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Remove yaml and switch to JSON because yaml is so slow

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This commit is contained in:
Joseph Schorr 2015-09-24 16:17:42 -04:00
parent f0636c0536
commit 4dc30d6321
2 changed files with 15 additions and 14 deletions
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18
endpoints/v2/manifest.py
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@ -4,7 +4,6 @@
import logging
import re
import jwt.utils
import yaml
import json
from flask import make_response, request, url_for
@ -64,9 +63,7 @@ class SignedManifest(object):
def __init__(self, manifest_bytes):
self._bytes = manifest_bytes
# TODO(jakedt): If the manifest_bytes doesn't parse as valid YAML, safe_load returns the
# same string again. We should throw some sort of exception.
self._parsed = yaml.safe_load(manifest_bytes)
self._parsed = json.loads(manifest_bytes)
self._signatures = self._parsed[_SIGNATURES_KEY]
self._namespace, self._repo_name = self._parsed[_REPO_NAME_KEY].split('/')
self._tag = self._parsed[_REPO_TAG_KEY]
@ -110,9 +107,7 @@ class SignedManifest(object):
image_digest = digest_tools.Digest.parse_digest(blob_sum_obj[_BLOB_SUM_KEY])
metadata_string = history_obj[_V1_COMPAT_KEY]
# TODO(jakedt): If the metadata_string doesn't parse as valid YAML, safe_load returns the
# same string again. We should throw some sort of exception.
v1_metadata = yaml.safe_load(metadata_string)
v1_metadata = json.loads(metadata_string)
command_list = v1_metadata.get('container_config', {}).get('Cmd', None)
command = json.dumps(command_list) if command_list else None
@ -123,12 +118,15 @@ class SignedManifest(object):
@property
def payload(self):
protected = self._signatures[0][_PROTECTED_KEY]
parsed_protected = yaml.safe_load(jwt.utils.base64url_decode(protected))
protected = str(self._signatures[0][_PROTECTED_KEY])
parsed_protected = json.loads(jwt.utils.base64url_decode(protected))
logger.debug('parsed_protected: %s', parsed_protected)
signed_content_head = self._bytes[:parsed_protected[_FORMAT_LENGTH_KEY]]
logger.debug('signed content head: %s', signed_content_head)
signed_content_tail = jwt.utils.base64url_decode(parsed_protected[_FORMAT_TAIL_KEY])
signed_content_tail = jwt.utils.base64url_decode(str(parsed_protected[_FORMAT_TAIL_KEY]))
logger.debug('signed content tail: %s', signed_content_tail)
return signed_content_head + signed_content_tail