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