git.m6w6.name Git - m6w6/ext-http/blob - http_api.c

   1 /*
   2    +----------------------------------------------------------------------+
   3    | PECL :: http                                                         |
   4    +----------------------------------------------------------------------+
   5    | This source file is subject to version 3.0 of the PHP license, that  |
   6    | is bundled with this package in the file LICENSE, and is available   |
   7    | through the world-wide-web at http://www.php.net/license/3_0.txt.    |
   8    | If you did not receive a copy of the PHP license and are unable to   |
   9    | obtain it through the world-wide-web, please send a note to          |
  10    | license@php.net so we can mail you a copy immediately.               |
  11    +----------------------------------------------------------------------+
  12    | Copyright (c) 2004-2005 Michael Wallner <mike@php.net>               |
  13    +----------------------------------------------------------------------+
  14 */
  15
  16 /* $Id$ */
  17
  18 #ifdef HAVE_CONFIG_H
  19 #       include "config.h"
  20 #endif
  21 #include "php.h"
  22
  23 #include "SAPI.h"
  24 #include "ext/standard/url.h"
  25 #include "ext/standard/head.h"
  26
  27 #include "php_http.h"
  28 #include "php_http_std_defs.h"
  29 #include "php_http_api.h"
  30 #include "php_http_headers_api.h"
  31 #include "php_http_request_api.h"
  32 #include "php_http_send_api.h"
  33
  34 #ifdef ZEND_ENGINE_2
  35 #       include "zend_exceptions.h"
  36 #       include "php_http_exception_object.h"
  37 #endif
  38
  39 #include <ctype.h>
  40
  41 #ifdef HTTP_HAVE_MAGIC
  42 #       if defined(PHP_WIN32) && !defined(USE_MAGIC_DLL) && !defined(USE_MAGIC_STATIC)
  43 #               define USE_MAGIC_STATIC
  44 #       endif
  45 #       include <magic.h>
  46 #endif
  47
  48 ZEND_EXTERN_MODULE_GLOBALS(http);
  49
  50 static zend_bool http_support_ssl;
  51
  52 PHP_MINIT_FUNCTION(http_support)
  53 {
  54         http_support_ssl = http_request_supports_ssl();
  55
  56         HTTP_LONG_CONSTANT("HTTP_SUPPORT", HTTP_SUPPORT);
  57         HTTP_LONG_CONSTANT("HTTP_SUPPORT_REQUESTS", HTTP_SUPPORT_REQUESTS);
  58         HTTP_LONG_CONSTANT("HTTP_SUPPORT_MAGICMIME", HTTP_SUPPORT_MAGICMIME);
  59         HTTP_LONG_CONSTANT("HTTP_SUPPORT_ENCODINGS", HTTP_SUPPORT_ENCODINGS);
  60         HTTP_LONG_CONSTANT("HTTP_SUPPORT_MHASHETAGS", HTTP_SUPPORT_MHASHETAGS);
  61         HTTP_LONG_CONSTANT("HTTP_SUPPORT_SSLREQUESTS", HTTP_SUPPORT_SSLREQUESTS);
  62
  63         return SUCCESS;
  64 }
  65
  66 PHP_HTTP_API long _http_support(long feature)
  67 {
  68         long support = HTTP_SUPPORT;
  69
  70 #ifdef HTTP_HAVE_CURL
  71         support |= HTTP_SUPPORT_REQUESTS;
  72         if (http_support_ssl) {
  73                 support |= HTTP_SUPPORT_SSLREQUESTS;
  74         }
  75 #endif
  76 #ifdef HTTP_HAVE_MHASH
  77         support |= HTTP_SUPPORT_MHASHETAGS;
  78 #endif
  79 #ifdef HTTP_HAVE_MAGIC
  80         support |= HTTP_SUPPORT_MAGICMIME;
  81 #endif
  82 #ifdef HTTP_HAVE_ZLIB
  83         support |= HTTP_SUPPORT_ENCODINGS;
  84 #endif
  85
  86         if (feature) {
  87                 return (feature == (support & feature));
  88         }
  89         return support;
  90 }
  91
  92 /* char *pretty_key(char *, size_t, zend_bool, zend_bool) */
  93 char *_http_pretty_key(char *key, size_t key_len, zend_bool uctitle, zend_bool xhyphen)
  94 {
  95         if (key && key_len) {
  96                 size_t i;
  97                 int wasalpha;
  98                 if (wasalpha = isalpha((int) key[0])) {
  99                         key[0] = (char) (uctitle ? toupper((int) key[0]) : tolower((int) key[0]));
 100                 }
 101                 for (i = 1; i < key_len; i++) {
 102                         if (isalpha((int) key[i])) {
 103                                 key[i] = (char) (((!wasalpha) && uctitle) ? toupper((int) key[i]) : tolower((int) key[i]));
 104                                 wasalpha = 1;
 105                         } else {
 106                                 if (xhyphen && (key[i] == '_')) {
 107                                         key[i] = '-';
 108                                 }
 109                                 wasalpha = 0;
 110                         }
 111                 }
 112         }
 113         return key;
 114 }
 115 /* }}} */
 116
 117 /* {{{ */
 118 void _http_key_list_default_decoder(const char *encoded, size_t encoded_len, char **decoded, size_t *decoded_len TSRMLS_DC)
 119 {
 120         *decoded = estrndup(encoded, encoded_len);
 121         *decoded_len = (size_t) php_url_decode(*decoded, encoded_len);
 122 }
 123 /* }}} */
 124
 125 /* {{{ */
 126 STATUS _http_parse_key_list(const char *list, HashTable *items, char separator, http_key_list_decode_t decode, zend_bool first_entry_is_name_value_pair TSRMLS_DC)
 127 {
 128         const char *key = list, *val = NULL;
 129         int vallen = 0, keylen = 0, done = 0;
 130         zval array;
 131
 132         INIT_ZARR(array, items);
 133
 134         if (!(val = strchr(list, '='))) {
 135                 return FAILURE;
 136         }
 137
 138 #define HTTP_KEYLIST_VAL(array, k, str, len) \
 139         { \
 140                 char *decoded; \
 141                 size_t decoded_len; \
 142                 if (decode) { \
 143                         decode(str, len, &decoded, &decoded_len TSRMLS_CC); \
 144                 } else { \
 145                         decoded_len = len; \
 146                         decoded = estrndup(str, decoded_len); \
 147                 } \
 148                 add_assoc_stringl(array, k, decoded, decoded_len, 0); \
 149         }
 150 #define HTTP_KEYLIST_FIXKEY() \
 151         { \
 152                         while (isspace(*key)) ++key; \
 153                         keylen = val - key; \
 154                         while (isspace(key[keylen - 1])) --keylen; \
 155         }
 156 #define HTTP_KEYLIST_FIXVAL() \
 157         { \
 158                         ++val; \
 159                         while (isspace(*val)) ++val; \
 160                         vallen = key - val; \
 161                         while (isspace(val[vallen - 1])) --vallen; \
 162         }
 163
 164         HTTP_KEYLIST_FIXKEY();
 165
 166         if (first_entry_is_name_value_pair) {
 167                 HTTP_KEYLIST_VAL(&array, "name", key, keylen);
 168
 169                 /* just one name=value */
 170                 if (!(key = strchr(val, separator))) {
 171                         key = val + strlen(val);
 172                         HTTP_KEYLIST_FIXVAL();
 173                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 174                         return SUCCESS;
 175                 }
 176                 /* additional info appended */
 177                 else {
 178                         HTTP_KEYLIST_FIXVAL();
 179                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 180                 }
 181         }
 182
 183         do {
 184                 char *keydup = NULL;
 185
 186                 if (!(val = strchr(key, '='))) {
 187                         break;
 188                 }
 189
 190                 /* start at 0 if first_entry_is_name_value_pair==0 */
 191                 if (zend_hash_num_elements(items)) {
 192                         ++key;
 193                 }
 194
 195                 HTTP_KEYLIST_FIXKEY();
 196                 keydup = estrndup(key, keylen);
 197                 if (!(key = strchr(val, separator))) {
 198                         done = 1;
 199                         key = val + strlen(val);
 200                 }
 201                 HTTP_KEYLIST_FIXVAL();
 202                 HTTP_KEYLIST_VAL(&array, keydup, val, vallen);
 203                 efree(keydup);
 204         } while (!done);
 205
 206         return SUCCESS;
 207 }
 208 /* }}} */
 209
 210 /* {{{ void http_error(long, long, char*) */
 211 void _http_error_ex(long type TSRMLS_DC, long code, const char *format, ...)
 212 {
 213         va_list args;
 214
 215         va_start(args, format);
 216 #ifdef ZEND_ENGINE_2
 217         if ((type == E_THROW) || (PG(error_handling) == EH_THROW)) {
 218                 char *message;
 219
 220                 vspprintf(&message, 0, format, args);
 221                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
 222                 efree(message);
 223         } else
 224 #endif
 225         php_verror(NULL, "", type, format, args TSRMLS_CC);
 226         va_end(args);
 227 }
 228 /* }}} */
 229
 230 /* {{{ void http_log(char *, char *, char *) */
 231 void _http_log_ex(char *file, const char *ident, const char *message TSRMLS_DC)
 232 {
 233         time_t now;
 234         struct tm nowtm;
 235         char datetime[128];
 236
 237         time(&now);
 238         strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", php_localtime_r(&now, &nowtm));
 239
 240 #define HTTP_LOG_WRITE(file, type, msg) \
 241         if (file && *file) { \
 242                 php_stream *log = php_stream_open_wrapper(file, "ab", REPORT_ERRORS|ENFORCE_SAFE_MODE, NULL); \
 243                  \
 244                 if (log) { \
 245                         php_stream_printf(log TSRMLS_CC, "%s\t[%s]\t%s\t<%s>%s", datetime, type, msg, SG(request_info).request_uri, PHP_EOL); \
 246                         php_stream_close(log); \
 247                 } \
 248          \
 249         }
 250
 251         HTTP_LOG_WRITE(file, ident, message);
 252         HTTP_LOG_WRITE(HTTP_G(log).composite, ident, message);
 253 }
 254 /* }}} */
 255
 256 /* {{{ STATUS http_exit(int, char*, char*) */
 257 STATUS _http_exit_ex(int status, char *header, char *body, zend_bool send_header TSRMLS_DC)
 258 {
 259         if (status || send_header) {
 260                 if (SUCCESS != http_send_status_header(status, send_header ? header : NULL)) {
 261                         http_error_ex(HE_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
 262                         STR_FREE(header);
 263                         STR_FREE(body);
 264                         return FAILURE;
 265                 }
 266         }
 267
 268         if (php_header(TSRMLS_C) && body) {
 269                 PHPWRITE(body, strlen(body));
 270         }
 271
 272         switch (status)
 273         {
 274                 case 301:       http_log(HTTP_G(log).redirect, "301-REDIRECT", header);                 break;
 275                 case 302:       http_log(HTTP_G(log).redirect, "302-REDIRECT", header);                 break;
 276                 case 303:       http_log(HTTP_G(log).redirect, "303-REDIRECT", header);                 break;
 277                 case 307:       http_log(HTTP_G(log).redirect, "307-REDIRECT", header);                 break;
 278                 case 304:       http_log(HTTP_G(log).cache, "304-CACHE", header);                               break;
 279                 case 405:       http_log(HTTP_G(log).allowed_methods, "405-ALLOWED", header);   break;
 280                 default:        http_log(NULL, header, body);                                                                   break;
 281         }
 282
 283         STR_FREE(header);
 284         STR_FREE(body);
 285
 286         zend_bailout();
 287         /* fake */
 288         return SUCCESS;
 289 }
 290 /* }}} */
 291
 292 /* {{{ STATUS http_check_method(char *) */
 293 STATUS _http_check_method_ex(const char *method, const char *methods)
 294 {
 295         const char *found;
 296
 297         if (    (found = strstr(methods, method)) &&
 298                         (found == method || !isalpha(found[-1])) &&
 299                         (!isalpha(found[strlen(method) + 1]))) {
 300                 return SUCCESS;
 301         }
 302         return FAILURE;
 303 }
 304 /* }}} */
 305
 306 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 307 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 308 {
 309         zval **hsv;
 310         zval **var;
 311
 312         if (SUCCESS != zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &hsv)) {
 313                 return NULL;
 314         }
 315         if (SUCCESS != zend_hash_find(Z_ARRVAL_PP(hsv), (char *) key, key_size, (void **) &var)) {
 316                 return NULL;
 317         }
 318         if (check && !(Z_STRVAL_PP(var) && Z_STRLEN_PP(var))) {
 319                 return NULL;
 320         }
 321         return *var;
 322 }
 323 /* }}} */
 324
 325 /* {{{ STATUS http_get_request_body(char **, size_t *) */
 326 PHP_HTTP_API STATUS _http_get_request_body_ex(char **body, size_t *length, zend_bool dup TSRMLS_DC)
 327 {
 328         *length = 0;
 329         *body = NULL;
 330
 331         if (SG(request_info).raw_post_data) {
 332                 *length = SG(request_info).raw_post_data_length;
 333                 *body = (char *) (dup ? estrndup(SG(request_info).raw_post_data, *length) : SG(request_info).raw_post_data);
 334                 return SUCCESS;
 335         }
 336         return FAILURE;
 337 }
 338 /* }}} */
 339
 340
 341 /* {{{ char *http_guess_content_type(char *magic_file, long magic_mode, void *data, size_t size, http_send_mode mode) */
 342 PHP_HTTP_API char *_http_guess_content_type(const char *magicfile, long magicmode, void *data_ptr, size_t data_len, http_send_mode data_mode TSRMLS_DC)
 343 {
 344         char *ct = NULL;
 345
 346 #ifdef HTTP_HAVE_MAGIC
 347         /*      magic_load() fails if MAGIC_MIME is set because it
 348                 cowardly adds .mime to the file name */
 349         struct magic_set *magic = magic_open(magicmode &~ MAGIC_MIME);
 350
 351         if (!magic) {
 352                 http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "Invalid magic mode: %ld", magicmode);
 353         } else if (-1 == magic_load(magic, magicfile)) {
 354                 http_error_ex(HE_WARNING, HTTP_E_RUNTIME, "Failed to load magic database '%s' (%s)", magicfile, magic_error(magic));
 355         } else {
 356                 const char *ctype = NULL;
 357
 358                 magic_setflags(magic, magicmode);
 359
 360                 switch (data_mode)
 361                 {
 362                         case SEND_RSRC:
 363                         {
 364                                 char *buffer;
 365                                 size_t b_len;
 366
 367                                 b_len = php_stream_copy_to_mem(data_ptr, &buffer, 65536, 0);
 368                                 ctype = magic_buffer(magic, buffer, b_len);
 369                                 efree(buffer);
 370                         }
 371                         break;
 372
 373                         case SEND_DATA:
 374                                 ctype = magic_buffer(magic, data_ptr, data_len);
 375                         break;
 376
 377                         default:
 378                                 ctype = magic_file(magic, data_ptr);
 379                         break;
 380                 }
 381
 382                 if (ctype) {
 383                         ct = estrdup(ctype);
 384                 } else {
 385                         http_error_ex(HE_WARNING, HTTP_E_RUNTIME, "Failed to guess Content-Type: %s", magic_error(magic));
 386                 }
 387         }
 388         if (magic) {
 389                 magic_close(magic);
 390         }
 391 #else
 392         http_error(HE_WARNING, HTTP_E_RUNTIME, "Cannot guess Content-Type; libmagic not available");
 393 #endif
 394
 395         return ct;
 396 }
 397 /* }}} */
 398 /*
 399  * Local variables:
 400  * tab-width: 4
 401  * c-basic-offset: 4
 402  * End:
 403  * vim600: noet sw=4 ts=4 fdm=marker
 404  * vim<600: noet sw=4 ts=4
 405  */
 406