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