mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-03-03 07:29:23 +00:00
Let redbean use its own ZIP EXE as NoSQL database
This commit is contained in:
Justine Tunney
parent
e56a9d0e23
commit
b9187061a7
1 changed files with 139 additions and 14 deletions
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@ -299,6 +299,7 @@ static bool loggednetworkorigin;
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static bool hasluaglobalhandler;
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static int zfd;
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static int zprot;
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static int frags;
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static int gmtoff;
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static int server;
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@ -1365,12 +1366,10 @@ static bool ZipCdirChanged(void) {
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static void OpenZip(void) {
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uint8_t *p;
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if (zmap) munmap(zmap, zsize);
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CHECK_NE(-1, (zfd = open(zpath, O_RDONLY)));
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CHECK_NE(-1, fstat(zfd, &zst));
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CHECK((zsize = zst.st_size));
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CHECK_NE(MAP_FAILED,
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(zmap = mmap((void *)0x0000300000000000, zsize, PROT_READ,
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MAP_FIXED | MAP_SHARED, zfd, 0)));
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CHECK_NE(MAP_FAILED, (zmap = mmap((void *)0x0000300000000000, zsize, zprot,
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MAP_FIXED | MAP_SHARED, zfd, 0)));
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CHECK_NOTNULL((zcdir = GetZipCdir(zmap, zsize)));
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if (endswith(zpath, ".com.dbg") && (p = memmem(zmap, zsize, "MZqFpD", 6))) {
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zsize -= p - zmap;
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@ -2367,6 +2366,14 @@ static int LuaLoadAsset(lua_State *L) {
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return 0;
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}
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static void GetDosLocalTime(int64_t utcunixts, uint16_t *out_time,
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uint16_t *out_date) {
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struct tm tm;
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CHECK_NOTNULL(localtime_r(&utcunixts, &tm));
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*out_time = DOS_TIME(tm.tm_hour, tm.tm_min, tm.tm_sec);
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*out_date = DOS_DATE(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday + 1);
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}
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static bool IsUtf8(const void *data, size_t size) {
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const unsigned char *p, *pe;
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for (p = data, pe = p + size; p + 2 <= pe; ++p) {
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@ -2391,12 +2398,125 @@ static bool IsText(const void *data, size_t size) {
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return true;
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}
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static void GetDosLocalTime(int64_t utcunixts, uint16_t *out_time,
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uint16_t *out_date) {
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struct tm tm;
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CHECK_NOTNULL(localtime_r(&utcunixts, &tm));
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*out_time = DOS_TIME(tm.tm_hour, tm.tm_min, tm.tm_sec);
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*out_date = DOS_DATE(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday + 1);
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static int LuaStoreAsset(lua_State *L) {
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int mode;
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int64_t ft;
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uint8_t era;
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uint32_t crc;
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long double now;
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char *comp, *p, *q;
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const char *path, *data, *use;
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uint16_t gflags, iattrs, mtime, mdate, dosmode, method, disk;
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size_t newlfileoffset, newcdiroffset, neweocdoffset, oldcdirrecords;
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size_t pathlen, datalen, complen, uselen, oldcdirsize, moar, extralen;
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if (IsOpenbsd() || IsNetbsd() || IsWindows()) {
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luaL_error(L, "StoreAsset() not available on Windows/NetBSD/OpenBSD yet");
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unreachable;
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}
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now = nowl();
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path = LuaCheckPath(L, 1, &pathlen);
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data = luaL_checklstring(L, 2, &datalen);
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mode = luaL_optinteger(L, 3, 0644);
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if (!(mode & S_IFMT)) mode |= S_IFREG;
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if (pathlen > 1 && path[0] == '/') ++path, --pathlen;
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crc = crc32_z(0, data, datalen);
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if (datalen < 100) {
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method = kZipCompressionNone;
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comp = NULL;
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use = data;
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uselen = datalen;
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} else {
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comp = Deflate(data, datalen, &complen);
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if (complen < datalen) {
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method = kZipCompressionDeflate;
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use = comp;
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uselen = complen;
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} else {
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method = kZipCompressionNone;
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use = data;
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uselen = datalen;
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}
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}
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disk = gflags = iattrs = 0;
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era = method ? kZipEra1993 : kZipEra1989;
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ft = (now + MODERNITYSECONDS) * HECTONANOSECONDS;
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dosmode = !(mode & 0200) ? kNtFileAttributeReadonly : 0;
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GetDosLocalTime(now, &mtime, &mdate);
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if (IsUtf8(path, pathlen)) gflags |= kZipGflagUtf8;
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if (IsText(data, datalen)) iattrs |= kZipIattrText;
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CHECK_NE(-1, flock(zfd, LOCK_EX));
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if (ZipCdirChanged()) Reindex();
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oldcdirrecords = GetZipCdirRecords(zcdir);
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oldcdirsize = GetZipCdirSize(zcdir);
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extralen = 36;
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moar = kZipLfileHdrMinSize + pathlen + datalen + oldcdirsize +
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kZipCfileHdrMinSize + pathlen + extralen + kZipCdirHdrMinSize;
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CHECK_NE(-1, ftruncate(zfd, zsize + moar));
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CHECK_NE(MAP_FAILED, (zmap = mmap((void *)0x0000300000000000, zsize + moar,
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PROT_READ | PROT_WRITE,
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MAP_FIXED | MAP_SHARED, zfd, 0)));
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p = q = (char *)zmap;
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p += zsize;
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newlfileoffset = p - q;
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p = WRITE32LE(p, kZipLfileHdrMagic);
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*p++ = era;
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*p++ = kZipOsDos;
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p = WRITE16LE(p, gflags);
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p = WRITE16LE(p, method);
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p = WRITE16LE(p, mtime);
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p = WRITE16LE(p, mdate);
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p = WRITE32LE(p, crc);
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p = WRITE32LE(p, uselen);
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p = WRITE32LE(p, datalen);
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p = WRITE16LE(p, pathlen);
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p = WRITE16LE(p, 0);
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p = mempcpy(p, path, pathlen);
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p = mempcpy(p, data, datalen);
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newcdiroffset = p - q;
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p = mempcpy(p, zmap + GetZipCdirOffset(zcdir), oldcdirsize);
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p = WRITE32LE(p, kZipCfileHdrMagic);
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*p++ = kZipCosmopolitanVersion;
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*p++ = kZipOsUnix;
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*p++ = era;
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*p++ = kZipOsDos;
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p = WRITE16LE(p, gflags);
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p = WRITE16LE(p, method);
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p = WRITE16LE(p, mtime);
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p = WRITE16LE(p, mdate);
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p = WRITE32LE(p, crc);
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p = WRITE32LE(p, uselen);
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p = WRITE32LE(p, datalen);
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p = WRITE16LE(p, pathlen);
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p = WRITE16LE(p, extralen);
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p = WRITE16LE(p, 0);
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p = WRITE16LE(p, disk);
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p = WRITE16LE(p, iattrs);
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p = WRITE16LE(p, dosmode);
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p = WRITE16LE(p, mode);
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p = WRITE32LE(p, newlfileoffset);
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p = mempcpy(p, path, pathlen);
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p = WRITE16LE(p, kZipExtraNtfs);
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p = WRITE16LE(p, 32);
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p = WRITE32LE(p, 0);
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p = WRITE16LE(p, 1);
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p = WRITE16LE(p, 24);
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p = WRITE64LE(p, ft);
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p = WRITE64LE(p, ft);
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p = WRITE64LE(p, ft);
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neweocdoffset = p - q;
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p = WRITE32LE(p, kZipCdirHdrMagic);
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p = WRITE16LE(p, 0);
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p = WRITE16LE(p, 0);
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p = WRITE16LE(p, oldcdirrecords + 1);
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p = WRITE16LE(p, oldcdirrecords + 1);
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p = WRITE32LE(p, neweocdoffset - newcdiroffset);
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p = WRITE32LE(p, newcdiroffset);
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p = WRITE16LE(p, 0);
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zcdir[0] = 'J';
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zcdir[1] = 'T';
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CHECK_NE(-1, flock(zfd, LOCK_UN));
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free(comp);
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return 0;
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}
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static int LuaGetDate(lua_State *L) {
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@ -3524,6 +3644,7 @@ static const luaL_Reg kLuaFuncs[] = {
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{"SetHeader", LuaSetHeader}, //
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{"SetLogLevel", LuaSetLogLevel}, //
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{"SetStatus", LuaSetStatus}, //
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{"StoreAsset", LuaStoreAsset}, //
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{"Underlong", LuaUnderlong}, //
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{"VisualizeControlCodes", LuaVisualizeControlCodes}, //
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{"Write", LuaWrite}, //
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@ -4517,7 +4638,6 @@ static void TuneSockets(void) {
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}
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static void RestoreApe(void) {
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int fd;
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char *p;
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size_t n;
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struct Asset *a;
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@ -4526,14 +4646,17 @@ static void RestoreApe(void) {
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if (IsOpenbsd()) return; /* TODO */
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if (IsNetbsd()) return; /* TODO */
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if (endswith(zpath, ".com.dbg")) return;
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fd = OpenExecutable();
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close(zfd);
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zfd = OpenExecutable();
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if ((a = GetAssetZip("/.ape", 5)) && (p = LoadAsset(a, &n))) {
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write(fd, p, n);
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write(zfd, p, n);
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free(p);
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zprot = PROT_READ | PROT_WRITE;
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CHECK_NE(MAP_FAILED, (zmap = mmap((void *)0x0000300000000000, zsize, zprot,
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MAP_FIXED | MAP_SHARED, zfd, 0)));
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} else {
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WARNF("/.ape not found");
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}
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close(fd);
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}
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void RedBean(int argc, char *argv[]) {
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@ -4544,7 +4667,9 @@ void RedBean(int argc, char *argv[]) {
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(shared = mmap(NULL, ROUNDUP(sizeof(struct Shared), FRAMESIZE),
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PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS,
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-1, 0)));
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zprot = PROT_READ;
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zpath = (const char *)getauxval(AT_EXECFN);
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CHECK_NE(-1, (zfd = open(zpath, O_RDONLY)));
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OpenZip();
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IndexAssets();
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RestoreApe();
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