10000 // Number of containers to fetch at once + allObjectsLimit = 10000 // Number objects to fetch at once + allObjectsChanLimit = 1000 // ...when fetching to a channel +) + +// Connection holds the details of the connection to the swift server. +// +// You need to provide UserName, ApiKey and AuthUrl when you create a +// connection then call Authenticate on it. +// +// The auth version in use will be detected from the AuthURL - you can +// override this with the AuthVersion parameter. +// +// If using v2 auth you can also set Region in the Connection +// structure. If you don't set Region you will get the default region +// which may not be what you want. +// +// For reference some common AuthUrls looks like this: +// +// Rackspace US https://auth.api.rackspacecloud.com/v1.0 +// Rackspace UK https://lon.auth.api.rackspacecloud.com/v1.0 +// Rackspace v2 https://identity.api.rackspacecloud.com/v2.0 +// Memset Memstore UK https://auth.storage.memset.com/v1.0 +// Memstore v2 https://auth.storage.memset.com/v2.0 +// +// When using Google Appengine you must provide the Connection with an +// appengine-specific Transport: +// +// import ( +// "appengine/urlfetch" +// "fmt" +// "github.com/ncw/swift" +// ) +// +// func handler(w http.ResponseWriter, r *http.Request) { +// ctx := appengine.NewContext(r) +// tr := urlfetch.Transport{Context: ctx} +// c := swift.Connection{ +// UserName: "user", +// ApiKey: "key", +// AuthUrl: "auth_url", +// Transport: tr, +// } +// _ := c.Authenticate() +// containers, _ := c.ContainerNames(nil) +// fmt.Fprintf(w, "containers: %q", containers) +// } +// +// If you don't supply a Transport, one is made which relies on +// http.ProxyFromEnvironment (http://golang.org/pkg/net/http/#ProxyFromEnvironment). +// This means that the connection will respect the HTTP proxy specified by the +// environment variables $HTTP_PROXY and $NO_PROXY. +type Connection struct { + // Parameters - fill these in before calling Authenticate + // They are all optional except UserName, ApiKey and AuthUrl + UserName string // UserName for api + ApiKey string // Key for api access + AuthUrl string // Auth URL + Retries int // Retries on error (default is 3) + UserAgent string // Http User agent (default goswift/1.0) + ConnectTimeout time.Duration // Connect channel timeout (default 10s) + Timeout time.Duration // Data channel timeout (default 60s) + Region string // Region to use eg "LON", "ORD" - default is use first region (V2 auth only) + AuthVersion int // Set to 1 or 2 or leave at 0 for autodetect + Internal bool // Set this to true to use the the internal / service network + Tenant string // Name of the tenant (v2 auth only) + TenantId string // Id of the tenant (v2 auth only) + Transport http.RoundTripper `json:"-" xml:"-"` // Optional specialised http.Transport (eg. for Google Appengine) + // These are filled in after Authenticate is called as are the defaults for above + StorageUrl string + AuthToken string + client *http.Client + Auth Authenticator `json:"-" xml:"-"` // the current authenticator + authLock sync.Mutex // lock when R/W StorageUrl, AuthToken, Auth +} + +// Error - all errors generated by this package are of this type. Other error +// may be passed on from library functions though. +type Error struct { + StatusCode int // HTTP status code if relevant or 0 if not + Text string +} + +// Error satisfy the error interface. +func (e *Error) Error() string { + return e.Text +} + +// newError make a new error from a string. +func newError(StatusCode int, Text string) *Error { + return &Error{ + StatusCode: StatusCode, + Text: Text, + } +} + +// newErrorf makes a new error from sprintf parameters. +func newErrorf(StatusCode int, Text string, Parameters ...interface{}) *Error { + return newError(StatusCode, fmt.Sprintf(Text, Parameters...)) +} + +// errorMap defines http error codes to error mappings. +type errorMap map[int]error + +var ( + // Specific Errors you might want to check for equality + BadRequest = newError(400, "Bad Request") + AuthorizationFailed = newError(401, "Authorization Failed") + ContainerNotFound = newError(404, "Container Not Found") + ContainerNotEmpty = newError(409, "Container Not Empty") + ObjectNotFound = newError(404, "Object Not Found") + ObjectCorrupted = newError(422, "Object Corrupted") + TimeoutError = newError(408, "Timeout when reading or writing data") + Forbidden = newError(403, "Operation forbidden") + TooLargeObject = newError(413, "Too Large Object") + + // Mappings for authentication errors + authErrorMap = errorMap{ + 400: BadRequest, + 401: AuthorizationFailed, + 403: Forbidden, + } + + // Mappings for container errors + ContainerErrorMap = errorMap{ + 400: BadRequest, + 403: Forbidden, + 404: ContainerNotFound, + 409: ContainerNotEmpty, + } + + // Mappings for object errors + objectErrorMap = errorMap{ + 400: BadRequest, + 403: Forbidden, + 404: ObjectNotFound, + 413: TooLargeObject, + 422: ObjectCorrupted, + } +) + +// checkClose is used to check the return from Close in a defer +// statement. +func checkClose(c io.Closer, err *error) { + cerr := c.Close() + if *err == nil { + *err = cerr + } +} + +// parseHeaders checks a response for errors and translates into +// standard errors if necessary. +func (c *Connection) parseHeaders(resp *http.Response, errorMap errorMap) error { + if errorMap != nil { + if err, ok := errorMap[resp.StatusCode]; ok { + return err + } + } + if resp.StatusCode < 200 || resp.StatusCode > 299 { + return newErrorf(resp.StatusCode, "HTTP Error: %d: %s", resp.StatusCode, resp.Status) + } + return nil +} + +// readHeaders returns a Headers object from the http.Response. +// +// Logs a warning if receives multiple values for a key (which +// should never happen) +func readHeaders(resp *http.Response) Headers { + headers := Headers{} + for key, values := range resp.Header { + headers[key] = values[0] + if len(values) > 1 { + log.Printf("swift: received multiple values for header %q", key) + } + } + return headers +} + +// Headers stores HTTP headers (can only have one of each header like Swift). +type Headers map[string]string + +// Does an http request using the running timer passed in +func (c *Connection) doTimeoutRequest(timer *time.Timer, req *http.Request) (*http.Response, error) { + // Do the request in the background so we can check the timeout + type result struct { + resp *http.Response + err error + } + done := make(chan result, 1) + go func() { + resp, err := c.client.Do(req) + done <- result{resp, err} + }() + // Wait for the read or the timeout + select { + case r := <-done: + return r.resp, r.err + case <-timer.C: + // Kill the connection on timeout so we don't leak sockets or goroutines + cancelRequest(c.Transport, req) + return nil, TimeoutError + } + panic("unreachable") // For Go 1.0 +} + +// Set defaults for any unset values +// +// Call with authLock held +func (c *Connection) setDefaults() { + if c.UserAgent == "" { + c.UserAgent = DefaultUserAgent + } + if c.Retries == 0 { + c.Retries = DefaultRetries + } + if c.ConnectTimeout == 0 { + c.ConnectTimeout = 10 * time.Second + } + if c.Timeout == 0 { + c.Timeout = 60 * time.Second + } + if c.Transport == nil { + c.Transport = &http.Transport{ + // TLSClientConfig: &tls.Config{RootCAs: pool}, + // DisableCompression: true, + Proxy: http.ProxyFromEnvironment, + MaxIdleConnsPerHost: 2048, + } + } + if c.client == nil { + c.client = &http.Client{ + // CheckRedirect: redirectPolicyFunc, + Transport: c.Transport, + } + } +} + +// Authenticate connects to the Swift server. +// +// If you don't call it before calling one of the connection methods +// then it will be called for you on the first access. +func (c *Connection) Authenticate() (err error) { + c.authLock.Lock() + defer c.authLock.Unlock() + return c.authenticate() +} + +// Internal implementation of Authenticate +// +// Call with authLock held +func (c *Connection) authenticate() (err error) { + c.setDefaults() + + // Flush the keepalives connection - if we are + // re-authenticating then stuff has gone wrong + flushKeepaliveConnections(c.Transport) + + if c.Auth == nil { + c.Auth, err = newAuth(c) + if err != nil { + return + } + } + + retries := 1 +again: + var req *http.Request + req, err = c.Auth.Request(c) + if err != nil { + return + } + timer := time.NewTimer(c.ConnectTimeout) + var resp *http.Response + resp, err = c.doTimeoutRequest(timer, req) + if err != nil { + return + } + defer func() { + checkClose(resp.Body, &err) + // Flush the auth connection - we don't want to keep + // it open if keepalives were enabled + flushKeepaliveConnections(c.Transport) + }() + if err = c.parseHeaders(resp, authErrorMap); err != nil { + // Try again for a limited number of times on + // AuthorizationFailed or BadRequest. This allows us + // to try some alternate forms of the request + if (err == AuthorizationFailed || err == BadRequest) && retries > 0 { + retries-- + goto again + } + return + } + err = c.Auth.Response(resp) + if err != nil { + return + } + c.StorageUrl = c.Auth.StorageUrl(c.Internal) + c.AuthToken = c.Auth.Token() + if !c.authenticated() { + err = newError(0, "Response didn't have storage url and auth token") + return + } + return +} + +// Get an authToken and url +// +// The Url may be updated if it needed to authenticate using the OnReAuth function +func (c *Connection) getUrlAndAuthToken(targetUrlIn string, OnReAuth func() (string, error)) (targetUrlOut, authToken string, err error) { + c.authLock.Lock() + defer c.authLock.Unlock() + targetUrlOut = targetUrlIn + if !c.authenticated() { + err = c.authenticate() + if err != nil { + return + } + if OnReAuth != nil { + targetUrlOut, err = OnReAuth() + if err != nil { + return + } + } + } + authToken = c.AuthToken + return +} + +// flushKeepaliveConnections is called to flush pending requests after an error. +func flushKeepaliveConnections(transport http.RoundTripper) { + if tr, ok := transport.(interface { + CloseIdleConnections() + }); ok { + tr.CloseIdleConnections() + } +} + +// UnAuthenticate removes the authentication from the Connection. +func (c *Connection) UnAuthenticate() { + c.authLock.Lock() + c.StorageUrl = "" + c.AuthToken = "" + c.authLock.Unlock() +} + +// Authenticated returns a boolean to show if the current connection +// is authenticated. +// +// Doesn't actually check the credentials against the server. +func (c *Connection) Authenticated() bool { + c.authLock.Lock() + defer c.authLock.Unlock() + return c.authenticated() +} + +// Internal version of Authenticated() +// +// Call with authLock held +func (c *Connection) authenticated() bool { + return c.StorageUrl != "" && c.AuthToken != "" +} + +// RequestOpts contains parameters for Connection.storage. +type RequestOpts struct { + Container string + ObjectName string + Operation string + Parameters url.Values + Headers Headers + ErrorMap errorMap + NoResponse bool + Body io.Reader + Retries int + // if set this is called on re-authentication to refresh the targetUrl + OnReAuth func() (string, error) +} + +// Call runs a remote command on the targetUrl, returns a +// response, headers and possible error. +// +// operation is GET, HEAD etc +// container is the name of a container +// Any other parameters (if not None) are added to the targetUrl +// +// Returns a response or an error. If response is returned then +// resp.Body.Close() must be called on it, unless noResponse is set in +// which case the body will be closed in this function +// +// This will Authenticate if necessary, and re-authenticate if it +// receives a 401 error which means the token has expired +// +// This method is exported so extensions can call it. +func (c *Connection) Call(targetUrl string, p RequestOpts) (resp *http.Response, headers Headers, err error) { + c.authLock.Lock() + c.setDefaults() + c.authLock.Unlock() + retries := p.Retries + if retries == 0 { + retries = c.Retries + } + var req *http.Request + for { + var authToken string + targetUrl, authToken, err = c.getUrlAndAuthToken(targetUrl, p.OnReAuth) + + var URL *url.URL + URL, err = url.Parse(targetUrl) + if err != nil { + return + } + if p.Container != "" { + URL.Path += "/" + p.Container + if p.ObjectName != "" { + URL.Path += "/" + p.ObjectName + } + } + if p.Parameters != nil { + URL.RawQuery = p.Parameters.Encode() + } + timer := time.NewTimer(c.ConnectTimeout) + reader := p.Body + if reader != nil { + reader = newWatchdogReader(reader, c.Timeout, timer) + } + req, err = http.NewRequest(p.Operation, URL.String(), reader) + if err != nil { + return + } + if p.Headers != nil { + for k, v := range p.Headers { + req.Header.Add(k, v) + } + } + req.Header.Add("User-Agent", DefaultUserAgent) + req.Header.Add("X-Auth-Token", authToken) + resp, err = c.doTimeoutRequest(timer, req) + if err != nil { + // Because of https://github.com/golang/go/issues/4677, + // we sometimes get an url.Error error embedding an io.EOF error. + // In that case, we simply retry to send the request + if urlError, ok := err.(*url.Error); ok { + if urlError.Err == io.EOF && (p.Operation == "HEAD" || p.Operation == "GET") { + retries--; + continue + } + } + return + } + // Check to see if token has expired + if resp.StatusCode == 401 && retries > 0 { + _ = resp.Body.Close() + c.UnAuthenticate() + retries-- + } else { + break + } + } + + if err = c.parseHeaders(resp, p.ErrorMap); err != nil { + _ = resp.Body.Close() + return nil, nil, err + } + headers = readHeaders(resp) + if p.NoResponse { + err = resp.Body.Close() + if err != nil { + return nil, nil, err + } + } else { + // Cancel the request on timeout + cancel := func() { + cancelRequest(c.Transport, req) + } + // Wrap resp.Body to make it obey an idle timeout + resp.Body = newTimeoutReader(resp.Body, c.Timeout, cancel) + } + return +} + +// storage runs a remote command on a the storage url, returns a +// response, headers and possible error. +// +// operation is GET, HEAD etc +// container is the name of a container +// Any other parameters (if not None) are added to the storage url +// +// Returns a response or an error. If response is returned then +// resp.Body.Close() must be called on it, unless noResponse is set in +// which case the body will be closed in this function +// +// This will Authenticate if necessary, and re-authenticate if it +// receives a 401 error which means the token has expired +func (c *Connection) storage(p RequestOpts) (resp *http.Response, headers Headers, err error) { + p.OnReAuth = func() (string, error) { + return c.StorageUrl, nil + } + c.authLock.Lock() + url := c.StorageUrl + c.authLock.Unlock() + return c.Call(url, p) +} + +// readLines reads the response into an array of strings. +// +// Closes the response when done +func readLines(resp *http.Response) (lines []string, err error) { + defer checkClose(resp.Body, &err) + reader := bufio.NewReader(resp.Body) + buffer := bytes.NewBuffer(make([]byte, 0, 128)) + var part []byte + var prefix bool + for { + if part, prefix, err = reader.ReadLine(); err != nil { + break + } + buffer.Write(part) + if !prefix { + lines = append(lines, buffer.String()) + buffer.Reset() + } + } + if err == io.EOF { + err = nil + } + return +} + +// readJson reads the response into the json type passed in +// +// Closes the response when done +func readJson(resp *http.Response, result interface{}) (err error) { + defer checkClose(resp.Body, &err) + decoder := json.NewDecoder(resp.Body) + return decoder.Decode(result) +} + +/* ------------------------------------------------------------ */ + +// ContainersOpts is options for Containers() and ContainerNames() +type ContainersOpts struct { + Limit int // For an integer value n, limits the number of results to at most n values. + Marker string // Given a string value x, return object names greater in value than the specified marker. + EndMarker string // Given a string value x, return container names less in value than the specified marker. + Headers Headers // Any additional HTTP headers - can be nil +} + +// parse the ContainerOpts +func (opts *ContainersOpts) parse() (url.Values, Headers) { + v := url.Values{} + var h Headers + if opts != nil { + if opts.Limit > 0 { + v.Set("limit", strconv.Itoa(opts.Limit)) + } + if opts.Marker != "" { + v.Set("marker", opts.Marker) + } + if opts.EndMarker != "" { + v.Set("end_marker", opts.EndMarker) + } + h = opts.Headers + } + return v, h +} + +// ContainerNames returns a slice of names of containers in this account. +func (c *Connection) ContainerNames(opts *ContainersOpts) ([]string, error) { + v, h := opts.parse() + resp, _, err := c.storage(RequestOpts{ + Operation: "GET", + Parameters: v, + ErrorMap: ContainerErrorMap, + Headers: h, + }) + if err != nil { + return nil, err + } + lines, err := readLines(resp) + return lines, err +} + +// Container contains information about a container +type Container struct { + Name string // Name of the container + Count int64 // Number of objects in the container + Bytes int64 // Total number of bytes used in the container +} + +// Containers returns a slice of structures with full information as +// described in Container. +func (c *Connection) Containers(opts *ContainersOpts) ([]Container, error) { + v, h := opts.parse() + v.Set("format", "json") + resp, _, err := c.storage(RequestOpts{ + Operation: "GET", + Parameters: v, + ErrorMap: ContainerErrorMap, + Headers: h, + }) + if err != nil { + return nil, err + } + var containers []Container + err = readJson(resp, &containers) + return containers, err +} + +// containersAllOpts makes a copy of opts if set or makes a new one and +// overrides Limit and Marker +func containersAllOpts(opts *ContainersOpts) *ContainersOpts { + var newOpts ContainersOpts + if opts != nil { + newOpts = *opts + } + if newOpts.Limit == 0 { + newOpts.Limit = allContainersLimit + } + newOpts.Marker = "" + return &newOpts +} + +// ContainersAll is like Containers but it returns all the Containers +// +// It calls Containers multiple times using the Marker parameter +// +// It has a default Limit parameter but you may pass in your own +func (c *Connection) ContainersAll(opts *ContainersOpts) ([]Container, error) { + opts = containersAllOpts(opts) + containers := make([]Container, 0) + for { + newContainers, err := c.Containers(opts) + if err != nil { + return nil, err + } + containers = append(containers, newContainers...) + if len(newContainers) < opts.Limit { + break + } + opts.Marker = newContainers[len(newContainers)-1].Name + } + return containers, nil +} + +// ContainerNamesAll is like ContainerNamess but it returns all the Containers +// +// It calls ContainerNames multiple times using the Marker parameter +// +// It has a default Limit parameter but you may pass in your own +func (c *Connection) ContainerNamesAll(opts *ContainersOpts) ([]string, error) { + opts = containersAllOpts(opts) + containers := make([]string, 0) + for { + newContainers, err := c.ContainerNames(opts) + if err != nil { + return nil, err + } + containers = append(containers, newContainers...) + if len(newContainers) < opts.Limit { + break + } + opts.Marker = newContainers[len(newContainers)-1] + } + return containers, nil +} + +/* ------------------------------------------------------------ */ + +// ObjectOpts is options for Objects() and ObjectNames() +type ObjectsOpts struct { + Limit int // For an integer value n, limits the number of results to at most n values. + Marker string // Given a string value x, return object names greater in value than the specified marker. + EndMarker string // Given a string value x, return object names less in value than the specified marker + Prefix string // For a string value x, causes the results to be limited to object names beginning with the substring x. + Path string // For a string value x, return the object names nested in the pseudo path + Delimiter rune // For a character c, return all the object names nested in the container + Headers Headers // Any additional HTTP headers - can be nil +} + +// parse reads values out of ObjectsOpts +func (opts *ObjectsOpts) parse() (url.Values, Headers) { + v := url.Values{} + var h Headers + if opts != nil { + if opts.Limit > 0 { + v.Set("limit", strconv.Itoa(opts.Limit)) + } + if opts.Marker != "" { + v.Set("marker", opts.Marker) + } + if opts.EndMarker != "" { + v.Set("end_marker", opts.EndMarker) + } + if opts.Prefix != "" { + v.Set("prefix", opts.Prefix) + } + if opts.Path != "" { + v.Set("path", opts.Path) + } + if opts.Delimiter != 0 { + v.Set("delimiter", string(opts.Delimiter)) + } + h = opts.Headers + } + return v, h +} + +// ObjectNames returns a slice of names of objects in a given container. +func (c *Connection) ObjectNames(container string, opts *ObjectsOpts) ([]string, error) { + v, h := opts.parse() + resp, _, err := c.storage(RequestOpts{ + Container: container, + Operation: "GET", + Parameters: v, + ErrorMap: ContainerErrorMap, + Headers: h, + }) + if err != nil { + return nil, err + } + return readLines(resp) +} + +// Object contains information about an object +type Object struct { + Name string `json:"name"` // object name + ContentType string `json:"content_type"` // eg application/directory + Bytes int64 `json:"bytes"` // size in bytes + ServerLastModified string `json:"last_modified"` // Last modified time, eg '2011-06-30T08:20:47.736680' as a string supplied by the server + LastModified time.Time // Last modified time converted to a time.Time + Hash string `json:"hash"` // MD5 hash, eg "d41d8cd98f00b204e9800998ecf8427e" + PseudoDirectory bool // Set when using delimiter to show that this directory object does not really exist + SubDir string `json:"subdir"` // returned only when using delimiter to mark "pseudo directories" +} + +// Objects returns a slice of Object with information about each +// object in the container. +// +// If Delimiter is set in the opts then PseudoDirectory may be set, +// with ContentType 'application/directory'. These are not real +// objects but represent directories of objects which haven't had an +// object created for them. +func (c *Connection) Objects(container string, opts *ObjectsOpts) ([]Object, error) { + v, h := opts.parse() + v.Set("format", "json") + resp, _, err := c.storage(RequestOpts{ + Container: container, + Operation: "GET", + Parameters: v, + ErrorMap: ContainerErrorMap, + Headers: h, + }) + if err != nil { + return nil, err + } + var objects []Object + err = readJson(resp, &objects) + // Convert Pseudo directories and dates + for i := range objects { + object := &objects[i] + if object.SubDir != "" { + object.Name = object.SubDir + object.PseudoDirectory = true + object.ContentType = "application/directory" + } + if object.ServerLastModified != "" { + // 2012-11-11T14:49:47.887250 + // + // Remove fractional seconds if present. This + // then keeps it consistent with Object + // which can only return timestamps accurate + // to 1 second + // + // The TimeFormat will parse fractional + // seconds if desired though + datetime := strings.SplitN(object.ServerLastModified, ".", 2)[0] + object.LastModified, err = time.Parse(TimeFormat, datetime) + if err != nil { + return nil, err + } + } + } + return objects, err +} + +// objectsAllOpts makes a copy of opts if set or makes a new one and +// overrides Limit and Marker +func objectsAllOpts(opts *ObjectsOpts, Limit int) *ObjectsOpts { + var newOpts ObjectsOpts + if opts != nil { + newOpts = *opts + } + if newOpts.Limit == 0 { + newOpts.Limit = Limit + } + newOpts.Marker = "" + return &newOpts +} + +// A closure defined by the caller to iterate through all objects +// +// Call Objects or ObjectNames from here with the *ObjectOpts passed in +// +// Do whatever is required with the results then return them +type ObjectsWalkFn func(*ObjectsOpts) (interface{}, error) + +// ObjectsWalk is uses to iterate through all the objects in chunks as +// returned by Objects or ObjectNames using the Marker and Limit +// parameters in the ObjectsOpts. +// +// Pass in a closure `walkFn` which calls Objects or ObjectNames with +// the *ObjectsOpts passed to it and does something with the results. +// +// Errors will be returned from this function +// +// It has a default Limit parameter but you may pass in your own +func (c *Connection) ObjectsWalk(container string, opts *ObjectsOpts, walkFn ObjectsWalkFn) error { + opts = objectsAllOpts(opts, allObjectsChanLimit) + for { + objects, err := walkFn(opts) + if err != nil { + return err + } + var n int + var last string + switch objects := objects.(type) { + case []string: + n = len(objects) + if n > 0 { + last = objects[len(objects)-1] + } + case []Object: + n = len(objects) + if n > 0 { + last = objects[len(objects)-1].Name + } + default: + panic("Unknown type returned to ObjectsWalk") + } + if n < opts.Limit { + break + } + opts.Marker = last + } + return nil +} + +// ObjectsAll is like Objects but it returns an unlimited number of Objects in a slice +// +// It calls Objects multiple times using the Marker parameter +func (c *Connection) ObjectsAll(container string, opts *ObjectsOpts) ([]Object, error) { + objects := make([]Object, 0) + err := c.ObjectsWalk(container, opts, func(opts *ObjectsOpts) (interface{}, error) { + newObjects, err := c.Objects(container, opts) + if err == nil { + objects = append(objects, newObjects...) + } + return newObjects, err + }) + return objects, err +} + +// ObjectNamesAll is like ObjectNames but it returns all the Objects +// +// It calls ObjectNames multiple times using the Marker parameter +// +// It has a default Limit parameter but you may pass in your own +func (c *Connection) ObjectNamesAll(container string, opts *ObjectsOpts) ([]string, error) { + objects := make([]string, 0) + err := c.ObjectsWalk(container, opts, func(opts *ObjectsOpts) (interface{}, error) { + newObjects, err := c.ObjectNames(container, opts) + if err == nil { + objects = append(objects, newObjects...) + } + return newObjects, err + }) + return objects, err +} + +// Account contains information about this account. +type Account struct { + BytesUsed int64 // total number of bytes used + Containers int64 // total number of containers + Objects int64 // total number of objects +} + +// getInt64FromHeader is a helper function to decode int64 from header. +func getInt64FromHeader(resp *http.Response, header string) (result int64, err error) { + value := resp.Header.Get(header) + result, err = strconv.ParseInt(value, 10, 64) + if err != nil { + err = newErrorf(0, "Bad Header '%s': '%s': %s", header, value, err) + } + return +} + +// Account returns info about the account in an Account struct. +func (c *Connection) Account() (info Account, headers Headers, err error) { + var resp *http.Response + resp, headers, err = c.storage(RequestOpts{ + Operation: "HEAD", + ErrorMap: ContainerErrorMap, + NoResponse: true, + }) + if err != nil { + return + } + // Parse the headers into a dict + // + // {'Accept-Ranges': 'bytes', + // 'Content-Length': '0', + // 'Date': 'Tue, 05 Jul 2011 16:37:06 GMT', + // 'X-Account-Bytes-Used': '316598182', + // 'X-Account-Container-Count': '4', + // 'X-Account-Object-Count': '1433'} + if info.BytesUsed, err = getInt64FromHeader(resp, "X-Account-Bytes-Used"); err != nil { + return + } + if info.Containers, err = getInt64FromHeader(resp, "X-Account-Container-Count"); err != nil { + return + } + if info.Objects, err = getInt64FromHeader(resp, "X-Account-Object-Count"); err != nil { + return + } + return +} + +// AccountUpdate adds, replaces or remove account metadata. +// +// Add or update keys by mentioning them in the Headers. +// +// Remove keys by setting them to an empty string. +func (c *Connection) AccountUpdate(h Headers) error { + _, _, err := c.storage(RequestOpts{ + Operation: "POST", + ErrorMap: ContainerErrorMap, + NoResponse: true, + Headers: h, + }) + return err +} + +// ContainerCreate creates a container. +// +// If you don't want to add Headers just pass in nil +// +// No error is returned if it already exists but the metadata if any will be updated. +func (c *Connection) ContainerCreate(container string, h Headers) error { + _, _, err := c.storage(RequestOpts{ + Container: container, + Operation: "PUT", + ErrorMap: ContainerErrorMap, + NoResponse: true, + Headers: h, + }) + return err +} + +// ContainerDelete deletes a container. +// +// May return ContainerDoesNotExist or ContainerNotEmpty +func (c *Connection) ContainerDelete(container string) error { + _, _, err := c.storage(RequestOpts{ + Container: container, + Operation: "DELETE", + ErrorMap: ContainerErrorMap, + NoResponse: true, + }) + return err +} + +// Container returns info about a single container including any +// metadata in the headers. +func (c *Connection) Container(container string) (info Container, headers Headers, err error) { + var resp *http.Response + resp, headers, err = c.storage(RequestOpts{ + Container: container, + Operation: "HEAD", + ErrorMap: ContainerErrorMap, + NoResponse: true, + }) + if err != nil { + return + } + // Parse the headers into the struct + info.Name = container + if info.Bytes, err = getInt64FromHeader(resp, "X-Container-Bytes-Used"); err != nil { + return + } + if info.Count, err = getInt64FromHeader(resp, "X-Container-Object-Count"); err != nil { + return + } + return +} + +// ContainerUpdate adds, replaces or removes container metadata. +// +// Add or update keys by mentioning them in the Metadata. +// +// Remove keys by setting them to an empty string. +// +// Container metadata can only be read with Container() not with Containers(). +func (c *Connection) ContainerUpdate(container string, h Headers) error { + _, _, err := c.storage(RequestOpts{ + Container: container, + Operation: "POST", + ErrorMap: ContainerErrorMap, + NoResponse: true, + Headers: h, + }) + return err +} + +// ------------------------------------------------------------ + +// ObjectCreateFile represents a swift object open for writing +type ObjectCreateFile struct { + checkHash bool // whether we are checking the hash + pipeReader *io.PipeReader // pipe for the caller to use + pipeWriter *io.PipeWriter + hash hash.Hash // hash being build up as we go along + done chan struct{} // signals when the upload has finished + resp *http.Response // valid when done has signalled + err error // ditto + headers Headers // ditto +} + +// Write bytes to the object - see io.Writer +func (file *ObjectCreateFile) Write(p []byte) (n int, err error) { + n, err = file.pipeWriter.Write(p) + if err == io.ErrClosedPipe { + if file.err != nil { + return 0, file.err + } + return 0, newError(500, "Write on closed file") + } + if err == nil && file.checkHash { + _, _ = file.hash.Write(p) + } + return +} + +// Close the object and checks the md5sum if it was required. +// +// Also returns any other errors from the server (eg container not +// found) so it is very important to check the errors on this method. +func (file *ObjectCreateFile) Close() error { + // Close the body + err := file.pipeWriter.Close() + if err != nil { + return err + } + + // Wait for the HTTP operation to complete + <-file.done + + // Check errors + if file.err != nil { + return file.err + } + if file.checkHash { + receivedMd5 := strings.ToLower(file.headers["Etag"]) + calculatedMd5 := fmt.Sprintf("%x", file.hash.Sum(nil)) + if receivedMd5 != calculatedMd5 { + return ObjectCorrupted + } + } + return nil +} + +// Check it satisfies the interface +var _ io.WriteCloser = &ObjectCreateFile{} + +// objectPutHeaders create a set of headers for a PUT +// +// It guesses the contentType from the objectName if it isn't set +// +// checkHash may be changed +func objectPutHeaders(objectName string, checkHash *bool, Hash string, contentType string, h Headers) Headers { + if contentType == "" { + contentType = mime.TypeByExtension(path.Ext(objectName)) + if contentType == "" { + contentType = "application/octet-stream" + } + } + // Meta stuff + extraHeaders := map[string]string{ + "Content-Type": contentType, + } + for key, value := range h { + extraHeaders[key] = value + } + if Hash != "" { + extraHeaders["Etag"] = Hash + *checkHash = false // the server will do it + } + return extraHeaders +} + +// ObjectCreate creates or updates the object in the container. It +// returns an io.WriteCloser you should write the contents to. You +// MUST call Close() on it and you MUST check the error return from +// Close(). +// +// If checkHash is True then it will calculate the MD5 Hash of the +// file as it is being uploaded and check it against that returned +// from the server. If it is wrong then it will return +// ObjectCorrupted on Close() +// +// If you know the MD5 hash of the object ahead of time then set the +// Hash parameter and it will be sent to the server (as an Etag +// header) and the server will check the MD5 itself after the upload, +// and this will return ObjectCorrupted on Close() if it is incorrect. +// +// If you don't want any error protection (not recommended) then set +// checkHash to false and Hash to "". +// +// If contentType is set it will be used, otherwise one will be +// guessed from objectName using mime.TypeByExtension +func (c *Connection) ObjectCreate(container string, objectName string, checkHash bool, Hash string, contentType string, h Headers) (file *ObjectCreateFile, err error) { + extraHeaders := objectPutHeaders(objectName, &checkHash, Hash, contentType, h) + pipeReader, pipeWriter := io.Pipe() + file = &ObjectCreateFile{ + hash: md5.New(), + checkHash: checkHash, + pipeReader: pipeReader, + pipeWriter: pipeWriter, + done: make(chan struct{}), + } + // Run the PUT in the background piping it data + go func() { + file.resp, file.headers, file.err = c.storage(RequestOpts{ + Container: container, + ObjectName: objectName, + Operation: "PUT", + Headers: extraHeaders, + Body: pipeReader, + NoResponse: true, + ErrorMap: objectErrorMap, + }) + // Signal finished + pipeReader.Close() + close(file.done) + }() + return +} + +// ObjectPut creates or updates the path in the container from +// contents. contents should be an open io.Reader which will have all +// its contents read. +// +// This is a low level interface. +// +// If checkHash is True then it will calculate the MD5 Hash of the +// file as it is being uploaded and check it against that returned +// from the server. If it is wrong then it will return +// ObjectCorrupted. +// +// If you know the MD5 hash of the object ahead of time then set the +// Hash parameter and it will be sent to the server (as an Etag +// header) and the server will check the MD5 itself after the upload, +// and this will return ObjectCorrupted if it is incorrect. +// +// If you don't want any error protection (not recommended) then set +// checkHash to false and Hash to "". +// +// If contentType is set it will be used, otherwise one will be +// guessed from objectName using mime.TypeByExtension +func (c *Connection) ObjectPut(container string, objectName string, contents io.Reader, checkHash bool, Hash string, contentType string, h Headers) (headers Headers, err error) { + extraHeaders := objectPutHeaders(objectName, &checkHash, Hash, contentType, h) + hash := md5.New() + var body io.Reader = contents + if checkHash { + body = io.TeeReader(contents, hash) + } + _, headers, err = c.storage(RequestOpts{ + Container: container, + ObjectName: objectName, + Operation: "PUT", + Headers: extraHeaders, + Body: body, + NoResponse: true, + ErrorMap: objectErrorMap, + }) + if err != nil { + return + } + if checkHash { + receivedMd5 := strings.ToLower(headers["Etag"]) + calculatedMd5 := fmt.Sprintf("%x", hash.Sum(nil)) + if receivedMd5 != calculatedMd5 { + err = ObjectCorrupted + return + } + } + return +} + +// ObjectPutBytes creates an object from a []byte in a container. +// +// This is a simplified interface which checks the MD5. +func (c *Connection) ObjectPutBytes(container string, objectName string, contents []byte, contentType string) (err error) { + buf := bytes.NewBuffer(contents) + _, err = c.ObjectPut(container, objectName, buf, true, "", contentType, nil) + return +} + +// ObjectPutString creates an object from a string in a container. +// +// This is a simplified interface which checks the MD5 +func (c *Connection) ObjectPutString(container string, objectName string, contents string, contentType string) (err error) { + buf := strings.NewReader(contents) + _, err = c.ObjectPut(container, objectName, buf, true, "", contentType, nil) + return +} + +// ObjectOpenFile represents a swift object open for reading +type ObjectOpenFile struct { + connection *Connection // stored copy of Connection used in Open + container string // stored copy of container used in Open + objectName string // stored copy of objectName used in Open + headers Headers // stored copy of headers used in Open + resp *http.Response // http connection + body io.Reader // read data from this + checkHash bool // true if checking MD5 + hash hash.Hash // currently accumulating MD5 + bytes int64 // number of bytes read on this connection + eof bool // whether we have read end of file + pos int64 // current position when reading + lengthOk bool // whether length is valid + length int64 // length of the object if read + seeked bool // whether we have seeked this file or not +} + +// Read bytes from the object - see io.Reader +func (file *ObjectOpenFile) Read(p []byte) (n int, err error) { + n, err = file.body.Read(p) + file.bytes += int64(n) + file.pos += int64(n) + if err == io.EOF { + file.eof = true + } + return +} + +// Seek sets the offset for the next Read to offset, interpreted +// according to whence: 0 means relative to the origin of the file, 1 +// means relative to the current offset, and 2 means relative to the +// end. Seek returns the new offset and an Error, if any. +// +// Seek uses HTTP Range headers which, if the file pointer is moved, +// will involve reopening the HTTP connection. +// +// Note that you can't seek to the end of a file or beyond; HTTP Range +// requests don't support the file pointer being outside the data, +// unlike os.File +// +// Seek(0, 1) will return the current file pointer. +func (file *ObjectOpenFile) Seek(offset int64, whence int) (newPos int64, err error) { + switch whence { + case 0: // relative to start + newPos = offset + case 1: // relative to current + newPos = file.pos + offset + case 2: // relative to end + if !file.lengthOk { + return file.pos, newError(0, "Length of file unknown so can't seek from end") + } + newPos = file.length + offset + default: + panic("Unknown whence in ObjectOpenFile.Seek") + } + // If at correct position (quite likely), do nothing + if newPos == file.pos { + return + } + // Close the file... + file.seeked = true + err = file.Close() + if err != nil { + return + } + // ...and re-open with a Range header + if file.headers == nil { + file.headers = Headers{} + } + if newPos > 0 { + file.headers["Range"] = fmt.Sprintf("bytes=%d-", newPos) + } else { + delete(file.headers, "Range") + } + newFile, _, err := file.connection.ObjectOpen(file.container, file.objectName, false, file.headers) + if err != nil { + return + } + // Update the file + file.resp = newFile.resp + file.body = newFile.body + file.checkHash = false + file.pos = newPos + return +} + +// Length gets the objects content length either from a cached copy or +// from the server. +func (file *ObjectOpenFile) Length() (int64, error) { + if !file.lengthOk { + info, _, err := file.connection.Object(file.container, file.objectName) + file.length = info.Bytes + file.lengthOk = (err == nil) + return file.length, err + } + return file.length, nil +} + +// Close the object and checks the length and md5sum if it was +// required and all the object was read +func (file *ObjectOpenFile) Close() (err error) { + // Close the body at the end + defer checkClose(file.resp.Body, &err) + + // If not end of file or seeked then can't check anything + if !file.eof || file.seeked { + return + } + + // Check the MD5 sum if requested + if file.checkHash { + receivedMd5 := strings.ToLower(file.resp.Header.Get("Etag")) + calculatedMd5 := fmt.Sprintf("%x", file.hash.Sum(nil)) + if receivedMd5 != calculatedMd5 { + err = ObjectCorrupted + return + } + } + + // Check to see we read the correct number of bytes + if file.lengthOk && file.length != file.bytes { + err = ObjectCorrupted + return + } + return +} + +// Check it satisfies the interfaces +var _ io.ReadCloser = &ObjectOpenFile{} +var _ io.Seeker = &ObjectOpenFile{} + +// ObjectOpen returns an ObjectOpenFile for reading the contents of +// the object. This satisfies the io.ReadCloser and the io.Seeker +// interfaces. +// +// You must call Close() on contents when finished +// +// Returns the headers of the response. +// +// If checkHash is true then it will calculate the md5sum of the file +// as it is being received and check it against that returned from the +// server. If it is wrong then it will return ObjectCorrupted. It +// will also check the length returned. No checking will be done if +// you don't read all the contents. +// +// Note that objects with X-Object-Manifest set won't ever have their +// md5sum's checked as the md5sum reported on the object is actually +// the md5sum of the md5sums of the parts. This isn't very helpful to +// detect a corrupted download as the size of the parts aren't known +// without doing more operations. If you want to ensure integrity of +// an object with a manifest then you will need to download everything +// in the manifest separately. +// +// headers["Content-Type"] will give the content type if desired. +func (c *Connection) ObjectOpen(container string, objectName string, checkHash bool, h Headers) (file *ObjectOpenFile, headers Headers, err error) { + var resp *http.Response + resp, headers, err = c.storage(RequestOpts{ + Container: container, + ObjectName: objectName, + Operation: "GET", + ErrorMap: objectErrorMap, + Headers: h, + }) + if err != nil { + return + } + // Can't check MD5 on an object with X-Object-Manifest set + if checkHash && headers["X-Object-Manifest"] != "" { + // log.Printf("swift: turning off md5 checking on object with manifest %v", objectName) + checkHash = false + } + file = &ObjectOpenFile{ + connection: c, + container: container, + objectName: objectName, + headers: h, + resp: resp, + checkHash: checkHash, + body: resp.Body, + } + if checkHash { + file.hash = md5.New() + file.body = io.TeeReader(resp.Body, file.hash) + } + // Read Content-Length + file.length, err = getInt64FromHeader(resp, "Content-Length") + file.lengthOk = (err == nil) + return +} + +// ObjectGet gets the object into the io.Writer contents. +// +// Returns the headers of the response. +// +// If checkHash is true then it will calculate the md5sum of the file +// as it is being received and check it against that returned from the +// server. If it is wrong then it will return ObjectCorrupted. +// +// headers["Content-Type"] will give the content type if desired. +func (c *Connection) ObjectGet(container string, objectName string, contents io.Writer, checkHash bool, h Headers) (headers Headers, err error) { + file, headers, err := c.ObjectOpen(container, objectName, checkHash, h) + if err != nil { + return + } + defer checkClose(file, &err) + _, err = io.Copy(contents, file) + return +} + +// ObjectGetBytes returns an object as a []byte. +// +// This is a simplified interface which checks the MD5 +func (c *Connection) ObjectGetBytes(container string, objectName string) (contents []byte, err error) { + var buf bytes.Buffer + _, err = c.ObjectGet(container, objectName, &buf, true, nil) + contents = buf.Bytes() + return +} + +// ObjectGetString returns an object as a string. +// +// This is a simplified interface which checks the MD5 +func (c *Connection) ObjectGetString(container string, objectName string) (contents string, err error) { + var buf bytes.Buffer + _, err = c.ObjectGet(container, objectName, &buf, true, nil) + contents = buf.String() + return +} + +// ObjectDelete deletes the object. +// +// May return ObjectNotFound if the object isn't found +func (c *Connection) ObjectDelete(container string, objectName string) error { + _, _, err := c.storage(RequestOpts{ + Container: container, + ObjectName: objectName, + Operation: "DELETE", + ErrorMap: objectErrorMap, + }) + return err +} + +// parseResponseStatus parses string like "200 OK" and returns Error. +// +// For status codes beween 200 and 299, this returns nil. +func parseResponseStatus(resp string, errorMap errorMap) error { + code := 0 + reason := resp + t := strings.SplitN(resp, " ", 2) + if len(t) == 2 { + ncode, err := strconv.Atoi(t[0]) + if err == nil { + code = ncode + reason = t[1] + } + } + if errorMap != nil { + if err, ok := errorMap[code]; ok { + return err + } + } + if 200 <= code && code <= 299 { + return nil + } + return newError(code, reason) +} + +// BulkDeleteResult stores results of BulkDelete(). +// +// Individual errors may (or may not) be returned by Errors. +// Errors is a map whose keys are a full path of where the object was +// to be deleted, and whose values are Error objects. A full path of +// object looks like "/API_VERSION/USER_ACCOUNT/CONTAINER/OBJECT_PATH". +type BulkDeleteResult struct { + NumberNotFound int64 // # of objects not found. + NumberDeleted int64 // # of deleted objects. + Errors map[string]error // Mapping between object name and an error. + Headers Headers // Response HTTP headers. +} + +// BulkDelete deletes multiple objectNames from container in one operation. +// +// Some servers may not accept bulk-delete requests since bulk-delete is +// an optional feature of swift - these will return the Forbidden error. +// +// See also: +// * http://docs.openstack.org/trunk/openstack-object-storage/admin/content/object-storage-bulk-delete.html +// * http://docs.rackspace.com/files/api/v1/cf-devguide/content/Bulk_Delete-d1e2338.html +func (c *Connection) BulkDelete(container string, objectNames []string) (result BulkDeleteResult, err error) { + var buffer bytes.Buffer + for _, s := range objectNames { + buffer.WriteString(fmt.Sprintf("/%s/%s\n", container, + url.QueryEscape(s))) + } + resp, headers, err := c.storage(RequestOpts{ + Operation: "DELETE", + Parameters: url.Values{"bulk-delete": []string{"1"}}, + Headers: Headers{ + "Accept": "application/json", + "Content-Type": "text/plain", + }, + ErrorMap: ContainerErrorMap, + Body: &buffer, + }) + if err != nil { + return + } + var jsonResult struct { + NotFound int64 `json:"Number Not Found"` + Status string `json:"Response Status"` + Errors [][]string + Deleted int64 `json:"Number Deleted"` + } + err = readJson(resp, &jsonResult) + if err != nil { + return + } + + err = parseResponseStatus(jsonResult.Status, objectErrorMap) + result.NumberNotFound = jsonResult.NotFound + result.NumberDeleted = jsonResult.Deleted + result.Headers = headers + el := make(map[string]error, len(jsonResult.Errors)) + for _, t := range jsonResult.Errors { + if len(t) != 2 { + continue + } + el[t[0]] = parseResponseStatus(t[1], objectErrorMap) + } + result.Errors = el + return +} + +// BulkUploadResult stores results of BulkUpload(). +// +// Individual errors may (or may not) be returned by Errors. +// Errors is a map whose keys are a full path of where an object was +// to be created, and whose values are Error objects. A full path of +// object looks like "/API_VERSION/USER_ACCOUNT/CONTAINER/OBJECT_PATH". +type BulkUploadResult struct { + NumberCreated int64 // # of created objects. + Errors map[string]error // Mapping between object name and an error. + Headers Headers // Response HTTP headers. +} + +// BulkUpload uploads multiple files in one operation. +// +// uploadPath can be empty, a container name, or a pseudo-directory +// within a container. If uploadPath is empty, new containers may be +// automatically created. +// +// Files are read from dataStream. The format of the stream is specified +// by the format parameter. Available formats are: +// * UploadTar - Plain tar stream. +// * UploadTarGzip - Gzip compressed tar stream. +// * UploadTarBzip2 - Bzip2 compressed tar stream. +// +// Some servers may not accept bulk-upload requests since bulk-upload is +// an optional feature of swift - these will return the Forbidden error. +// +// See also: +// * http://docs.openstack.org/trunk/openstack-object-storage/admin/content/object-storage-extract-archive.html +// * http://docs.rackspace.com/files/api/v1/cf-devguide/content/Extract_Archive-d1e2338.html +func (c *Connection) BulkUpload(uploadPath string, dataStream io.Reader, format string, h Headers) (result BulkUploadResult, err error) { + extraHeaders := Headers{"Accept": "application/json"} + for key, value := range h { + extraHeaders[key] = value + } + // The following code abuses Container parameter intentionally. + // The best fix might be to rename Container to UploadPath. + resp, headers, err := c.storage(RequestOpts{ + Container: uploadPath, + Operation: "PUT", + Parameters: url.Values{"extract-archive": []string{format}}, + Headers: extraHeaders, + ErrorMap: ContainerErrorMap, + Body: dataStream, + }) + if err != nil { + return + } + // Detect old servers which don't support this feature + if headers["Content-Type"] != "application/json" { + err = Forbidden + return + } + var jsonResult struct { + Created int64 `json:"Number Files Created"` + Status string `json:"Response Status"` + Errors [][]string + } + err = readJson(resp, &jsonResult) + if err != nil { + return + } + + err = parseResponseStatus(jsonResult.Status, objectErrorMap) + result.NumberCreated = jsonResult.Created + result.Headers = headers + el := make(map[string]error, len(jsonResult.Errors)) + for _, t := range jsonResult.Errors { + if len(t) != 2 { + continue + } + el[t[0]] = parseResponseStatus(t[1], objectErrorMap) + } + result.Errors = el + return +} + +// Object returns info about a single object including any metadata in the header. +// +// May return ObjectNotFound. +// +// Use headers.ObjectMetadata() to read the metadata in the Headers. +func (c *Connection) Object(container string, objectName string) (info Object, headers Headers, err error) { + var resp *http.Response + resp, headers, err = c.storage(RequestOpts{ + Container: container, + ObjectName: objectName, + Operation: "HEAD", + ErrorMap: objectErrorMap, + NoResponse: true, + }) + if err != nil { + return + } + // Parse the headers into the struct + // HTTP/1.1 200 OK + // Date: Thu, 07 Jun 2010 20:59:39 GMT + // Server: Apache + // Last-Modified: Fri, 12 Jun 2010 13:40:18 GMT + // ETag: 8a964ee2a5e88be344f36c22562a6486 + // Content-Length: 512000 + // Content-Type: text/plain; charset=UTF-8 + // X-Object-Meta-Meat: Bacon + // X-Object-Meta-Fruit: Bacon + // X-Object-Meta-Veggie: Bacon + // X-Object-Meta-Dairy: Bacon + info.Name = objectName + info.ContentType = resp.Header.Get("Content-Type") + if resp.Header.Get("Content-Length") != "" { + if info.Bytes, err = getInt64FromHeader(resp, "Content-Length"); err != nil { + return + } + } + info.ServerLastModified = resp.Header.Get("Last-Modified") + if info.LastModified, err = time.Parse(http.TimeFormat, info.ServerLastModified); err != nil { + return + } + info.Hash = resp.Header.Get("Etag") + return +} + +// ObjectUpdate adds, replaces or removes object metadata. +// +// Add or Update keys by mentioning them in the Metadata. Use +// Metadata.ObjectHeaders and Headers.ObjectMetadata to convert your +// Metadata to and from normal HTTP headers. +// +// This removes all metadata previously added to the object and +// replaces it with that passed in so to delete keys, just don't +// mention them the headers you pass in. +// +// Object metadata can only be read with Object() not with Objects(). +// +// This can also be used to set headers not already assigned such as +// X-Delete-At or X-Delete-After for expiring objects. +// +// You cannot use this to change any of the object's other headers +// such as Content-Type, ETag, etc. +// +// Refer to copying an object when you need to update metadata or +// other headers such as Content-Type or CORS headers. +// +// May return ObjectNotFound. +func (c *Connection) ObjectUpdate(container string, objectName string, h Headers) error { + _, _, err := c.storage(RequestOpts{ + Container: container, + ObjectName: objectName, + Operation: "POST", + ErrorMap: objectErrorMap, + NoResponse: true, + Headers: h, + }) + return err +} + +// ObjectCopy does a server side copy of an object to a new position +// +// All metadata is preserved. If metadata is set in the headers then +// it overrides the old metadata on the copied object. +// +// The destination container must exist before the copy. +// +// You can use this to copy an object to itself - this is the only way +// to update the content type of an object. +func (c *Connection) ObjectCopy(srcContainer string, srcObjectName string, dstContainer string, dstObjectName string, h Headers) (headers Headers, err error) { + // Meta stuff + extraHeaders := map[string]string{ + "Destination": dstContainer + "/" + dstObjectName, + } + for key, value := range h { + extraHeaders[key] = value + } + _, headers, err = c.storage(RequestOpts{ + Container: srcContainer, + ObjectName: srcObjectName, + Operation: "COPY", + ErrorMap: objectErrorMap, + NoResponse: true, + Headers: extraHeaders, + }) + return +} + +// ObjectMove does a server side move of an object to a new position +// +// This is a convenience method which calls ObjectCopy then ObjectDelete +// +// All metadata is preserved. +// +// The destination container must exist before the copy. +func (c *Connection) ObjectMove(srcContainer string, srcObjectName string, dstContainer string, dstObjectName string) (err error) { + _, err = c.ObjectCopy(srcContainer, srcObjectName, dstContainer, dstObjectName, nil) + if err != nil { + return + } + return c.ObjectDelete(srcContainer, srcObjectName) +} + +// ObjectUpdateContentType updates the content type of an object +// +// This is a convenience method which calls ObjectCopy +// +// All other metadata is preserved. +func (c *Connection) ObjectUpdateContentType(container string, objectName string, contentType string) (err error) { + h := Headers{"Content-Type": contentType} + _, err = c.ObjectCopy(container, objectName, container, objectName, h) + return +} + +// ------------------------------------------------------------ + +// VersionContainerCreate is a helper method for creating and enabling version controlled containers. +// +// It builds the current object container, the non-current object version container, and enables versioning. +// +// If the server doesn't support versioning then it will return +// Forbidden however it will have created both the containers at that point. +func (c *Connection) VersionContainerCreate(current, version string) error { + if err := c.ContainerCreate(version, nil); err != nil { + return err + } + if err := c.ContainerCreate(current, nil); err != nil { + return err + } + if err := c.VersionEnable(current, version); err != nil { + return err + } + return nil +} + +// VersionEnable enables versioning on the current container with version as the tracking container. +// +// May return Forbidden if this isn't supported by the server +func (c *Connection) VersionEnable(current, version string) error { + h := Headers{"X-Versions-Location": version} + if err := c.ContainerUpdate(current, h); err != nil { + return err + } + // Check to see if the header was set properly + _, headers, err := c.Container(current) + if err != nil { + return err + } + // If failed to set versions header, return Forbidden as the server doesn't support this + if headers["X-Versions-Location"] != version { + return Forbidden + } + return nil +} + +// VersionDisable disables versioning on the current container. +func (c *Connection) VersionDisable(current string) error { + h := Headers{"X-Versions-Location": ""} + if err := c.ContainerUpdate(current, h); err != nil { + return err + } + return nil +} + +// VersionObjectList returns a list of older versions of the object. +// +// Objects are returned in the format / +func (c *Connection) VersionObjectList(version, object string) ([]string, error) { + opts := &ObjectsOpts{ + // <3-character zero-padded hexadecimal character length>/ + Prefix: fmt.Sprintf("%03x", len(object)) + object + "/", + } + return c.ObjectNames(version, opts) +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/swift_internal_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/swift_internal_test.go new file mode 100644 index 00000000..e8b1f437 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/swift_internal_test.go @@ -0,0 +1,409 @@ +// This tests the swift package internals +// +// It does not require access to a swift server +// +// FIXME need to add more tests and to check URLs and parameters +package swift + +import ( + "fmt" + "io" + "net" + "net/http" + "testing" + + // "net/http/httputil" + // "os" +) + +const ( + TEST_ADDRESS = "localhost:5324" + AUTH_URL = "http://" + TEST_ADDRESS + "/v1.0" + PROXY_URL = "http://" + TEST_ADDRESS + "/proxy" + USERNAME = "test" + APIKEY = "apikey" + AUTH_TOKEN = "token" +) + +// Globals +var ( + server *SwiftServer + c *Connection +) + +// SwiftServer implements a test swift server +type SwiftServer struct { + t *testing.T + checks []*Check +} + +// Used to check and reply to http transactions +type Check struct { + in Headers + out Headers + rx *string + tx *string + err *Error + url *string +} + +// Add a in check +func (check *Check) In(in Headers) *Check { + check.in = in + return check +} + +// Add an out check +func (check *Check) Out(out Headers) *Check { + check.out = out + return check +} + +// Add an Error check +func (check *Check) Error(StatusCode int, Text string) *Check { + check.err = newError(StatusCode, Text) + return check +} + +// Add a rx check +func (check *Check) Rx(rx string) *Check { + check.rx = &rx + return check +} + +// Add an tx check +func (check *Check) Tx(tx string) *Check { + check.tx = &tx + return check +} + +// Add an URL check +func (check *Check) Url(url string) *Check { + check.url = &url + return check +} + +// Add a check +func (s *SwiftServer) AddCheck(t *testing.T) *Check { + server.t = t + check := &Check{ + in: Headers{}, + out: Headers{}, + err: nil, + } + s.checks = append(s.checks, check) + return check +} + +// Responds to a request +func (s *SwiftServer) Respond(w http.ResponseWriter, r *http.Request) { + if len(s.checks) < 1 { + s.t.Fatal("Unexpected http transaction") + } + check := s.checks[0] + s.checks = s.checks[1:] + + // Check URL + if check.url != nil && *check.url != r.URL.String() { + s.t.Errorf("Expecting URL %q but got %q", *check.url, r.URL) + } + + // Check headers + for k, v := range check.in { + actual := r.Header.Get(k) + if actual != v { + s.t.Errorf("Expecting header %q=%q but got %q", k, v, actual) + } + } + // Write output headers + h := w.Header() + for k, v := range check.out { + h.Set(k, v) + } + // Return an error if required + if check.err != nil { + http.Error(w, check.err.Text, check.err.StatusCode) + } else { + if check.tx != nil { + _, err := w.Write([]byte(*check.tx)) + if err != nil { + s.t.Error("Write failed", err) + } + } + } +} + +// Checks to see all responses are used up +func (s *SwiftServer) Finished() { + if len(s.checks) > 0 { + s.t.Error("Unused checks", s.checks) + } +} + +func handle(w http.ResponseWriter, r *http.Request) { + // out, _ := httputil.DumpRequest(r, true) + // os.Stdout.Write(out) + server.Respond(w, r) +} + +func NewSwiftServer() *SwiftServer { + server := &SwiftServer{} + http.HandleFunc("/", handle) + go http.ListenAndServe(TEST_ADDRESS, nil) + fmt.Print("Waiting for server to start ") + for { + fmt.Print(".") + conn, err := net.Dial("tcp", TEST_ADDRESS) + if err == nil { + conn.Close() + fmt.Println(" Started") + break + } + } + return server +} + +func init() { + server = NewSwiftServer() + c = &Connection{ + UserName: USERNAME, + ApiKey: APIKEY, + AuthUrl: AUTH_URL, + } +} + +// Check the error is a swift error +func checkError(t *testing.T, err error, StatusCode int, Text string) { + if err == nil { + t.Fatal("No error returned") + } + err2, ok := err.(*Error) + if !ok { + t.Fatal("Bad error type") + } + if err2.StatusCode != StatusCode { + t.Fatalf("Bad status code, expecting %d got %d", StatusCode, err2.StatusCode) + } + if err2.Text != Text { + t.Fatalf("Bad error string, expecting %q got %q", Text, err2.Text) + } +} + +// FIXME copied from swift_test.go +func compareMaps(t *testing.T, a, b map[string]string) { + if len(a) != len(b) { + t.Error("Maps different sizes", a, b) + } + for ka, va := range a { + if vb, ok := b[ka]; !ok || va != vb { + t.Error("Difference in key", ka, va, b[ka]) + } + } + for kb, vb := range b { + if va, ok := a[kb]; !ok || vb != va { + t.Error("Difference in key", kb, vb, a[kb]) + } + } +} + +func TestInternalError(t *testing.T) { + e := newError(404, "Not Found!") + if e.StatusCode != 404 || e.Text != "Not Found!" { + t.Fatal("Bad error") + } + if e.Error() != "Not Found!" { + t.Fatal("Bad error") + } + +} + +func testCheckClose(c io.Closer, e error) (err error) { + err = e + defer checkClose(c, &err) + return +} + +// Make a closer which returns the error of our choice +type myCloser struct { + err error +} + +func (c *myCloser) Close() error { + return c.err +} + +func TestInternalCheckClose(t *testing.T) { + if testCheckClose(&myCloser{nil}, nil) != nil { + t.Fatal("bad 1") + } + if testCheckClose(&myCloser{nil}, ObjectCorrupted) != ObjectCorrupted { + t.Fatal("bad 2") + } + if testCheckClose(&myCloser{ObjectNotFound}, nil) != ObjectNotFound { + t.Fatal("bad 3") + } + if testCheckClose(&myCloser{ObjectNotFound}, ObjectCorrupted) != ObjectCorrupted { + t.Fatal("bad 4") + } +} + +func TestInternalParseHeaders(t *testing.T) { + resp := &http.Response{StatusCode: 200} + if c.parseHeaders(resp, nil) != nil { + t.Error("Bad 1") + } + if c.parseHeaders(resp, authErrorMap) != nil { + t.Error("Bad 1") + } + + resp = &http.Response{StatusCode: 299} + if c.parseHeaders(resp, nil) != nil { + t.Error("Bad 1") + } + + resp = &http.Response{StatusCode: 199, Status: "BOOM"} + checkError(t, c.parseHeaders(resp, nil), 199, "HTTP Error: 199: BOOM") + + resp = &http.Response{StatusCode: 300, Status: "BOOM"} + checkError(t, c.parseHeaders(resp, nil), 300, "HTTP Error: 300: BOOM") + + resp = &http.Response{StatusCode: 404, Status: "BOOM"} + checkError(t, c.parseHeaders(resp, nil), 404, "HTTP Error: 404: BOOM") + if c.parseHeaders(resp, ContainerErrorMap) != ContainerNotFound { + t.Error("Bad 1") + } + if c.parseHeaders(resp, objectErrorMap) != ObjectNotFound { + t.Error("Bad 1") + } +} + +func TestInternalReadHeaders(t *testing.T) { + resp := &http.Response{Header: http.Header{}} + compareMaps(t, readHeaders(resp), Headers{}) + + resp = &http.Response{Header: http.Header{ + "one": []string{"1"}, + "two": []string{"2"}, + }} + compareMaps(t, readHeaders(resp), Headers{"one": "1", "two": "2"}) + + // FIXME this outputs a log which we should test and check + resp = &http.Response{Header: http.Header{ + "one": []string{"1", "11", "111"}, + "two": []string{"2"}, + }} + compareMaps(t, readHeaders(resp), Headers{"one": "1", "two": "2"}) +} + +func TestInternalStorage(t *testing.T) { + // FIXME +} + +// ------------------------------------------------------------ + +func TestInternalAuthenticate(t *testing.T) { + server.AddCheck(t).In(Headers{ + "User-Agent": DefaultUserAgent, + "X-Auth-Key": APIKEY, + "X-Auth-User": USERNAME, + }).Out(Headers{ + "X-Storage-Url": PROXY_URL, + "X-Auth-Token": AUTH_TOKEN, + }).Url("/v1.0") + defer server.Finished() + + err := c.Authenticate() + if err != nil { + t.Fatal(err) + } + if c.StorageUrl != PROXY_URL { + t.Error("Bad storage url") + } + if c.AuthToken != AUTH_TOKEN { + t.Error("Bad auth token") + } + if !c.Authenticated() { + t.Error("Didn't authenticate") + } +} + +func TestInternalAuthenticateDenied(t *testing.T) { + server.AddCheck(t).Error(400, "Bad request") + server.AddCheck(t).Error(401, "DENIED") + defer server.Finished() + c.UnAuthenticate() + err := c.Authenticate() + if err != AuthorizationFailed { + t.Fatal("Expecting AuthorizationFailed", err) + } + // FIXME + // if c.Authenticated() { + // t.Fatal("Expecting not authenticated") + // } +} + +func TestInternalAuthenticateBad(t *testing.T) { + server.AddCheck(t).Out(Headers{ + "X-Storage-Url": PROXY_URL, + }) + defer server.Finished() + err := c.Authenticate() + checkError(t, err, 0, "Response didn't have storage url and auth token") + if c.Authenticated() { + t.Fatal("Expecting not authenticated") + } + + server.AddCheck(t).Out(Headers{ + "X-Auth-Token": AUTH_TOKEN, + }) + err = c.Authenticate() + checkError(t, err, 0, "Response didn't have storage url and auth token") + if c.Authenticated() { + t.Fatal("Expecting not authenticated") + } + + server.AddCheck(t) + err = c.Authenticate() + checkError(t, err, 0, "Response didn't have storage url and auth token") + if c.Authenticated() { + t.Fatal("Expecting not authenticated") + } + + server.AddCheck(t).Out(Headers{ + "X-Storage-Url": PROXY_URL, + "X-Auth-Token": AUTH_TOKEN, + }) + err = c.Authenticate() + if err != nil { + t.Fatal(err) + } + if !c.Authenticated() { + t.Fatal("Expecting authenticated") + } +} + +func testContainerNames(t *testing.T, rx string, expected []string) { + server.AddCheck(t).In(Headers{ + "User-Agent": DefaultUserAgent, + "X-Auth-Token": AUTH_TOKEN, + }).Tx(rx).Url("/proxy") + containers, err := c.ContainerNames(nil) + if err != nil { + t.Fatal(err) + } + if len(containers) != len(expected) { + t.Fatal("Wrong number of containers", len(containers), rx, len(expected), expected) + } + for i := range containers { + if containers[i] != expected[i] { + t.Error("Bad container", containers[i], expected[i]) + } + } +} +func TestInternalContainerNames(t *testing.T) { + defer server.Finished() + testContainerNames(t, "", []string{}) + testContainerNames(t, "one", []string{"one"}) + testContainerNames(t, "one\n", []string{"one"}) + testContainerNames(t, "one\ntwo\nthree\n", []string{"one", "two", "three"}) +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/swift_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/swift_test.go new file mode 100644 index 00000000..0dc8a4af --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/swift_test.go @@ -0,0 +1,1311 @@ +// This tests the swift packagae +// +// It can be used with a real swift server which should be set up in +// the environment variables SWIFT_API_USER, SWIFT_API_KEY and +// SWIFT_AUTH_URL +// In case those variables are not defined, a fake Swift server +// is used instead - see Testing in README.md for more info +// +// The functions are designed to run in order and create things the +// next function tests. This means that if it goes wrong it is likely +// errors will propagate. You may need to tidy up the CONTAINER to +// get it to run cleanly. +package swift_test + +import ( + "archive/tar" + "bytes" + "crypto/md5" + "encoding/json" + "encoding/xml" + "fmt" + "io" + "net/http" + "os" + "sync" + "testing" + "time" + + "github.com/ncw/swift" + "github.com/ncw/swift/swifttest" +) + +var ( + c swift.Connection + srv *swifttest.SwiftServer + m1 = swift.Metadata{"Hello": "1", "potato-Salad": "2"} + m2 = swift.Metadata{"hello": "", "potato-salad": ""} + skipVersionTests = false +) + +const ( + CONTAINER = "GoSwiftUnitTest" + VERSIONS_CONTAINER = "GoSwiftUnitTestVersions" + CURRENT_CONTAINER = "GoSwiftUnitTestCurrent" + OBJECT = "test_object" + OBJECT2 = "test_object2" + EMPTYOBJECT = "empty_test_object" + CONTENTS = "12345" + CONTENTS2 = "54321" + CONTENT_SIZE = int64(len(CONTENTS)) + CONTENT_MD5 = "827ccb0eea8a706c4c34a16891f84e7b" + EMPTY_MD5 = "d41d8cd98f00b204e9800998ecf8427e" +) + +type someTransport struct{ http.Transport } + +func TestTransport(t *testing.T) { + var err error + UserName := os.Getenv("SWIFT_API_USER") + ApiKey := os.Getenv("SWIFT_API_KEY") + AuthUrl := os.Getenv("SWIFT_AUTH_URL") + if UserName == "" || ApiKey == "" || AuthUrl == "" { + srv, err = swifttest.NewSwiftServer("localhost") + if err != nil { + t.Fatal("Failed to create server", err) + } + UserName = "swifttest" + ApiKey = "swifttest" + AuthUrl = srv.AuthURL + } + tr := &someTransport{Transport: http.Transport{MaxIdleConnsPerHost: 2048}} + ct := swift.Connection{ + UserName: UserName, + ApiKey: ApiKey, + AuthUrl: AuthUrl, + Tenant: os.Getenv("SWIFT_TENANT"), + TenantId: os.Getenv("SWIFT_TENANT_ID"), + Transport: tr, + ConnectTimeout: 60 * time.Second, + Timeout: 60 * time.Second, + } + err = ct.Authenticate() + if err != nil { + t.Fatal("Auth failed", err) + } + if !ct.Authenticated() { + t.Fatal("Not authenticated") + } + if srv != nil { + srv.Close() + } +} + +// The following Test functions are run in order - this one must come before the others! +func TestAuthenticate(t *testing.T) { + var err error + UserName := os.Getenv("SWIFT_API_USER") + ApiKey := os.Getenv("SWIFT_API_KEY") + AuthUrl := os.Getenv("SWIFT_AUTH_URL") + if UserName == "" || ApiKey == "" || AuthUrl == "" { + srv, err = swifttest.NewSwiftServer("localhost") + if err != nil { + t.Fatal("Failed to create server", err) + } + UserName = "swifttest" + ApiKey = "swifttest" + AuthUrl = srv.AuthURL + } + c = swift.Connection{ + UserName: UserName, + ApiKey: ApiKey, + AuthUrl: AuthUrl, + Tenant: os.Getenv("SWIFT_TENANT"), + TenantId: os.Getenv("SWIFT_TENANT_ID"), + } + err = c.Authenticate() + if err != nil { + t.Fatal("Auth failed", err) + } + if !c.Authenticated() { + t.Fatal("Not authenticated") + } +} + +// Attempt to trigger a race in authenticate +// +// Run with -race to test +func TestAuthenticateRace(t *testing.T) { + var wg sync.WaitGroup + for i := 0; i < 10; i++ { + wg.Add(1) + go func() { + defer wg.Done() + err := c.Authenticate() + if err != nil { + t.Fatal("Auth failed", err) + } + if !c.Authenticated() { + t.Fatal("Not authenticated") + } + }() + } + wg.Wait() +} + +// Test a connection can be serialized and unserialized with JSON +func TestSerializeConnectionJson(t *testing.T) { + serializedConnection, err := json.Marshal(c) + if err != nil { + t.Fatalf("Failed to serialize connection: %v", err) + } + c2 := new(swift.Connection) + err = json.Unmarshal(serializedConnection, &c2) + if err != nil { + t.Fatalf("Failed to unserialize connection: %v", err) + } + if !c2.Authenticated() { + t.Fatal("Should be authenticated") + } + _, _, err = c2.Account() + if err != nil { + t.Fatalf("Failed to use unserialized connection: %v", err) + } +} + +// Test a connection can be serialized and unserialized with XML +func TestSerializeConnectionXml(t *testing.T) { + serializedConnection, err := xml.Marshal(c) + if err != nil { + t.Fatalf("Failed to serialize connection: %v", err) + } + c2 := new(swift.Connection) + err = xml.Unmarshal(serializedConnection, &c2) + if err != nil { + t.Fatalf("Failed to unserialize connection: %v", err) + } + if !c2.Authenticated() { + t.Fatal("Should be authenticated") + } + _, _, err = c2.Account() + if err != nil { + t.Fatalf("Failed to use unserialized connection: %v", err) + } +} + +// Test the reauthentication logic +func TestOnReAuth(t *testing.T) { + c2 := c + c2.UnAuthenticate() + _, _, err := c2.Account() + if err != nil { + t.Fatalf("Failed to reauthenticate: %v", err) + } +} +func TestAccount(t *testing.T) { + info, headers, err := c.Account() + if err != nil { + t.Fatal(err) + } + if headers["X-Account-Container-Count"] != fmt.Sprintf("%d", info.Containers) { + t.Error("Bad container count") + } + if headers["X-Account-Bytes-Used"] != fmt.Sprintf("%d", info.BytesUsed) { + t.Error("Bad bytes count") + } + if headers["X-Account-Object-Count"] != fmt.Sprintf("%d", info.Objects) { + t.Error("Bad objects count") + } + //fmt.Println(info) + //fmt.Println(headers) +} + +func compareMaps(t *testing.T, a, b map[string]string) { + if len(a) != len(b) { + t.Error("Maps different sizes", a, b) + } + for ka, va := range a { + if vb, ok := b[ka]; !ok || va != vb { + t.Error("Difference in key", ka, va, b[ka]) + } + } + for kb, vb := range b { + if va, ok := a[kb]; !ok || vb != va { + t.Error("Difference in key", kb, vb, a[kb]) + } + } +} + +func TestAccountUpdate(t *testing.T) { + err := c.AccountUpdate(m1.AccountHeaders()) + if err != nil { + t.Fatal(err) + } + + _, headers, err := c.Account() + if err != nil { + t.Fatal(err) + } + m := headers.AccountMetadata() + delete(m, "temp-url-key") // remove X-Account-Meta-Temp-URL-Key if set + compareMaps(t, m, map[string]string{"hello": "1", "potato-salad": "2"}) + + err = c.AccountUpdate(m2.AccountHeaders()) + if err != nil { + t.Fatal(err) + } + + _, headers, err = c.Account() + if err != nil { + t.Fatal(err) + } + m = headers.AccountMetadata() + delete(m, "temp-url-key") // remove X-Account-Meta-Temp-URL-Key if set + compareMaps(t, m, map[string]string{}) + + //fmt.Println(c.Account()) + //fmt.Println(headers) + //fmt.Println(headers.AccountMetadata()) + //fmt.Println(c.AccountUpdate(m2.AccountHeaders())) + //fmt.Println(c.Account()) +} + +func TestContainerCreate(t *testing.T) { + err := c.ContainerCreate(CONTAINER, m1.ContainerHeaders()) + if err != nil { + t.Fatal(err) + } +} + +func TestContainer(t *testing.T) { + info, headers, err := c.Container(CONTAINER) + if err != nil { + t.Fatal(err) + } + compareMaps(t, headers.ContainerMetadata(), map[string]string{"hello": "1", "potato-salad": "2"}) + if CONTAINER != info.Name { + t.Error("Bad container count") + } + if headers["X-Container-Bytes-Used"] != fmt.Sprintf("%d", info.Bytes) { + t.Error("Bad bytes count") + } + if headers["X-Container-Object-Count"] != fmt.Sprintf("%d", info.Count) { + t.Error("Bad objects count") + } + //fmt.Println(info) + //fmt.Println(headers) +} + +func TestContainersAll(t *testing.T) { + containers1, err := c.ContainersAll(nil) + if err != nil { + t.Fatal(err) + } + containers2, err := c.Containers(nil) + if err != nil { + t.Fatal(err) + } + if len(containers1) != len(containers2) { + t.Fatal("Wrong length") + } + for i := range containers1 { + if containers1[i] != containers2[i] { + t.Fatal("Not the same") + } + } +} + +func TestContainersAllWithLimit(t *testing.T) { + containers1, err := c.ContainersAll(&swift.ContainersOpts{Limit: 1}) + if err != nil { + t.Fatal(err) + } + containers2, err := c.Containers(nil) + if err != nil { + t.Fatal(err) + } + if len(containers1) != len(containers2) { + t.Fatal("Wrong length") + } + for i := range containers1 { + if containers1[i] != containers2[i] { + t.Fatal("Not the same") + } + } +} + +func TestContainerUpdate(t *testing.T) { + err := c.ContainerUpdate(CONTAINER, m2.ContainerHeaders()) + if err != nil { + t.Fatal(err) + } + _, headers, err := c.Container(CONTAINER) + if err != nil { + t.Fatal(err) + } + compareMaps(t, headers.ContainerMetadata(), map[string]string{}) + //fmt.Println(headers) +} + +func TestContainerNames(t *testing.T) { + containers, err := c.ContainerNames(nil) + if err != nil { + t.Fatal(err) + } + // fmt.Printf("container %q\n", CONTAINER) + ok := false + for _, container := range containers { + if container == CONTAINER { + ok = true + break + } + } + if !ok { + t.Errorf("Didn't find container %q in listing %q", CONTAINER, containers) + } + // fmt.Println(containers) +} + +func TestContainerNamesAll(t *testing.T) { + containers1, err := c.ContainerNamesAll(nil) + if err != nil { + t.Fatal(err) + } + containers2, err := c.ContainerNames(nil) + if err != nil { + t.Fatal(err) + } + if len(containers1) != len(containers2) { + t.Fatal("Wrong length") + } + for i := range containers1 { + if containers1[i] != containers2[i] { + t.Fatal("Not the same") + } + } +} + +func TestContainerNamesAllWithLimit(t *testing.T) { + containers1, err := c.ContainerNamesAll(&swift.ContainersOpts{Limit: 1}) + if err != nil { + t.Fatal(err) + } + containers2, err := c.ContainerNames(nil) + if err != nil { + t.Fatal(err) + } + if len(containers1) != len(containers2) { + t.Fatal("Wrong length") + } + for i := range containers1 { + if containers1[i] != containers2[i] { + t.Fatal("Not the same") + } + } +} + +func TestObjectPutString(t *testing.T) { + err := c.ObjectPutString(CONTAINER, OBJECT, CONTENTS, "") + if err != nil { + t.Fatal(err) + } + + info, _, err := c.Object(CONTAINER, OBJECT) + if err != nil { + t.Error(err) + } + if info.ContentType != "application/octet-stream" { + t.Error("Bad content type", info.ContentType) + } + if info.Bytes != CONTENT_SIZE { + t.Error("Bad length") + } + if info.Hash != CONTENT_MD5 { + t.Error("Bad length") + } +} + +func TestObjectEmpty(t *testing.T) { + err := c.ObjectPutString(CONTAINER, EMPTYOBJECT, "", "") + if err != nil { + t.Fatal(err) + } + + info, _, err := c.Object(CONTAINER, EMPTYOBJECT) + if err != nil { + t.Error(err) + } + if info.ContentType != "application/octet-stream" { + t.Error("Bad content type", info.ContentType) + } + if info.Bytes != 0 { + t.Errorf("Bad length want 0 got %v", info.Bytes) + } + if info.Hash != EMPTY_MD5 { + t.Errorf("Bad MD5 want %v got %v", EMPTY_MD5, info.Hash) + } + + // Tidy up + err = c.ObjectDelete(CONTAINER, EMPTYOBJECT) + if err != nil { + t.Error(err) + } +} + +func TestObjectPutBytes(t *testing.T) { + err := c.ObjectPutBytes(CONTAINER, OBJECT, []byte(CONTENTS), "") + if err != nil { + t.Fatal(err) + } + + info, _, err := c.Object(CONTAINER, OBJECT) + if err != nil { + t.Error(err) + } + if info.ContentType != "application/octet-stream" { + t.Error("Bad content type", info.ContentType) + } + if info.Bytes != CONTENT_SIZE { + t.Error("Bad length") + } + if info.Hash != CONTENT_MD5 { + t.Error("Bad length") + } +} + +func TestObjectPutMimeType(t *testing.T) { + err := c.ObjectPutString(CONTAINER, "test.jpg", CONTENTS, "") + if err != nil { + t.Fatal(err) + } + + info, _, err := c.Object(CONTAINER, "test.jpg") + if err != nil { + t.Error(err) + } + if info.ContentType != "image/jpeg" { + t.Error("Bad content type", info.ContentType) + } + + // Tidy up + err = c.ObjectDelete(CONTAINER, "test.jpg") + if err != nil { + t.Error(err) + } +} + +func TestObjectCreate(t *testing.T) { + out, err := c.ObjectCreate(CONTAINER, OBJECT2, true, "", "", nil) + if err != nil { + t.Fatal(err) + } + buf := &bytes.Buffer{} + hash := md5.New() + out2 := io.MultiWriter(out, buf, hash) + for i := 0; i < 100; i++ { + fmt.Fprintf(out2, "%d %s\n", i, CONTENTS) + } + err = out.Close() + if err != nil { + t.Error(err) + } + expected := buf.String() + contents, err := c.ObjectGetString(CONTAINER, OBJECT2) + if err != nil { + t.Error(err) + } + if contents != expected { + t.Error("Contents wrong") + } + + // Test writing on closed file + n, err := out.Write([]byte{0}) + if err == nil || n != 0 { + t.Error("Expecting error and n == 0 writing on closed file", err, n) + } + + // Now with hash instead + out, err = c.ObjectCreate(CONTAINER, OBJECT2, false, fmt.Sprintf("%x", hash.Sum(nil)), "", nil) + if err != nil { + t.Fatal(err) + } + _, err = out.Write(buf.Bytes()) + if err != nil { + t.Error(err) + } + err = out.Close() + if err != nil { + t.Error(err) + } + contents, err = c.ObjectGetString(CONTAINER, OBJECT2) + if err != nil { + t.Error(err) + } + if contents != expected { + t.Error("Contents wrong") + } + + // Now with bad hash + out, err = c.ObjectCreate(CONTAINER, OBJECT2, false, CONTENT_MD5, "", nil) + if err != nil { + t.Fatal(err) + } + // FIXME: work around bug which produces 503 not 422 for empty corrupted files + fmt.Fprintf(out, "Sausage") + err = out.Close() + if err != swift.ObjectCorrupted { + t.Error("Expecting object corrupted not", err) + } + + // Tidy up + err = c.ObjectDelete(CONTAINER, OBJECT2) + if err != nil { + t.Error(err) + } +} + +func TestObjectGetString(t *testing.T) { + contents, err := c.ObjectGetString(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + if contents != CONTENTS { + t.Error("Contents wrong") + } + //fmt.Println(contents) +} + +func TestObjectGetBytes(t *testing.T) { + contents, err := c.ObjectGetBytes(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + if string(contents) != CONTENTS { + t.Error("Contents wrong") + } + //fmt.Println(contents) +} + +func TestObjectOpen(t *testing.T) { + file, _, err := c.ObjectOpen(CONTAINER, OBJECT, true, nil) + if err != nil { + t.Fatal(err) + } + var buf bytes.Buffer + n, err := io.Copy(&buf, file) + if err != nil { + t.Fatal(err) + } + if n != CONTENT_SIZE { + t.Fatal("Wrong length", n, CONTENT_SIZE) + } + if buf.String() != CONTENTS { + t.Error("Contents wrong") + } + err = file.Close() + if err != nil { + t.Fatal(err) + } +} + +func TestObjectOpenPartial(t *testing.T) { + file, _, err := c.ObjectOpen(CONTAINER, OBJECT, true, nil) + if err != nil { + t.Fatal(err) + } + var buf bytes.Buffer + n, err := io.CopyN(&buf, file, 1) + if err != nil { + t.Fatal(err) + } + if n != 1 { + t.Fatal("Wrong length", n, CONTENT_SIZE) + } + if buf.String() != CONTENTS[:1] { + t.Error("Contents wrong") + } + err = file.Close() + if err != nil { + t.Fatal(err) + } +} + +func TestObjectOpenLength(t *testing.T) { + file, _, err := c.ObjectOpen(CONTAINER, OBJECT, true, nil) + if err != nil { + t.Fatal(err) + } + // FIXME ideally this would check both branches of the Length() code + n, err := file.Length() + if err != nil { + t.Fatal(err) + } + if n != CONTENT_SIZE { + t.Fatal("Wrong length", n, CONTENT_SIZE) + } + err = file.Close() + if err != nil { + t.Fatal(err) + } +} + +func TestObjectOpenSeek(t *testing.T) { + + plan := []struct { + whence int + offset int64 + result int64 + }{ + {-1, 0, 0}, + {-1, 0, 1}, + {-1, 0, 2}, + {0, 0, 0}, + {0, 0, 0}, + {0, 1, 1}, + {0, 2, 2}, + {1, 0, 3}, + {1, -2, 2}, + {1, 1, 4}, + {2, -1, 4}, + {2, -3, 2}, + {2, -2, 3}, + {2, -5, 0}, + {2, -4, 1}, + } + + file, _, err := c.ObjectOpen(CONTAINER, OBJECT, true, nil) + if err != nil { + t.Fatal(err) + } + + for _, p := range plan { + if p.whence >= 0 { + result, err := file.Seek(p.offset, p.whence) + if err != nil { + t.Fatal(err, p) + } + if result != p.result { + t.Fatal("Seek result was", result, "expecting", p.result, p) + } + + } + var buf bytes.Buffer + n, err := io.CopyN(&buf, file, 1) + if err != nil { + t.Fatal(err, p) + } + if n != 1 { + t.Fatal("Wrong length", n, p) + } + actual := buf.String() + expected := CONTENTS[p.result : p.result+1] + if actual != expected { + t.Error("Contents wrong, expecting", expected, "got", actual, p) + } + } + + err = file.Close() + if err != nil { + t.Fatal(err) + } +} + +func TestObjectUpdate(t *testing.T) { + err := c.ObjectUpdate(CONTAINER, OBJECT, m1.ObjectHeaders()) + if err != nil { + t.Fatal(err) + } +} + +func checkTime(t *testing.T, when time.Time, low, high int) { + dt := time.Now().Sub(when) + if dt < time.Duration(low)*time.Second || dt > time.Duration(high)*time.Second { + t.Errorf("Time is wrong: dt=%q, when=%q", dt, when) + } +} + +func TestObject(t *testing.T) { + object, headers, err := c.Object(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + compareMaps(t, headers.ObjectMetadata(), map[string]string{"hello": "1", "potato-salad": "2"}) + if object.Name != OBJECT || object.Bytes != CONTENT_SIZE || object.ContentType != "application/octet-stream" || object.Hash != CONTENT_MD5 || object.PseudoDirectory != false || object.SubDir != "" { + t.Error("Bad object info", object) + } + checkTime(t, object.LastModified, -10, 10) +} + +func TestObjectUpdate2(t *testing.T) { + err := c.ObjectUpdate(CONTAINER, OBJECT, m2.ObjectHeaders()) + if err != nil { + t.Fatal(err) + } + _, headers, err := c.Object(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + //fmt.Println(headers, headers.ObjectMetadata()) + compareMaps(t, headers.ObjectMetadata(), map[string]string{"hello": "", "potato-salad": ""}) +} + +func TestContainers(t *testing.T) { + containers, err := c.Containers(nil) + if err != nil { + t.Fatal(err) + } + ok := false + for _, container := range containers { + if container.Name == CONTAINER { + ok = true + // Container may or may not have the file contents in it + // Swift updates may be behind + if container.Count == 0 && container.Bytes == 0 { + break + } + if container.Count == 1 && container.Bytes == CONTENT_SIZE { + break + } + t.Errorf("Bad size of Container %q: %q", CONTAINER, container) + break + } + } + if !ok { + t.Errorf("Didn't find container %q in listing %q", CONTAINER, containers) + } + //fmt.Println(containers) +} + +func TestObjectNames(t *testing.T) { + objects, err := c.ObjectNames(CONTAINER, nil) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0] != OBJECT { + t.Error("Incorrect listing", objects) + } + //fmt.Println(objects) +} + +func TestObjectNamesAll(t *testing.T) { + objects, err := c.ObjectNamesAll(CONTAINER, nil) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0] != OBJECT { + t.Error("Incorrect listing", objects) + } + //fmt.Println(objects) +} + +func TestObjectNamesAllWithLimit(t *testing.T) { + objects, err := c.ObjectNamesAll(CONTAINER, &swift.ObjectsOpts{Limit: 1}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0] != OBJECT { + t.Error("Incorrect listing", objects) + } + //fmt.Println(objects) +} + +func TestObjectsWalk(t *testing.T) { + objects := make([]string, 0) + err := c.ObjectsWalk(container, nil, func(opts *swift.ObjectsOpts) (interface{}, error) { + newObjects, err := c.ObjectNames(CONTAINER, opts) + if err == nil { + objects = append(objects, newObjects...) + } + return newObjects, err + }) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0] != OBJECT { + t.Error("Incorrect listing", objects) + } + //fmt.Println(objects) +} + +func TestObjects(t *testing.T) { + objects, err := c.Objects(CONTAINER, &swift.ObjectsOpts{Delimiter: '/'}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 { + t.Fatal("Should only be 1 object") + } + object := objects[0] + if object.Name != OBJECT || object.Bytes != CONTENT_SIZE || object.ContentType != "application/octet-stream" || object.Hash != CONTENT_MD5 || object.PseudoDirectory != false || object.SubDir != "" { + t.Error("Bad object info", object) + } + checkTime(t, object.LastModified, -10, 10) + // fmt.Println(objects) +} + +func TestObjectsDirectory(t *testing.T) { + err := c.ObjectPutString(CONTAINER, "directory", "", "application/directory") + if err != nil { + t.Fatal(err) + } + defer c.ObjectDelete(CONTAINER, "directory") + + // Look for the directory object and check we aren't confusing + // it with a pseudo directory object + objects, err := c.Objects(CONTAINER, &swift.ObjectsOpts{Delimiter: '/'}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 2 { + t.Fatal("Should only be 2 objects") + } + found := false + for i := range objects { + object := objects[i] + if object.Name == "directory" { + found = true + if object.Bytes != 0 || object.ContentType != "application/directory" || object.Hash != "d41d8cd98f00b204e9800998ecf8427e" || object.PseudoDirectory != false || object.SubDir != "" { + t.Error("Bad object info", object) + } + checkTime(t, object.LastModified, -10, 10) + } + } + if !found { + t.Error("Didn't find directory object") + } + // fmt.Println(objects) +} + +func TestObjectsPseudoDirectory(t *testing.T) { + err := c.ObjectPutString(CONTAINER, "directory/puppy.jpg", "cute puppy", "") + if err != nil { + t.Fatal(err) + } + defer c.ObjectDelete(CONTAINER, "directory/puppy.jpg") + + // Look for the pseudo directory + objects, err := c.Objects(CONTAINER, &swift.ObjectsOpts{Delimiter: '/'}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 2 { + t.Fatal("Should only be 2 objects", objects) + } + found := false + for i := range objects { + object := objects[i] + if object.Name == "directory/" { + found = true + if object.Bytes != 0 || object.ContentType != "application/directory" || object.Hash != "" || object.PseudoDirectory != true || object.SubDir != "directory/" && object.LastModified.IsZero() { + t.Error("Bad object info", object) + } + } + } + if !found { + t.Error("Didn't find directory object", objects) + } + + // Look in the pseudo directory now + objects, err = c.Objects(CONTAINER, &swift.ObjectsOpts{Delimiter: '/', Path: "directory/"}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 { + t.Fatal("Should only be 1 object", objects) + } + object := objects[0] + if object.Name != "directory/puppy.jpg" || object.Bytes != 10 || object.ContentType != "image/jpeg" || object.Hash != "87a12ea22fca7f54f0cefef1da535489" || object.PseudoDirectory != false || object.SubDir != "" { + t.Error("Bad object info", object) + } + checkTime(t, object.LastModified, -10, 10) + // fmt.Println(objects) +} + +func TestObjectsAll(t *testing.T) { + objects, err := c.ObjectsAll(CONTAINER, nil) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0].Name != OBJECT { + t.Error("Incorrect listing", objects) + } + //fmt.Println(objects) +} + +func TestObjectsAllWithLimit(t *testing.T) { + objects, err := c.ObjectsAll(CONTAINER, &swift.ObjectsOpts{Limit: 1}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0].Name != OBJECT { + t.Error("Incorrect listing", objects) + } + //fmt.Println(objects) +} + +func TestObjectNamesWithPath(t *testing.T) { + objects, err := c.ObjectNames(CONTAINER, &swift.ObjectsOpts{Delimiter: '/', Path: ""}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 1 || objects[0] != OBJECT { + t.Error("Bad listing with path", objects) + } + // fmt.Println(objects) + objects, err = c.ObjectNames(CONTAINER, &swift.ObjectsOpts{Delimiter: '/', Path: "Downloads/"}) + if err != nil { + t.Fatal(err) + } + if len(objects) != 0 { + t.Error("Bad listing with path", objects) + } + // fmt.Println(objects) +} + +func TestObjectCopy(t *testing.T) { + _, err := c.ObjectCopy(CONTAINER, OBJECT, CONTAINER, OBJECT2, nil) + if err != nil { + t.Fatal(err) + } + err = c.ObjectDelete(CONTAINER, OBJECT2) + if err != nil { + t.Fatal(err) + } +} + +func TestObjectCopyWithMetadata(t *testing.T) { + m := swift.Metadata{} + m["copy-special-metadata"] = "hello" + m["hello"] = "3" + h := m.ObjectHeaders() + h["Content-Type"] = "image/jpeg" + _, err := c.ObjectCopy(CONTAINER, OBJECT, CONTAINER, OBJECT2, h) + if err != nil { + t.Fatal(err) + } + // Re-read the metadata to see if it is correct + _, headers, err := c.Object(CONTAINER, OBJECT2) + if err != nil { + t.Fatal(err) + } + if headers["Content-Type"] != "image/jpeg" { + t.Error("Didn't change content type") + } + compareMaps(t, headers.ObjectMetadata(), map[string]string{"hello": "3", "potato-salad": "", "copy-special-metadata": "hello"}) + err = c.ObjectDelete(CONTAINER, OBJECT2) + if err != nil { + t.Fatal(err) + } +} + +func TestObjectMove(t *testing.T) { + err := c.ObjectMove(CONTAINER, OBJECT, CONTAINER, OBJECT2) + if err != nil { + t.Fatal(err) + } + testExistenceAfterDelete(t, CONTAINER, OBJECT) + _, _, err = c.Object(CONTAINER, OBJECT2) + if err != nil { + t.Fatal(err) + } + + err = c.ObjectMove(CONTAINER, OBJECT2, CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + testExistenceAfterDelete(t, CONTAINER, OBJECT2) + _, headers, err := c.Object(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + compareMaps(t, headers.ObjectMetadata(), map[string]string{"hello": "", "potato-salad": ""}) +} + +func TestObjectUpdateContentType(t *testing.T) { + err := c.ObjectUpdateContentType(CONTAINER, OBJECT, "text/potato") + if err != nil { + t.Fatal(err) + } + // Re-read the metadata to see if it is correct + _, headers, err := c.Object(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + if headers["Content-Type"] != "text/potato" { + t.Error("Didn't change content type") + } + compareMaps(t, headers.ObjectMetadata(), map[string]string{"hello": "", "potato-salad": ""}) +} + +func TestVersionContainerCreate(t *testing.T) { + if err := c.VersionContainerCreate(CURRENT_CONTAINER, VERSIONS_CONTAINER); err != nil { + if err == swift.Forbidden { + t.Log("Server doesn't support Versions - skipping test") + skipVersionTests = true + return + } + t.Fatal(err) + } +} + +func TestVersionObjectAdd(t *testing.T) { + if skipVersionTests { + t.Log("Server doesn't support Versions - skipping test") + return + } + // Version 1 + if err := c.ObjectPutString(CURRENT_CONTAINER, OBJECT, CONTENTS, ""); err != nil { + t.Fatal(err) + } + if contents, err := c.ObjectGetString(CURRENT_CONTAINER, OBJECT); err != nil { + t.Fatal(err) + } else if contents != CONTENTS { + t.Error("Contents wrong") + } + + // Version 2 + if err := c.ObjectPutString(CURRENT_CONTAINER, OBJECT, CONTENTS2, ""); err != nil { + t.Fatal(err) + } + if contents, err := c.ObjectGetString(CURRENT_CONTAINER, OBJECT); err != nil { + t.Fatal(err) + } else if contents != CONTENTS2 { + t.Error("Contents wrong") + } + + // Version 3 + if err := c.ObjectPutString(CURRENT_CONTAINER, OBJECT, CONTENTS2, ""); err != nil { + t.Fatal(err) + } +} + +func TestVersionObjectList(t *testing.T) { + if skipVersionTests { + t.Log("Server doesn't support Versions - skipping test") + return + } + list, err := c.VersionObjectList(VERSIONS_CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + + if len(list) != 2 { + t.Error("Version list should return 2 objects") + } + + //fmt.Print(list) +} + +func TestVersionObjectDelete(t *testing.T) { + if skipVersionTests { + t.Log("Server doesn't support Versions - skipping test") + return + } + // Delete Version 3 + if err := c.ObjectDelete(CURRENT_CONTAINER, OBJECT); err != nil { + t.Fatal(err) + } + + // Delete Version 2 + if err := c.ObjectDelete(CURRENT_CONTAINER, OBJECT); err != nil { + t.Fatal(err) + } + + // Contents should be reverted to Version 1 + if contents, err := c.ObjectGetString(CURRENT_CONTAINER, OBJECT); err != nil { + t.Fatal(err) + } else if contents != CONTENTS { + t.Error("Contents wrong") + } +} + +// cleanUpContainer deletes everything in the container and then the +// container. It expects the container to be empty and if it wasn't +// it logs an error. +func cleanUpContainer(t *testing.T, container string) { + objects, err := c.Objects(container, nil) + if err != nil { + t.Error(err, container) + } else { + if len(objects) != 0 { + t.Error("Container not empty", container) + } + for _, object := range objects { + t.Log("Deleting spurious", object.Name) + err = c.ObjectDelete(container, object.Name) + if err != nil { + t.Error(err, container) + } + } + } + + if err := c.ContainerDelete(container); err != nil { + t.Error(err, container) + } +} + +func TestVersionDeleteContent(t *testing.T) { + if skipVersionTests { + t.Log("Server doesn't support Versions - skipping test") + } else { + // Delete Version 1 + if err := c.ObjectDelete(CURRENT_CONTAINER, OBJECT); err != nil { + t.Fatal(err) + } + } + cleanUpContainer(t, VERSIONS_CONTAINER) + cleanUpContainer(t, CURRENT_CONTAINER) +} + +// Check for non existence after delete +// May have to do it a few times to wait for swift to be consistent. +func testExistenceAfterDelete(t *testing.T, container, object string) { + for i := 10; i <= 0; i-- { + _, _, err := c.Object(container, object) + if err == swift.ObjectNotFound { + break + } + if i == 0 { + t.Fatalf("Expecting object %q/%q not found not: err=%v", container, object, err) + } + time.Sleep(1 * time.Second) + } +} + +func TestObjectDelete(t *testing.T) { + err := c.ObjectDelete(CONTAINER, OBJECT) + if err != nil { + t.Fatal(err) + } + testExistenceAfterDelete(t, CONTAINER, OBJECT) + err = c.ObjectDelete(CONTAINER, OBJECT) + if err != swift.ObjectNotFound { + t.Fatal("Expecting Object not found", err) + } +} + +func TestBulkDelete(t *testing.T) { + result, err := c.BulkDelete(CONTAINER, []string{OBJECT}) + if err == swift.Forbidden { + t.Log("Server doesn't support BulkDelete - skipping test") + return + } + if err != nil { + t.Fatal(err) + } + if result.NumberNotFound != 1 { + t.Error("Expected 1, actual:", result.NumberNotFound) + } + if result.NumberDeleted != 0 { + t.Error("Expected 0, actual:", result.NumberDeleted) + } + err = c.ObjectPutString(CONTAINER, OBJECT, CONTENTS, "") + if err != nil { + t.Fatal(err) + } + result, err = c.BulkDelete(CONTAINER, []string{OBJECT2, OBJECT}) + if err != nil { + t.Fatal(err) + } + if result.NumberNotFound != 1 { + t.Error("Expected 1, actual:", result.NumberNotFound) + } + if result.NumberDeleted != 1 { + t.Error("Expected 1, actual:", result.NumberDeleted) + } + t.Log("Errors:", result.Errors) +} + +func TestBulkUpload(t *testing.T) { + buffer := new(bytes.Buffer) + ds := tar.NewWriter(buffer) + var files = []struct{ Name, Body string }{ + {OBJECT, CONTENTS}, + {OBJECT2, CONTENTS2}, + } + for _, file := range files { + hdr := &tar.Header{ + Name: file.Name, + Size: int64(len(file.Body)), + } + if err := ds.WriteHeader(hdr); err != nil { + t.Fatal(err) + } + if _, err := ds.Write([]byte(file.Body)); err != nil { + t.Fatal(err) + } + } + if err := ds.Close(); err != nil { + t.Fatal(err) + } + + result, err := c.BulkUpload(CONTAINER, buffer, swift.UploadTar, nil) + if err == swift.Forbidden { + t.Log("Server doesn't support BulkUpload - skipping test") + return + } + if err != nil { + t.Fatal(err) + } + if result.NumberCreated != 2 { + t.Error("Expected 2, actual:", result.NumberCreated) + } + t.Log("Errors:", result.Errors) + + _, _, err = c.Object(CONTAINER, OBJECT) + if err != nil { + t.Error("Expecting object to be found") + } + _, _, err = c.Object(CONTAINER, OBJECT2) + if err != nil { + t.Error("Expecting object to be found") + } + c.ObjectDelete(CONTAINER, OBJECT) + c.ObjectDelete(CONTAINER, OBJECT2) +} + +func TestObjectDifficultName(t *testing.T) { + const name = `hello? sausage/êé/Hello, 世界/ " ' @ < > & ?/` + err := c.ObjectPutString(CONTAINER, name, CONTENTS, "") + if err != nil { + t.Fatal(err) + } + objects, err := c.ObjectNamesAll(CONTAINER, nil) + if err != nil { + t.Error(err) + } + found := false + for _, object := range objects { + if object == name { + found = true + break + } + } + if !found { + t.Errorf("Couldn't find %q in listing %q", name, objects) + } + err = c.ObjectDelete(CONTAINER, name) + if err != nil { + t.Fatal(err) + } +} + +func TestContainerDelete(t *testing.T) { + err := c.ContainerDelete(CONTAINER) + if err != nil { + t.Fatal(err) + } + err = c.ContainerDelete(CONTAINER) + if err != swift.ContainerNotFound { + t.Fatal("Expecting container not found", err) + } + _, _, err = c.Container(CONTAINER) + if err != swift.ContainerNotFound { + t.Fatal("Expecting container not found", err) + } +} + +func TestUnAuthenticate(t *testing.T) { + c.UnAuthenticate() + if c.Authenticated() { + t.Fatal("Shouldn't be authenticated") + } + // Test re-authenticate + err := c.Authenticate() + if err != nil { + t.Fatal("ReAuth failed", err) + } + if !c.Authenticated() { + t.Fatal("Not authenticated") + } +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/swifttest/server.go b/Godeps/_workspace/src/github.com/lebauce/swift/swifttest/server.go new file mode 100644 index 00000000..3e38efd1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/swifttest/server.go @@ -0,0 +1,885 @@ +// This implements a very basic Swift server +// Everything is stored in memory +// +// This comes from the https://github.com/mitchellh/goamz +// and was adapted for Swift +// +package swifttest + +import ( + "bytes" + "crypto/md5" + "crypto/rand" + "encoding/hex" + "encoding/json" + "fmt" + "io" + "io/ioutil" + "log" + "mime" + "net" + "net/http" + "net/url" + "path" + "regexp" + "sort" + "strconv" + "strings" + "sync" + "testing" + "time" + + "github.com/ncw/swift" +) + +const ( + DEBUG = false +) + +type SwiftServer struct { + t *testing.T + reqId int + mu sync.Mutex + Listener net.Listener + AuthURL string + URL string + Containers map[string]*container + Accounts map[string]*account + Sessions map[string]*session +} + +// The Folder type represents a container stored in an account +type Folder struct { + Count int `json:"count"` + Bytes int `json:"bytes"` + Name string `json:"name"` +} + +// The Key type represents an item stored in an container. +type Key struct { + Key string `json:"name"` + LastModified string `json:"last_modified"` + Size int64 `json:"bytes"` + // ETag gives the hex-encoded MD5 sum of the contents, + // surrounded with double-quotes. + ETag string `json:"hash"` + ContentType string `json:"content_type"` + // Owner Owner +} + +type Subdir struct { + Subdir string `json:"subdir"` +} + +type swiftError struct { + statusCode int + Code string + Message string +} + +type action struct { + srv *SwiftServer + w http.ResponseWriter + req *http.Request + reqId string + user *account +} + +type session struct { + username string +} + +type metadata struct { + meta http.Header // metadata to return with requests. +} + +type account struct { + swift.Account + metadata + password string +} + +type object struct { + metadata + name string + mtime time.Time + checksum []byte // also held as ETag in meta. + data []byte + content_type string +} + +type container struct { + metadata + name string + ctime time.Time + objects map[string]*object + bytes int +} + +// A resource encapsulates the subject of an HTTP request. +// The resource referred to may or may not exist +// when the request is made. +type resource interface { + put(a *action) interface{} + get(a *action) interface{} + post(a *action) interface{} + delete(a *action) interface{} + copy(a *action) interface{} +} + +type objectResource struct { + name string + version string + container *container // always non-nil. + object *object // may be nil. +} + +type containerResource struct { + name string + container *container // non-nil if the container already exists. +} + +var responseParams = map[string]bool{ + "content-type": true, + "content-language": true, + "expires": true, + "cache-control": true, + "content-disposition": true, + "content-encoding": true, +} + +func fatalf(code int, codeStr string, errf string, a ...interface{}) { + panic(&swiftError{ + statusCode: code, + Code: codeStr, + Message: fmt.Sprintf(errf, a...), + }) +} + +func (m metadata) setMetadata(a *action, resource string) { + for key, values := range a.req.Header { + key = http.CanonicalHeaderKey(key) + if metaHeaders[key] || strings.HasPrefix(key, "X-"+strings.Title(resource)+"-Meta-") { + if values[0] != "" || resource == "object" { + m.meta[key] = values + } else { + m.meta.Del(key) + } + } + } +} + +func (m metadata) getMetadata(a *action) { + h := a.w.Header() + for name, d := range m.meta { + h[name] = d + } +} + +func (c container) list(delimiter string, marker string, prefix string, parent string) (resp []interface{}) { + var tmp orderedObjects + + // first get all matching objects and arrange them in alphabetical order. + for _, obj := range c.objects { + if strings.HasPrefix(obj.name, prefix) { + tmp = append(tmp, obj) + } + } + sort.Sort(tmp) + + var prefixes []string + for _, obj := range tmp { + if !strings.HasPrefix(obj.name, prefix) { + continue + } + + isPrefix := false + name := obj.name + if parent != "" { + if path.Dir(obj.name) != path.Clean(parent) { + continue + } + } else if delimiter != "" { + if i := strings.Index(obj.name[len(prefix):], delimiter); i >= 0 { + name = obj.name[:len(prefix)+i+len(delimiter)] + if prefixes != nil && prefixes[len(prefixes)-1] == name { + continue + } + isPrefix = true + } + } + + if name <= marker { + continue + } + + if isPrefix { + prefixes = append(prefixes, name) + + resp = append(resp, Subdir{ + Subdir: name, + }) + } else { + resp = append(resp, obj) + } + } + + return +} + +// GET on a container lists the objects in the container. +func (r containerResource) get(a *action) interface{} { + if r.container == nil { + fatalf(404, "NoSuchContainer", "The specified container does not exist") + } + + delimiter := a.req.Form.Get("delimiter") + marker := a.req.Form.Get("marker") + prefix := a.req.Form.Get("prefix") + format := a.req.URL.Query().Get("format") + parent := a.req.Form.Get("path") + + a.w.Header().Set("X-Container-Bytes-Used", strconv.Itoa(r.container.bytes)) + a.w.Header().Set("X-Container-Object-Count", strconv.Itoa(len(r.container.objects))) + r.container.getMetadata(a) + + if a.req.Method == "HEAD" { + return nil + } + + objects := r.container.list(delimiter, marker, prefix, parent) + + if format == "json" { + a.w.Header().Set("Content-Type", "application/json") + var resp []interface{} + for _, item := range objects { + if obj, ok := item.(*object); ok { + resp = append(resp, obj.Key()) + } else { + resp = append(resp, item) + } + } + return resp + } else { + for _, item := range objects { + if obj, ok := item.(*object); ok { + a.w.Write([]byte(obj.name + "\n")) + } else if subdir, ok := item.(Subdir); ok { + a.w.Write([]byte(subdir.Subdir + "\n")) + } + } + return nil + } +} + +// orderedContainers holds a slice of containers that can be sorted +// by name. +type orderedContainers []*container + +func (s orderedContainers) Len() int { + return len(s) +} +func (s orderedContainers) Swap(i, j int) { + s[i], s[j] = s[j], s[i] +} +func (s orderedContainers) Less(i, j int) bool { + return s[i].name < s[j].name +} + +func (r containerResource) delete(a *action) interface{} { + b := r.container + if b == nil { + fatalf(404, "NoSuchContainer", "The specified container does not exist") + } + if len(b.objects) > 0 { + fatalf(409, "Conflict", "The container you tried to delete is not empty") + } + delete(a.srv.Containers, b.name) + a.user.Containers-- + return nil +} + +func (r containerResource) put(a *action) interface{} { + if a.req.URL.Query().Get("extract-archive") != "" { + fatalf(403, "Operation forbidden", "Bulk upload is not supported") + } + + if r.container == nil { + if !validContainerName(r.name) { + fatalf(400, "InvalidContainerName", "The specified container is not valid") + } + r.container = &container{ + name: r.name, + objects: make(map[string]*object), + metadata: metadata{ + meta: make(http.Header), + }, + } + r.container.setMetadata(a, "container") + a.srv.Containers[r.name] = r.container + a.user.Containers++ + } + + return nil +} + +func (r containerResource) post(a *action) interface{} { + if r.container == nil { + fatalf(400, "Method", "The resource could not be found.") + } else { + r.container.setMetadata(a, "container") + a.w.WriteHeader(201) + jsonMarshal(a.w, Folder{ + Count: len(r.container.objects), + Bytes: r.container.bytes, + Name: r.container.name, + }) + } + return nil +} + +func (containerResource) copy(a *action) interface{} { return notAllowed() } + +// validContainerName returns whether name is a valid bucket name. +// Here are the rules, from: +// http://docs.openstack.org/api/openstack-object-storage/1.0/content/ch_object-storage-dev-api-storage.html +// +// Container names cannot exceed 256 bytes and cannot contain the / character. +// +func validContainerName(name string) bool { + if len(name) == 0 || len(name) > 256 { + return false + } + for _, r := range name { + switch { + case r == '/': + return false + default: + } + } + return true +} + +// orderedObjects holds a slice of objects that can be sorted +// by name. +type orderedObjects []*object + +func (s orderedObjects) Len() int { + return len(s) +} +func (s orderedObjects) Swap(i, j int) { + s[i], s[j] = s[j], s[i] +} +func (s orderedObjects) Less(i, j int) bool { + return s[i].name < s[j].name +} + +func (obj *object) Key() Key { + return Key{ + Key: obj.name, + LastModified: obj.mtime.Format("2006-01-02T15:04:05"), + Size: int64(len(obj.data)), + ETag: fmt.Sprintf("%x", obj.checksum), + ContentType: obj.content_type, + } +} + +var metaHeaders = map[string]bool{ + "Content-Type": true, + "Content-Encoding": true, + "Content-Disposition": true, + "X-Object-Manifest": true, +} + +var rangeRegexp = regexp.MustCompile("(bytes=)?([0-9]*)-([0-9]*)") + +// GET on an object gets the contents of the object. +func (objr objectResource) get(a *action) interface{} { + var ( + etag []byte + reader io.Reader + start int + end int = -1 + ) + obj := objr.object + if obj == nil { + fatalf(404, "Not Found", "The resource could not be found.") + } + + h := a.w.Header() + // add metadata + obj.getMetadata(a) + + if r := a.req.Header.Get("Range"); r != "" { + m := rangeRegexp.FindStringSubmatch(r) + if m[2] != "" { + start, _ = strconv.Atoi(m[2]) + } + if m[3] != "" { + end, _ = strconv.Atoi(m[3]) + } + } + + max := func(a int, b int) int { + if a > b { + return a + } + return b + } + + if manifest, ok := obj.meta["X-Object-Manifest"]; ok { + var segments []io.Reader + components := strings.SplitN(manifest[0], "/", 2) + segContainer := a.srv.Containers[components[0]] + prefix := components[1] + resp := segContainer.list("", "", prefix, "") + sum := md5.New() + cursor := 0 + size := 0 + for _, item := range resp { + if obj, ok := item.(*object); ok { + length := len(obj.data) + size += length + sum.Write([]byte(components[0] + "/" + obj.name + "\n")) + if start >= cursor+length { + continue + } + segments = append(segments, bytes.NewReader(obj.data[max(0, start - cursor):])) + cursor += length + } + } + etag = sum.Sum(nil) + if end == -1 { + end = size + } + reader = io.LimitReader(io.MultiReader(segments...), int64(end - start)) + } else { + if end == -1 { + end = len(obj.data) + } + etag = obj.checksum + reader = bytes.NewReader(obj.data[start:end]) + } + + h.Set("Content-Length", fmt.Sprint(end - start)) + h.Set("ETag", hex.EncodeToString(etag)) + h.Set("Last-Modified", obj.mtime.Format(http.TimeFormat)) + + if a.req.Method == "HEAD" { + return nil + } + + // TODO avoid holding the lock when writing data. + _, err := io.Copy(a.w, reader) + if err != nil { + // we can't do much except just log the fact. + log.Printf("error writing data: %v", err) + } + return nil +} + +// PUT on an object creates the object. +func (objr objectResource) put(a *action) interface{} { + var expectHash []byte + if c := a.req.Header.Get("ETag"); c != "" { + var err error + expectHash, err = hex.DecodeString(c) + if err != nil || len(expectHash) != md5.Size { + fatalf(400, "InvalidDigest", "The ETag you specified was invalid") + } + } + sum := md5.New() + // TODO avoid holding lock while reading data. + data, err := ioutil.ReadAll(io.TeeReader(a.req.Body, sum)) + if err != nil { + fatalf(400, "TODO", "read error") + } + gotHash := sum.Sum(nil) + if expectHash != nil && bytes.Compare(gotHash, expectHash) != 0 { + fatalf(422, "Bad ETag", "The ETag you specified did not match what we received") + } + if a.req.ContentLength >= 0 && int64(len(data)) != a.req.ContentLength { + fatalf(400, "IncompleteBody", "You did not provide the number of bytes specified by the Content-Length HTTP header") + } + + // TODO is this correct, or should we erase all previous metadata? + obj := objr.object + if obj == nil { + obj = &object{ + name: objr.name, + metadata: metadata{ + meta: make(http.Header), + }, + } + a.user.Objects++ + } else { + objr.container.bytes -= len(obj.data) + a.user.BytesUsed -= int64(len(obj.data)) + } + + var content_type string + if content_type = a.req.Header.Get("Content-Type"); content_type == "" { + content_type := mime.TypeByExtension(obj.name) + if content_type == "" { + content_type = "application/octet-stream" + } + } + + // PUT request has been successful - save data and metadata + obj.setMetadata(a, "object") + obj.content_type = content_type + obj.data = data + obj.checksum = gotHash + obj.mtime = time.Now().UTC() + objr.container.objects[objr.name] = obj + objr.container.bytes += len(data) + a.user.BytesUsed += int64(len(data)) + + h := a.w.Header() + h.Set("ETag", hex.EncodeToString(obj.checksum)) + + return nil +} + +func (objr objectResource) delete(a *action) interface{} { + if objr.object == nil { + fatalf(404, "NoSuchKey", "The specified key does not exist.") + } + + objr.container.bytes -= len(objr.object.data) + a.user.BytesUsed -= int64(len(objr.object.data)) + delete(objr.container.objects, objr.name) + a.user.Objects-- + return nil +} + +func (objr objectResource) post(a *action) interface{} { + obj := objr.object + obj.setMetadata(a, "object") + return nil +} + +func (objr objectResource) copy(a *action) interface{} { + if objr.object == nil { + fatalf(404, "NoSuchKey", "The specified key does not exist.") + } + + obj := objr.object + destination := a.req.Header.Get("Destination") + if destination == "" { + fatalf(400, "Bad Request", "You must provide a Destination header") + } + + var ( + obj2 *object + objr2 objectResource + ) + + destURL, _ := url.Parse("/v1/AUTH_tk/" + destination) + r := a.srv.resourceForURL(destURL) + switch t := r.(type) { + case objectResource: + objr2 = t + if objr2.object == nil { + obj2 = &object{ + name: objr2.name, + metadata: metadata{ + meta: make(http.Header), + }, + } + a.user.Objects++ + } else { + obj2 = objr2.object + objr2.container.bytes -= len(obj2.data) + a.user.BytesUsed -= int64(len(obj2.data)) + } + default: + fatalf(400, "Bad Request", "Destination must point to a valid object path") + } + + obj2.content_type = obj.content_type + obj2.data = obj.data + obj2.checksum = obj.checksum + obj2.mtime = time.Now() + objr2.container.objects[objr2.name] = obj2 + objr2.container.bytes += len(obj.data) + a.user.BytesUsed += int64(len(obj.data)) + + for key, values := range obj.metadata.meta { + obj2.metadata.meta[key] = values + } + obj2.setMetadata(a, "object") + + return nil +} + +func (s *SwiftServer) serveHTTP(w http.ResponseWriter, req *http.Request) { + // ignore error from ParseForm as it's usually spurious. + req.ParseForm() + + s.mu.Lock() + defer s.mu.Unlock() + + if DEBUG { + log.Printf("swifttest %q %q", req.Method, req.URL) + } + a := &action{ + srv: s, + w: w, + req: req, + reqId: fmt.Sprintf("%09X", s.reqId), + } + s.reqId++ + + var r resource + defer func() { + switch err := recover().(type) { + case *swiftError: + w.Header().Set("Content-Type", `text/plain; charset=utf-8`) + http.Error(w, err.Message, err.statusCode) + case nil: + default: + panic(err) + } + }() + + var resp interface{} + + if req.URL.String() == "/v1.0" { + username := req.Header.Get("x-auth-user") + key := req.Header.Get("x-auth-key") + if acct, ok := s.Accounts[username]; ok { + if acct.password == key { + r := make([]byte, 16) + _, _ = rand.Read(r) + id := fmt.Sprintf("%X", r) + w.Header().Set("X-Storage-Url", s.URL+"/AUTH_"+username) + w.Header().Set("X-Auth-Token", "AUTH_tk"+string(id)) + w.Header().Set("X-Storage-Token", "AUTH_tk"+string(id)) + s.Sessions[id] = &session{ + username: username, + } + return + } + } + panic(notAuthorized()) + } + + key := req.Header.Get("x-auth-token") + session, ok := s.Sessions[key[7:]] + if !ok { + panic(notAuthorized()) + } + + a.user = s.Accounts[session.username] + + r = s.resourceForURL(req.URL) + + switch req.Method { + case "PUT": + resp = r.put(a) + case "GET", "HEAD": + resp = r.get(a) + case "DELETE": + resp = r.delete(a) + case "POST": + resp = r.post(a) + case "COPY": + resp = r.copy(a) + default: + fatalf(400, "MethodNotAllowed", "unknown http request method %q", req.Method) + } + + content_type := req.Header.Get("Content-Type") + if resp != nil && req.Method != "HEAD" { + if strings.HasPrefix(content_type, "application/json") || + req.URL.Query().Get("format") == "json" { + jsonMarshal(w, resp) + } else { + switch r := resp.(type) { + case string: + w.Write([]byte(r)) + default: + w.Write(resp.([]byte)) + } + } + } +} + +func jsonMarshal(w io.Writer, x interface{}) { + if err := json.NewEncoder(w).Encode(x); err != nil { + panic(fmt.Errorf("error marshalling %#v: %v", x, err)) + } +} + +var pathRegexp = regexp.MustCompile("/v1/AUTH_[a-zA-Z0-9]+(/([^/]+)(/(.*))?)?") + +// resourceForURL returns a resource object for the given URL. +func (srv *SwiftServer) resourceForURL(u *url.URL) (r resource) { + m := pathRegexp.FindStringSubmatch(u.Path) + if m == nil { + fatalf(404, "InvalidURI", "Couldn't parse the specified URI") + } + containerName := m[2] + objectName := m[4] + if containerName == "" { + return rootResource{} + } + b := containerResource{ + name: containerName, + container: srv.Containers[containerName], + } + + if objectName == "" { + return b + } + + if b.container == nil { + fatalf(404, "NoSuchContainer", "The specified container does not exist") + } + + objr := objectResource{ + name: objectName, + version: u.Query().Get("versionId"), + container: b.container, + } + + if obj := objr.container.objects[objr.name]; obj != nil { + objr.object = obj + } + return objr +} + +// nullResource has error stubs for all resource methods. +type nullResource struct{} + +func notAllowed() interface{} { + fatalf(400, "MethodNotAllowed", "The specified method is not allowed against this resource") + return nil +} + +func notAuthorized() interface{} { + fatalf(401, "Unauthorized", "This server could not verify that you are authorized to access the document you requested.") + return nil +} + +func (nullResource) put(a *action) interface{} { return notAllowed() } +func (nullResource) get(a *action) interface{} { return notAllowed() } +func (nullResource) post(a *action) interface{} { return notAllowed() } +func (nullResource) delete(a *action) interface{} { return notAllowed() } +func (nullResource) copy(a *action) interface{} { return notAllowed() } + +type rootResource struct{} + +func (rootResource) put(a *action) interface{} { return notAllowed() } +func (rootResource) get(a *action) interface{} { + marker := a.req.Form.Get("marker") + prefix := a.req.Form.Get("prefix") + format := a.req.URL.Query().Get("format") + + h := a.w.Header() + + h.Set("X-Account-Bytes-Used", strconv.Itoa(int(a.user.BytesUsed))) + h.Set("X-Account-Container-Count", strconv.Itoa(int(a.user.Containers))) + h.Set("X-Account-Object-Count", strconv.Itoa(int(a.user.Objects))) + + // add metadata + a.user.metadata.getMetadata(a) + + if a.req.Method == "HEAD" { + return nil + } + + var tmp orderedContainers + // first get all matching objects and arrange them in alphabetical order. + for _, container := range a.srv.Containers { + if strings.HasPrefix(container.name, prefix) { + tmp = append(tmp, container) + } + } + sort.Sort(tmp) + + resp := make([]Folder, 0) + for _, container := range tmp { + if container.name <= marker { + continue + } + if format == "json" { + resp = append(resp, Folder{ + Count: len(container.objects), + Bytes: container.bytes, + Name: container.name, + }) + } else { + a.w.Write([]byte(container.name + "\n")) + } + } + + if format == "json" { + return resp + } else { + return nil + } +} + +func (r rootResource) post(a *action) interface{} { + a.user.metadata.setMetadata(a, "account") + return nil +} + +func (rootResource) delete(a *action) interface{} { + if a.req.URL.Query().Get("bulk-delete") == "1" { + fatalf(403, "Operation forbidden", "Bulk delete is not supported") + } + + return notAllowed() +} + +func (rootResource) copy(a *action) interface{} { return notAllowed() } + +func NewSwiftServer(address string) (*SwiftServer, error) { + var ( + l net.Listener + err error + ) + if strings.Index(address, ":") == -1 { + for port := 1024; port < 65535; port++ { + addr := fmt.Sprintf("%s:%d", address, port) + if l, err = net.Listen("tcp", addr); err == nil { + address = addr + break + } + } + } else { + l, err = net.Listen("tcp", address) + } + if err != nil { + return nil, fmt.Errorf("cannot listen on %s: %v", address, err) + } + + server := &SwiftServer{ + Listener: l, + AuthURL: "http://" + l.Addr().String() + "/v1.0", + URL: "http://" + l.Addr().String() + "/v1", + Containers: make(map[string]*container), + Accounts: make(map[string]*account), + Sessions: make(map[string]*session), + } + + server.Accounts["swifttest"] = &account{ + password: "swifttest", + metadata: metadata{ + meta: make(http.Header), + }, + } + + go http.Serve(l, http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { + server.serveHTTP(w, req) + })) + + return server, nil +} + +func (srv SwiftServer) Close() { + srv.Listener.Close() +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/timeout_reader.go b/Godeps/_workspace/src/github.com/lebauce/swift/timeout_reader.go new file mode 100644 index 00000000..3839e9ea --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/timeout_reader.go @@ -0,0 +1,57 @@ +package swift + +import ( + "io" + "time" +) + +// An io.ReadCloser which obeys an idle timeout +type timeoutReader struct { + reader io.ReadCloser + timeout time.Duration + cancel func() +} + +// Returns a wrapper around the reader which obeys an idle +// timeout. The cancel function is called if the timeout happens +func newTimeoutReader(reader io.ReadCloser, timeout time.Duration, cancel func()) *timeoutReader { + return &timeoutReader{ + reader: reader, + timeout: timeout, + cancel: cancel, + } +} + +// Read reads up to len(p) bytes into p +// +// Waits at most for timeout for the read to complete otherwise returns a timeout +func (t *timeoutReader) Read(p []byte) (int, error) { + // FIXME limit the amount of data read in one chunk so as to not exceed the timeout? + // Do the read in the background + type result struct { + n int + err error + } + done := make(chan result, 1) + go func() { + n, err := t.reader.Read(p) + done <- result{n, err} + }() + // Wait for the read or the timeout + select { + case r := <-done: + return r.n, r.err + case <-time.After(t.timeout): + t.cancel() + return 0, TimeoutError + } + panic("unreachable") // for Go 1.0 +} + +// Close the channel +func (t *timeoutReader) Close() error { + return t.reader.Close() +} + +// Check it satisfies the interface +var _ io.ReadCloser = &timeoutReader{} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/timeout_reader_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/timeout_reader_test.go new file mode 100644 index 00000000..2348617b --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/timeout_reader_test.go @@ -0,0 +1,107 @@ +// This tests TimeoutReader + +package swift + +import ( + "io" + "io/ioutil" + "sync" + "testing" + "time" +) + +// An io.ReadCloser for testing +type testReader struct { + sync.Mutex + n int + delay time.Duration + closed bool +} + +// Returns n bytes with at time.Duration delay +func newTestReader(n int, delay time.Duration) *testReader { + return &testReader{ + n: n, + delay: delay, + } +} + +// Returns 1 byte at a time after delay +func (t *testReader) Read(p []byte) (n int, err error) { + if t.n <= 0 { + return 0, io.EOF + } + time.Sleep(t.delay) + p[0] = 'A' + t.Lock() + t.n-- + t.Unlock() + return 1, nil +} + +// Close the channel +func (t *testReader) Close() error { + t.Lock() + t.closed = true + t.Unlock() + return nil +} + +func TestTimeoutReaderNoTimeout(t *testing.T) { + test := newTestReader(3, 10*time.Millisecond) + cancelled := false + cancel := func() { + cancelled = true + } + tr := newTimeoutReader(test, 100*time.Millisecond, cancel) + b, err := ioutil.ReadAll(tr) + if err != nil || string(b) != "AAA" { + t.Fatalf("Bad read %s %s", err, b) + } + if cancelled { + t.Fatal("Cancelled when shouldn't have been") + } + if test.n != 0 { + t.Fatal("Didn't read all") + } + if test.closed { + t.Fatal("Shouldn't be closed") + } + tr.Close() + if !test.closed { + t.Fatal("Should be closed") + } +} + +func TestTimeoutReaderTimeout(t *testing.T) { + // Return those bytes slowly so we get an idle timeout + test := newTestReader(3, 100*time.Millisecond) + cancelled := false + cancel := func() { + cancelled = true + } + tr := newTimeoutReader(test, 10*time.Millisecond, cancel) + _, err := ioutil.ReadAll(tr) + if err != TimeoutError { + t.Fatal("Expecting TimeoutError, got", err) + } + if !cancelled { + t.Fatal("Not cancelled when should have been") + } + test.Lock() + n := test.n + test.Unlock() + if n == 0 { + t.Fatal("Read all") + } + if n != 3 { + t.Fatal("Didn't read any") + } + if test.closed { + t.Fatal("Shouldn't be closed") + } + tr.Close() + if !test.closed { + t.Fatal("Should be closed") + } +} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/watchdog_reader.go b/Godeps/_workspace/src/github.com/lebauce/swift/watchdog_reader.go new file mode 100644 index 00000000..b12b1bbe --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/watchdog_reader.go @@ -0,0 +1,34 @@ +package swift + +import ( + "io" + "time" +) + +// An io.Reader which resets a watchdog timer whenever data is read +type watchdogReader struct { + timeout time.Duration + reader io.Reader + timer *time.Timer +} + +// Returns a new reader which will kick the watchdog timer whenever data is read +func newWatchdogReader(reader io.Reader, timeout time.Duration, timer *time.Timer) *watchdogReader { + return &watchdogReader{ + timeout: timeout, + reader: reader, + timer: timer, + } +} + +// Read reads up to len(p) bytes into p +func (t *watchdogReader) Read(p []byte) (n int, err error) { + // FIXME limit the amount of data read in one chunk so as to not exceed the timeout? + resetTimer(t.timer, t.timeout) + n, err = t.reader.Read(p) + resetTimer(t.timer, t.timeout) + return +} + +// Check it satisfies the interface +var _ io.Reader = &watchdogReader{} diff --git a/Godeps/_workspace/src/github.com/lebauce/swift/watchdog_reader_test.go b/Godeps/_workspace/src/github.com/lebauce/swift/watchdog_reader_test.go new file mode 100644 index 00000000..8b879d44 --- /dev/null +++ b/Godeps/_workspace/src/github.com/lebauce/swift/watchdog_reader_test.go @@ -0,0 +1,61 @@ +// This tests WatchdogReader + +package swift + +import ( + "io/ioutil" + "testing" + "time" +) + +// Uses testReader from timeout_reader_test.go + +func testWatchdogReaderTimeout(t *testing.T, initialTimeout, watchdogTimeout time.Duration, expectedTimeout bool) { + test := newTestReader(3, 10*time.Millisecond) + timer := time.NewTimer(initialTimeout) + firedChan := make(chan bool) + started := make(chan bool) + go func() { + started <- true + select { + case <-timer.C: + firedChan <- true + } + }() + <-started + wr := newWatchdogReader(test, watchdogTimeout, timer) + b, err := ioutil.ReadAll(wr) + if err != nil || string(b) != "AAA" { + t.Fatalf("Bad read %s %s", err, b) + } + fired := false + select { + case fired = <-firedChan: + default: + } + if expectedTimeout { + if !fired { + t.Fatal("Timer should have fired") + } + } else { + if fired { + t.Fatal("Timer should not have fired") + } + } +} + +func TestWatchdogReaderNoTimeout(t *testing.T) { + testWatchdogReaderTimeout(t, 100*time.Millisecond, 100*time.Millisecond, false) +} + +func TestWatchdogReaderTimeout(t *testing.T) { + testWatchdogReaderTimeout(t, 5*time.Millisecond, 5*time.Millisecond, true) +} + +func TestWatchdogReaderNoTimeoutShortInitial(t *testing.T) { + testWatchdogReaderTimeout(t, 5*time.Millisecond, 100*time.Millisecond, false) +} + +func TestWatchdogReaderTimeoutLongInitial(t *testing.T) { + testWatchdogReaderTimeout(t, 100*time.Millisecond, 5*time.Millisecond, true) +}