/ext/standard/http_fopen_wrapper.c
C | 964 lines | 762 code | 117 blank | 85 comment | 452 complexity | 9abc7ccfad07c78784b57f05903083e4 MD5 | raw file
Possible License(s): MPL-2.0-no-copyleft-exception, LGPL-2.1, BSD-3-Clause
- /*
- +----------------------------------------------------------------------+
- | PHP Version 5 |
- +----------------------------------------------------------------------+
- | Copyright (c) 1997-2011 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 |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Rasmus Lerdorf <rasmus@php.net> |
- | Jim Winstead <jimw@php.net> |
- | Hartmut Holzgraefe <hholzgra@php.net> |
- | Wez Furlong <wez@thebrainroom.com> |
- | Sara Golemon <pollita@php.net> |
- +----------------------------------------------------------------------+
- */
- /* $Id: http_fopen_wrapper.c 307815 2011-01-28 10:33:47Z dmitry $ */
- #include "php.h"
- #include "php_globals.h"
- #include "php_streams.h"
- #include "php_network.h"
- #include "php_ini.h"
- #include "ext/standard/basic_functions.h"
- #include "ext/standard/php_smart_str.h"
- #include <stdio.h>
- #include <stdlib.h>
- #include <errno.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #ifdef PHP_WIN32
- #define O_RDONLY _O_RDONLY
- #include "win32/param.h"
- #else
- #include <sys/param.h>
- #endif
- #include "php_standard.h"
- #include <sys/types.h>
- #if HAVE_SYS_SOCKET_H
- #include <sys/socket.h>
- #endif
- #ifdef PHP_WIN32
- #include <winsock2.h>
- #elif defined(NETWARE) && defined(USE_WINSOCK)
- #include <novsock2.h>
- #else
- #include <netinet/in.h>
- #include <netdb.h>
- #if HAVE_ARPA_INET_H
- #include <arpa/inet.h>
- #endif
- #endif
- #if defined(PHP_WIN32) || defined(__riscos__) || defined(NETWARE)
- #undef AF_UNIX
- #endif
- #if defined(AF_UNIX)
- #include <sys/un.h>
- #endif
- #include "php_fopen_wrappers.h"
- #define HTTP_HEADER_BLOCK_SIZE 1024
- #define PHP_URL_REDIRECT_MAX 20
- #define HTTP_HEADER_USER_AGENT 1
- #define HTTP_HEADER_HOST 2
- #define HTTP_HEADER_AUTH 4
- #define HTTP_HEADER_FROM 8
- #define HTTP_HEADER_CONTENT_LENGTH 16
- #define HTTP_HEADER_TYPE 32
- #define HTTP_WRAPPER_HEADER_INIT 1
- #define HTTP_WRAPPER_REDIRECTED 2
- php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path, php_stream_context *context, int redirect_max, int flags STREAMS_DC TSRMLS_DC) /* {{{ */
- {
- php_stream *stream = NULL;
- php_url *resource = NULL;
- int use_ssl;
- int use_proxy = 0;
- char *scratch = NULL;
- char *tmp = NULL;
- char *ua_str = NULL;
- zval **ua_zval = NULL, **tmpzval = NULL;
- int scratch_len = 0;
- int body = 0;
- char location[HTTP_HEADER_BLOCK_SIZE];
- zval *response_header = NULL;
- int reqok = 0;
- char *http_header_line = NULL;
- char tmp_line[128];
- size_t chunk_size = 0, file_size = 0;
- int eol_detect = 0;
- char *transport_string, *errstr = NULL;
- int transport_len, have_header = 0, request_fulluri = 0, ignore_errors = 0;
- char *protocol_version = NULL;
- int protocol_version_len = 3; /* Default: "1.0" */
- struct timeval timeout;
- char *user_headers = NULL;
- int header_init = ((flags & HTTP_WRAPPER_HEADER_INIT) != 0);
- int redirected = ((flags & HTTP_WRAPPER_REDIRECTED) != 0);
- int follow_location = 1;
- php_stream_filter *transfer_encoding = NULL;
- tmp_line[0] = '\0';
- if (redirect_max < 1) {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Redirection limit reached, aborting");
- return NULL;
- }
- resource = php_url_parse(path);
- if (resource == NULL) {
- return NULL;
- }
- if (strncasecmp(resource->scheme, "http", sizeof("http")) && strncasecmp(resource->scheme, "https", sizeof("https"))) {
- if (!context ||
- php_stream_context_get_option(context, wrapper->wops->label, "proxy", &tmpzval) == FAILURE ||
- Z_TYPE_PP(tmpzval) != IS_STRING ||
- Z_STRLEN_PP(tmpzval) <= 0) {
- php_url_free(resource);
- return php_stream_open_wrapper_ex(path, mode, ENFORCE_SAFE_MODE | REPORT_ERRORS, NULL, context);
- }
- /* Called from a non-http wrapper with http proxying requested (i.e. ftp) */
- request_fulluri = 1;
- use_ssl = 0;
- use_proxy = 1;
- transport_len = Z_STRLEN_PP(tmpzval);
- transport_string = estrndup(Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval));
- } else {
- /* Normal http request (possibly with proxy) */
-
- if (strpbrk(mode, "awx+")) {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "HTTP wrapper does not support writeable connections");
- php_url_free(resource);
- return NULL;
- }
- use_ssl = resource->scheme && (strlen(resource->scheme) > 4) && resource->scheme[4] == 's';
- /* choose default ports */
- if (use_ssl && resource->port == 0)
- resource->port = 443;
- else if (resource->port == 0)
- resource->port = 80;
- if (context &&
- php_stream_context_get_option(context, wrapper->wops->label, "proxy", &tmpzval) == SUCCESS &&
- Z_TYPE_PP(tmpzval) == IS_STRING &&
- Z_STRLEN_PP(tmpzval) > 0) {
- use_proxy = 1;
- transport_len = Z_STRLEN_PP(tmpzval);
- transport_string = estrndup(Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval));
- } else {
- transport_len = spprintf(&transport_string, 0, "%s://%s:%d", use_ssl ? "ssl" : "tcp", resource->host, resource->port);
- }
- }
- if (context && php_stream_context_get_option(context, wrapper->wops->label, "timeout", &tmpzval) == SUCCESS) {
- SEPARATE_ZVAL(tmpzval);
- convert_to_double_ex(tmpzval);
- timeout.tv_sec = (time_t) Z_DVAL_PP(tmpzval);
- timeout.tv_usec = (size_t) ((Z_DVAL_PP(tmpzval) - timeout.tv_sec) * 1000000);
- } else {
- timeout.tv_sec = FG(default_socket_timeout);
- timeout.tv_usec = 0;
- }
- stream = php_stream_xport_create(transport_string, transport_len, options,
- STREAM_XPORT_CLIENT | STREAM_XPORT_CONNECT,
- NULL, &timeout, context, &errstr, NULL);
-
- if (stream) {
- php_stream_set_option(stream, PHP_STREAM_OPTION_READ_TIMEOUT, 0, &timeout);
- }
-
- if (errstr) {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", errstr);
- efree(errstr);
- errstr = NULL;
- }
- efree(transport_string);
- if (stream && use_proxy && use_ssl) {
- smart_str header = {0};
- smart_str_appendl(&header, "CONNECT ", sizeof("CONNECT ")-1);
- smart_str_appends(&header, resource->host);
- smart_str_appendc(&header, ':');
- smart_str_append_unsigned(&header, resource->port);
- smart_str_appendl(&header, " HTTP/1.0\r\n", sizeof(" HTTP/1.0\r\n")-1);
- /* check if we have Proxy-Authorization header */
- if (context && php_stream_context_get_option(context, "http", "header", &tmpzval) == SUCCESS) {
- char *s, *p;
- if (Z_TYPE_PP(tmpzval) == IS_ARRAY) {
- HashPosition pos;
- zval **tmpheader = NULL;
- for (zend_hash_internal_pointer_reset_ex(Z_ARRVAL_PP(tmpzval), &pos);
- SUCCESS == zend_hash_get_current_data_ex(Z_ARRVAL_PP(tmpzval), (void *)&tmpheader, &pos);
- zend_hash_move_forward_ex(Z_ARRVAL_PP(tmpzval), &pos)) {
- if (Z_TYPE_PP(tmpheader) == IS_STRING) {
- s = Z_STRVAL_PP(tmpheader);
- do {
- while (*s == ' ' || *s == '\t') s++;
- p = s;
- while (*p != 0 && *p != ':' && *p != '\r' && *p !='\n') p++;
- if (*p == ':') {
- p++;
- if (p - s == sizeof("Proxy-Authorization:") - 1 &&
- zend_binary_strcasecmp(s, sizeof("Proxy-Authorization:") - 1,
- "Proxy-Authorization:", sizeof("Proxy-Authorization:") - 1) == 0) {
- while (*p != 0 && *p != '\r' && *p !='\n') p++;
- smart_str_appendl(&header, s, p - s);
- smart_str_appendl(&header, "\r\n", sizeof("\r\n")-1);
- goto finish;
- } else {
- while (*p != 0 && *p != '\r' && *p !='\n') p++;
- }
- }
- s = p;
- while (*s == '\r' || *s == '\n') s++;
- } while (*s != 0);
- }
- }
- } else if (Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval)) {
- s = Z_STRVAL_PP(tmpzval);
- do {
- while (*s == ' ' || *s == '\t') s++;
- p = s;
- while (*p != 0 && *p != ':' && *p != '\r' && *p !='\n') p++;
- if (*p == ':') {
- p++;
- if (p - s == sizeof("Proxy-Authorization:") - 1 &&
- zend_binary_strcasecmp(s, sizeof("Proxy-Authorization:") - 1,
- "Proxy-Authorization:", sizeof("Proxy-Authorization:") - 1) == 0) {
- while (*p != 0 && *p != '\r' && *p !='\n') p++;
- smart_str_appendl(&header, s, p - s);
- smart_str_appendl(&header, "\r\n", sizeof("\r\n")-1);
- goto finish;
- } else {
- while (*p != 0 && *p != '\r' && *p !='\n') p++;
- }
- }
- s = p;
- while (*s == '\r' || *s == '\n') s++;
- } while (*s != 0);
- }
- }
- finish:
- smart_str_appendl(&header, "\r\n", sizeof("\r\n")-1);
- if (php_stream_write(stream, header.c, header.len) != header.len) {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Cannot connect to HTTPS server through proxy");
- php_stream_close(stream);
- stream = NULL;
- }
- smart_str_free(&header);
- if (stream) {
- char header_line[HTTP_HEADER_BLOCK_SIZE];
- /* get response header */
- while (php_stream_gets(stream, header_line, HTTP_HEADER_BLOCK_SIZE-1) != NULL) {
- if (header_line[0] == '\n' ||
- header_line[0] == '\r' ||
- header_line[0] == '\0') {
- break;
- }
- }
- }
- /* enable SSL transport layer */
- if (stream) {
- if (php_stream_xport_crypto_setup(stream, STREAM_CRYPTO_METHOD_SSLv23_CLIENT, NULL TSRMLS_CC) < 0 ||
- php_stream_xport_crypto_enable(stream, 1 TSRMLS_CC) < 0) {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Cannot connect to HTTPS server through proxy");
- php_stream_close(stream);
- stream = NULL;
- }
- }
- }
- if (stream == NULL)
- goto out;
- /* avoid buffering issues while reading header */
- if (options & STREAM_WILL_CAST)
- chunk_size = php_stream_set_chunk_size(stream, 1);
-
- /* avoid problems with auto-detecting when reading the headers -> the headers
- * are always in canonical \r\n format */
- eol_detect = stream->flags & (PHP_STREAM_FLAG_DETECT_EOL | PHP_STREAM_FLAG_EOL_MAC);
- stream->flags &= ~(PHP_STREAM_FLAG_DETECT_EOL | PHP_STREAM_FLAG_EOL_MAC);
- php_stream_context_set(stream, context);
- php_stream_notify_info(context, PHP_STREAM_NOTIFY_CONNECT, NULL, 0);
- if (header_init && context && php_stream_context_get_option(context, "http", "max_redirects", &tmpzval) == SUCCESS) {
- SEPARATE_ZVAL(tmpzval);
- convert_to_long_ex(tmpzval);
- redirect_max = Z_LVAL_PP(tmpzval);
- }
- if (context && php_stream_context_get_option(context, "http", "method", &tmpzval) == SUCCESS) {
- if (Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval) > 0) {
- /* As per the RFC, automatically redirected requests MUST NOT use other methods than
- * GET and HEAD unless it can be confirmed by the user */
- if (!redirected
- || (Z_STRLEN_PP(tmpzval) == 3 && memcmp("GET", Z_STRVAL_PP(tmpzval), 3) == 0)
- || (Z_STRLEN_PP(tmpzval) == 4 && memcmp("HEAD",Z_STRVAL_PP(tmpzval), 4) == 0)
- ) {
- scratch_len = strlen(path) + 29 + Z_STRLEN_PP(tmpzval);
- scratch = emalloc(scratch_len);
- strlcpy(scratch, Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval) + 1);
- strcat(scratch, " ");
- }
- }
- }
-
- if (context && php_stream_context_get_option(context, "http", "protocol_version", &tmpzval) == SUCCESS) {
- SEPARATE_ZVAL(tmpzval);
- convert_to_double_ex(tmpzval);
- protocol_version_len = spprintf(&protocol_version, 0, "%.1F", Z_DVAL_PP(tmpzval));
- }
- if (!scratch) {
- scratch_len = strlen(path) + 29 + protocol_version_len;
- scratch = emalloc(scratch_len);
- strcpy(scratch, "GET ");
- }
- /* Should we send the entire path in the request line, default to no. */
- if (!request_fulluri &&
- context &&
- php_stream_context_get_option(context, "http", "request_fulluri", &tmpzval) == SUCCESS) {
- zval ztmp = **tmpzval;
- zval_copy_ctor(&ztmp);
- convert_to_boolean(&ztmp);
- request_fulluri = Z_BVAL(ztmp) ? 1 : 0;
- zval_dtor(&ztmp);
- }
- if (request_fulluri) {
- /* Ask for everything */
- strcat(scratch, path);
- } else {
- /* Send the traditional /path/to/file?query_string */
- /* file */
- if (resource->path && *resource->path) {
- strlcat(scratch, resource->path, scratch_len);
- } else {
- strlcat(scratch, "/", scratch_len);
- }
- /* query string */
- if (resource->query) {
- strlcat(scratch, "?", scratch_len);
- strlcat(scratch, resource->query, scratch_len);
- }
- }
- /* protocol version we are speaking */
- if (protocol_version) {
- strlcat(scratch, " HTTP/", scratch_len);
- strlcat(scratch, protocol_version, scratch_len);
- strlcat(scratch, "\r\n", scratch_len);
- efree(protocol_version);
- protocol_version = NULL;
- } else {
- strlcat(scratch, " HTTP/1.0\r\n", scratch_len);
- }
- /* send it */
- php_stream_write(stream, scratch, strlen(scratch));
- if (context && php_stream_context_get_option(context, "http", "header", &tmpzval) == SUCCESS) {
- tmp = NULL;
-
- if (Z_TYPE_PP(tmpzval) == IS_ARRAY) {
- HashPosition pos;
- zval **tmpheader = NULL;
- smart_str tmpstr = {0};
- for (zend_hash_internal_pointer_reset_ex(Z_ARRVAL_PP(tmpzval), &pos);
- SUCCESS == zend_hash_get_current_data_ex(Z_ARRVAL_PP(tmpzval), (void *)&tmpheader, &pos);
- zend_hash_move_forward_ex(Z_ARRVAL_PP(tmpzval), &pos)
- ) {
- if (Z_TYPE_PP(tmpheader) == IS_STRING) {
- smart_str_appendl(&tmpstr, Z_STRVAL_PP(tmpheader), Z_STRLEN_PP(tmpheader));
- smart_str_appendl(&tmpstr, "\r\n", sizeof("\r\n") - 1);
- }
- }
- smart_str_0(&tmpstr);
- /* Remove newlines and spaces from start and end. there's at least one extra \r\n at the end that needs to go. */
- if (tmpstr.c) {
- tmp = php_trim(tmpstr.c, strlen(tmpstr.c), NULL, 0, NULL, 3 TSRMLS_CC);
- smart_str_free(&tmpstr);
- }
- }
- if (Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval)) {
- /* Remove newlines and spaces from start and end php_trim will estrndup() */
- tmp = php_trim(Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval), NULL, 0, NULL, 3 TSRMLS_CC);
- }
- if (tmp && strlen(tmp) > 0) {
- char *s;
- if (!header_init) { /* Remove post headers for redirects */
- int l = strlen(tmp);
- char *s2, *tmp_c = estrdup(tmp);
-
- php_strtolower(tmp_c, l);
- if ((s = strstr(tmp_c, "content-length:"))) {
- if ((s2 = memchr(s, '\n', tmp_c + l - s))) {
- int b = tmp_c + l - 1 - s2;
- memmove(tmp, tmp + (s2 + 1 - tmp_c), b);
- memmove(tmp_c, s2 + 1, b);
-
- } else {
- tmp[s - tmp_c] = *s = '\0';
- }
- l = strlen(tmp_c);
- }
- if ((s = strstr(tmp_c, "content-type:"))) {
- if ((s2 = memchr(s, '\n', tmp_c + l - s))) {
- memmove(tmp, tmp + (s2 + 1 - tmp_c), tmp_c + l - 1 - s2);
- } else {
- tmp[s - tmp_c] = '\0';
- }
- }
- efree(tmp_c);
- tmp_c = php_trim(tmp, strlen(tmp), NULL, 0, NULL, 3 TSRMLS_CC);
- efree(tmp);
- tmp = tmp_c;
- }
- user_headers = estrdup(tmp);
- /* Make lowercase for easy comparison against 'standard' headers */
- php_strtolower(tmp, strlen(tmp));
- if ((s = strstr(tmp, "user-agent:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- have_header |= HTTP_HEADER_USER_AGENT;
- }
- if ((s = strstr(tmp, "host:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- have_header |= HTTP_HEADER_HOST;
- }
- if ((s = strstr(tmp, "from:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- have_header |= HTTP_HEADER_FROM;
- }
- if ((s = strstr(tmp, "authorization:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- have_header |= HTTP_HEADER_AUTH;
- }
- if ((s = strstr(tmp, "content-length:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- have_header |= HTTP_HEADER_CONTENT_LENGTH;
- }
- if ((s = strstr(tmp, "content-type:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- have_header |= HTTP_HEADER_TYPE;
- }
- /* remove Proxy-Authorization header */
- if (use_proxy && use_ssl && (s = strstr(tmp, "proxy-authorization:")) &&
- (s == tmp || *(s-1) == '\r' || *(s-1) == '\n' ||
- *(s-1) == '\t' || *(s-1) == ' ')) {
- char *p = s + sizeof("proxy-authorization:") - 1;
-
- while (s > tmp && (*(s-1) == ' ' || *(s-1) == '\t')) s--;
- while (*p != 0 && *p != '\r' && *p != '\n') p++;
- while (*p == '\r' || *p == '\n') p++;
- if (*p == 0) {
- if (s == tmp) {
- efree(user_headers);
- user_headers = NULL;
- } else {
- while (s > tmp && (*(s-1) == '\r' || *(s-1) == '\n')) s--;
- user_headers[s - tmp] = 0;
- }
- } else {
- memmove(user_headers + (s - tmp), user_headers + (p - tmp), strlen(p) + 1);
- }
- }
- }
- if (tmp) {
- efree(tmp);
- }
- }
- /* auth header if it was specified */
- if (((have_header & HTTP_HEADER_AUTH) == 0) && resource->user) {
- /* decode the strings first */
- php_url_decode(resource->user, strlen(resource->user));
- /* scratch is large enough, since it was made large enough for the whole URL */
- strcpy(scratch, resource->user);
- strcat(scratch, ":");
- /* Note: password is optional! */
- if (resource->pass) {
- php_url_decode(resource->pass, strlen(resource->pass));
- strcat(scratch, resource->pass);
- }
- tmp = (char*)php_base64_encode((unsigned char*)scratch, strlen(scratch), NULL);
-
- if (snprintf(scratch, scratch_len, "Authorization: Basic %s\r\n", tmp) > 0) {
- php_stream_write(stream, scratch, strlen(scratch));
- php_stream_notify_info(context, PHP_STREAM_NOTIFY_AUTH_REQUIRED, NULL, 0);
- }
- efree(tmp);
- tmp = NULL;
- }
- /* if the user has configured who they are, send a From: line */
- {
- char *from_address = php_ini_string("from", sizeof("from"), 0);
- if (((have_header & HTTP_HEADER_FROM) == 0) && from_address[0] != '\0') {
- if (snprintf(scratch, scratch_len, "From: %s\r\n", from_address) > 0)
- php_stream_write(stream, scratch, strlen(scratch));
- }
- }
- /* Send Host: header so name-based virtual hosts work */
- if ((have_header & HTTP_HEADER_HOST) == 0) {
- if ((use_ssl && resource->port != 443 && resource->port != 0) ||
- (!use_ssl && resource->port != 80 && resource->port != 0)) {
- if (snprintf(scratch, scratch_len, "Host: %s:%i\r\n", resource->host, resource->port) > 0)
- php_stream_write(stream, scratch, strlen(scratch));
- } else {
- if (snprintf(scratch, scratch_len, "Host: %s\r\n", resource->host) > 0) {
- php_stream_write(stream, scratch, strlen(scratch));
- }
- }
- }
- if (context &&
- php_stream_context_get_option(context, "http", "user_agent", &ua_zval) == SUCCESS &&
- Z_TYPE_PP(ua_zval) == IS_STRING) {
- ua_str = Z_STRVAL_PP(ua_zval);
- } else if (FG(user_agent)) {
- ua_str = FG(user_agent);
- }
- if (((have_header & HTTP_HEADER_USER_AGENT) == 0) && ua_str) {
- #define _UA_HEADER "User-Agent: %s\r\n"
- char *ua;
- size_t ua_len;
-
- ua_len = sizeof(_UA_HEADER) + strlen(ua_str);
-
- /* ensure the header is only sent if user_agent is not blank */
- if (ua_len > sizeof(_UA_HEADER)) {
- ua = emalloc(ua_len + 1);
- if ((ua_len = slprintf(ua, ua_len, _UA_HEADER, ua_str)) > 0) {
- ua[ua_len] = 0;
- php_stream_write(stream, ua, ua_len);
- } else {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot construct User-agent header");
- }
- if (ua) {
- efree(ua);
- }
- }
- }
- if (user_headers) {
- /* A bit weird, but some servers require that Content-Length be sent prior to Content-Type for POST
- * see bug #44603 for details. Since Content-Type maybe part of user's headers we need to do this check first.
- */
- if (
- header_init &&
- context &&
- !(have_header & HTTP_HEADER_CONTENT_LENGTH) &&
- php_stream_context_get_option(context, "http", "content", &tmpzval) == SUCCESS &&
- Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval) > 0
- ) {
- scratch_len = slprintf(scratch, scratch_len, "Content-Length: %d\r\n", Z_STRLEN_PP(tmpzval));
- php_stream_write(stream, scratch, scratch_len);
- have_header |= HTTP_HEADER_CONTENT_LENGTH;
- }
- php_stream_write(stream, user_headers, strlen(user_headers));
- php_stream_write(stream, "\r\n", sizeof("\r\n")-1);
- efree(user_headers);
- }
- /* Request content, such as for POST requests */
- if (header_init && context &&
- php_stream_context_get_option(context, "http", "content", &tmpzval) == SUCCESS &&
- Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval) > 0) {
- if (!(have_header & HTTP_HEADER_CONTENT_LENGTH)) {
- scratch_len = slprintf(scratch, scratch_len, "Content-Length: %d\r\n", Z_STRLEN_PP(tmpzval));
- php_stream_write(stream, scratch, scratch_len);
- }
- if (!(have_header & HTTP_HEADER_TYPE)) {
- php_stream_write(stream, "Content-Type: application/x-www-form-urlencoded\r\n",
- sizeof("Content-Type: application/x-www-form-urlencoded\r\n") - 1);
- php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Content-type not specified assuming application/x-www-form-urlencoded");
- }
- php_stream_write(stream, "\r\n", sizeof("\r\n")-1);
- php_stream_write(stream, Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval));
- php_stream_write(stream, "\r\n\r\n", sizeof("\r\n\r\n")-1);
- } else {
- php_stream_write(stream, "\r\n", sizeof("\r\n")-1);
- }
- location[0] = '\0';
- if (!EG(active_symbol_table)) {
- zend_rebuild_symbol_table(TSRMLS_C);
- }
- if (header_init) {
- zval *ztmp;
- MAKE_STD_ZVAL(ztmp);
- array_init(ztmp);
- ZEND_SET_SYMBOL(EG(active_symbol_table), "http_response_header", ztmp);
- }
- {
- zval **rh;
- zend_hash_find(EG(active_symbol_table), "http_response_header", sizeof("http_response_header"), (void **) &rh);
- response_header = *rh;
- }
- if (!php_stream_eof(stream)) {
- size_t tmp_line_len;
- /* get response header */
- if (php_stream_get_line(stream, tmp_line, sizeof(tmp_line) - 1, &tmp_line_len) != NULL) {
- zval *http_response;
- int response_code;
- if (tmp_line_len > 9) {
- response_code = atoi(tmp_line + 9);
- } else {
- response_code = 0;
- }
- if (context && SUCCESS==php_stream_context_get_option(context, "http", "ignore_errors", &tmpzval)) {
- ignore_errors = zend_is_true(*tmpzval);
- }
- /* when we request only the header, don't fail even on error codes */
- if ((options & STREAM_ONLY_GET_HEADERS) || ignore_errors) {
- reqok = 1;
- }
- /* all status codes in the 2xx range are defined by the specification as successful;
- * all status codes in the 3xx range are for redirection, and so also should never
- * fail */
- if (response_code >= 200 && response_code < 400) {
- reqok = 1;
- } else {
- switch(response_code) {
- case 403:
- php_stream_notify_error(context, PHP_STREAM_NOTIFY_AUTH_RESULT,
- tmp_line, response_code);
- break;
- default:
- /* safety net in the event tmp_line == NULL */
- if (!tmp_line_len) {
- tmp_line[0] = '\0';
- }
- php_stream_notify_error(context, PHP_STREAM_NOTIFY_FAILURE,
- tmp_line, response_code);
- }
- }
- if (tmp_line[tmp_line_len - 1] == '\n') {
- --tmp_line_len;
- if (tmp_line[tmp_line_len - 1] == '\r') {
- --tmp_line_len;
- }
- }
- MAKE_STD_ZVAL(http_response);
- ZVAL_STRINGL(http_response, tmp_line, tmp_line_len, 1);
- zend_hash_next_index_insert(Z_ARRVAL_P(response_header), &http_response, sizeof(zval *), NULL);
- }
- } else {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "HTTP request failed, unexpected end of socket!");
- goto out;
- }
-
- /* read past HTTP headers */
-
- http_header_line = emalloc(HTTP_HEADER_BLOCK_SIZE);
- while (!body && !php_stream_eof(stream)) {
- size_t http_header_line_length;
- if (php_stream_get_line(stream, http_header_line, HTTP_HEADER_BLOCK_SIZE, &http_header_line_length) && *http_header_line != '\n' && *http_header_line != '\r') {
- char *e = http_header_line + http_header_line_length - 1;
- if (*e != '\n') {
- do { /* partial header */
- php_stream_get_line(stream, http_header_line, HTTP_HEADER_BLOCK_SIZE, &http_header_line_length);
- e = http_header_line + http_header_line_length - 1;
- } while (*e != '\n');
- continue;
- }
- while (*e == '\n' || *e == '\r') {
- e--;
- }
- http_header_line_length = e - http_header_line + 1;
- http_header_line[http_header_line_length] = '\0';
- if (!strncasecmp(http_header_line, "Location: ", 10)) {
- if (context && php_stream_context_get_option(context, "http", "follow_location", &tmpzval) == SUCCESS) {
- SEPARATE_ZVAL(tmpzval);
- convert_to_long_ex(tmpzval);
- follow_location = Z_LVAL_PP(tmpzval);
- }
- strlcpy(location, http_header_line + 10, sizeof(location));
- } else if (!strncasecmp(http_header_line, "Content-Type: ", 14)) {
- php_stream_notify_info(context, PHP_STREAM_NOTIFY_MIME_TYPE_IS, http_header_line + 14, 0);
- } else if (!strncasecmp(http_header_line, "Content-Length: ", 16)) {
- file_size = atoi(http_header_line + 16);
- php_stream_notify_file_size(context, file_size, http_header_line, 0);
- } else if (!strncasecmp(http_header_line, "Transfer-Encoding: chunked", sizeof("Transfer-Encoding: chunked"))) {
- /* create filter to decode response body */
- if (!(options & STREAM_ONLY_GET_HEADERS)) {
- long decode = 1;
- if (context && php_stream_context_get_option(context, "http", "auto_decode", &tmpzval) == SUCCESS) {
- SEPARATE_ZVAL(tmpzval);
- convert_to_boolean(*tmpzval);
- decode = Z_LVAL_PP(tmpzval);
- }
- if (decode) {
- transfer_encoding = php_stream_filter_create("dechunk", NULL, php_stream_is_persistent(stream) TSRMLS_CC);
- if (transfer_encoding) {
- /* don't store transfer-encodeing header */
- continue;
- }
- }
- }
- }
- if (http_header_line[0] == '\0') {
- body = 1;
- } else {
- zval *http_header;
- MAKE_STD_ZVAL(http_header);
- ZVAL_STRINGL(http_header, http_header_line, http_header_line_length, 1);
-
- zend_hash_next_index_insert(Z_ARRVAL_P(response_header), &http_header, sizeof(zval *), NULL);
- }
- } else {
- break;
- }
- }
- if (!reqok || (location[0] != '\0' && follow_location)) {
- if (!follow_location || (((options & STREAM_ONLY_GET_HEADERS) || ignore_errors) && redirect_max <= 1)) {
- goto out;
- }
- if (location[0] != '\0')
- php_stream_notify_info(context, PHP_STREAM_NOTIFY_REDIRECTED, location, 0);
- if (context) { /* keep the context for the next try */
- zend_list_addref(context->rsrc_id);
- }
- php_stream_close(stream);
- stream = NULL;
- if (location[0] != '\0') {
- char new_path[HTTP_HEADER_BLOCK_SIZE];
- char loc_path[HTTP_HEADER_BLOCK_SIZE];
- *new_path='\0';
- if (strlen(location)<8 || (strncasecmp(location, "http://", sizeof("http://")-1) &&
- strncasecmp(location, "https://", sizeof("https://")-1) &&
- strncasecmp(location, "ftp://", sizeof("ftp://")-1) &&
- strncasecmp(location, "ftps://", sizeof("ftps://")-1)))
- {
- if (*location != '/') {
- if (*(location+1) != '\0' && resource->path) {
- char *s = strrchr(resource->path, '/');
- if (!s) {
- s = resource->path;
- if (!s[0]) {
- efree(s);
- s = resource->path = estrdup("/");
- } else {
- *s = '/';
- }
- }
- s[1] = '\0';
- if (resource->path && *(resource->path) == '/' && *(resource->path + 1) == '\0') {
- snprintf(loc_path, sizeof(loc_path) - 1, "%s%s", resource->path, location);
- } else {
- snprintf(loc_path, sizeof(loc_path) - 1, "%s/%s", resource->path, location);
- }
- } else {
- snprintf(loc_path, sizeof(loc_path) - 1, "/%s", location);
- }
- } else {
- strlcpy(loc_path, location, sizeof(loc_path));
- }
- if ((use_ssl && resource->port != 443) || (!use_ssl && resource->port != 80)) {
- snprintf(new_path, sizeof(new_path) - 1, "%s://%s:%d%s", resource->scheme, resource->host, resource->port, loc_path);
- } else {
- snprintf(new_path, sizeof(new_path) - 1, "%s://%s%s", resource->scheme, resource->host, loc_path);
- }
- } else {
- strlcpy(new_path, location, sizeof(new_path));
- }
- php_url_free(resource);
- /* check for invalid redirection URLs */
- if ((resource = php_url_parse(new_path)) == NULL) {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Invalid redirect URL! %s", new_path);
- goto out;
- }
- #define CHECK_FOR_CNTRL_CHARS(val) { \
- if (val) { \
- unsigned char *s, *e; \
- int l; \
- l = php_url_decode(val, strlen(val)); \
- s = (unsigned char*)val; e = s + l; \
- while (s < e) { \
- if (iscntrl(*s)) { \
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Invalid redirect URL! %s", new_path); \
- goto out; \
- } \
- s++; \
- } \
- } \
- }
- /* check for control characters in login, password & path */
- if (strncasecmp(new_path, "http://", sizeof("http://") - 1) || strncasecmp(new_path, "https://", sizeof("https://") - 1)) {
- CHECK_FOR_CNTRL_CHARS(resource->user)
- CHECK_FOR_CNTRL_CHARS(resource->pass)
- CHECK_FOR_CNTRL_CHARS(resource->path)
- }
- stream = php_stream_url_wrap_http_ex(wrapper, new_path, mode, options, opened_path, context, --redirect_max, HTTP_WRAPPER_REDIRECTED STREAMS_CC TSRMLS_CC);
- } else {
- php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "HTTP request failed! %s", tmp_line);
- }
- }
- out:
- if (protocol_version) {
- efree(protocol_version);
- }
- if (http_header_line) {
- efree(http_header_line);
- }
- if (scratch) {
- efree(scratch);
- }
- if (resource) {
- php_url_free(resource);
- }
- if (stream) {
- if (header_init) {
- zval_add_ref(&response_header);
- stream->wrapperdata = response_header;
- }
- php_stream_notify_progress_init(context, 0, file_size);
-
- /* Restore original chunk size now that we're done with headers */
- if (options & STREAM_WILL_CAST)
- php_stream_set_chunk_size(stream, chunk_size);
- /* restore the users auto-detect-line-endings setting */
- stream->flags |= eol_detect;
-
- /* as far as streams are concerned, we are now at the start of
- * the stream */
- stream->position = 0;
- /* restore mode */
- strlcpy(stream->mode, mode, sizeof(stream->mode));
- if (transfer_encoding) {
- php_stream_filter_append(&stream->readfilters, transfer_encoding);
- }
- } else if (transfer_encoding) {
- php_stream_filter_free(transfer_encoding TSRMLS_CC);
- }
- return stream;
- }
- /* }}} */
- php_stream *php_stream_url_wrap_http(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC) /* {{{ */
- {
- return php_stream_url_wrap_http_ex(wrapper, path, mode, options, opened_path, context, PHP_URL_REDIRECT_MAX, HTTP_WRAPPER_HEADER_INIT STREAMS_CC TSRMLS_CC);
- }
- /* }}} */
- static int php_stream_http_stream_stat(php_stream_wrapper *wrapper, php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC) /* {{{ */
- {
- /* one day, we could fill in the details based on Date: and Content-Length:
- * headers. For now, we return with a failure code to prevent the underlying
- * file's details from being used instead. */
- return -1;
- }
- /* }}} */
- static php_stream_wrapper_ops http_stream_wops = {
- php_stream_url_wrap_http,
- NULL, /* stream_close */
- php_stream_http_stream_stat,
- NULL, /* stat_url */
- NULL, /* opendir */
- "http",
- NULL, /* unlink */
- NULL, /* rename */
- NULL, /* mkdir */
- NULL /* rmdir */
- };
- PHPAPI php_stream_wrapper php_stream_http_wrapper = {
- &http_stream_wops,
- NULL,
- 1 /* is_url */
- };
- /*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim600: sw=4 ts=4 fdm=marker
- * vim<600: sw=4 ts=4
- */