ZEND_EXTERN_MODULE_GLOBALS(http);
+#ifdef HTTP_HAVE_ZLIB
+PHP_MINIT_FUNCTION(http_encoding)
+{
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_LEVEL_DEF", HTTP_DEFLATE_LEVEL_DEF);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_LEVEL_MIN", HTTP_DEFLATE_LEVEL_MIN);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_LEVEL_MAX", HTTP_DEFLATE_LEVEL_MAX);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_TYPE_ZLIB", HTTP_DEFLATE_TYPE_ZLIB);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_TYPE_GZIP", HTTP_DEFLATE_TYPE_GZIP);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_TYPE_RAW", HTTP_DEFLATE_TYPE_RAW);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_STRATEGY_DEF", HTTP_DEFLATE_STRATEGY_DEF);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_STRATEGY_FILT", HTTP_DEFLATE_STRATEGY_FILT);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_STRATEGY_HUFF", HTTP_DEFLATE_STRATEGY_HUFF);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_STRATEGY_RLE", HTTP_DEFLATE_STRATEGY_RLE);
+ HTTP_LONG_CONSTANT("HTTP_DEFLATE_STRATEGY_FIXED", HTTP_DEFLATE_STRATEGY_FIXED);
+ return SUCCESS;
+}
+#endif
+
static inline int eol_match(char **line, int *eol_len)
{
char *ptr = *line;
#ifdef HTTP_HAVE_ZLIB
-static const char http_encoding_gzip_header[] = {
- (const char) 0x1f, // fixed value
- (const char) 0x8b, // fixed value
- (const char) Z_DEFLATED, // compression algorithm
- (const char) 0, // none of the possible flags defined by the GZIP "RFC"
- (const char) 0, // MTIME
- (const char) 0, // =*=
- (const char) 0, // =*=
- (const char) 0, // =*=
- (const char) 0, // two possible flag values for 9 compression levels? o_O
-#ifdef PHP_WIN32
- (const char) 0x0b // OS_CODE
-#else
- (const char) 0x03 // OS_CODE
-#endif
-};
+#define HTTP_DEFLATE_LEVEL_SET(flags, level) \
+ switch (flags & 0xf) \
+ { \
+ default: \
+ if ((flags & 0xf) < 10) { \
+ level = flags & 0xf; \
+ break; \
+ } \
+ case HTTP_DEFLATE_LEVEL_DEF: \
+ level = Z_DEFAULT_COMPRESSION; \
+ break; \
+ }
+
+#define HTTP_DEFLATE_WBITS_SET(flags, wbits) \
+ switch (flags & 0xf0) \
+ { \
+ case HTTP_DEFLATE_TYPE_GZIP: \
+ wbits = HTTP_WINDOW_BITS_GZIP; \
+ break; \
+ case HTTP_DEFLATE_TYPE_RAW: \
+ wbits = HTTP_WINDOW_BITS_RAW; \
+ break; \
+ default: \
+ wbits = HTTP_WINDOW_BITS_ZLIB; \
+ break; \
+ }
+
+#define HTTP_INFLATE_WBITS_SET(flags, wbits) \
+ if (flags & HTTP_INFLATE_TYPE_RAW) { \
+ wbits = HTTP_WINDOW_BITS_RAW; \
+ } else { \
+ wbits = HTTP_WINDOW_BITS_ANY; \
+ }
-PHP_HTTP_API STATUS _http_encoding_gzencode(int level, int mtime, const char *data, size_t data_len, char **encoded, size_t *encoded_len TSRMLS_DC)
+#define HTTP_DEFLATE_STRATEGY_SET(flags, strategy) \
+ switch (flags & 0xf00) \
+ { \
+ case HTTP_DEFLATE_STRATEGY_FILT: \
+ strategy = Z_FILTERED; \
+ break; \
+ case HTTP_DEFLATE_STRATEGY_HUFF: \
+ strategy = Z_HUFFMAN_ONLY; \
+ break; \
+ case HTTP_DEFLATE_STRATEGY_RLE: \
+ strategy = Z_RLE; \
+ break; \
+ case HTTP_DEFLATE_STRATEGY_FIXED: \
+ strategy = Z_FIXED; \
+ break; \
+ default: \
+ strategy = Z_DEFAULT_STRATEGY; \
+ break; \
+ }
+
+#define HTTP_WINDOW_BITS_ZLIB 0x0000000f
+#define HTTP_WINDOW_BITS_GZIP 0x0000001f
+#define HTTP_WINDOW_BITS_ANY 0x0000002f
+#define HTTP_WINDOW_BITS_RAW -0x000000f
+
+STATUS _http_encoding_deflate(int flags, const char *data, size_t data_len, char **encoded, size_t *encoded_len TSRMLS_DC)
{
+ int status, level, wbits, strategy;
z_stream Z;
- STATUS status = Z_OK;
- if (!(data && data_len)) {
- return FAILURE;
- }
+ HTTP_DEFLATE_LEVEL_SET(flags, level);
+ HTTP_DEFLATE_WBITS_SET(flags, wbits);
+ HTTP_DEFLATE_STRATEGY_SET(flags, strategy);
+ memset(&Z, 0, sizeof(z_stream));
*encoded = NULL;
*encoded_len = 0;
- memset(&Z, 0, sizeof(z_stream));
- Z.next_in = (Bytef *) data;
- Z.avail_in = data_len;
- Z.avail_out = HTTP_ENCODING_BUFLEN(data_len) + HTTP_ENCODING_SAFPAD - 1;
+ status = deflateInit2(&Z, level, Z_DEFLATED, wbits, MAX_MEM_LEVEL, strategy);
+ if (Z_OK == status) {
+ *encoded_len = HTTP_ENCODING_BUFLEN(data_len);
+ *encoded = emalloc(*encoded_len);
+
+ Z.next_in = (Bytef *) data;
+ Z.next_out = (Bytef *) *encoded;
+ Z.avail_in = data_len;
+ Z.avail_out = *encoded_len;
+
+ status = deflate(&Z, Z_FINISH);
+ if (Z_STREAM_END == status) {
+ /* size buffer down to actual length */
+ *encoded = erealloc(*encoded, Z.total_out + 1);
+ (*encoded)[*encoded_len = Z.total_out] = '\0';
+ deflateEnd(&Z);
+ return SUCCESS;
+ } else {
+ STR_SET(*encoded, NULL);
+ *encoded_len = 0;
+ }
+ }
- *encoded = emalloc(HTTP_ENCODING_BUFLEN(data_len) + sizeof(http_encoding_gzip_header) + HTTP_ENCODING_SAFPAD);
- memcpy(*encoded, http_encoding_gzip_header, sizeof(http_encoding_gzip_header));
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Could not deflate data: %s (%s)", zError(status), Z.msg);
+ deflateEnd(&Z);
+ return FAILURE;
+}
+
+STATUS _http_encoding_inflate(const char *data, size_t data_len, char **decoded, size_t *decoded_len TSRMLS_DC)
+{
+ int status, max = 0, wbits = HTTP_WINDOW_BITS_ANY;
+ z_stream Z;
+ phpstr buffer;
- if (mtime) {
- (*encoded)[4] = (char) (mtime & 0xFF);
- (*encoded)[5] = (char) ((mtime >> 8) & 0xFF);
- (*encoded)[6] = (char) ((mtime >> 16) & 0xFF);
- (*encoded)[7] = (char) ((mtime >> 24) & 0xFF);
- }
+ memset(&Z, 0, sizeof(z_stream));
+ *decoded = NULL;
+ *decoded_len = 0;
- Z.next_out = (Bytef *) *encoded + sizeof(http_encoding_gzip_header);
+ phpstr_init_ex(&buffer, data_len << 2, PHPSTR_INIT_PREALLOC);
+ buffer.size = data_len;
- if (Z_OK == (status = deflateInit2(&Z, level, Z_DEFLATED, -MAX_WBITS, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) {
- status = deflate(&Z, Z_FINISH);
- deflateEnd(&Z);
+retry_inflate:
+ status = inflateInit2(&Z, wbits);
+ if (Z_OK == status) {
+ Z.next_in = (Bytef *) data;
+ Z.avail_in = data_len;
- if (Z_STREAM_END == status) {
- ulong crc;
- char *trailer;
-
- crc = crc32(0L, Z_NULL, 0);
- crc = crc32(crc, (const Bytef *) data, data_len);
-
- trailer = *encoded + sizeof(http_encoding_gzip_header) + Z.total_out;
-
- /* LSB */
- trailer[0] = (char) (crc & 0xFF);
- trailer[1] = (char) ((crc >> 8) & 0xFF);
- trailer[2] = (char) ((crc >> 16) & 0xFF);
- trailer[3] = (char) ((crc >> 24) & 0xFF);
- trailer[4] = (char) ((Z.total_in) & 0xFF);
- trailer[5] = (char) ((Z.total_in >> 8) & 0xFF);
- trailer[6] = (char) ((Z.total_in >> 16) & 0xFF);
- trailer[7] = (char) ((Z.total_in >> 24) & 0xFF);
+ do {
+ phpstr_resize(&buffer, data_len);
+
+ do {
+ Z.next_out = buffer.data + (buffer.used += Z.total_out);
+ Z.avail_out = (buffer.free -= Z.total_out);
+ status = inflate(&Z, Z_NO_FLUSH);
+ } while (Z_OK == status);
- *encoded_len = Z.total_out + sizeof(http_encoding_gzip_header) + 8;
- (*encoded)[*encoded_len] = '\0';
+ } while (Z_BUF_ERROR == status && ++max < HTTP_ENCODING_MAXTRY);
+
+ if (Z_DATA_ERROR == status && HTTP_WINDOW_BITS_ANY == wbits) {
+ /* raw deflated data? */
+ inflateEnd(&Z);
+ wbits = HTTP_WINDOW_BITS_RAW;
+ goto retry_inflate;
+ }
+
+ if (Z_STREAM_END == status) {
+ *decoded = erealloc(buffer.data, (buffer.used += Z.total_out) + 1);
+ (*decoded)[*decoded_len = buffer.used] = '\0';
+ inflateEnd(&Z);
return SUCCESS;
+ } else {
+ phpstr_dtor(&buffer);
}
}
- STR_SET(*encoded, NULL);
- http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Could not gzencode data: %s", zError(status));
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Could not inflate data: %s (%s)", zError(status), Z.msg);
+ inflateEnd(&Z);
return FAILURE;
}
-PHP_HTTP_API STATUS _http_encoding_gzdecode(const char *data, size_t data_len, char **decoded, size_t *decoded_len TSRMLS_DC)
+
+http_encoding_stream *_http_encoding_deflate_stream_init(http_encoding_stream *s, int flags TSRMLS_DC)
{
- const char *encoded;
- size_t encoded_len;
+ int status, level, wbits, strategy, free_stream;
- if ( (data && data_len) &&
- (SUCCESS == http_encoding_gzencode_verify(data, data_len, &encoded, &encoded_len)) &&
- (SUCCESS == http_encoding_inflate(encoded, encoded_len, decoded, decoded_len))) {
- http_encoding_gzdecode_verify(data, data_len, *decoded, *decoded_len);
- return SUCCESS;
+ if ((free_stream = !s)) {
+ s = pemalloc(sizeof(http_encoding_stream), (flags & HTTP_ENCODING_STREAM_PERSISTENT));
}
+ memset(s, 0, sizeof(http_encoding_stream));
+ s->flags = flags;
- return FAILURE;
+ HTTP_DEFLATE_LEVEL_SET(flags, level);
+ HTTP_DEFLATE_WBITS_SET(flags, wbits);
+ HTTP_DEFLATE_STRATEGY_SET(flags, strategy);
+
+ if (Z_OK == (status = deflateInit2(&s->stream, level, Z_DEFLATED, wbits, MAX_MEM_LEVEL, strategy))) {
+ int p = (flags & HTTP_ENCODING_STREAM_PERSISTENT) ? PHPSTR_INIT_PERSISTENT:0;
+
+ if ((s->stream.opaque = phpstr_init_ex(NULL, 0x8000, p))) {
+ return s;
+ }
+ deflateEnd(&s->stream);
+ status = Z_MEM_ERROR;
+ }
+
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Failed to initialize deflate encoding stream: %s", zError(status));
+ if (free_stream) {
+ efree(s);
+ }
+ return NULL;
}
-PHP_HTTP_API STATUS _http_encoding_deflate(int level, int zhdr, const char *data, size_t data_len, char **encoded, size_t *encoded_len TSRMLS_DC)
+http_encoding_stream *_http_encoding_inflate_stream_init(http_encoding_stream *s, int flags TSRMLS_DC)
{
- z_stream Z;
- STATUS status = Z_OK;
+ int status, wbits, free_stream;
- *encoded = NULL;
- *encoded_len = 0;
- memset(&Z, 0, sizeof(z_stream));
-
- Z.data_type = Z_UNKNOWN;
- Z.next_in = (Bytef *) data;
- Z.avail_in = data_len;
- Z.avail_out = HTTP_ENCODING_BUFLEN(data_len) - 1;
- Z.next_out = emalloc(HTTP_ENCODING_BUFLEN(data_len));
+ if ((free_stream = !s)) {
+ s = emalloc(sizeof(http_encoding_stream));
+ }
+ memset(s, 0, sizeof(http_encoding_stream));
+ s->flags = flags;
- *encoded = (char *) Z.next_out;
+ HTTP_INFLATE_WBITS_SET(flags, wbits);
- if (Z_OK == (status = deflateInit2(&Z, level, Z_DEFLATED, zhdr ? MAX_WBITS : -MAX_WBITS, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) {
- status = deflate(&Z, Z_FINISH);
- deflateEnd(&Z);
+ if (Z_OK == (status = inflateInit2(&s->stream, wbits))) {
+ int p = (flags & HTTP_ENCODING_STREAM_PERSISTENT) ? PHPSTR_INIT_PERSISTENT:0;
- if (Z_STREAM_END == status) {
- (*encoded)[*encoded_len = Z.total_out] = '\0';
- return SUCCESS;
+ if ((s->stream.opaque = phpstr_init_ex(NULL, 0x8000, p))) {
+ return s;
}
+ inflateEnd(&s->stream);
+ status = Z_MEM_ERROR;
+ }
+
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Failed to initialize inflate stream: %s", zError(status));
+ if (free_stream) {
+ efree(s);
+ }
+ return NULL;
+}
+
+STATUS _http_encoding_deflate_stream_update(http_encoding_stream *s, const char *data, size_t data_len, char **encoded, size_t *encoded_len TSRMLS_DC)
+{
+ int status;
+
+ /* append input to our buffer */
+ phpstr_append(PHPSTR(s->stream.opaque), data, data_len);
+
+ s->stream.next_in = PHPSTR_VAL(s->stream.opaque);
+ s->stream.avail_in = PHPSTR_LEN(s->stream.opaque);
+
+ /* deflate */
+ s->stream.avail_out = *encoded_len = HTTP_ENCODING_BUFLEN(data_len);
+ s->stream.next_out = *encoded = emalloc(*encoded_len);
+
+ switch (status = deflate(&s->stream, Z_NO_FLUSH))
+ {
+ case Z_OK:
+ case Z_STREAM_END:
+ /* cut processed chunk off the buffer */
+ phpstr_cut(PHPSTR(s->stream.opaque), 0, data_len - s->stream.avail_in);
+
+ /* size buffer down to actual size */
+ *encoded_len -= s->stream.avail_out;
+ *encoded = erealloc(*encoded, *encoded_len + 1);
+ (*encoded)[*encoded_len] = '\0';
+ return SUCCESS;
+ break;
}
STR_SET(*encoded, NULL);
- http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Could not deflate data: %s", zError(status));
+ *encoded_len = 0;
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Failed to update deflate stream: %s", zError(status));
return FAILURE;
}
-PHP_HTTP_API STATUS _http_encoding_inflate(const char *data, size_t data_len, char **decoded, size_t *decoded_len TSRMLS_DC)
+STATUS _http_encoding_inflate_stream_update(http_encoding_stream *s, const char *data, size_t data_len, char **decoded, size_t *decoded_len TSRMLS_DC)
{
- int max = 0, wbits = -MAX_WBITS;
- STATUS status;
- z_stream Z;
+ int status, max = 0;
+
+ /* append input to buffer */
+ phpstr_append(PHPSTR(s->stream.opaque), data, data_len);
+ /* for realloc() */
*decoded = NULL;
- *decoded_len = 0;
- memset(&Z, 0, sizeof(z_stream));
+ *decoded_len = data_len << 1;
+ /* inflate */
do {
- if (!max) {
- *decoded_len = data_len * 2;
- *decoded = emalloc(*decoded_len + 1);
- } else {
- size_t new_len = *decoded_len << 2;
- char *new_ptr = erealloc_recoverable(*decoded, new_len + 1);
-
- if (new_ptr) {
- *decoded = new_ptr;
- *decoded_len = new_len;
- } else {
- max = INT_MAX-1; /* avoid integer overflow on increment op */
- }
- }
+ *decoded_len <<= 1;
+ *decoded = erealloc(*decoded, *decoded_len);
-retry_inflate:
- Z.next_in = (Bytef *) data;
- Z.avail_in = data_len;
- Z.next_out = (Bytef *) *decoded;
- Z.avail_out = *decoded_len;
+retry_raw_inflate:
+ s->stream.next_in = PHPSTR_VAL(s->stream.opaque);
+ s->stream.avail_in = PHPSTR_LEN(s->stream.opaque);
+
+ s->stream.next_out = *decoded;
+ s->stream.avail_out = *decoded_len;
- if (Z_OK == (status = inflateInit2(&Z, wbits))) {
- status = inflate(&Z, Z_FINISH);
- inflateEnd(&Z);
-
- /* retry if it looks like we've got a zlib header */
- if (wbits == -MAX_WBITS && status == Z_DATA_ERROR) {
- wbits = MAX_WBITS;
- goto retry_inflate;
- }
-
- if (Z_STREAM_END == status) {
- (*decoded)[*decoded_len = Z.total_out] = '\0';
+ switch (status = inflate(&s->stream, Z_NO_FLUSH))
+ {
+ case Z_OK:
+ case Z_STREAM_END:
+ /* cut off */
+ phpstr_cut(PHPSTR(s->stream.opaque), 0, data_len - s->stream.avail_in);
+
+ /* size down */
+ *decoded_len -= s->stream.avail_out;
+ *decoded = erealloc(*decoded, *decoded_len + 1);
+ (*decoded)[*decoded_len] = '\0';
return SUCCESS;
- }
+ break;
+
+ case Z_DATA_ERROR:
+ /* raw deflated data ? */
+ if (!(s->flags & HTTP_INFLATE_TYPE_RAW) && !s->stream.total_out) {
+ inflateEnd(&s->stream);
+ s->flags |= HTTP_INFLATE_TYPE_RAW;
+ inflateInit2(&s->stream, HTTP_WINDOW_BITS_RAW);
+ goto retry_raw_inflate;
+ }
+ break;
}
- } while (status == Z_BUF_ERROR && ++max < HTTP_ENCODING_MAXTRY);
+ if (Z_BUF_ERROR == status) DebugBreak();
+ } while (Z_BUF_ERROR == status && ++max < HTTP_ENCODING_MAXTRY);
+
+ STR_SET(*decoded, NULL);
+ *decoded_len = 0;
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Could not update inflate stream: %s", zError(status));
+ return FAILURE;
+}
+
+STATUS _http_encoding_deflate_stream_finish(http_encoding_stream *s, char **encoded, size_t *encoded_len TSRMLS_DC)
+{
+ int status;
+
+ /* deflate remaining input */
+ s->stream.next_in = PHPSTR_VAL(s->stream.opaque);
+ s->stream.avail_in = PHPSTR_LEN(s->stream.opaque);
+
+ s->stream.avail_out = *encoded_len = 0x800;
+ s->stream.next_out = *encoded = emalloc(*encoded_len);
+
+ do {
+ status = deflate(&s->stream, Z_FINISH);
+ } while (Z_OK == status);
+
+ if (Z_STREAM_END == status) {
+ /* cut processed intp off */
+ phpstr_cut(PHPSTR(s->stream.opaque), 0, PHPSTR_LEN(s->stream.opaque) - s->stream.avail_in);
+
+ /* size down */
+ *encoded_len -= s->stream.avail_out;
+ *encoded = erealloc(*encoded, *encoded_len + 1);
+ (*encoded)[*encoded_len] = '\0';
+ return SUCCESS;
+ }
+
+ STR_SET(*encoded, NULL);
+ *encoded_len = 0;
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Failed to finish deflate stream: %s", zError(status));
+ return FAILURE;
+}
+
+STATUS _http_encoding_inflate_stream_finish(http_encoding_stream *s, char **decoded, size_t *decoded_len TSRMLS_DC)
+{
+ int status;
+
+ /* inflate remaining input */
+ s->stream.next_in = PHPSTR_VAL(s->stream.opaque);
+ s->stream.avail_in = PHPSTR_LEN(s->stream.opaque);
+
+ s->stream.avail_out = *decoded_len = s->stream.avail_in << 2;
+ s->stream.next_out = *decoded = emalloc(*decoded_len);
+
+ if (Z_STREAM_END == (status = inflate(&s->stream, Z_FINISH))) {
+ /* cut processed input off */
+ phpstr_cut(PHPSTR(s->stream.opaque), 0, PHPSTR_LEN(s->stream.opaque) - s->stream.avail_in);
+
+ /* size down */
+ *decoded_len -= s->stream.avail_out;
+ *decoded = erealloc(*decoded, *decoded_len + 1);
+ (*decoded)[*decoded_len] = '\0';
+ return SUCCESS;
+ }
STR_SET(*decoded, NULL);
- http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Could not inflate data: %s", zError(status));
+ *decoded_len = 0;
+ http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Failed to finish inflate stream: %s", zError(status));
return FAILURE;
}
+void _http_encoding_deflate_stream_dtor(http_encoding_stream *s TSRMLS_DC)
+{
+ if (s) {
+ if (s->stream.opaque) {
+ phpstr_free((phpstr **) &s->stream.opaque);
+ }
+ deflateEnd(&s->stream);
+ }
+}
+
+void _http_encoding_inflate_stream_dtor(http_encoding_stream *s TSRMLS_DC)
+{
+ if (s) {
+ if (s->stream.opaque) {
+ phpstr_free((phpstr **) &s->stream.opaque);
+ }
+ inflateEnd(&s->stream);
+ }
+}
+
+void _http_encoding_deflate_stream_free(http_encoding_stream **s TSRMLS_DC)
+{
+ if (s) {
+ http_encoding_deflate_stream_dtor(*s);
+ if (*s) {
+ pefree(*s, (*s)->flags & HTTP_ENCODING_STREAM_PERSISTENT);
+ }
+ *s = NULL;
+ }
+}
+
+void _http_encoding_inflate_stream_free(http_encoding_stream **s TSRMLS_DC)
+{
+ if (s) {
+ http_encoding_inflate_stream_dtor(*s);
+ if (*s) {
+ pefree(*s, (*s)->flags & HTTP_ENCODING_STREAM_PERSISTENT);
+ }
+ *s = NULL;
+ }
+}
+
+static const char http_encoding_gzip_header[] = {
+ (const char) 0x1f, // fixed value
+ (const char) 0x8b, // fixed value
+ (const char) Z_DEFLATED, // compression algorithm
+ (const char) 0, // none of the possible flags defined by the GZIP "RFC"
+ (const char) 0, // MTIME
+ (const char) 0, // =*=
+ (const char) 0, // =*=
+ (const char) 0, // =*=
+ (const char) 0, // two possible flag values for 9 compression levels? o_O
+#ifdef PHP_WIN32
+ (const char) 0x0b // OS_CODE
+#else
+ (const char) 0x03 // OS_CODE
+#endif
+};
+
PHP_HTTP_API STATUS _http_encoding_gzencode_verify(const char *data, size_t data_len, const char **encoded, size_t *encoded_len, int error_level TSRMLS_DC)
{
size_t offset = sizeof(http_encoding_gzip_header);
return status;
}
-#define HTTP_ENCODING_STREAM_ERROR(status, tofree) \
- { \
- if (tofree) efree(tofree); \
- http_error_ex(HE_WARNING, HTTP_E_ENCODING, "GZIP stream error: %s", zError(status)); \
- return FAILURE; \
- }
-
-PHP_HTTP_API STATUS _http_encoding_stream_init(http_encoding_stream *s, int flags, int level, char **encoded, size_t *encoded_len TSRMLS_DC)
-{
- STATUS status;
- int wbits = (flags & HTTP_ENCODING_STREAM_ZLIB_HEADER) ? MAX_WBITS : -MAX_WBITS;
-
- memset(s, 0, sizeof(http_encoding_stream));
- if (Z_OK != (status = deflateInit2(&s->Z, level, Z_DEFLATED, wbits, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) {
- HTTP_ENCODING_STREAM_ERROR(status, NULL);
- }
-
- s->persistent = (flags & HTTP_ENCODING_STREAM_PERSISTENT);
- if ((s->gzip = (flags & HTTP_ENCODING_STREAM_GZIP_HEADER))) {
- s->crc = crc32(0L, Z_NULL, 0);
- *encoded_len = sizeof(http_encoding_gzip_header);
- *encoded = pemalloc(*encoded_len, s->persistent);
- memcpy(*encoded, http_encoding_gzip_header, *encoded_len);
- } else {
- *encoded_len = 0;
- *encoded = NULL;
- }
-
- return SUCCESS;
-}
-
-PHP_HTTP_API STATUS _http_encoding_stream_update(http_encoding_stream *s, const char *data, size_t data_len, char **encoded, size_t *encoded_len TSRMLS_DC)
-{
- STATUS status;
-
- *encoded_len = HTTP_ENCODING_BUFLEN(data_len);
- *encoded = pemalloc(*encoded_len, s->persistent);
-
- s->Z.next_in = (Bytef *) data;
- s->Z.avail_in = data_len;
- s->Z.next_out = (Bytef *) *encoded;
- s->Z.avail_out = *encoded_len;
-
- status = deflate(&s->Z, Z_SYNC_FLUSH);
-
- if (Z_OK != status && Z_STREAM_END != status) {
- HTTP_ENCODING_STREAM_ERROR(status, *encoded);
- }
- *encoded_len -= s->Z.avail_out;
-
- if (s->gzip) {
- s->crc = crc32(s->crc, (const Bytef *) data, data_len);
- }
-
- return SUCCESS;
-}
-
-PHP_HTTP_API STATUS _http_encoding_stream_finish(http_encoding_stream *s, char **encoded, size_t *encoded_len TSRMLS_DC)
-{
- STATUS status;
-
- *encoded_len = 1024;
- *encoded = pemalloc(*encoded_len, s->persistent);
-
- s->Z.next_out = (Bytef *) *encoded;
- s->Z.avail_out = *encoded_len;
-
- if (Z_STREAM_END != (status = deflate(&s->Z, Z_FINISH)) || Z_OK != (status = deflateEnd(&s->Z))) {
- HTTP_ENCODING_STREAM_ERROR(status, *encoded);
- }
-
- *encoded_len -= s->Z.avail_out;
- if (s->gzip) {
- if (s->Z.avail_out < 8) {
- *encoded = perealloc(*encoded, *encoded_len + 8, s->persistent);
- }
- (*encoded)[(*encoded_len)++] = (char) (s->crc & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->crc >> 8) & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->crc >> 16) & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->crc >> 24) & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->Z.total_in) & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->Z.total_in >> 8) & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->Z.total_in >> 16) & 0xFF);
- (*encoded)[(*encoded_len)++] = (char) ((s->Z.total_in >> 24) & 0xFF);
- }
-
- return SUCCESS;
-}
-
#endif /* HTTP_HAVE_ZLIB */
PHP_HTTP_API zend_bool _http_encoding_response_start(size_t content_length TSRMLS_DC)
projects / m6w6 / ext-http / blobdiff