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