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
  22 #include <ctype.h>
  23
  24 #include "php.h"
  25 #include "ext/standard/url.h"
  26
  27 #include "SAPI.h"
  28
  29 #include "php_http.h"
  30 #include "php_http_std_defs.h"
  31 #include "php_http_api.h"
  32 #include "php_http_headers_api.h"
  33 #include "php_http_send_api.h"
  34
  35 #ifdef ZEND_ENGINE_2
  36 #       include "zend_exceptions.h"
  37 #       include "php_http_exception_object.h"
  38 #endif
  39
  40 ZEND_EXTERN_MODULE_GLOBALS(http);
  41
  42 /* char *pretty_key(char *, size_t, zend_bool, zebd_bool) */
  43 char *_http_pretty_key(char *key, size_t key_len, zend_bool uctitle, zend_bool xhyphen)
  44 {
  45         if (key && key_len) {
  46                 size_t i;
  47                 int wasalpha;
  48                 if (wasalpha = isalpha((int) key[0])) {
  49                         key[0] = (char) (uctitle ? toupper((int) key[0]) : tolower((int) key[0]));
  50                 }
  51                 for (i = 1; i < key_len; i++) {
  52                         if (isalpha((int) key[i])) {
  53                                 key[i] = (char) (((!wasalpha) && uctitle) ? toupper((int) key[i]) : tolower((int) key[i]));
  54                                 wasalpha = 1;
  55                         } else {
  56                                 if (xhyphen && (key[i] == '_')) {
  57                                         key[i] = '-';
  58                                 }
  59                                 wasalpha = 0;
  60                         }
  61                 }
  62         }
  63         return key;
  64 }
  65 /* }}} */
  66
  67 /* {{{ */
  68 void _http_key_list_default_decoder(const char *encoded, size_t encoded_len, char **decoded, size_t *decoded_len TSRMLS_DC)
  69 {
  70         *decoded = estrndup(encoded, encoded_len);
  71         *decoded_len = (size_t) php_url_decode(*decoded, encoded_len);
  72 }
  73 /* }}} */
  74
  75 /* {{{ */
  76 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)
  77 {
  78         const char *key = list, *val = NULL;
  79         int vallen = 0, keylen = 0, done = 0;
  80         zval array;
  81
  82         Z_ARRVAL(array) = items;
  83
  84         if (!(val = strchr(list, '='))) {
  85                 return FAILURE;
  86         }
  87
  88 #define HTTP_KEYLIST_VAL(array, k, str, len) \
  89         { \
  90                 char *decoded; \
  91                 size_t decoded_len; \
  92                 if (decode) { \
  93                         decode(str, len, &decoded, &decoded_len TSRMLS_CC); \
  94                 } else { \
  95                         decoded = estrdup(str); \
  96                         decoded_len = len; \
  97                 } \
  98                 add_assoc_stringl(array, k, decoded, decoded_len, 0); \
  99         }
 100 #define HTTP_KEYLIST_FIXKEY() \
 101         { \
 102                         while (isspace(*key)) ++key; \
 103                         keylen = val - key; \
 104                         while (isspace(key[keylen - 1])) --keylen; \
 105         }
 106 #define HTTP_KEYLIST_FIXVAL() \
 107         { \
 108                         ++val; \
 109                         while (isspace(*val)) ++val; \
 110                         vallen = key - val; \
 111                         while (isspace(val[vallen - 1])) --vallen; \
 112         }
 113
 114         HTTP_KEYLIST_FIXKEY();
 115
 116         if (first_entry_is_name_value_pair) {
 117                 HTTP_KEYLIST_VAL(&array, "name", key, keylen);
 118
 119                 /* just one name=value */
 120                 if (!(key = strchr(val, separator))) {
 121                         key = val + strlen(val);
 122                         HTTP_KEYLIST_FIXVAL();
 123                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 124                         goto list_done;
 125                 }
 126                 /* additional info appended */
 127                 else {
 128                         HTTP_KEYLIST_FIXVAL();
 129                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 130                 }
 131         }
 132
 133         do {
 134                 char *keydup = NULL;
 135
 136                 if (!(val = strchr(key, '='))) {
 137                         break;
 138                 }
 139
 140                 /* start at 0 if first_entry_is_name_value_pair==0 */
 141                 if (zend_hash_num_elements(items)) {
 142                         ++key;
 143                 }
 144
 145                 HTTP_KEYLIST_FIXKEY();
 146                 keydup = estrndup(key, keylen);
 147                 if (!(key = strchr(val, separator))) {
 148                         done = 1;
 149                         key = val + strlen(val);
 150                 }
 151                 HTTP_KEYLIST_FIXVAL();
 152                 HTTP_KEYLIST_VAL(&array, keydup, val, vallen);
 153                 efree(keydup);
 154         } while (!done);
 155
 156 list_done:
 157         return SUCCESS;
 158 }
 159
 160 /* {{{ void http_error(long, long, char*) */
 161 void _http_error_ex(long type, long code, const char *format, ...)
 162 {
 163         va_list args;
 164         TSRMLS_FETCH();
 165
 166         va_start(args, format);
 167         if (type == E_THROW) {
 168 #ifdef ZEND_ENGINE_2
 169                 char *message;
 170                 vspprintf(&message, 0, format, args);
 171                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
 172 #else
 173                 type = E_WARNING;
 174 #endif
 175         }
 176         if (type != E_THROW) {
 177                 php_verror(NULL, "", type, format, args TSRMLS_CC);
 178         }
 179         va_end(args);
 180 }
 181 /* }}} */
 182
 183 /* {{{ STATUS http_exit(int, char*) */
 184 STATUS _http_exit_ex(int status, char *header, zend_bool free_header TSRMLS_DC)
 185 {
 186         if (SUCCESS != http_send_status_header(status, header)) {
 187                 http_error_ex(E_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
 188                 if (free_header && header) {
 189                         efree(header);
 190                 }
 191                 return FAILURE;
 192         }
 193         if (free_header && header) {
 194                 efree(header);
 195         }
 196         zend_bailout();
 197         /* fake */
 198         return SUCCESS;
 199 }
 200 /* }}} */
 201
 202 /* {{{ STATUS http_check_method(char *) */
 203 STATUS _http_check_method_ex(const char *method, const char *methods)
 204 {
 205         const char *found;
 206
 207         if (    (found = strstr(methods, method)) &&
 208                         (found == method || !isalpha(found[-1])) &&
 209                         (!isalpha(found[strlen(method) + 1]))) {
 210                 return SUCCESS;
 211         }
 212         return FAILURE;
 213 }
 214 /* }}} */
 215
 216 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 217 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 218 {
 219         zval **var;
 220         if (SUCCESS == zend_hash_find(HTTP_SERVER_VARS, (char *) key, key_size, (void **) &var)) {
 221                 if (check) {
 222                         return Z_STRVAL_PP(var) && Z_STRLEN_PP(var) ? *var : NULL;
 223                 } else {
 224                         return *var;
 225                 }
 226         }
 227         return NULL;
 228 }
 229 /* }}} */
 230
 231 /* {{{ zend_bool http_get_request_body(char **, size_t *) */
 232 PHP_HTTP_API STATUS _http_get_request_body_ex(char **body, size_t *length, zend_bool dup TSRMLS_DC)
 233 {
 234         *length = 0;
 235         *body = NULL;
 236
 237         if (SG(request_info).raw_post_data) {
 238                 *length = SG(request_info).raw_post_data_length;
 239                 *body = (char *) (dup ? estrndup(SG(request_info).raw_post_data, *length) : SG(request_info).raw_post_data);
 240                 return SUCCESS;
 241         }
 242         return FAILURE;
 243 }
 244 /* }}} */
 245
 246 /* {{{ char *http_chunked_decode(char *, size_t, char **, size_t *) */
 247 PHP_HTTP_API const char *_http_chunked_decode(const char *encoded, size_t encoded_len,
 248         char **decoded, size_t *decoded_len TSRMLS_DC)
 249 {
 250         const char *e_ptr;
 251         char *d_ptr;
 252
 253         *decoded_len = 0;
 254         *decoded = ecalloc(1, encoded_len);
 255         d_ptr = *decoded;
 256         e_ptr = encoded;
 257
 258         while (((e_ptr - encoded) - encoded_len) > 0) {
 259                 int no_crlf = 0;
 260                 char *n_ptr;
 261                 size_t chunk_len = 0;
 262
 263                 chunk_len = strtol(e_ptr, &n_ptr, 16);
 264
 265                 /* check if:
 266                  * - we could not read in chunk size
 267                  * - chunk size is not followed by HTTP_CRLF|NUL
 268                  */
 269                 if ((n_ptr == e_ptr) || (*n_ptr && (no_crlf = strncmp(n_ptr, HTTP_CRLF, lenof(HTTP_CRLF))))) {
 270                         /* don't fail on apperently not encoded data */
 271                         if (e_ptr == encoded) {
 272                                 memcpy(*decoded, encoded, encoded_len);
 273                                 *decoded_len = encoded_len;
 274                                 return encoded + encoded_len;
 275                         } else {
 276                                 efree(*decoded);
 277                                 if (no_crlf) {
 278                                         http_error_ex(E_WARNING, HTTP_E_PARSE, "Invalid character (expected 0x0D 0x0A; got: 0x%x 0x%x)", *n_ptr, *(n_ptr + 1));
 279                                 } else {
 280                                         char *error = estrndup(n_ptr, strcspn(n_ptr, "\r\n \0"));
 281                                         http_error_ex(E_WARNING, HTTP_E_PARSE, "Invalid chunk size: '%s' at pos %d", error, n_ptr - encoded);
 282                                         efree(error);
 283                                 }
 284
 285                                 return NULL;
 286                         }
 287                 } else {
 288                         e_ptr = n_ptr;
 289                 }
 290
 291                 /* reached the end */
 292                 if (!chunk_len) {
 293                         break;
 294                 }
 295
 296                 memcpy(d_ptr, e_ptr += 2, chunk_len);
 297                 d_ptr += chunk_len;
 298                 e_ptr += chunk_len + 2;
 299                 *decoded_len += chunk_len;
 300         }
 301
 302         return e_ptr;
 303 }
 304 /* }}} */
 305
 306 /* {{{ STATUS http_split_response(char *, size_t, HashTable *, char **, size_t *) */
 307 PHP_HTTP_API STATUS _http_split_response(char *response, size_t response_len,
 308         HashTable *headers, char **body, size_t *body_len TSRMLS_DC)
 309 {
 310         char *header = response, *real_body = NULL;
 311
 312         while (0 < (response_len - (response - header + 4))) {
 313                 if (    (*response++ == '\r') &&
 314                                 (*response++ == '\n') &&
 315                                 (*response++ == '\r') &&
 316                                 (*response++ == '\n')) {
 317                         real_body = response;
 318                         break;
 319                 }
 320         }
 321
 322         if (real_body && (*body_len = (response_len - (real_body - header)))) {
 323                 *body = ecalloc(1, *body_len + 1);
 324                 memcpy(*body, real_body, *body_len);
 325         }
 326
 327         return http_parse_headers_ex(header, headers, 1);
 328 }
 329 /* }}} */
 330
 331 /*
 332  * Local variables:
 333  * tab-width: 4
 334  * c-basic-offset: 4
 335  * End:
 336  * vim600: noet sw=4 ts=4 fdm=marker
 337  * vim<600: noet sw=4 ts=4
 338  */
 339