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
  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 #include <ctype.h>
  38
  39 ZEND_EXTERN_MODULE_GLOBALS(http);
  40
  41 /* char *pretty_key(char *, size_t, zend_bool, zend_bool) */
  42 char *_http_pretty_key(char *key, size_t key_len, zend_bool uctitle, zend_bool xhyphen)
  43 {
  44         if (key && key_len) {
  45                 size_t i;
  46                 int wasalpha;
  47                 if (wasalpha = isalpha((int) key[0])) {
  48                         key[0] = (char) (uctitle ? toupper((int) key[0]) : tolower((int) key[0]));
  49                 }
  50                 for (i = 1; i < key_len; i++) {
  51                         if (isalpha((int) key[i])) {
  52                                 key[i] = (char) (((!wasalpha) && uctitle) ? toupper((int) key[i]) : tolower((int) key[i]));
  53                                 wasalpha = 1;
  54                         } else {
  55                                 if (xhyphen && (key[i] == '_')) {
  56                                         key[i] = '-';
  57                                 }
  58                                 wasalpha = 0;
  59                         }
  60                 }
  61         }
  62         return key;
  63 }
  64 /* }}} */
  65
  66 /* {{{ */
  67 void _http_key_list_default_decoder(const char *encoded, size_t encoded_len, char **decoded, size_t *decoded_len TSRMLS_DC)
  68 {
  69         *decoded = estrndup(encoded, encoded_len);
  70         *decoded_len = (size_t) php_url_decode(*decoded, encoded_len);
  71 }
  72 /* }}} */
  73
  74 /* {{{ */
  75 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)
  76 {
  77         const char *key = list, *val = NULL;
  78         int vallen = 0, keylen = 0, done = 0;
  79         zval array;
  80
  81         Z_ARRVAL(array) = items;
  82
  83         if (!(val = strchr(list, '='))) {
  84                 return FAILURE;
  85         }
  86
  87 #define HTTP_KEYLIST_VAL(array, k, str, len) \
  88         { \
  89                 char *decoded; \
  90                 size_t decoded_len; \
  91                 if (decode) { \
  92                         decode(str, len, &decoded, &decoded_len TSRMLS_CC); \
  93                 } else { \
  94                         decoded_len = len; \
  95                         decoded = estrndup(str, decoded_len); \
  96                 } \
  97                 add_assoc_stringl(array, k, decoded, decoded_len, 0); \
  98         }
  99 #define HTTP_KEYLIST_FIXKEY() \
 100         { \
 101                         while (isspace(*key)) ++key; \
 102                         keylen = val - key; \
 103                         while (isspace(key[keylen - 1])) --keylen; \
 104         }
 105 #define HTTP_KEYLIST_FIXVAL() \
 106         { \
 107                         ++val; \
 108                         while (isspace(*val)) ++val; \
 109                         vallen = key - val; \
 110                         while (isspace(val[vallen - 1])) --vallen; \
 111         }
 112
 113         HTTP_KEYLIST_FIXKEY();
 114
 115         if (first_entry_is_name_value_pair) {
 116                 HTTP_KEYLIST_VAL(&array, "name", key, keylen);
 117
 118                 /* just one name=value */
 119                 if (!(key = strchr(val, separator))) {
 120                         key = val + strlen(val);
 121                         HTTP_KEYLIST_FIXVAL();
 122                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 123                         return SUCCESS;
 124                 }
 125                 /* additional info appended */
 126                 else {
 127                         HTTP_KEYLIST_FIXVAL();
 128                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 129                 }
 130         }
 131
 132         do {
 133                 char *keydup = NULL;
 134
 135                 if (!(val = strchr(key, '='))) {
 136                         break;
 137                 }
 138
 139                 /* start at 0 if first_entry_is_name_value_pair==0 */
 140                 if (zend_hash_num_elements(items)) {
 141                         ++key;
 142                 }
 143
 144                 HTTP_KEYLIST_FIXKEY();
 145                 keydup = estrndup(key, keylen);
 146                 if (!(key = strchr(val, separator))) {
 147                         done = 1;
 148                         key = val + strlen(val);
 149                 }
 150                 HTTP_KEYLIST_FIXVAL();
 151                 HTTP_KEYLIST_VAL(&array, keydup, val, vallen);
 152                 efree(keydup);
 153         } while (!done);
 154
 155         return SUCCESS;
 156 }
 157 /* }}} */
 158
 159 /* {{{ void http_error(long, long, char*) */
 160 void _http_error_ex(long type, long code, const char *format, ...)
 161 {
 162         va_list args;
 163         TSRMLS_FETCH();
 164
 165         va_start(args, format);
 166         if (type == E_THROW) {
 167 #ifdef ZEND_ENGINE_2
 168                 char *message;
 169                 vspprintf(&message, 0, format, args);
 170                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
 171 #else
 172                 type = E_WARNING;
 173 #endif
 174         }
 175         if (type != E_THROW) {
 176                 php_verror(NULL, "", type, format, args TSRMLS_CC);
 177         }
 178         va_end(args);
 179 }
 180 /* }}} */
 181
 182 /* {{{ void http_log(char *, char *, char *) */
 183 void _http_log_ex(char *file, const char *ident, const char *message TSRMLS_DC)
 184 {
 185         time_t now;
 186         struct tm nowtm;
 187         char datetime[128];
 188
 189         time(&now);
 190         strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", php_localtime_r(&now, &nowtm));
 191
 192 #define HTTP_LOG_WRITE(file, type, msg) \
 193         if (file && strlen(file)) { \
 194                 php_stream *log = php_stream_open_wrapper(file, "ab", REPORT_ERRORS|ENFORCE_SAFE_MODE, NULL); \
 195                  \
 196                 if (log) { \
 197                         php_stream_printf(log TSRMLS_CC, "%s [%12s] %32s <%s>%s", datetime, type, msg, SG(request_info).request_uri, PHP_EOL); \
 198                         php_stream_close(log); \
 199                 } \
 200          \
 201         }
 202
 203         HTTP_LOG_WRITE(file, ident, message);
 204         HTTP_LOG_WRITE(HTTP_G(log).composite, ident, message);
 205 }
 206 /* }}} */
 207
 208 /* {{{ STATUS http_exit(int, char*, char*) */
 209 STATUS _http_exit_ex(int status, char *header, char *body, zend_bool send_header TSRMLS_DC)
 210 {
 211         if (status || send_header) {
 212                 if (SUCCESS != http_send_status_header(status, send_header ? header : NULL)) {
 213                         http_error_ex(HE_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
 214                         STR_FREE(header);
 215                         STR_FREE(body);
 216                         return FAILURE;
 217                 }
 218         }
 219
 220         if (body) {
 221                 PHPWRITE(body, strlen(body));
 222         }
 223
 224         switch (status)
 225         {
 226                 case 301:       http_log(HTTP_G(log).redirect, "301-REDIRECT", header);                 break;
 227                 case 302:       http_log(HTTP_G(log).redirect, "302-REDIRECT", header);                 break;
 228                 case 304:       http_log(HTTP_G(log).cache, "304-CACHE", header);                               break;
 229                 case 405:       http_log(HTTP_G(log).allowed_methods, "405-ALLOWED", header);   break;
 230                 default:        http_log(NULL, header, body);                                                                   break;
 231         }
 232
 233         STR_FREE(header);
 234         STR_FREE(body);
 235
 236         zend_bailout();
 237         /* fake */
 238         return SUCCESS;
 239 }
 240 /* }}} */
 241
 242 /* {{{ STATUS http_check_method(char *) */
 243 STATUS _http_check_method_ex(const char *method, const char *methods)
 244 {
 245         const char *found;
 246
 247         if (    (found = strstr(methods, method)) &&
 248                         (found == method || !isalpha(found[-1])) &&
 249                         (!isalpha(found[strlen(method) + 1]))) {
 250                 return SUCCESS;
 251         }
 252         return FAILURE;
 253 }
 254 /* }}} */
 255
 256 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 257 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 258 {
 259         zval **hsv;
 260         zval **var;
 261
 262         if (SUCCESS != zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &hsv)) {
 263                 return NULL;
 264         }
 265         if (SUCCESS != zend_hash_find(Z_ARRVAL_PP(hsv), (char *) key, key_size, (void **) &var)) {
 266                 return NULL;
 267         }
 268         if (check && !(Z_STRVAL_PP(var) && Z_STRLEN_PP(var))) {
 269                 return NULL;
 270         }
 271         return *var;
 272 }
 273 /* }}} */
 274
 275 /* {{{ STATUS http_get_request_body(char **, size_t *) */
 276 PHP_HTTP_API STATUS _http_get_request_body_ex(char **body, size_t *length, zend_bool dup TSRMLS_DC)
 277 {
 278         *length = 0;
 279         *body = NULL;
 280
 281         if (SG(request_info).raw_post_data) {
 282                 *length = SG(request_info).raw_post_data_length;
 283                 *body = (char *) (dup ? estrndup(SG(request_info).raw_post_data, *length) : SG(request_info).raw_post_data);
 284                 return SUCCESS;
 285         }
 286         return FAILURE;
 287 }
 288 /* }}} */
 289
 290 /* {{{ char *http_chunked_decode(char *, size_t, char **, size_t *) */
 291 PHP_HTTP_API const char *_http_chunked_decode(const char *encoded, size_t encoded_len, char **decoded, size_t *decoded_len TSRMLS_DC)
 292 {
 293         const char *e_ptr;
 294         char *d_ptr;
 295
 296         *decoded_len = 0;
 297         *decoded = ecalloc(1, encoded_len);
 298         d_ptr = *decoded;
 299         e_ptr = encoded;
 300
 301         while (((e_ptr - encoded) - encoded_len) > 0) {
 302                 size_t chunk_len = 0, EOL_len = 0;
 303                 int eol_mismatch = 0;
 304                 char *n_ptr;
 305
 306                 chunk_len = strtol(e_ptr, &n_ptr, 16);
 307
 308                 /* check if:
 309                  * - we could not read in chunk size
 310                  * - chunk size is not followed by (CR)LF|NUL
 311                  */
 312                 if ((n_ptr == e_ptr) || (*n_ptr && (eol_mismatch = n_ptr != http_locate_eol(e_ptr, &EOL_len)))) {
 313                         /* don't fail on apperently not encoded data */
 314                         if (e_ptr == encoded) {
 315                                 memcpy(*decoded, encoded, encoded_len);
 316                                 *decoded_len = encoded_len;
 317                                 return encoded + encoded_len;
 318                         } else {
 319                                 efree(*decoded);
 320                                 if (eol_mismatch) {
 321                                         if (EOL_len == 2) {
 322                                                 http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Invalid character (expected 0x0D 0x0A; got: 0x%X 0x%X)", *n_ptr, *(n_ptr + 1));
 323                                         } else {
 324                                                 http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Invalid character (expected 0x0A; got: 0x%X)", *n_ptr);
 325                                         }
 326                                 } else {
 327                                         char *error = estrndup(n_ptr, strcspn(n_ptr, "\r\n "));
 328                                         http_error_ex(HE_WARNING, HTTP_E_ENCODING, "Invalid chunk size: '%s' at pos %d", error, n_ptr - encoded);
 329                                         efree(error);
 330                                 }
 331
 332                                 return NULL;
 333                         }
 334                 } else {
 335                         e_ptr = n_ptr;
 336                 }
 337
 338                 /* reached the end */
 339                 if (!chunk_len) {
 340                         break;
 341                 }
 342
 343                 memcpy(d_ptr, e_ptr += EOL_len, chunk_len);
 344                 d_ptr += chunk_len;
 345                 e_ptr += chunk_len + EOL_len;
 346                 *decoded_len += chunk_len;
 347         }
 348
 349         return e_ptr;
 350 }
 351 /* }}} */
 352
 353 /*
 354  * Local variables:
 355  * tab-width: 4
 356  * c-basic-offset: 4
 357  * End:
 358  * vim600: noet sw=4 ts=4 fdm=marker
 359  * vim<600: noet sw=4 ts=4
 360  */
 361