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
  26 #include "php_http.h"
  27 #include "php_http_std_defs.h"
  28 #include "php_http_api.h"
  29 #include "php_http_headers_api.h"
  30 #include "php_http_send_api.h"
  31
  32 #ifdef ZEND_ENGINE_2
  33 #       include "zend_exceptions.h"
  34 #       include "php_http_exception_object.h"
  35 #endif
  36
  37 ZEND_EXTERN_MODULE_GLOBALS(http);
  38
  39 /* char *pretty_key(char *, size_t, zend_bool, zebd_bool) */
  40 char *_http_pretty_key(char *key, size_t key_len, zend_bool uctitle, zend_bool xhyphen)
  41 {
  42         if (key && key_len) {
  43                 unsigned i, wasalpha;
  44                 if (wasalpha = isalpha(key[0])) {
  45                         key[0] = uctitle ? toupper(key[0]) : tolower(key[0]);
  46                 }
  47                 for (i = 1; i < key_len; i++) {
  48                         if (isalpha(key[i])) {
  49                                 key[i] = ((!wasalpha) && uctitle) ? toupper(key[i]) : tolower(key[i]);
  50                                 wasalpha = 1;
  51                         } else {
  52                                 if (xhyphen && (key[i] == '_')) {
  53                                         key[i] = '-';
  54                                 }
  55                                 wasalpha = 0;
  56                         }
  57                 }
  58         }
  59         return key;
  60 }
  61 /* }}} */
  62
  63 /* {{{ void http_error(long, long, char*) */
  64 void _http_error_ex(long type, long code, const char *format, ...)
  65 {
  66         va_list args;
  67         TSRMLS_FETCH();
  68
  69         va_start(args, format);
  70         if (type == E_THROW) {
  71 #ifdef ZEND_ENGINE_2
  72                 char *message;
  73                 vspprintf(&message, 0, format, args);
  74                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
  75 #else
  76                 type = E_WARNING;
  77 #endif
  78         }
  79         if (type != E_THROW) {
  80                 php_verror(NULL, "", type, format, args TSRMLS_CC);
  81         }
  82         va_end(args);
  83 }
  84 /* }}} */
  85
  86 /* {{{ STATUS http_exit(int, char*) */
  87 STATUS _http_exit_ex(int status, char *header, zend_bool free_header TSRMLS_DC)
  88 {
  89         if (SUCCESS != http_send_status_header(status, header)) {
  90                 http_error_ex(E_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
  91                 if (free_header && header) {
  92                         efree(header);
  93                 }
  94                 return FAILURE;
  95         }
  96         if (free_header && header) {
  97                 efree(header);
  98         }
  99         zend_bailout();
 100         /* fake */
 101         return SUCCESS;
 102 }
 103 /* }}} */
 104
 105 /* {{{ STATUS http_check_method(char *) */
 106 STATUS _http_check_method_ex(const char *method, const char *methods)
 107 {
 108         const char *found;
 109
 110         if (    (found = strstr(methods, method)) &&
 111                         (found == method || !isalpha(found[-1])) &&
 112                         (!isalpha(found[strlen(method) + 1]))) {
 113                 return SUCCESS;
 114         }
 115         return FAILURE;
 116 }
 117 /* }}} */
 118
 119 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 120 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 121 {
 122         zval **var;
 123         if (SUCCESS == zend_hash_find(HTTP_SERVER_VARS, (char *) key, key_size, (void **) &var)) {
 124                 if (check) {
 125                         return Z_STRVAL_PP(var) && Z_STRLEN_PP(var) ? *var : NULL;
 126                 } else {
 127                         return *var;
 128                 }
 129         }
 130         return NULL;
 131 }
 132 /* }}} */
 133
 134
 135 /* {{{ char *http_chunked_decode(char *, size_t, char **, size_t *) */
 136 PHP_HTTP_API const char *_http_chunked_decode(const char *encoded, size_t encoded_len,
 137         char **decoded, size_t *decoded_len TSRMLS_DC)
 138 {
 139         const char *e_ptr;
 140         char *d_ptr;
 141
 142         *decoded_len = 0;
 143         *decoded = ecalloc(1, encoded_len);
 144         d_ptr = *decoded;
 145         e_ptr = encoded;
 146
 147         while (((e_ptr - encoded) - encoded_len) > 0) {
 148                 int no_crlf = 0;
 149                 char *n_ptr;
 150                 size_t chunk_len = 0;
 151
 152                 chunk_len = strtol(e_ptr, &n_ptr, 16);
 153
 154                 /* check if:
 155                  * - we could not read in chunk size
 156                  * - chunk size is not followed by HTTP_CRLF|NUL
 157                  */
 158                 if ((n_ptr == e_ptr) || (*n_ptr && (no_crlf = strncmp(n_ptr, HTTP_CRLF, lenof(HTTP_CRLF))))) {
 159                         /* don't fail on apperently not encoded data */
 160                         if (e_ptr == encoded) {
 161                                 memcpy(*decoded, encoded, encoded_len);
 162                                 *decoded_len = encoded_len;
 163                                 return encoded + encoded_len;
 164                         } else {
 165                                 efree(*decoded);
 166                                 if (no_crlf) {
 167                                         http_error_ex(E_WARNING, HTTP_E_PARSE,
 168                                                 "Invalid character (expected 0x0D 0x0A; got: 0x%x 0x%x)", *n_ptr, *(n_ptr + 1));
 169                                 } else {
 170                                         char *error = estrndup(n_ptr, strcspn(n_ptr, "\r\n \0"));
 171                                         http_error_ex(E_WARNING, HTTP_E_PARSE, "Invalid chunk size: '%s' at pos %d", error, n_ptr - encoded);
 172                                         efree(error);
 173                                         efree(decoded);
 174                                 }
 175
 176                                 return NULL;
 177                         }
 178                 } else {
 179                         e_ptr = n_ptr;
 180                 }
 181
 182                 /* reached the end */
 183                 if (!chunk_len) {
 184                         break;
 185                 }
 186
 187                 memcpy(d_ptr, e_ptr += 2, chunk_len);
 188                 d_ptr += chunk_len;
 189                 e_ptr += chunk_len + 2;
 190                 *decoded_len += chunk_len;
 191         }
 192
 193         return e_ptr;
 194 }
 195 /* }}} */
 196
 197 /* {{{ STATUS http_split_response(zval *, zval *, zval *) */
 198 PHP_HTTP_API STATUS _http_split_response(zval *response, zval *headers, zval *body TSRMLS_DC)
 199 {
 200         char *b = NULL;
 201         size_t l = 0;
 202         STATUS status = http_split_response_ex(Z_STRVAL_P(response), Z_STRLEN_P(response), Z_ARRVAL_P(headers), &b, &l);
 203         ZVAL_STRINGL(body, b, l, 0);
 204         return status;
 205 }
 206 /* }}} */
 207
 208 /* {{{ STATUS http_split_response(char *, size_t, HashTable *, char **, size_t *) */
 209 PHP_HTTP_API STATUS _http_split_response_ex(char *response, size_t response_len,
 210         HashTable *headers, char **body, size_t *body_len TSRMLS_DC)
 211 {
 212         char *header = response, *real_body = NULL;
 213
 214         while (0 < (response_len - (response - header + 4))) {
 215                 if (    (*response++ == '\r') &&
 216                                 (*response++ == '\n') &&
 217                                 (*response++ == '\r') &&
 218                                 (*response++ == '\n')) {
 219                         real_body = response;
 220                         break;
 221                 }
 222         }
 223
 224         if (real_body && (*body_len = (response_len - (real_body - header)))) {
 225                 *body = ecalloc(1, *body_len + 1);
 226                 memcpy(*body, real_body, *body_len);
 227         }
 228
 229         return http_parse_headers_ex(header, headers, 1);
 230 }
 231 /* }}} */
 232
 233 /*
 234  * Local variables:
 235  * tab-width: 4
 236  * c-basic-offset: 4
 237  * End:
 238  * vim600: noet sw=4 ts=4 fdm=marker
 239  * vim<600: noet sw=4 ts=4
 240  */
 241