curl.c

php-4.4.7学习linux时下载的源代码

/*
   +----------------------------------------------------------------------+
   | PHP Version 4                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2007 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | [e-mail] so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Sterling Hughes <[e-mail]>                           |
   +----------------------------------------------------------------------+
*/

/* $Id: curl.c,v 1.124.2.30.2.19 2007/03/15 23:19:21 tony2001 Exp $ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef PHP_WIN32
#include <winsock2.h>
#endif

#include "php.h"

#if HAVE_CURL

#include <stdio.h>
#include <string.h>

#ifdef PHP_WIN32
#include <sys/types.h>
#endif

#include <curl/curl.h>
#include <curl/easy.h>

/* As of curl 7.11.1 this is no longer defined inside curl.h */
#ifndef HttpPost
#define HttpPost curl_httppost
#endif

/* {{{ cruft for thread safe SSL crypto locks */
#if defined(ZTS) && defined(HAVE_CURL_SSL)
# ifdef PHP_WIN32
#  define PHP_CURL_NEED_OPENSSL_TSL
#  include <openssl/crypto.h>
# else /* !PHP_WIN32 */
#  if defined(HAVE_CURL_OPENSSL)
#   if defined(HAVE_OPENSSL_CRYPTO_H)
#    define PHP_CURL_NEED_OPENSSL_TSL
#    include <openssl/crypto.h>
#   else
#    warning \
     "libcurl was compiled with OpenSSL support, but configure could not find " \
     "openssl/crypto.h; thus no SSL crypto locking callbacks will be set, which may " \
     "cause random crashes on SSL requests"
#   endif
#  elif defined(HAVE_CURL_GNUTLS)
#   if defined(HAVE_GCRYPT_H)
#    define PHP_CURL_NEED_GNUTLS_TSL
#    include <gcrypt.h>
#   else
#    warning \
     "libcurl was compiled with GnuTLS support, but configure could not find " \
     "gcrypt.h; thus no SSL crypto locking callbacks will be set, which may " \
     "cause random crashes on SSL requests"
#   endif
#  else
#   warning \
    "libcurl was compiled with SSL support, but configure could not determine which" \
    "library was used; thus no SSL crypto locking callbacks will be set, which may " \
    "cause random crashes on SSL requests"
#  endif /* HAVE_CURL_OPENSSL || HAVE_CURL_GNUTLS */
# endif /* PHP_WIN32 */
#endif /* ZTS && HAVE_CURL_SSL */
/* }}} */

#define SMART_STR_PREALLOC 4096

#include "ext/standard/php_smart_str.h"
#include "ext/standard/php_string.h"
#include "ext/standard/info.h"
#include "ext/standard/file.h"
#include "ext/standard/url.h"
#include "php_curl.h"

static int  le_curl;
#define le_curl_name "cURL handle"

#ifdef PHP_CURL_NEED_OPENSSL_TSL /* {{{ */
static MUTEX_T *php_curl_openssl_tsl = NULL;

static void php_curl_ssl_lock(int mode, int n, const char * file, int line)
{
	if (mode & CRYPTO_LOCK) {
		tsrm_mutex_lock(php_curl_openssl_tsl[n]);
	} else {
		tsrm_mutex_unlock(php_curl_openssl_tsl[n]);
	}
}

static unsigned long php_curl_ssl_id(void)
{
	return (unsigned long) tsrm_thread_id();
}
#endif
/* }}} */

#ifdef PHP_CURL_NEED_GNUTLS_TSL /* {{{ */
static int php_curl_ssl_mutex_create(void **m)
{
	if (*((MUTEX_T *) m) = tsrm_mutex_alloc()) {
		return SUCCESS;
	} else {
		return FAILURE;
	}
}

static int php_curl_ssl_mutex_destroy(void **m)
{
	tsrm_mutex_free(*((MUTEX_T *) m));
	return SUCCESS;
}

static int php_curl_ssl_mutex_lock(void **m)
{
	return tsrm_mutex_lock(*((MUTEX_T *) m));
}

static int php_curl_ssl_mutex_unlock(void **m)
{
	return tsrm_mutex_unlock(*((MUTEX_T *) m));
}

static struct gcry_thread_cbs php_curl_gnutls_tsl = {
	GCRY_THREAD_OPTION_USER,
	NULL,
	php_curl_ssl_mutex_create,
	php_curl_ssl_mutex_destroy,
	php_curl_ssl_mutex_lock,
	php_curl_ssl_mutex_unlock
};
#endif
/* }}} */

static void _php_curl_close(zend_rsrc_list_entry *rsrc TSRMLS_DC);

#define SAVE_CURL_ERROR(__handle, __err) (__handle)->err.no = (int) __err;

#define CAAL(s, v) add_assoc_long_ex(return_value, s, sizeof(s), (long) v);
#define CAAD(s, v) add_assoc_double_ex(return_value, s, sizeof(s), (double) v);
#define CAAS(s, v) add_assoc_string_ex(return_value, s, sizeof(s), (char *) v, 1);
#define CAAZ(s, v) add_assoc_zval_ex(return_value, s, sizeof(s), (zval *) v);

#define PHP_CURL_CHECK_OPEN_BASEDIR(str, len)													\
	if (((PG(open_basedir) && *PG(open_basedir)) || PG(safe_mode)) &&                                                \
	    strncasecmp(str, "file:", sizeof("file:") - 1) == 0)								\
	{ 																							\
		php_url *tmp_url; 																		\
															\
		if (!(tmp_url = php_url_parse_ex(str, len))) {											\
			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid url '%s'", str);				\
			RETURN_FALSE; 																		\
		} 																						\
															\
		if (php_memnstr(str, tmp_url->path, strlen(tmp_url->path), str + len)) {				\
			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Url '%s' contains unencoded control characters.", str);	\
			RETURN_FALSE;											\
		}													\
																								\
		if (tmp_url->query || tmp_url->fragment || php_check_open_basedir(tmp_url->path TSRMLS_CC) || 									\
			(PG(safe_mode) && !php_checkuid(tmp_url->path, "rb+", CHECKUID_CHECK_MODE_PARAM))	\
		) { 																					\
			php_url_free(tmp_url); 																\
			RETURN_FALSE; 																		\
		} 																						\
		php_url_free(tmp_url); 																	\
	}

/* {{{ curl_functions[]
 */
function_entry curl_functions[] = {
	PHP_FE(curl_init,     NULL)
	PHP_FE(curl_version,  NULL)
	PHP_FE(curl_setopt,   NULL)
	PHP_FE(curl_exec,     NULL)
	PHP_FE(curl_getinfo,  NULL)
	PHP_FE(curl_error,    NULL)
	PHP_FE(curl_errno,    NULL)
	PHP_FE(curl_close,    NULL)
	{NULL, NULL, NULL}
};
/* }}} */

/* {{{ curl_module_entry
 */
zend_module_entry curl_module_entry = {
	STANDARD_MODULE_HEADER,
	"curl",
	curl_functions,
	PHP_MINIT(curl),
	PHP_MSHUTDOWN(curl),
	NULL,
	NULL,
	PHP_MINFO(curl),
	NO_VERSION_YET,
	STANDARD_MODULE_PROPERTIES
};
/* }}} */

#ifdef COMPILE_DL_CURL
ZEND_GET_MODULE (curl)
#endif

/* {{{ PHP_MINFO_FUNCTION
 */
PHP_MINFO_FUNCTION(curl)
{
	php_info_print_table_start();
	php_info_print_table_row(2, "CURL support",    "enabled");
	php_info_print_table_row(2, "CURL Information", curl_version());
	php_info_print_table_end();
}
/* }}} */

#define REGISTER_CURL_CONSTANT(__c) REGISTER_LONG_CONSTANT(#__c, __c, CONST_CS | CONST_PERSISTENT)

/* {{{ PHP_MINIT_FUNCTION
 */
PHP_MINIT_FUNCTION(curl)
{
	le_curl = zend_register_list_destructors_ex(_php_curl_close, NULL, "curl", module_number);
	
	/* Constants for curl_setopt() */
	REGISTER_CURL_CONSTANT(CURLOPT_DNS_USE_GLOBAL_CACHE);
	REGISTER_CURL_CONSTANT(CURLOPT_DNS_CACHE_TIMEOUT);
	REGISTER_CURL_CONSTANT(CURLOPT_PORT);
	REGISTER_CURL_CONSTANT(CURLOPT_FILE);
	REGISTER_CURL_CONSTANT(CURLOPT_INFILE);
	REGISTER_CURL_CONSTANT(CURLOPT_INFILESIZE);
	REGISTER_CURL_CONSTANT(CURLOPT_URL);
	REGISTER_CURL_CONSTANT(CURLOPT_PROXY);
	REGISTER_CURL_CONSTANT(CURLOPT_VERBOSE);
	REGISTER_CURL_CONSTANT(CURLOPT_HEADER);
	REGISTER_CURL_CONSTANT(CURLOPT_HTTPHEADER);
	REGISTER_CURL_CONSTANT(CURLOPT_NOPROGRESS);
	REGISTER_CURL_CONSTANT(CURLOPT_NOBODY);
	REGISTER_CURL_CONSTANT(CURLOPT_FAILONERROR);
	REGISTER_CURL_CONSTANT(CURLOPT_UPLOAD);
	REGISTER_CURL_CONSTANT(CURLOPT_POST);
	REGISTER_CURL_CONSTANT(CURLOPT_FTPLISTONLY);
	REGISTER_CURL_CONSTANT(CURLOPT_FTPAPPEND);
	REGISTER_CURL_CONSTANT(CURLOPT_NETRC);
	REGISTER_CURL_CONSTANT(CURLOPT_FOLLOWLOCATION);
#if CURLOPT_FTPASCII != 0
	REGISTER_CURL_CONSTANT(CURLOPT_FTPASCII);
#endif
	REGISTER_CURL_CONSTANT(CURLOPT_PUT);
#if CURLOPT_MUTE != 0
	REGISTER_CURL_CONSTANT(CURLOPT_MUTE);
#endif
	REGISTER_CURL_CONSTANT(CURLOPT_USERPWD);
	REGISTER_CURL_CONSTANT(CURLOPT_PROXYUSERPWD);
	REGISTER_CURL_CONSTANT(CURLOPT_RANGE);
	REGISTER_CURL_CONSTANT(CURLOPT_TIMEOUT);
	REGISTER_CURL_CONSTANT(CURLOPT_POSTFIELDS);
	REGISTER_CURL_CONSTANT(CURLOPT_REFERER);
	REGISTER_CURL_CONSTANT(CURLOPT_USERAGENT);
	REGISTER_CURL_CONSTANT(CURLOPT_FTPPORT);
	REGISTER_CURL_CONSTANT(CURLOPT_FTP_USE_EPSV);
	REGISTER_CURL_CONSTANT(CURLOPT_LOW_SPEED_LIMIT);
	REGISTER_CURL_CONSTANT(CURLOPT_LOW_SPEED_TIME);
	REGISTER_CURL_CONSTANT(CURLOPT_RESUME_FROM);
	REGISTER_CURL_CONSTANT(CURLOPT_COOKIE);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLCERT);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLCERTPASSWD);
	REGISTER_CURL_CONSTANT(CURLOPT_WRITEHEADER);
	REGISTER_CURL_CONSTANT(CURLOPT_SSL_VERIFYHOST);
	REGISTER_CURL_CONSTANT(CURLOPT_COOKIEFILE);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLVERSION);
	REGISTER_CURL_CONSTANT(CURLOPT_TIMECONDITION);
	REGISTER_CURL_CONSTANT(CURLOPT_TIMEVALUE);
	REGISTER_CURL_CONSTANT(CURLOPT_CUSTOMREQUEST);
	REGISTER_CURL_CONSTANT(CURLOPT_STDERR);
	REGISTER_CURL_CONSTANT(CURLOPT_TRANSFERTEXT);
	REGISTER_CURL_CONSTANT(CURLOPT_RETURNTRANSFER);
	REGISTER_CURL_CONSTANT(CURLOPT_QUOTE);
	REGISTER_CURL_CONSTANT(CURLOPT_POSTQUOTE);
	REGISTER_CURL_CONSTANT(CURLOPT_INTERFACE);
	REGISTER_CURL_CONSTANT(CURLOPT_KRB4LEVEL);
	REGISTER_CURL_CONSTANT(CURLOPT_HTTPPROXYTUNNEL);
	REGISTER_CURL_CONSTANT(CURLOPT_FILETIME);
	REGISTER_CURL_CONSTANT(CURLOPT_WRITEFUNCTION);
	REGISTER_CURL_CONSTANT(CURLOPT_READFUNCTION);
#if CURLOPT_PASSWDFUNCTION != 0 
	REGISTER_CURL_CONSTANT(CURLOPT_PASSWDFUNCTION);
#endif
	REGISTER_CURL_CONSTANT(CURLOPT_HEADERFUNCTION);
	REGISTER_CURL_CONSTANT(CURLOPT_MAXREDIRS);
	REGISTER_CURL_CONSTANT(CURLOPT_MAXCONNECTS);
	REGISTER_CURL_CONSTANT(CURLOPT_CLOSEPOLICY);
	REGISTER_CURL_CONSTANT(CURLOPT_FRESH_CONNECT);
	REGISTER_CURL_CONSTANT(CURLOPT_FORBID_REUSE);
	REGISTER_CURL_CONSTANT(CURLOPT_RANDOM_FILE);
	REGISTER_CURL_CONSTANT(CURLOPT_EGDSOCKET);
	REGISTER_CURL_CONSTANT(CURLOPT_CONNECTTIMEOUT);
	REGISTER_CURL_CONSTANT(CURLOPT_SSL_VERIFYPEER);
	REGISTER_CURL_CONSTANT(CURLOPT_CAINFO);
	REGISTER_CURL_CONSTANT(CURLOPT_CAPATH);
	REGISTER_CURL_CONSTANT(CURLOPT_COOKIEJAR);
	REGISTER_CURL_CONSTANT(CURLOPT_SSL_CIPHER_LIST);
	REGISTER_CURL_CONSTANT(CURLOPT_BINARYTRANSFER);
	REGISTER_CURL_CONSTANT(CURLOPT_HTTPGET);
	REGISTER_CURL_CONSTANT(CURLOPT_HTTP_VERSION);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLKEY);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLKEYTYPE);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLKEYPASSWD);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLENGINE);
	REGISTER_CURL_CONSTANT(CURLOPT_SSLENGINE_DEFAULT);
	REGISTER_CURL_CONSTANT(CURLOPT_CRLF);
	REGISTER_CURL_CONSTANT(CURL_TIMECOND_IFMODSINCE);
 	REGISTER_CURL_CONSTANT(CURL_TIMECOND_IFUNMODSINCE);
 	REGISTER_CURL_CONSTANT(CURL_TIMECOND_LASTMOD);
#if LIBCURL_VERSION_NUM >= 0x070a00
	REGISTER_CURL_CONSTANT(CURLOPT_ENCODING);
#endif
		
#if LIBCURL_VERSION_NUM > 0x070a05 /* CURLOPT_HTTPAUTH is available since curl 7.10.6 */
 	REGISTER_CURL_CONSTANT(CURLOPT_HTTPAUTH);
 	/* http authentication options */
 	REGISTER_CURL_CONSTANT(CURLAUTH_BASIC);
 	REGISTER_CURL_CONSTANT(CURLAUTH_DIGEST);
 	REGISTER_CURL_CONSTANT(CURLAUTH_GSSNEGOTIATE);
 	REGISTER_CURL_CONSTANT(CURLAUTH_NTLM);
 	REGISTER_CURL_CONSTANT(CURLAUTH_ANY);
 	REGISTER_CURL_CONSTANT(CURLAUTH_ANYSAFE);
#endif

#if LIBCURL_VERSION_NUM > 0x070a06 /* CURLOPT_PROXYAUTH is available since curl 7.10.7 */
	REGISTER_CURL_CONSTANT(CURLOPT_PROXYAUTH);
#endif

	/* Constants effecting the way CURLOPT_CLOSEPOLICY works */
	REGISTER_CURL_CONSTANT(CURLCLOSEPOLICY_LEAST_RECENTLY_USED);
	REGISTER_CURL_CONSTANT(CURLCLOSEPOLICY_LEAST_TRAFFIC);
	REGISTER_CURL_CONSTANT(CURLCLOSEPOLICY_SLOWEST);
	REGISTER_CURL_CONSTANT(CURLCLOSEPOLICY_CALLBACK);
	REGISTER_CURL_CONSTANT(CURLCLOSEPOLICY_OLDEST);

	/* Info constants */
	REGISTER_CURL_CONSTANT(CURLINFO_EFFECTIVE_URL);
	REGISTER_CURL_CONSTANT(CURLINFO_HTTP_CODE);
	REGISTER_CURL_CONSTANT(CURLINFO_HEADER_SIZE);
	REGISTER_CURL_CONSTANT(CURLINFO_REQUEST_SIZE);
	REGISTER_CURL_CONSTANT(CURLINFO_TOTAL_TIME);
	REGISTER_CURL_CONSTANT(CURLINFO_NAMELOOKUP_TIME);
	REGISTER_CURL_CONSTANT(CURLINFO_CONNECT_TIME);
	REGISTER_CURL_CONSTANT(CURLINFO_PRETRANSFER_TIME);
	REGISTER_CURL_CONSTANT(CURLINFO_SIZE_UPLOAD);
	REGISTER_CURL_CONSTANT(CURLINFO_SIZE_DOWNLOAD);
	REGISTER_CURL_CONSTANT(CURLINFO_SPEED_DOWNLOAD);
	REGISTER_CURL_CONSTANT(CURLINFO_SPEED_UPLOAD);
	REGISTER_CURL_CONSTANT(CURLINFO_FILETIME);
	REGISTER_CURL_CONSTANT(CURLINFO_SSL_VERIFYRESULT);
	REGISTER_CURL_CONSTANT(CURLINFO_CONTENT_LENGTH_DOWNLOAD);
	REGISTER_CURL_CONSTANT(CURLINFO_CONTENT_LENGTH_UPLOAD);
	REGISTER_CURL_CONSTANT(CURLINFO_STARTTRANSFER_TIME);
	REGISTER_CURL_CONSTANT(CURLINFO_CONTENT_TYPE);
	REGISTER_CURL_CONSTANT(CURLINFO_REDIRECT_TIME);
	REGISTER_CURL_CONSTANT(CURLINFO_REDIRECT_COUNT);

	/* Error Constants */
	REGISTER_CURL_CONSTANT(CURLE_OK);
	REGISTER_CURL_CONSTANT(CURLE_UNSUPPORTED_PROTOCOL);
	REGISTER_CURL_CONSTANT(CURLE_FAILED_INIT);
	REGISTER_CURL_CONSTANT(CURLE_URL_MALFORMAT);
	REGISTER_CURL_CONSTANT(CURLE_URL_MALFORMAT_USER);
	REGISTER_CURL_CONSTANT(CURLE_COULDNT_RESOLVE_PROXY);
	REGISTER_CURL_CONSTANT(CURLE_COULDNT_RESOLVE_HOST);
	REGISTER_CURL_CONSTANT(CURLE_COULDNT_CONNECT);
	REGISTER_CURL_CONSTANT(CURLE_FTP_WEIRD_SERVER_REPLY);
	REGISTER_CURL_CONSTANT(CURLE_FTP_ACCESS_DENIED);
	REGISTER_CURL_CONSTANT(CURLE_FTP_USER_PASSWORD_INCORRECT);
	REGISTER_CURL_CONSTANT(CURLE_FTP_WEIRD_PASS_REPLY);
	REGISTER_CURL_CONSTANT(CURLE_FTP_WEIRD_USER_REPLY);
	REGISTER_CURL_CONSTANT(CURLE_FTP_WEIRD_PASV_REPLY);
	REGISTER_CURL_CONSTANT(CURLE_FTP_WEIRD_227_FORMAT);
	REGISTER_CURL_CONSTANT(CURLE_FTP_CANT_GET_HOST);