version 1.1.1.1, 2012/02/21 23:48:05
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version 1.1.1.2, 2012/05/29 12:34:37
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| license@php.net so we can mail you a copy immediately. | |
| license@php.net so we can mail you a copy immediately. | |
+----------------------------------------------------------------------+ |
+----------------------------------------------------------------------+ |
| Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca> | |
| Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca> | |
| Stefan R๖hrich <sr@linux.de> | | | Stefan Rรถhrich <sr@linux.de> | |
| Zeev Suraski <zeev@zend.com> | |
| Zeev Suraski <zeev@zend.com> | |
| Jade Nicoletti <nicoletti@nns.ch> | |
| Jade Nicoletti <nicoletti@nns.ch> | |
|
| Michael Wallner <mike@php.net> | |
+----------------------------------------------------------------------+ |
+----------------------------------------------------------------------+ |
*/ |
*/ |
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|
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#include "php.h" |
#include "php.h" |
#include "SAPI.h" |
#include "SAPI.h" |
#include "php_ini.h" |
#include "php_ini.h" |
|
|
#include <stdlib.h> |
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#include <errno.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <fcntl.h> |
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|
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#ifdef PHP_WIN32 |
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# define O_RDONLY _O_RDONLY |
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# include "win32/param.h" |
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#else |
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# include <sys/param.h> |
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/* #include <sys/uio.h> */ |
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#endif |
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|
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#include "ext/standard/head.h" |
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#include "safe_mode.h" |
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#include "ext/standard/php_standard.h" |
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#include "ext/standard/info.h" |
#include "ext/standard/info.h" |
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#include "ext/standard/file.h" |
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#include "ext/standard/php_string.h" |
#include "php_zlib.h" |
#include "php_zlib.h" |
#include "fopen_wrappers.h" |
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|
|
#if HAVE_PWD_H | ZEND_DECLARE_MODULE_GLOBALS(zlib); |
# ifdef PHP_WIN32 | |
# include "win32/pwd.h" | |
# else | |
# include <pwd.h> | |
# endif | |
#endif | |
|
|
#if defined(HAVE_UNISTD_H) && defined(PHP_WIN32) | /* {{{ Memory management wrappers */ |
# undef HAVE_UNISTD_H | |
#endif | |
|
|
#ifdef COMPILE_DL_ZLIB | static voidpf php_zlib_alloc(voidpf opaque, uInt items, uInt size) |
# ifndef PUTS | { |
# define PUTS(a) php_printf("%s",a) | return (voidpf)safe_emalloc(items, size, 0); |
# endif | } |
# ifndef PUTC | |
# define PUTC(a) PUTS(a) | |
# endif | |
# ifndef PHPWRITE | |
# define PHPWRITE(a,n) php_write((a),(n) TSRMLS_CC) | |
# endif | |
#endif | |
|
|
/* Win32 needs some more memory */ | static void php_zlib_free(voidpf opaque, voidpf address) |
#ifdef PHP_WIN32 | { |
# define PHP_ZLIB_MODIFIER 100 | efree((void*)address); |
#else | } |
# define PHP_ZLIB_MODIFIER 1000 | /* }}} */ |
#endif | |
|
|
#define OS_CODE 0x03 /* FIXME */ | /* {{{ php_zlib_output_conflict_check() */ |
#define GZIP_HEADER_LENGTH 10 | static int php_zlib_output_conflict_check(const char *handler_name, size_t handler_name_len TSRMLS_DC) |
#define GZIP_FOOTER_LENGTH 8 | { |
| if (php_output_get_level(TSRMLS_C) > 0) { |
| if (php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME) TSRMLS_CC) |
| || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("ob_gzhandler") TSRMLS_CC) |
| || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("mb_output_handler") TSRMLS_CC) |
| || php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("URL-Rewriter") TSRMLS_CC)) { |
| return FAILURE; |
| } |
| } |
| return SUCCESS; |
| } |
| /* }}} */ |
|
|
/* True globals, no need for thread safety */ | /* {{{ php_zlib_output_encoding() */ |
static const int gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ | static int php_zlib_output_encoding(TSRMLS_D) |
| { |
| zval **enc; |
|
|
static int php_zlib_output_compression_start(TSRMLS_D); | if (!ZLIBG(compression_coding)) { |
| zend_is_auto_global(ZEND_STRL("_SERVER") TSRMLS_CC); |
| if (PG(http_globals)[TRACK_VARS_SERVER] && SUCCESS == zend_hash_find(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_ACCEPT_ENCODING", sizeof("HTTP_ACCEPT_ENCODING"), (void *) &enc)) { |
| convert_to_string(*enc); |
| if (strstr(Z_STRVAL_PP(enc), "gzip")) { |
| ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_GZIP; |
| } else if (strstr(Z_STRVAL_PP(enc), "deflate")) { |
| ZLIBG(compression_coding) = PHP_ZLIB_ENCODING_DEFLATE; |
| } |
| } |
| } |
| return ZLIBG(compression_coding); |
| } |
| /* }}} */ |
|
|
static PHP_MINIT_FUNCTION(zlib); | /* {{{ php_zlib_output_handler_ex() */ |
static PHP_MSHUTDOWN_FUNCTION(zlib); | static int php_zlib_output_handler_ex(php_zlib_context *ctx, php_output_context *output_context) |
static PHP_RINIT_FUNCTION(zlib); | { |
static PHP_MINFO_FUNCTION(zlib); | int flags = Z_SYNC_FLUSH; |
static PHP_FUNCTION(gzopen); | PHP_OUTPUT_TSRMLS(output_context); |
static PHP_FUNCTION(readgzfile); | |
static PHP_FUNCTION(gzfile); | |
static PHP_FUNCTION(gzcompress); | |
static PHP_FUNCTION(gzuncompress); | |
static PHP_FUNCTION(gzdeflate); | |
static PHP_FUNCTION(gzinflate); | |
static PHP_FUNCTION(gzencode); | |
static PHP_FUNCTION(ob_gzhandler); | |
static PHP_FUNCTION(zlib_get_coding_type); | |
|
|
/* {{{ arginfo */ | if (output_context->op & PHP_OUTPUT_HANDLER_START) { |
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzfile, 0, 0, 1) | /* start up */ |
ZEND_ARG_INFO(0, filename) | if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) { |
ZEND_ARG_INFO(0, use_include_path) | return FAILURE; |
ZEND_END_ARG_INFO() | } |
| } |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzopen, 0, 0, 2) | if (output_context->op & PHP_OUTPUT_HANDLER_CLEAN) { |
ZEND_ARG_INFO(0, filename) | /* free buffers */ |
ZEND_ARG_INFO(0, mode) | deflateEnd(&ctx->Z); |
ZEND_ARG_INFO(0, use_include_path) | |
ZEND_END_ARG_INFO() | |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_readgzfile, 0, 0, 1) | if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) { |
ZEND_ARG_INFO(0, filename) | /* discard */ |
ZEND_ARG_INFO(0, use_include_path) | return SUCCESS; |
ZEND_END_ARG_INFO() | } else { |
| /* restart */ |
| if (Z_OK != deflateInit2(&ctx->Z, ZLIBG(output_compression_level), Z_DEFLATED, ZLIBG(compression_coding), MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) { |
| return FAILURE; |
| } |
| ctx->buffer.used = 0; |
| } |
| } else { |
| if (output_context->in.used) { |
| /* append input */ |
| if (ctx->buffer.free < output_context->in.used) { |
| if (!(ctx->buffer.aptr = erealloc_recoverable(ctx->buffer.data, ctx->buffer.used + ctx->buffer.free + output_context->in.used))) { |
| deflateEnd(&ctx->Z); |
| return FAILURE; |
| } |
| ctx->buffer.data = ctx->buffer.aptr; |
| ctx->buffer.free += output_context->in.used; |
| } |
| memcpy(ctx->buffer.data + ctx->buffer.used, output_context->in.data, output_context->in.used); |
| ctx->buffer.free -= output_context->in.used; |
| ctx->buffer.used += output_context->in.used; |
| } |
| output_context->out.size = PHP_ZLIB_BUFFER_SIZE_GUESS(output_context->in.used); |
| output_context->out.data = emalloc(output_context->out.size); |
| output_context->out.free = 1; |
| output_context->out.used = 0; |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzcompress, 0, 0, 1) | ctx->Z.avail_in = ctx->buffer.used; |
ZEND_ARG_INFO(0, data) | ctx->Z.next_in = (Bytef *) ctx->buffer.data; |
ZEND_ARG_INFO(0, level) | ctx->Z.avail_out = output_context->out.size; |
ZEND_END_ARG_INFO() | ctx->Z.next_out = (Bytef *) output_context->out.data; |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzuncompress, 0, 0, 1) | if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) { |
ZEND_ARG_INFO(0, data) | flags = Z_FINISH; |
ZEND_ARG_INFO(0, length) | } else if (output_context->op & PHP_OUTPUT_HANDLER_FLUSH) { |
ZEND_END_ARG_INFO() | flags = Z_FULL_FLUSH; |
| } |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdeflate, 0, 0, 1) | switch (deflate(&ctx->Z, flags)) { |
ZEND_ARG_INFO(0, data) | case Z_OK: |
ZEND_ARG_INFO(0, level) | if (flags == Z_FINISH) { |
ZEND_END_ARG_INFO() | deflateEnd(&ctx->Z); |
| return FAILURE; |
| } |
| case Z_STREAM_END: |
| if (ctx->Z.avail_in) { |
| memmove(ctx->buffer.data, ctx->buffer.data + ctx->buffer.used - ctx->Z.avail_in, ctx->Z.avail_in); |
| } |
| ctx->buffer.free += ctx->buffer.used - ctx->Z.avail_in; |
| ctx->buffer.used = ctx->Z.avail_in; |
| output_context->out.used = output_context->out.size - ctx->Z.avail_out; |
| break; |
| default: |
| deflateEnd(&ctx->Z); |
| return FAILURE; |
| } |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzinflate, 0, 0, 1) | if (output_context->op & PHP_OUTPUT_HANDLER_FINAL) { |
ZEND_ARG_INFO(0, data) | deflateEnd(&ctx->Z); |
ZEND_ARG_INFO(0, length) | } |
ZEND_END_ARG_INFO() | } |
|
|
ZEND_BEGIN_ARG_INFO(arginfo_zlib_get_coding_type, 0) | return SUCCESS; |
ZEND_END_ARG_INFO() | } |
| /* }}} */ |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzencode, 0, 0, 1) | /* {{{ php_zlib_output_handler() */ |
ZEND_ARG_INFO(0, data) | static int php_zlib_output_handler(void **handler_context, php_output_context *output_context) |
ZEND_ARG_INFO(0, level) | { |
ZEND_ARG_INFO(0, encoding_mode) | php_zlib_context *ctx = *(php_zlib_context **) handler_context; |
ZEND_END_ARG_INFO() | PHP_OUTPUT_TSRMLS(output_context); |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_ob_gzhandler, 0, 0, 2) | if (!php_zlib_output_encoding(TSRMLS_C)) { |
ZEND_ARG_INFO(0, str) | /* "Vary: Accept-Encoding" header sent along uncompressed content breaks caching in MSIE, |
ZEND_ARG_INFO(0, mode) | so let's just send it with successfully compressed content or unless the complete |
ZEND_END_ARG_INFO() | buffer gets discarded, see http://bugs.php.net/40325; |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzputs, 0, 0, 2) | Test as follows: |
ZEND_ARG_INFO(0, fp) | +Vary: $ HTTP_ACCEPT_ENCODING=gzip ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n";' |
ZEND_ARG_INFO(0, str) | +Vary: $ HTTP_ACCEPT_ENCODING= ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n";' |
ZEND_ARG_INFO(0, length) | -Vary: $ HTTP_ACCEPT_ENCODING=gzip ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n"; ob_end_clean();' |
ZEND_END_ARG_INFO() | -Vary: $ HTTP_ACCEPT_ENCODING= ./sapi/cgi/php <<<'<?php ob_start("ob_gzhandler"); echo "foo\n"; ob_end_clean();' |
| */ |
| if (output_context->op != (PHP_OUTPUT_HANDLER_START|PHP_OUTPUT_HANDLER_CLEAN|PHP_OUTPUT_HANDLER_FINAL)) { |
| sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 1 TSRMLS_CC); |
| } |
| return FAILURE; |
| } |
|
|
ZEND_BEGIN_ARG_INFO(arginfo_gzpassthru, 0) | if (SUCCESS != php_zlib_output_handler_ex(ctx, output_context)) { |
ZEND_ARG_INFO(0, fp) | return FAILURE; |
ZEND_END_ARG_INFO() | } |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzseek, 0, 0, 2) | if (!(output_context->op & PHP_OUTPUT_HANDLER_CLEAN)) { |
ZEND_ARG_INFO(0, fp) | int flags; |
ZEND_ARG_INFO(0, offset) | |
ZEND_ARG_INFO(0, whence) | |
ZEND_END_ARG_INFO() | |
|
|
ZEND_BEGIN_ARG_INFO(arginfo_gzread, 0) | if (SUCCESS == php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_GET_FLAGS, &flags TSRMLS_CC)) { |
ZEND_ARG_INFO(0, fp) | /* only run this once */ |
ZEND_ARG_INFO(0, length) | if (!(flags & PHP_OUTPUT_HANDLER_STARTED)) { |
ZEND_END_ARG_INFO() | if (SG(headers_sent) || !ZLIBG(output_compression)) { |
| deflateEnd(&ctx->Z); |
| return FAILURE; |
| } |
| switch (ZLIBG(compression_coding)) { |
| case PHP_ZLIB_ENCODING_GZIP: |
| sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1 TSRMLS_CC); |
| break; |
| case PHP_ZLIB_ENCODING_DEFLATE: |
| sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1 TSRMLS_CC); |
| break; |
| default: |
| deflateEnd(&ctx->Z); |
| return FAILURE; |
| } |
| sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 1 TSRMLS_CC); |
| php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_IMMUTABLE, NULL TSRMLS_CC); |
| } |
| } |
| } |
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgetss, 0, 0, 1) | return SUCCESS; |
ZEND_ARG_INFO(0, fp) | } |
ZEND_ARG_INFO(0, length) | |
ZEND_ARG_INFO(0, allowable_tags) | |
ZEND_END_ARG_INFO() | |
| |
ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgets, 0, 0, 1) | |
ZEND_ARG_INFO(0, fp) | |
ZEND_ARG_INFO(0, length) | |
ZEND_END_ARG_INFO() | |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ php_zlib_functions[] | /* {{{ php_zlib_output_handler_context_init() */ |
*/ | static php_zlib_context *php_zlib_output_handler_context_init(TSRMLS_D) |
static const zend_function_entry php_zlib_functions[] = { | { |
PHP_FE(readgzfile, arginfo_readgzfile) | php_zlib_context *ctx = (php_zlib_context *) ecalloc(1, sizeof(php_zlib_context)); |
PHP_FALIAS(gzrewind, rewind, arginfo_gzpassthru) | ctx->Z.zalloc = php_zlib_alloc; |
PHP_FALIAS(gzclose, fclose, arginfo_gzpassthru) | ctx->Z.zfree = php_zlib_free; |
PHP_FALIAS(gzeof, feof, arginfo_gzpassthru) | return ctx; |
PHP_FALIAS(gzgetc, fgetc, arginfo_gzpassthru) | } |
PHP_FALIAS(gzgets, fgets, arginfo_gzgets) | |
PHP_FALIAS(gzgetss, fgetss, arginfo_gzgetss) | |
PHP_FALIAS(gzread, fread, arginfo_gzread) | |
PHP_FE(gzopen, arginfo_gzopen) | |
PHP_FALIAS(gzpassthru, fpassthru, arginfo_gzpassthru) | |
PHP_FALIAS(gzseek, fseek, arginfo_gzseek) | |
PHP_FALIAS(gztell, ftell, arginfo_gzpassthru) | |
PHP_FALIAS(gzwrite, fwrite, arginfo_gzputs) | |
PHP_FALIAS(gzputs, fwrite, arginfo_gzputs) | |
PHP_FE(gzfile, arginfo_gzfile) | |
PHP_FE(gzcompress, arginfo_gzcompress) | |
PHP_FE(gzuncompress, arginfo_gzuncompress) | |
PHP_FE(gzdeflate, arginfo_gzdeflate) | |
PHP_FE(gzinflate, arginfo_gzinflate) | |
PHP_FE(gzencode, arginfo_gzencode) | |
PHP_FE(ob_gzhandler, arginfo_ob_gzhandler) | |
PHP_FE(zlib_get_coding_type, arginfo_zlib_get_coding_type) | |
PHP_FE_END | |
}; | |
/* }}} */ |
/* }}} */ |
|
|
ZEND_DECLARE_MODULE_GLOBALS(zlib) | /* {{{ php_zlib_output_handler_context_dtor() */ |
| static void php_zlib_output_handler_context_dtor(void *opaq TSRMLS_DC) |
| { |
| php_zlib_context *ctx = (php_zlib_context *) opaq; |
|
|
/* {{{ php_zlib_module_entry | if (ctx) { |
*/ | if (ctx->buffer.data) { |
zend_module_entry php_zlib_module_entry = { | efree(ctx->buffer.data); |
STANDARD_MODULE_HEADER, | } |
"zlib", | efree(ctx); |
php_zlib_functions, | } |
PHP_MINIT(zlib), | } |
PHP_MSHUTDOWN(zlib), | |
PHP_RINIT(zlib), | |
NULL, | |
PHP_MINFO(zlib), | |
"1.1", | |
PHP_MODULE_GLOBALS(zlib), | |
NULL, | |
NULL, | |
NULL, | |
STANDARD_MODULE_PROPERTIES_EX | |
}; | |
/* }}} */ |
/* }}} */ |
|
|
#ifdef COMPILE_DL_ZLIB | /* {{{ php_zlib_output_handler_init() */ |
ZEND_GET_MODULE(php_zlib) | static php_output_handler *php_zlib_output_handler_init(const char *handler_name, size_t handler_name_len, size_t chunk_size, int flags TSRMLS_DC) |
#endif | { |
| php_output_handler *h = NULL; |
|
|
/* {{{ Memory management wrappers */ | if (!ZLIBG(output_compression)) { |
| ZLIBG(output_compression) = chunk_size ? chunk_size : PHP_OUTPUT_HANDLER_DEFAULT_SIZE; |
| } |
|
|
static voidpf php_zlib_alloc(voidpf opaque, uInt items, uInt size) | if ((h = php_output_handler_create_internal(handler_name, handler_name_len, php_zlib_output_handler, chunk_size, flags TSRMLS_CC))) { |
{ | php_output_handler_set_context(h, php_zlib_output_handler_context_init(TSRMLS_C), php_zlib_output_handler_context_dtor TSRMLS_CC); |
return (voidpf)safe_emalloc(items, size, 0); | } |
} | |
|
|
static void php_zlib_free(voidpf opaque, voidpf address) | return h; |
{ | |
efree((void*)address); | |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ OnUpdate_zlib_output_compression */ | /* {{{ php_zlib_output_compression_start() */ |
static PHP_INI_MH(OnUpdate_zlib_output_compression) | static void php_zlib_output_compression_start(TSRMLS_D) |
{ |
{ |
int status, int_value; | zval *zoh; |
char *ini_value; | php_output_handler *h; |
|
|
if (new_value == NULL) { | switch (ZLIBG(output_compression)) { |
return FAILURE; | case 0: |
| break; |
| case 1: |
| ZLIBG(output_compression) = PHP_OUTPUT_HANDLER_DEFAULT_SIZE; |
| /* break omitted intentionally */ |
| default: |
| if ( (h = php_zlib_output_handler_init(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC)) && |
| (SUCCESS == php_output_handler_start(h TSRMLS_CC))) { |
| if (ZLIBG(output_handler) && *ZLIBG(output_handler)) { |
| MAKE_STD_ZVAL(zoh); |
| ZVAL_STRING(zoh, ZLIBG(output_handler), 1); |
| php_output_start_user(zoh, ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC); |
| zval_ptr_dtor(&zoh); |
| } |
| } |
| break; |
} |
} |
|
} |
|
/* }}} */ |
|
|
if (!strncasecmp(new_value, "off", sizeof("off"))) { | /* {{{ php_zlib_encode() */ |
new_value = "0"; | static int php_zlib_encode(const char *in_buf, size_t in_len, char **out_buf, size_t *out_len, int encoding, int level TSRMLS_DC) |
new_value_length = sizeof("0"); | { |
} else if (!strncasecmp(new_value, "on", sizeof("on"))) { | int status; |
new_value = "1"; | z_stream Z; |
new_value_length = sizeof("1"); | |
} | |
|
|
int_value = zend_atoi(new_value, new_value_length); | memset(&Z, 0, sizeof(z_stream)); |
ini_value = zend_ini_string("output_handler", sizeof("output_handler"), 0); | Z.zalloc = php_zlib_alloc; |
| Z.zfree = php_zlib_free; |
|
|
if (ini_value && *ini_value && int_value) { | if (Z_OK == (status = deflateInit2(&Z, level, Z_DEFLATED, encoding, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY))) { |
php_error_docref("ref.outcontrol" TSRMLS_CC, E_CORE_ERROR, "Cannot use both zlib.output_compression and output_handler together!!"); | *out_len = PHP_ZLIB_BUFFER_SIZE_GUESS(in_len); |
return FAILURE; | *out_buf = emalloc(*out_len); |
} | |
|
|
if (stage == PHP_INI_STAGE_RUNTIME && SG(headers_sent) && !SG(request_info).no_headers) { | Z.next_in = (Bytef *) in_buf; |
php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot change zlib.output_compression - headers already sent"); | Z.next_out = (Bytef *) *out_buf; |
return FAILURE; | Z.avail_in = in_len; |
} | Z.avail_out = *out_len; |
|
|
status = OnUpdateLong(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); | status = deflate(&Z, Z_FINISH); |
| deflateEnd(&Z); |
|
|
if (stage == PHP_INI_STAGE_RUNTIME && int_value) { | if (Z_STREAM_END == status) { |
status = php_zlib_output_compression_start(TSRMLS_C); | /* size buffer down to actual length */ |
| *out_buf = erealloc(*out_buf, Z.total_out + 1); |
| (*out_buf)[*out_len = Z.total_out] = '\0'; |
| return SUCCESS; |
| } else { |
| efree(*out_buf); |
| } |
} |
} |
|
|
return status; | *out_buf = NULL; |
| *out_len = 0; |
| |
| php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); |
| return FAILURE; |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ OnUpdate_zlib_output_compression_level */ | /* {{{ php_zlib_inflate_rounds() */ |
static PHP_INI_MH(OnUpdate_zlib_output_compression_level) | static inline int php_zlib_inflate_rounds(z_stream *Z, size_t max, char **buf, size_t *len) |
{ |
{ |
OnUpdateLong(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); | int status, round = 0; |
| php_zlib_buffer buffer = {NULL, NULL, 0, 0, 0}; |
|
|
return SUCCESS; | *buf = NULL; |
} | *len = 0; |
/* }}} */ | |
|
|
/* {{{ OnUpdate_zlib_output_handler */ | buffer.size = (max && (max < Z->avail_in)) ? max : Z->avail_in; |
static PHP_INI_MH(OnUpdate_zlib_output_handler) | |
{ | |
if (stage == PHP_INI_STAGE_RUNTIME && SG(headers_sent) && !SG(request_info).no_headers) { | |
php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot change zlib.output_handler - headers already sent"); | |
return FAILURE; | |
} | |
|
|
OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); | do { |
| if ((max && (max <= buffer.used)) || !(buffer.aptr = erealloc_recoverable(buffer.data, buffer.size))) { |
| status = Z_MEM_ERROR; |
| } else { |
| buffer.data = buffer.aptr; |
| Z->avail_out = buffer.free = buffer.size - buffer.used; |
| Z->next_out = (Bytef *) buffer.data + buffer.used; |
| #if 0 |
| fprintf(stderr, "\n%3d: %3d PRIOR: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out); |
| #endif |
| status = inflate(Z, Z_NO_FLUSH); |
|
|
return SUCCESS; | buffer.used += buffer.free - Z->avail_out; |
| buffer.free = Z->avail_out; |
| #if 0 |
| fprintf(stderr, "%3d: %3d AFTER: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out); |
| #endif |
| buffer.size += (buffer.size >> 3) + 1; |
| } |
| } while ((Z_BUF_ERROR == status || (Z_OK == status && Z->avail_in)) && ++round < 100); |
| |
| if (status == Z_STREAM_END) { |
| buffer.data = erealloc(buffer.data, buffer.used + 1); |
| buffer.data[buffer.used] = '\0'; |
| *buf = buffer.data; |
| *len = buffer.used; |
| } else { |
| if (buffer.data) { |
| efree(buffer.data); |
| } |
| /* HACK: See zlib/examples/zpipe.c inf() function for explanation. */ |
| /* This works as long as this function is not used for streaming. Required to catch very short invalid data. */ |
| status = (status == Z_OK) ? Z_DATA_ERROR : status; |
| } |
| return status; |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
|
/* {{{ php_zlib_decode() */ |
|
static int php_zlib_decode(const char *in_buf, size_t in_len, char **out_buf, size_t *out_len, int encoding, size_t max_len TSRMLS_DC) |
|
{ |
|
int status = Z_DATA_ERROR; |
|
z_stream Z; |
|
|
PHP_INI_BEGIN() | memset(&Z, 0, sizeof(z_stream)); |
STD_PHP_INI_BOOLEAN("zlib.output_compression", "0", PHP_INI_ALL, OnUpdate_zlib_output_compression, output_compression, zend_zlib_globals, zlib_globals) | Z.zalloc = php_zlib_alloc; |
STD_PHP_INI_ENTRY("zlib.output_compression_level", "-1", PHP_INI_ALL, OnUpdate_zlib_output_compression_level, output_compression_level, zend_zlib_globals, zlib_globals) | Z.zfree = php_zlib_free; |
STD_PHP_INI_ENTRY("zlib.output_handler", "", PHP_INI_ALL, OnUpdate_zlib_output_handler, output_handler, zend_zlib_globals, zlib_globals) | |
PHP_INI_END() | |
|
|
/* {{{ PHP_MINIT_FUNCTION | if (in_len) { |
*/ | retry_raw_inflate: |
static PHP_MINIT_FUNCTION(zlib) | status = inflateInit2(&Z, encoding); |
{ | if (Z_OK == status) { |
php_register_url_stream_wrapper("compress.zlib", &php_stream_gzip_wrapper TSRMLS_CC); | Z.next_in = (Bytef *) in_buf; |
php_stream_filter_register_factory("zlib.*", &php_zlib_filter_factory TSRMLS_CC); | Z.avail_in = in_len + 1; /* NOTE: data must be zero terminated */ |
|
|
REGISTER_LONG_CONSTANT("FORCE_GZIP", CODING_GZIP, CONST_CS | CONST_PERSISTENT); | switch (status = php_zlib_inflate_rounds(&Z, max_len, out_buf, out_len)) { |
REGISTER_LONG_CONSTANT("FORCE_DEFLATE", CODING_DEFLATE, CONST_CS | CONST_PERSISTENT); | case Z_STREAM_END: |
| inflateEnd(&Z); |
| return SUCCESS; |
|
|
REGISTER_INI_ENTRIES(); | case Z_DATA_ERROR: |
| /* raw deflated data? */ |
| if (PHP_ZLIB_ENCODING_ANY == encoding) { |
| inflateEnd(&Z); |
| encoding = PHP_ZLIB_ENCODING_RAW; |
| goto retry_raw_inflate; |
| } |
| } |
| inflateEnd(&Z); |
| } |
| } |
|
|
return SUCCESS; | *out_buf = NULL; |
| *out_len = 0; |
| |
| php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); |
| return FAILURE; |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ PHP_RINIT_FUNCTION | /* {{{ php_zlib_cleanup_ob_gzhandler_mess() */ |
*/ | static void php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_D) |
static PHP_RINIT_FUNCTION(zlib) | |
{ |
{ |
ZLIBG(ob_gzhandler_status) = 0; | if (ZLIBG(ob_gzhandler)) { |
ZLIBG(compression_coding) = 0; | deflateEnd(&(ZLIBG(ob_gzhandler)->Z)); |
| php_zlib_output_handler_context_dtor(ZLIBG(ob_gzhandler) TSRMLS_CC); |
php_zlib_output_compression_start(TSRMLS_C); | ZLIBG(ob_gzhandler) = NULL; |
| } |
return SUCCESS; | |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ PHP_MSHUTDOWN_FUNCTION | /* {{{ proto string ob_gzhandler(string data, int flags) |
*/ | Legacy hack */ |
static PHP_MSHUTDOWN_FUNCTION(zlib) | static PHP_FUNCTION(ob_gzhandler) |
{ |
{ |
php_unregister_url_stream_wrapper("zlib" TSRMLS_CC); | char *in_str; |
php_stream_filter_unregister_factory("zlib.*" TSRMLS_CC); | int in_len; |
| long flags = 0; |
| php_output_context ctx = {0}; |
| int encoding, rv; |
|
|
UNREGISTER_INI_ENTRIES(); | /* |
| * NOTE that the real ob_gzhandler is an alias to "zlib output compression". |
| * This is a really bad hack, because |
| * - we have to initialize a php_zlib_context on demand |
| * - we have to clean it up in RSHUTDOWN |
| * - OG(running) is not set or set to any other output handler |
| * - we have to mess around with php_output_context */ |
|
|
return SUCCESS; | if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl", &in_str, &in_len, &flags)) { |
| RETURN_FALSE; |
| } |
| |
| if (!(encoding = php_zlib_output_encoding(TSRMLS_C))) { |
| RETURN_FALSE; |
| } |
| |
| if (flags & PHP_OUTPUT_HANDLER_START) { |
| switch (encoding) { |
| case PHP_ZLIB_ENCODING_GZIP: |
| sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1 TSRMLS_CC); |
| break; |
| case PHP_ZLIB_ENCODING_DEFLATE: |
| sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1 TSRMLS_CC); |
| break; |
| } |
| sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 1 TSRMLS_CC); |
| } |
| |
| if (!ZLIBG(ob_gzhandler)) { |
| ZLIBG(ob_gzhandler) = php_zlib_output_handler_context_init(TSRMLS_C); |
| } |
| |
| TSRMLS_SET_CTX(ctx.tsrm_ls); |
| ctx.op = flags; |
| ctx.in.data = in_str; |
| ctx.in.used = in_len; |
| |
| rv = php_zlib_output_handler_ex(ZLIBG(ob_gzhandler), &ctx); |
| |
| if (SUCCESS != rv) { |
| if (ctx.out.data && ctx.out.free) { |
| efree(ctx.out.data); |
| } |
| php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_C); |
| RETURN_FALSE; |
| } |
| |
| if (ctx.out.data) { |
| RETVAL_STRINGL(ctx.out.data, ctx.out.used, 1); |
| if (ctx.out.free) { |
| efree(ctx.out.data); |
| } |
| } else { |
| RETVAL_EMPTY_STRING(); |
| } |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ PHP_MINFO_FUNCTION | /* {{{ proto string zlib_get_coding_type(void) |
*/ | Returns the coding type used for output compression */ |
static PHP_MINFO_FUNCTION(zlib) | static PHP_FUNCTION(zlib_get_coding_type) |
{ |
{ |
php_info_print_table_start(); | if (zend_parse_parameters_none() == FAILURE) { |
php_info_print_table_row(2, "ZLib Support", "enabled"); | return; |
php_info_print_table_row(2, "Stream Wrapper support", "compress.zlib://"); | } |
php_info_print_table_row(2, "Stream Filter support", "zlib.inflate, zlib.deflate"); | switch (ZLIBG(compression_coding)) { |
php_info_print_table_row(2, "Compiled Version", ZLIB_VERSION); | case PHP_ZLIB_ENCODING_GZIP: |
php_info_print_table_row(2, "Linked Version", (char *) zlibVersion()); | RETURN_STRINGL("gzip", sizeof("gzip") - 1, 1); |
php_info_print_table_end(); | case PHP_ZLIB_ENCODING_DEFLATE: |
| RETURN_STRINGL("deflate", sizeof("deflate") - 1, 1); |
DISPLAY_INI_ENTRIES(); | default: |
| RETURN_FALSE; |
| } |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ proto array gzfile(string filename [, int use_include_path]) |
/* {{{ proto array gzfile(string filename [, int use_include_path]) |
Read und uncompress entire .gz-file into an array */ | Read and uncompress entire .gz-file into an array */ |
static PHP_FUNCTION(gzfile) |
static PHP_FUNCTION(gzfile) |
{ |
{ |
char *filename; |
char *filename; |
int filename_len; |
int filename_len; |
long flags = 0; | int flags = REPORT_ERRORS; |
char *slashed, buf[8192]; | char buf[8192] = {0}; |
register int i = 0; |
register int i = 0; |
int use_include_path = 0; | long use_include_path = 0; |
php_stream *stream; |
php_stream *stream; |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &filename, &filename_len, &flags) == FAILURE) { | if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p|l", &filename, &filename_len, &use_include_path)) { |
return; |
return; |
} |
} |
|
|
use_include_path = flags ? USE_PATH : 0; | if (use_include_path) { |
| flags |= USE_PATH; |
| } |
|
|
/* using a stream here is a bit more efficient (resource wise) than php_gzopen_wrapper */ |
/* using a stream here is a bit more efficient (resource wise) than php_gzopen_wrapper */ |
stream = php_stream_gzopen(NULL, filename, "rb", use_include_path | ENFORCE_SAFE_MODE | REPORT_ERRORS, NULL, NULL STREAMS_CC TSRMLS_CC); | stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC TSRMLS_CC); |
if (stream == NULL) { | |
| if (!stream) { |
/* Error reporting is already done by stream code */ |
/* Error reporting is already done by stream code */ |
RETURN_FALSE; |
RETURN_FALSE; |
} |
} |
Line 415 static PHP_FUNCTION(gzfile)
|
Line 556 static PHP_FUNCTION(gzfile)
|
array_init(return_value); |
array_init(return_value); |
|
|
/* Now loop through the file and do the magic quotes thing if needed */ |
/* Now loop through the file and do the magic quotes thing if needed */ |
memset(buf,0,sizeof(buf)); | memset(buf, 0, sizeof(buf)); |
| |
while (php_stream_gets(stream, buf, sizeof(buf) - 1) != NULL) { |
while (php_stream_gets(stream, buf, sizeof(buf) - 1) != NULL) { |
if (PG(magic_quotes_runtime)) { | add_index_string(return_value, i++, buf, 1); |
int len; | |
| |
slashed = php_addslashes(buf, 0, &len, 0 TSRMLS_CC); /* 0 = don't free source string */ | |
add_index_stringl(return_value, i++, slashed, len, 0); | |
} else { | |
add_index_string(return_value, i++, buf, 1); | |
} | |
} |
} |
php_stream_close(stream); |
php_stream_close(stream); |
} |
} |
Line 435 static PHP_FUNCTION(gzfile)
|
Line 569 static PHP_FUNCTION(gzfile)
|
Open a .gz-file and return a .gz-file pointer */ |
Open a .gz-file and return a .gz-file pointer */ |
static PHP_FUNCTION(gzopen) |
static PHP_FUNCTION(gzopen) |
{ |
{ |
char *filename, *mode; | char *filename; |
| char *mode; |
int filename_len, mode_len; |
int filename_len, mode_len; |
long flags = 0; | int flags = REPORT_ERRORS; |
php_stream *stream; |
php_stream *stream; |
int use_include_path = 0; | long use_include_path = 0; |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|l", &filename, &filename_len, &mode, &mode_len, &flags) == FAILURE) { | if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|l", &filename, &filename_len, &mode, &mode_len, &use_include_path) == FAILURE) { |
return; |
return; |
} |
} |
|
|
use_include_path = flags ? USE_PATH : 0; | if (use_include_path) { |
| flags |= USE_PATH; |
| } |
|
|
stream = php_stream_gzopen(NULL, filename, mode, use_include_path | ENFORCE_SAFE_MODE | REPORT_ERRORS, NULL, NULL STREAMS_CC TSRMLS_CC); | stream = php_stream_gzopen(NULL, filename, mode, flags, NULL, NULL STREAMS_CC TSRMLS_CC); |
|
|
if (!stream) { |
if (!stream) { |
RETURN_FALSE; |
RETURN_FALSE; |
Line 456 static PHP_FUNCTION(gzopen)
|
Line 593 static PHP_FUNCTION(gzopen)
|
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* |
|
* Read a file and write the ouput to stdout |
|
*/ |
|
/* {{{ proto int readgzfile(string filename [, int use_include_path]) |
/* {{{ proto int readgzfile(string filename [, int use_include_path]) |
Output a .gz-file */ |
Output a .gz-file */ |
static PHP_FUNCTION(readgzfile) |
static PHP_FUNCTION(readgzfile) |
{ |
{ |
char *filename; |
char *filename; |
int filename_len; |
int filename_len; |
long flags = 0; | int flags = REPORT_ERRORS; |
php_stream *stream; |
php_stream *stream; |
int size; |
int size; |
int use_include_path = 0; | long use_include_path = 0; |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &filename, &filename_len, &flags) == FAILURE) { | if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &filename, &filename_len, &use_include_path) == FAILURE) { |
return; |
return; |
} |
} |
|
|
use_include_path = flags ? USE_PATH : 0; | if (use_include_path) { |
| flags |= USE_PATH; |
| } |
|
|
stream = php_stream_gzopen(NULL, filename, "rb", use_include_path | ENFORCE_SAFE_MODE, NULL, NULL STREAMS_CC TSRMLS_CC); | stream = php_stream_gzopen(NULL, filename, "rb", flags, NULL, NULL STREAMS_CC TSRMLS_CC); |
| |
if (!stream) { |
if (!stream) { |
RETURN_FALSE; |
RETURN_FALSE; |
} |
} |
Line 486 static PHP_FUNCTION(readgzfile)
|
Line 623 static PHP_FUNCTION(readgzfile)
|
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ proto string gzcompress(string data [, int level]) | #define PHP_ZLIB_ENCODE_FUNC(name, default_encoding) \ |
Gzip-compress a string */ | static PHP_FUNCTION(name) \ |
static PHP_FUNCTION(gzcompress) | { \ |
{ | char *in_buf, *out_buf; \ |
int data_len, status; | int in_len; \ |
long level = Z_DEFAULT_COMPRESSION; | size_t out_len; \ |
unsigned long l2; | long level = -1; \ |
char *data, *s2; | long encoding = default_encoding; \ |
| if (default_encoding) { \ |
| if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|ll", &in_buf, &in_len, &level, &encoding)) { \ |
| return; \ |
| } \ |
| } else { \ |
| if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|l", &in_buf, &in_len, &encoding, &level)) { \ |
| return; \ |
| } \ |
| } \ |
| if (level < -1 || level > 9) { \ |
| php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level (%ld) must be within -1..9", level); \ |
| RETURN_FALSE; \ |
| } \ |
| switch (encoding) { \ |
| case PHP_ZLIB_ENCODING_RAW: \ |
| case PHP_ZLIB_ENCODING_GZIP: \ |
| case PHP_ZLIB_ENCODING_DEFLATE: \ |
| break; \ |
| default: \ |
| php_error_docref(NULL TSRMLS_CC, E_WARNING, "encoding mode must be either ZLIB_ENCODING_RAW, ZLIB_ENCODING_GZIP or ZLIB_ENCODING_DEFLATE"); \ |
| RETURN_FALSE; \ |
| } \ |
| if (SUCCESS != php_zlib_encode(in_buf, in_len, &out_buf, &out_len, encoding, level TSRMLS_CC)) { \ |
| RETURN_FALSE; \ |
| } \ |
| RETURN_STRINGL(out_buf, out_len, 0); \ |
| } |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &data, &data_len, &level) == FAILURE) { | #define PHP_ZLIB_DECODE_FUNC(name, encoding) \ |
return; | static PHP_FUNCTION(name) \ |
} | { \ |
| char *in_buf, *out_buf; \ |
| int in_len; \ |
| size_t out_len; \ |
| long max_len = 0; \ |
| if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &in_buf, &in_len, &max_len)) { \ |
| return; \ |
| } \ |
| if (max_len < 0) { \ |
| php_error_docref(NULL TSRMLS_CC, E_WARNING, "length (%ld) must be greater or equal zero", max_len); \ |
| RETURN_FALSE; \ |
| } \ |
| if (SUCCESS != php_zlib_decode(in_buf, in_len, &out_buf, &out_len, encoding, max_len TSRMLS_CC)) { \ |
| RETURN_FALSE; \ |
| } \ |
| RETURN_STRINGL(out_buf, out_len, 0); \ |
| } |
|
|
if ((level < -1) || (level > 9)) { | /* {{{ proto binary zlib_encode(binary data, int encoding[, int level = -1]) |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level (%ld) must be within -1..9", level); | Compress data with the specified encoding */ |
RETURN_FALSE; | PHP_ZLIB_ENCODE_FUNC(zlib_encode, 0); |
} | /* }}} */ |
|
|
l2 = data_len + (data_len / PHP_ZLIB_MODIFIER) + 15 + 1; /* room for \0 */ | /* {{{ proto binary zlib_decode(binary data[, int max_decoded_len]) |
s2 = (char *) emalloc(l2); | Uncompress any raw/gzip/zlib encoded data */ |
if (!s2) { | PHP_ZLIB_DECODE_FUNC(zlib_decode, PHP_ZLIB_ENCODING_ANY); |
RETURN_FALSE; | |
} | |
|
|
if (level >= 0) { | /* NOTE: The naming of these userland functions was quite unlucky */ |
status = compress2(s2, &l2, data, data_len, level); | /* {{{ proto binary gzdeflate(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_RAW]) |
} else { | Encode data with the raw deflate encoding */ |
status = compress(s2, &l2, data, data_len); | PHP_ZLIB_ENCODE_FUNC(gzdeflate, PHP_ZLIB_ENCODING_RAW); |
} | |
| |
if (status == Z_OK) { | |
s2 = erealloc(s2, l2 + 1); | |
s2[l2] = '\0'; | |
RETURN_STRINGL(s2, l2, 0); | |
} else { | |
efree(s2); | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
} | |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ proto string gzuncompress(string data [, int length]) | /* {{{ proto binary gzencode(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_GZIP]) |
Unzip a gzip-compressed string */ | Encode data with the gzip encoding */ |
static PHP_FUNCTION(gzuncompress) | PHP_ZLIB_ENCODE_FUNC(gzencode, PHP_ZLIB_ENCODING_GZIP); |
{ | |
int data_len, status; | |
unsigned int factor=1, maxfactor=16; | |
long limit = 0; | |
unsigned long plength=0, length; | |
char *data, *s1=NULL, *s2=NULL; | |
| |
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &data, &data_len, &limit) == FAILURE) { | |
return; | |
} | |
| |
if (limit < 0) { | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "length (%ld) must be greater or equal zero", limit); | |
RETURN_FALSE; | |
} | |
plength = limit; | |
| |
/* | |
zlib::uncompress() wants to know the output data length | |
if none was given as a parameter | |
we try from input length * 2 up to input length * 2^15 | |
doubling it whenever it wasn't big enough | |
that should be eneugh for all real life cases | |
*/ | |
do { | |
length = plength ? plength : (unsigned long)data_len * (1 << factor++); | |
s2 = (char *) erealloc(s1, length); | |
status = uncompress(s2, &length, data, data_len); | |
s1 = s2; | |
} while ((status == Z_BUF_ERROR) && (!plength) && (factor < maxfactor)); | |
| |
if (status == Z_OK) { | |
s2 = erealloc(s2, length + 1); /* space for \0 */ | |
s2[ length ] = '\0'; | |
RETURN_STRINGL(s2, length, 0); | |
} else { | |
efree(s2); | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
} | |
/* }}} */ |
/* }}} */ |
|
/* {{{ proto binary gzcompress(binary data[, int level = -1[, int encoding = ZLIB_ENCODING_DEFLATE]) |
|
Encode data with the zlib encoding */ |
|
PHP_ZLIB_ENCODE_FUNC(gzcompress, PHP_ZLIB_ENCODING_DEFLATE); |
|
/* }}} */ |
|
/* {{{ proto binary gzinflate(binary data[, int max_decoded_len]) |
|
Decode raw deflate encoded data */ |
|
PHP_ZLIB_DECODE_FUNC(gzinflate, PHP_ZLIB_ENCODING_RAW); |
|
/* }}} */ |
|
/* {{{ proto binary gzdecode(binary data[, int max_decoded_len]) |
|
Decode gzip encoded data */ |
|
PHP_ZLIB_DECODE_FUNC(gzdecode, PHP_ZLIB_ENCODING_GZIP); |
|
/* }}} */ |
|
/* {{{ proto binary gzuncompress(binary data[, int max_decoded_len]) |
|
Decode zlib encoded data */ |
|
PHP_ZLIB_DECODE_FUNC(gzuncompress, PHP_ZLIB_ENCODING_DEFLATE); |
|
/* }}} */ |
|
|
/* {{{ proto string gzdeflate(string data [, int level]) | #ifdef COMPILE_DL_ZLIB |
Gzip-compress a string */ | ZEND_GET_MODULE(php_zlib) |
static PHP_FUNCTION(gzdeflate) | #endif |
{ | |
int data_len,status; | |
long level = Z_DEFAULT_COMPRESSION; | |
z_stream stream; | |
char *data, *s2; | |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &data, &data_len, &level) == FAILURE) { | /* {{{ arginfo */ |
return; | ZEND_BEGIN_ARG_INFO_EX(arginfo_ob_gzhandler, 0, 0, 2) |
} | ZEND_ARG_INFO(0, data) |
| ZEND_ARG_INFO(0, flags) |
| ZEND_END_ARG_INFO() |
|
|
if ((level < -1) || (level > 9)) { | ZEND_BEGIN_ARG_INFO(arginfo_zlib_get_coding_type, 0) |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level (%ld) must be within -1..9", level); | ZEND_END_ARG_INFO() |
RETURN_FALSE; | |
} | |
|
|
stream.data_type = Z_ASCII; | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzfile, 0, 0, 1) |
stream.zalloc = php_zlib_alloc; | ZEND_ARG_INFO(0, filename) |
stream.zfree = php_zlib_free; | ZEND_ARG_INFO(0, use_include_path) |
stream.opaque = (voidpf) Z_NULL; | ZEND_END_ARG_INFO() |
|
|
stream.next_in = (Bytef *) data; | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzopen, 0, 0, 2) |
stream.avail_in = data_len; | ZEND_ARG_INFO(0, filename) |
| ZEND_ARG_INFO(0, mode) |
| ZEND_ARG_INFO(0, use_include_path) |
| ZEND_END_ARG_INFO() |
|
|
stream.avail_out = stream.avail_in + (stream.avail_in / PHP_ZLIB_MODIFIER) + 15 + 1; /* room for \0 */ | ZEND_BEGIN_ARG_INFO_EX(arginfo_readgzfile, 0, 0, 1) |
| ZEND_ARG_INFO(0, filename) |
| ZEND_ARG_INFO(0, use_include_path) |
| ZEND_END_ARG_INFO() |
|
|
s2 = (char *) emalloc(stream.avail_out); | ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_encode, 0, 0, 2) |
if (!s2) { | ZEND_ARG_INFO(0, data) |
RETURN_FALSE; | ZEND_ARG_INFO(0, encoding) |
} | ZEND_ARG_INFO(0, level) |
| ZEND_END_ARG_INFO() |
|
|
stream.next_out = s2; | ZEND_BEGIN_ARG_INFO_EX(arginfo_zlib_decode, 0, 0, 1) |
| ZEND_ARG_INFO(0, data) |
| ZEND_ARG_INFO(0, max_decoded_len) |
| ZEND_END_ARG_INFO() |
|
|
/* init with -MAX_WBITS disables the zlib internal headers */ | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdeflate, 0, 0, 1) |
status = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS, MAX_MEM_LEVEL, 0); | ZEND_ARG_INFO(0, data) |
if (status == Z_OK) { | ZEND_ARG_INFO(0, level) |
status = deflate(&stream, Z_FINISH); | ZEND_ARG_INFO(0, encoding) |
if (status != Z_STREAM_END) { | ZEND_END_ARG_INFO() |
deflateEnd(&stream); | |
if (status == Z_OK) { | |
status = Z_BUF_ERROR; | |
} | |
} else { | |
status = deflateEnd(&stream); | |
} | |
} | |
|
|
if (status == Z_OK) { | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzencode, 0, 0, 1) |
s2 = erealloc(s2,stream.total_out + 1); /* resize to buffer to the "right" size */ | ZEND_ARG_INFO(0, data) |
s2[ stream.total_out ] = '\0'; | ZEND_ARG_INFO(0, level) |
RETURN_STRINGL(s2, stream.total_out, 0); | ZEND_ARG_INFO(0, encoding) |
} else { | ZEND_END_ARG_INFO() |
efree(s2); | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
} | |
/* }}} */ | |
|
|
/* {{{ proto string gzinflate(string data [, int length]) | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzcompress, 0, 0, 1) |
Unzip a gzip-compressed string */ | ZEND_ARG_INFO(0, data) |
static PHP_FUNCTION(gzinflate) | ZEND_ARG_INFO(0, level) |
{ | ZEND_ARG_INFO(0, encoding) |
int data_len, status; | ZEND_END_ARG_INFO() |
unsigned int factor=1, maxfactor=16; | |
long limit = 0; | |
unsigned long plength=0, length; | |
char *data, *s1=NULL, *s2=NULL; | |
z_stream stream; | |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &data, &data_len, &limit) == FAILURE) { | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzinflate, 0, 0, 1) |
return; | ZEND_ARG_INFO(0, data) |
} | ZEND_ARG_INFO(0, max_decoded_len) |
| ZEND_END_ARG_INFO() |
|
|
if (!data_len) { | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzdecode, 0, 0, 1) |
RETURN_FALSE; | ZEND_ARG_INFO(0, data) |
} | ZEND_ARG_INFO(0, max_decoded_len) |
| ZEND_END_ARG_INFO() |
|
|
if (limit < 0) { | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzuncompress, 0, 0, 1) |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "length (%ld) must be greater or equal zero", limit); | ZEND_ARG_INFO(0, data) |
RETURN_FALSE; | ZEND_ARG_INFO(0, max_decoded_len) |
} | ZEND_END_ARG_INFO() |
plength = limit; | |
|
|
stream.zalloc = php_zlib_alloc; | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzputs, 0, 0, 2) |
stream.zfree = php_zlib_free; | ZEND_ARG_INFO(0, fp) |
stream.opaque = Z_NULL; | ZEND_ARG_INFO(0, str) |
stream.avail_in = data_len + 1; /* there is room for \0 */ | ZEND_ARG_INFO(0, length) |
stream.next_in = (Bytef *) data; | ZEND_END_ARG_INFO() |
stream.total_out = 0; | |
|
|
/* init with -MAX_WBITS disables the zlib internal headers */ | ZEND_BEGIN_ARG_INFO(arginfo_gzpassthru, 0) |
status = inflateInit2(&stream, -MAX_WBITS); | ZEND_ARG_INFO(0, fp) |
if (status != Z_OK) { | ZEND_END_ARG_INFO() |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
|
|
/* | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzseek, 0, 0, 2) |
stream.avail_out wants to know the output data length | ZEND_ARG_INFO(0, fp) |
if none was given as a parameter | ZEND_ARG_INFO(0, offset) |
we try from input length * 2 up to input length * 2^15 | ZEND_ARG_INFO(0, whence) |
doubling it whenever it wasn't big enough | ZEND_END_ARG_INFO() |
that should be enaugh for all real life cases | |
*/ | |
do { | |
length = plength ? plength : (unsigned long)data_len * (1 << factor++); | |
s2 = (char *) erealloc(s1, length); | |
|
|
if (!s2) { | ZEND_BEGIN_ARG_INFO(arginfo_gzread, 0) |
if (s1) { | ZEND_ARG_INFO(0, fp) |
efree(s1); | ZEND_ARG_INFO(0, length) |
} | ZEND_END_ARG_INFO() |
inflateEnd(&stream); | |
RETURN_FALSE; | |
} | |
s1 = s2; | |
|
|
stream.next_out = (Bytef *) &s2[stream.total_out]; | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgetss, 0, 0, 1) |
stream.avail_out = length - stream.total_out; | ZEND_ARG_INFO(0, fp) |
status = inflate(&stream, Z_NO_FLUSH); | ZEND_ARG_INFO(0, length) |
| ZEND_ARG_INFO(0, allowable_tags) |
| ZEND_END_ARG_INFO() |
|
|
} while ((Z_BUF_ERROR == status || (Z_OK == status && stream.avail_in)) && !plength && factor < maxfactor); | ZEND_BEGIN_ARG_INFO_EX(arginfo_gzgets, 0, 0, 1) |
| ZEND_ARG_INFO(0, fp) |
| ZEND_ARG_INFO(0, length) |
| ZEND_END_ARG_INFO() |
| /* }}} */ |
|
|
inflateEnd(&stream); | /* {{{ php_zlib_functions[] */ |
| static const zend_function_entry php_zlib_functions[] = { |
if ((plength && Z_OK == status) || factor >= maxfactor) { | PHP_FE(readgzfile, arginfo_readgzfile) |
status = Z_MEM_ERROR; | PHP_FALIAS(gzrewind, rewind, arginfo_gzpassthru) |
} | PHP_FALIAS(gzclose, fclose, arginfo_gzpassthru) |
| PHP_FALIAS(gzeof, feof, arginfo_gzpassthru) |
if (Z_STREAM_END == status || Z_OK == status) { | PHP_FALIAS(gzgetc, fgetc, arginfo_gzpassthru) |
s2 = erealloc(s2, stream.total_out + 1); /* room for \0 */ | PHP_FALIAS(gzgets, fgets, arginfo_gzgets) |
s2[ stream.total_out ] = '\0'; | PHP_FALIAS(gzgetss, fgetss, arginfo_gzgetss) |
RETURN_STRINGL(s2, stream.total_out, 0); | PHP_FALIAS(gzread, fread, arginfo_gzread) |
} else { | PHP_FE(gzopen, arginfo_gzopen) |
efree(s2); | PHP_FALIAS(gzpassthru, fpassthru, arginfo_gzpassthru) |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | PHP_FALIAS(gzseek, fseek, arginfo_gzseek) |
RETURN_FALSE; | PHP_FALIAS(gztell, ftell, arginfo_gzpassthru) |
} | PHP_FALIAS(gzwrite, fwrite, arginfo_gzputs) |
} | PHP_FALIAS(gzputs, fwrite, arginfo_gzputs) |
| PHP_FE(gzfile, arginfo_gzfile) |
| PHP_FE(gzcompress, arginfo_gzcompress) |
| PHP_FE(gzuncompress, arginfo_gzuncompress) |
| PHP_FE(gzdeflate, arginfo_gzdeflate) |
| PHP_FE(gzinflate, arginfo_gzinflate) |
| PHP_FE(gzencode, arginfo_gzencode) |
| PHP_FE(gzdecode, arginfo_gzdecode) |
| PHP_FE(zlib_encode, arginfo_zlib_encode) |
| PHP_FE(zlib_decode, arginfo_zlib_decode) |
| PHP_FE(zlib_get_coding_type, arginfo_zlib_get_coding_type) |
| PHP_FE(ob_gzhandler, arginfo_ob_gzhandler) |
| PHP_FE_END |
| }; |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ proto string zlib_get_coding_type(void) | /* {{{ OnUpdate_zlib_output_compression */ |
Returns the coding type used for output compression */ | static PHP_INI_MH(OnUpdate_zlib_output_compression) |
static PHP_FUNCTION(zlib_get_coding_type) | |
{ |
{ |
switch (ZLIBG(compression_coding)) { | int status, int_value; |
case CODING_GZIP: | char *ini_value; |
RETURN_STRINGL("gzip", sizeof("gzip") - 1, 1); | |
|
|
case CODING_DEFLATE: | if (new_value == NULL) { |
RETURN_STRINGL("deflate", sizeof("deflate") - 1, 1); | return FAILURE; |
} |
} |
|
|
RETURN_FALSE; | if (!strncasecmp(new_value, "off", sizeof("off"))) { |
} | new_value = "0"; |
| new_value_length = sizeof("0"); |
/* {{{ php_do_deflate | } else if (!strncasecmp(new_value, "on", sizeof("on"))) { |
*/ | new_value = "1"; |
static int php_do_deflate(uint str_length, Bytef **p_buffer, uint *p_buffer_len, zend_bool do_start, zend_bool do_end TSRMLS_DC) | new_value_length = sizeof("1"); |
{ | |
Bytef *buffer; | |
uInt prev_outlen, outlen; | |
int err; | |
int start_offset = ((do_start && ZLIBG(compression_coding) == CODING_GZIP) ? 10 : 0); | |
int end_offset = (do_end ? 8 : 0); | |
| |
outlen = (uint) (str_length + (str_length / PHP_ZLIB_MODIFIER) + 12 + 1); /* leave some room for a trailing \0 */ | |
if ((outlen + start_offset + end_offset) > *p_buffer_len) { | |
buffer = (Bytef *) emalloc(outlen + start_offset + end_offset); | |
} else { | |
buffer = *p_buffer; | |
} |
} |
|
|
ZLIBG(stream).next_out = buffer + start_offset; | int_value = zend_atoi(new_value, new_value_length); |
ZLIBG(stream).avail_out = outlen; | ini_value = zend_ini_string("output_handler", sizeof("output_handler"), 0); |
|
|
err = deflate(&ZLIBG(stream), Z_SYNC_FLUSH); | if (ini_value && *ini_value && int_value) { |
while (err == Z_OK && !ZLIBG(stream).avail_out) { | php_error_docref("ref.outcontrol" TSRMLS_CC, E_CORE_ERROR, "Cannot use both zlib.output_compression and output_handler together!!"); |
prev_outlen = outlen; | return FAILURE; |
outlen *= 3; | |
if ((outlen + start_offset + end_offset) > *p_buffer_len) { | |
buffer = erealloc(buffer, outlen + start_offset + end_offset); | |
} | |
| |
ZLIBG(stream).next_out = buffer + start_offset + prev_outlen; | |
ZLIBG(stream).avail_out = prev_outlen * 2; | |
| |
err = deflate(&ZLIBG(stream), Z_SYNC_FLUSH); | |
} |
} |
| if (stage == PHP_INI_STAGE_RUNTIME) { |
if (do_end) { | status = php_output_get_status(TSRMLS_C); |
err = deflate(&ZLIBG(stream), Z_FINISH); | if (status & PHP_OUTPUT_SENT) { |
buffer[outlen + start_offset - ZLIBG(stream).avail_out] = '\0'; | php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot change zlib.output_compression - headers already sent"); |
} | return FAILURE; |
| } else if ((status & PHP_OUTPUT_WRITTEN) && int_value) { |
*p_buffer = buffer; | php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot enable zlib.output_compression - there has already been output"); |
*p_buffer_len = outlen - ZLIBG(stream).avail_out; | return FAILURE; |
| |
return err; | |
} | |
/* }}} */ | |
| |
/* {{{ php_deflate_string | |
*/ | |
static int php_deflate_string(const char *str, uint str_length, char **newstr, uint *new_length, zend_bool do_start, zend_bool do_end TSRMLS_DC) | |
{ | |
int err; | |
| |
if (do_start) { | |
ZLIBG(stream).zalloc = php_zlib_alloc; | |
ZLIBG(stream).zfree = php_zlib_free; | |
ZLIBG(stream).opaque = Z_NULL; | |
| |
switch (ZLIBG(compression_coding)) { | |
case CODING_GZIP: | |
/* windowBits is passed < 0 to suppress zlib header & trailer */ | |
if (deflateInit2(&ZLIBG(stream), ZLIBG(output_compression_level), Z_DEFLATED, -MAX_WBITS, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK) { | |
/* TODO: print out error */ | |
return FAILURE; | |
} | |
| |
ZLIBG(crc) = crc32(0L, Z_NULL, 0); | |
break; | |
| |
case CODING_DEFLATE: | |
if (deflateInit(&ZLIBG(stream), ZLIBG(output_compression_level)) != Z_OK) { | |
/* TODO: print out error */ | |
return FAILURE; | |
} | |
break; | |
} |
} |
} |
} |
|
|
ZLIBG(stream).next_in = (Bytef *) str; | status = OnUpdateLong(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); |
ZLIBG(stream).avail_in = (uInt) str_length; | |
|
|
if (ZLIBG(compression_coding) == CODING_GZIP) { | if (stage == PHP_INI_STAGE_RUNTIME && int_value) { |
ZLIBG(crc) = crc32(ZLIBG(crc), (const Bytef *) str, str_length); | if (!php_output_handler_started(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME) TSRMLS_CC)) { |
} | php_zlib_output_compression_start(TSRMLS_C); |
| |
err = php_do_deflate(str_length, (Bytef **) newstr, new_length, do_start, do_end TSRMLS_CC); | |
/* TODO: error handling (err may be Z_STREAM_ERROR, Z_BUF_ERROR, ?) */ | |
| |
if (do_start && ZLIBG(compression_coding) == CODING_GZIP) { | |
/* Write a very simple .gz header: */ | |
(*newstr)[0] = gz_magic[0]; | |
(*newstr)[1] = gz_magic[1]; | |
(*newstr)[2] = Z_DEFLATED; | |
(*newstr)[3] = (*newstr)[4] = (*newstr)[5] = (*newstr)[6] = (*newstr)[7] = (*newstr)[8] = 0; | |
(*newstr)[9] = OS_CODE; | |
*new_length += 10; | |
} | |
if (do_end) { | |
if (ZLIBG(compression_coding) == CODING_GZIP) { | |
char *trailer = (*newstr) + (*new_length); | |
| |
/* write crc & stream.total_in in LSB order */ | |
trailer[0] = (char) ZLIBG(crc) & 0xFF; | |
trailer[1] = (char) (ZLIBG(crc) >> 8) & 0xFF; | |
trailer[2] = (char) (ZLIBG(crc) >> 16) & 0xFF; | |
trailer[3] = (char) (ZLIBG(crc) >> 24) & 0xFF; | |
trailer[4] = (char) ZLIBG(stream).total_in & 0xFF; | |
trailer[5] = (char) (ZLIBG(stream).total_in >> 8) & 0xFF; | |
trailer[6] = (char) (ZLIBG(stream).total_in >> 16) & 0xFF; | |
trailer[7] = (char) (ZLIBG(stream).total_in >> 24) & 0xFF; | |
trailer[8] = '\0'; | |
*new_length += 8; | |
} |
} |
deflateEnd(&ZLIBG(stream)); |
|
} |
} |
|
|
return SUCCESS; | return status; |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ proto string gzencode(string data [, int level [, int encoding_mode]]) | /* {{{ OnUpdate_zlib_output_handler */ |
GZ encode a string */ | static PHP_INI_MH(OnUpdate_zlib_output_handler) |
static PHP_FUNCTION(gzencode) | |
{ |
{ |
char *data, *s2; | if (stage == PHP_INI_STAGE_RUNTIME && (php_output_get_status(TSRMLS_C) & PHP_OUTPUT_SENT)) { |
int data_len; | php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "Cannot change zlib.output_handler - headers already sent"); |
long level = Z_DEFAULT_COMPRESSION, coding = CODING_GZIP; | return FAILURE; |
int status; | |
z_stream stream; | |
| |
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|ll", &data, &data_len, &level, &coding) == FAILURE) { | |
return; | |
} |
} |
|
|
if ((level < -1) || (level > 9)) { | return OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level(%ld) must be within -1..9", level); | } |
RETURN_FALSE; | /* }}} */ |
} | |
| /* {{{ INI */ |
| PHP_INI_BEGIN() |
| STD_PHP_INI_BOOLEAN("zlib.output_compression", "0", PHP_INI_ALL, OnUpdate_zlib_output_compression, output_compression, zend_zlib_globals, zlib_globals) |
| STD_PHP_INI_ENTRY("zlib.output_compression_level", "-1", PHP_INI_ALL, OnUpdateLong, output_compression_level, zend_zlib_globals, zlib_globals) |
| STD_PHP_INI_ENTRY("zlib.output_handler", "", PHP_INI_ALL, OnUpdate_zlib_output_handler, output_handler, zend_zlib_globals, zlib_globals) |
| PHP_INI_END() |
|
|
if ((coding != CODING_GZIP) && (coding != CODING_DEFLATE)) { | /* }}} */ |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "encoding mode must be FORCE_GZIP or FORCE_DEFLATE"); | |
RETURN_FALSE; | |
} | |
|
|
stream.zalloc = php_zlib_alloc; | /* {{{ PHP_MINIT_FUNCTION */ |
stream.zfree = php_zlib_free; | static PHP_MINIT_FUNCTION(zlib) |
stream.opaque = Z_NULL; | { |
| php_register_url_stream_wrapper("compress.zlib", &php_stream_gzip_wrapper TSRMLS_CC); |
| php_stream_filter_register_factory("zlib.*", &php_zlib_filter_factory TSRMLS_CC); |
|
|
stream.next_in = (Bytef *) data; | php_output_handler_alias_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_handler_init TSRMLS_CC); |
stream.avail_in = data_len; | php_output_handler_conflict_register(ZEND_STRL("ob_gzhandler"), php_zlib_output_conflict_check TSRMLS_CC); |
| php_output_handler_conflict_register(ZEND_STRL(PHP_ZLIB_OUTPUT_HANDLER_NAME), php_zlib_output_conflict_check TSRMLS_CC); |
|
|
stream.avail_out = stream.avail_in + (stream.avail_in / PHP_ZLIB_MODIFIER) + 15 + 1; /* room for \0 */ | REGISTER_LONG_CONSTANT("FORCE_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT); |
s2 = (char *) emalloc(stream.avail_out + GZIP_HEADER_LENGTH + (coding == CODING_GZIP ? GZIP_FOOTER_LENGTH : 0)); | REGISTER_LONG_CONSTANT("FORCE_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT); |
|
|
/* add gzip file header */ | REGISTER_LONG_CONSTANT("ZLIB_ENCODING_RAW", PHP_ZLIB_ENCODING_RAW, CONST_CS|CONST_PERSISTENT); |
s2[0] = gz_magic[0]; | REGISTER_LONG_CONSTANT("ZLIB_ENCODING_GZIP", PHP_ZLIB_ENCODING_GZIP, CONST_CS|CONST_PERSISTENT); |
s2[1] = gz_magic[1]; | REGISTER_LONG_CONSTANT("ZLIB_ENCODING_DEFLATE", PHP_ZLIB_ENCODING_DEFLATE, CONST_CS|CONST_PERSISTENT); |
s2[2] = Z_DEFLATED; | REGISTER_INI_ENTRIES(); |
s2[3] = s2[4] = s2[5] = s2[6] = s2[7] = s2[8] = 0; /* time set to 0 */ | return SUCCESS; |
s2[9] = OS_CODE; | |
| |
stream.next_out = &(s2[GZIP_HEADER_LENGTH]); | |
| |
switch (coding) { | |
case CODING_GZIP: | |
/* windowBits is passed < 0 to suppress zlib header & trailer */ | |
if ((status = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) != Z_OK) { | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
| |
break; | |
case CODING_DEFLATE: | |
if ((status = deflateInit(&stream, level)) != Z_OK) { | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
break; | |
} | |
| |
status = deflate(&stream, Z_FINISH); | |
if (status != Z_STREAM_END) { | |
deflateEnd(&stream); | |
if (status == Z_OK) { | |
status = Z_BUF_ERROR; | |
} | |
} else { | |
status = deflateEnd(&stream); | |
} | |
| |
if (status == Z_OK) { | |
/* resize to buffer to the "right" size */ | |
s2 = erealloc(s2, stream.total_out + GZIP_HEADER_LENGTH + (coding == CODING_GZIP ? GZIP_FOOTER_LENGTH : 0) + 1); | |
| |
if (coding == CODING_GZIP) { | |
char *trailer = s2 + (stream.total_out + GZIP_HEADER_LENGTH); | |
uLong crc = crc32(0L, Z_NULL, 0); | |
| |
crc = crc32(crc, (const Bytef *) data, data_len); | |
| |
/* write crc & stream.total_in in LSB order */ | |
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) stream.total_in & 0xFF; | |
trailer[5] = (char) (stream.total_in >> 8) & 0xFF; | |
trailer[6] = (char) (stream.total_in >> 16) & 0xFF; | |
trailer[7] = (char) (stream.total_in >> 24) & 0xFF; | |
trailer[8] = '\0'; | |
} else { | |
s2[stream.total_out + GZIP_HEADER_LENGTH + (coding == CODING_GZIP ? GZIP_FOOTER_LENGTH : 0)] = '\0'; | |
} | |
RETURN_STRINGL(s2, stream.total_out + GZIP_HEADER_LENGTH + (coding == CODING_GZIP ? GZIP_FOOTER_LENGTH : 0), 0); | |
} else { | |
efree(s2); | |
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", zError(status)); | |
RETURN_FALSE; | |
} | |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ php_ob_gzhandler_check | /* {{{ PHP_MSHUTDOWN_FUNCTION */ |
*/ | static PHP_MSHUTDOWN_FUNCTION(zlib) |
int php_ob_gzhandler_check(TSRMLS_D) | |
{ |
{ |
/* check for wrong usages */ | php_unregister_url_stream_wrapper("zlib" TSRMLS_CC); |
if (OG(ob_nesting_level > 0)) { | php_stream_filter_unregister_factory("zlib.*" TSRMLS_CC); |
if (php_ob_handler_used("ob_gzhandler" TSRMLS_CC)) { | |
php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "output handler 'ob_gzhandler' cannot be used twice"); | |
return FAILURE; | |
} | |
if (php_ob_handler_used("mb_output_handler" TSRMLS_CC)) { | |
php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "output handler 'ob_gzhandler' cannot be used after 'mb_output_handler'"); | |
return FAILURE; | |
} | |
if (php_ob_handler_used("URL-Rewriter" TSRMLS_CC)) { | |
php_error_docref("ref.outcontrol" TSRMLS_CC, E_WARNING, "output handler 'ob_gzhandler' cannot be used after 'URL-Rewriter'"); | |
return FAILURE; | |
} | |
if (php_ob_init_conflict("ob_gzhandler", "zlib output compression" TSRMLS_CC)) { | |
return FAILURE; | |
} | |
} | |
|
|
|
UNREGISTER_INI_ENTRIES(); |
|
|
return SUCCESS; |
return SUCCESS; |
} |
} |
|
|
/* }}} */ |
/* }}} */ |
|
|
/* {{{ proto string ob_gzhandler(string str, int mode) | /* {{{ PHP_RINIT_FUNCTION */ |
Encode str based on accept-encoding setting - designed to be called from ob_start() */ | static PHP_RINIT_FUNCTION(zlib) |
static PHP_FUNCTION(ob_gzhandler) | |
{ |
{ |
char *string; | ZLIBG(compression_coding) = 0; |
int string_len; | |
long mode; | |
zval **a_encoding; | |
zend_bool return_original = 0; | |
zend_bool do_start, do_end; | |
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl", &string, &string_len, &mode) == FAILURE) { | php_zlib_output_compression_start(TSRMLS_C); |
return; | |
} | |
|
|
if (ZLIBG(ob_gzhandler_status) == -1) { | return SUCCESS; |
RETURN_FALSE; | |
} | |
| |
zend_is_auto_global("_SERVER", sizeof("_SERVER")-1 TSRMLS_CC); | |
| |
if (!PG(http_globals)[TRACK_VARS_SERVER] | |
|| zend_hash_find(PG(http_globals)[TRACK_VARS_SERVER]->value.ht, "HTTP_ACCEPT_ENCODING", sizeof("HTTP_ACCEPT_ENCODING"), (void **) &a_encoding) == FAILURE | |
) { | |
ZLIBG(ob_gzhandler_status) = -1; | |
RETURN_FALSE; | |
} | |
| |
convert_to_string_ex(a_encoding); | |
if (php_memnstr(Z_STRVAL_PP(a_encoding), "gzip", 4, Z_STRVAL_PP(a_encoding) + Z_STRLEN_PP(a_encoding))) { | |
ZLIBG(compression_coding) = CODING_GZIP; | |
} else if (php_memnstr(Z_STRVAL_PP(a_encoding), "deflate", 7, Z_STRVAL_PP(a_encoding) + Z_STRLEN_PP(a_encoding))) { | |
ZLIBG(compression_coding) = CODING_DEFLATE; | |
} else { | |
ZLIBG(ob_gzhandler_status) = -1; | |
RETURN_FALSE; | |
} | |
| |
do_start = ((mode & PHP_OUTPUT_HANDLER_START) ? 1 : 0); | |
do_end = ((mode & PHP_OUTPUT_HANDLER_END) ? 1 : 0); | |
Z_STRVAL_P(return_value) = NULL; | |
Z_STRLEN_P(return_value) = 0; | |
| |
if (php_deflate_string(string, string_len, &Z_STRVAL_P(return_value), &Z_STRLEN_P(return_value), do_start, do_end TSRMLS_CC) == SUCCESS) { | |
Z_TYPE_P(return_value) = IS_STRING; | |
if (do_start) { | |
switch (ZLIBG(compression_coding)) { | |
case CODING_GZIP: | |
if (sapi_add_header("Content-Encoding: gzip", sizeof("Content-Encoding: gzip") - 1, 1) == FAILURE) { | |
return_original = 1; | |
} | |
if (sapi_add_header_ex("Vary: Accept-Encoding", sizeof("Vary: Accept-Encoding") - 1, 1, 0 TSRMLS_CC)==FAILURE) { | |
return_original = 1; | |
} | |
break; | |
case CODING_DEFLATE: | |
if (sapi_add_header("Content-Encoding: deflate", sizeof("Content-Encoding: deflate") - 1, 1) == FAILURE) { | |
return_original = 1; | |
} | |
if (sapi_add_header_ex("Vary: Accept-Encoding", sizeof("Vary: Accept-Encoding") - 1, 1, 0 TSRMLS_CC)==FAILURE) { | |
return_original = 1; | |
} | |
break; | |
default: | |
return_original = 1; | |
break; | |
} | |
} | |
| |
if (return_original) { | |
zval_dtor(return_value); | |
} | |
| |
} else { | |
return_original = 1; | |
} | |
| |
if (return_original) { | |
/* return the original string */ | |
RETURN_STRINGL(string, string_len, 1); | |
} | |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ php_gzip_output_handler | static PHP_RSHUTDOWN_FUNCTION(zlib) |
*/ | |
static void php_gzip_output_handler(char *output, uint output_len, char **handled_output, uint *handled_output_len, int mode TSRMLS_DC) | |
{ |
{ |
zend_bool do_start, do_end; | ZLIBG(output_compression) = 0; |
| php_zlib_cleanup_ob_gzhandler_mess(TSRMLS_C); |
|
|
if (!ZLIBG(output_compression) || SG(sapi_headers).http_response_code == 204 || SG(sapi_headers).http_response_code == 304) { | return SUCCESS; |
*handled_output = NULL; | |
} else { | |
do_start = (mode & PHP_OUTPUT_HANDLER_START ? 1 : 0); | |
do_end = (mode & PHP_OUTPUT_HANDLER_END ? 1 : 0); | |
| |
if (do_start) { | |
if (!SG(headers_sent) && !SG(request_info).no_headers) { | |
switch (ZLIBG(compression_coding)) { | |
case CODING_GZIP: | |
sapi_add_header_ex(ZEND_STRL("Content-Encoding: gzip"), 1, 1 TSRMLS_CC); | |
break; | |
case CODING_DEFLATE: | |
sapi_add_header_ex(ZEND_STRL("Content-Encoding: deflate"), 1, 1 TSRMLS_CC); | |
break; | |
} | |
sapi_add_header_ex(ZEND_STRL("Vary: Accept-Encoding"), 1, 0 TSRMLS_CC); | |
} else { | |
/* Disable compression if headers can not be set (Fix for bug #49816) */ | |
ZLIBG(output_compression) = 0; | |
*handled_output = NULL; | |
return; | |
} | |
} | |
| |
if (php_deflate_string(output, output_len, handled_output, handled_output_len, do_start, do_end TSRMLS_CC) != SUCCESS) { | |
zend_error(E_ERROR, "Compression failed"); | |
} | |
} | |
} |
} |
/* }}} */ |
|
|
|
/* {{{ php_enable_output_compression | /* {{{ PHP_MINFO_FUNCTION */ |
*/ | static PHP_MINFO_FUNCTION(zlib) |
static int php_enable_output_compression(int buffer_size TSRMLS_DC) | |
{ |
{ |
zval **a_encoding; | php_info_print_table_start(); |
| php_info_print_table_header(2, "ZLib Support", "enabled"); |
| php_info_print_table_row(2, "Stream Wrapper", "compress.zlib://"); |
| php_info_print_table_row(2, "Stream Filter", "zlib.inflate, zlib.deflate"); |
| php_info_print_table_row(2, "Compiled Version", ZLIB_VERSION); |
| php_info_print_table_row(2, "Linked Version", (char *) zlibVersion()); |
| php_info_print_table_end(); |
|
|
zend_is_auto_global("_SERVER", sizeof("_SERVER")-1 TSRMLS_CC); | DISPLAY_INI_ENTRIES(); |
| |
if (!PG(http_globals)[TRACK_VARS_SERVER] | |
|| zend_hash_find(PG(http_globals)[TRACK_VARS_SERVER]->value.ht, "HTTP_ACCEPT_ENCODING", sizeof("HTTP_ACCEPT_ENCODING"), (void **) &a_encoding) == FAILURE | |
) { | |
return FAILURE; | |
} | |
| |
convert_to_string_ex(a_encoding); | |
| |
if (php_memnstr(Z_STRVAL_PP(a_encoding), "gzip", 4, Z_STRVAL_PP(a_encoding) + Z_STRLEN_PP(a_encoding))) { | |
ZLIBG(compression_coding) = CODING_GZIP; | |
} else if (php_memnstr(Z_STRVAL_PP(a_encoding), "deflate", 7, Z_STRVAL_PP(a_encoding) + Z_STRLEN_PP(a_encoding))) { | |
ZLIBG(compression_coding) = CODING_DEFLATE; | |
} else { | |
return FAILURE; | |
} | |
| |
php_ob_set_internal_handler(php_gzip_output_handler, (uint)buffer_size, "zlib output compression", 0 TSRMLS_CC); | |
| |
if (ZLIBG(output_handler) && strlen(ZLIBG(output_handler))) { | |
php_start_ob_buffer_named(ZLIBG(output_handler), 0, 1 TSRMLS_CC); | |
} | |
return SUCCESS; | |
} |
} |
/* }}} */ |
/* }}} */ |
|
|
/* {{{ php_zlib_output_compression_start() */ | /* {{{ ZEND_MODULE_GLOBALS_CTOR */ |
static int php_zlib_output_compression_start(TSRMLS_D) | static ZEND_MODULE_GLOBALS_CTOR_D(zlib) |
{ |
{ |
switch (ZLIBG(output_compression)) { | zlib_globals->ob_gzhandler = NULL; |
case 0: | |
break; | |
case 1: | |
ZLIBG(output_compression) = 4096; | |
/* break omitted intentionally */ | |
default: | |
/* ZLIBG(compression_coding) should be 0 when zlib compression hasn't been started yet.. */ | |
if (ZLIBG(compression_coding) == 0) { | |
return php_enable_output_compression(ZLIBG(output_compression) TSRMLS_CC); | |
} | |
} | |
return SUCCESS; | |
} |
} |
|
/* }}} */ |
|
|
|
/* {{{ php_zlib_module_entry */ |
|
zend_module_entry php_zlib_module_entry = { |
|
STANDARD_MODULE_HEADER, |
|
"zlib", |
|
php_zlib_functions, |
|
PHP_MINIT(zlib), |
|
PHP_MSHUTDOWN(zlib), |
|
PHP_RINIT(zlib), |
|
PHP_RSHUTDOWN(zlib), |
|
PHP_MINFO(zlib), |
|
"2.0", |
|
PHP_MODULE_GLOBALS(zlib), |
|
ZEND_MODULE_GLOBALS_CTOR_N(zlib), |
|
NULL, |
|
NULL, |
|
STANDARD_MODULE_PROPERTIES_EX |
|
}; |
/* }}} */ |
/* }}} */ |
|
|
/* |
/* |