git.m6w6.name Git - m6w6/ext-http/blob - http_api.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: http                                                       |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2004-2006, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 /* $Id$ */
  14
  15 #define HTTP_WANT_SAPI
  16 #include "php_http.h"
  17
  18 #include "php_output.h"
  19 #include "ext/standard/url.h"
  20
  21 #include "php_http_api.h"
  22 #include "php_http_send_api.h"
  23
  24 #ifdef ZEND_ENGINE_2
  25 #       include "php_http_exception_object.h"
  26 #endif
  27
  28 PHP_MINIT_FUNCTION(http_support)
  29 {
  30         HTTP_LONG_CONSTANT("HTTP_SUPPORT", HTTP_SUPPORT);
  31         HTTP_LONG_CONSTANT("HTTP_SUPPORT_REQUESTS", HTTP_SUPPORT_REQUESTS);
  32         HTTP_LONG_CONSTANT("HTTP_SUPPORT_MAGICMIME", HTTP_SUPPORT_MAGICMIME);
  33         HTTP_LONG_CONSTANT("HTTP_SUPPORT_ENCODINGS", HTTP_SUPPORT_ENCODINGS);
  34         HTTP_LONG_CONSTANT("HTTP_SUPPORT_SSLREQUESTS", HTTP_SUPPORT_SSLREQUESTS);
  35
  36         return SUCCESS;
  37 }
  38
  39 PHP_HTTP_API long _http_support(long feature)
  40 {
  41         long support = HTTP_SUPPORT;
  42
  43 #ifdef HTTP_HAVE_CURL
  44         support |= HTTP_SUPPORT_REQUESTS;
  45 #       ifdef HTTP_HAVE_SSL
  46         support |= HTTP_SUPPORT_SSLREQUESTS;
  47 #       endif
  48 #endif
  49 #ifdef HTTP_HAVE_MAGIC
  50         support |= HTTP_SUPPORT_MAGICMIME;
  51 #endif
  52 #ifdef HTTP_HAVE_ZLIB
  53         support |= HTTP_SUPPORT_ENCODINGS;
  54 #endif
  55
  56         if (feature) {
  57                 return (feature == (support & feature));
  58         }
  59         return support;
  60 }
  61
  62 /* char *pretty_key(char *, size_t, zend_bool, zend_bool) */
  63 char *_http_pretty_key(char *key, size_t key_len, zend_bool uctitle, zend_bool xhyphen)
  64 {
  65         if (key && key_len) {
  66                 size_t i;
  67                 int wasalpha;
  68                 if ((wasalpha = isalpha((int) key[0]))) {
  69                         key[0] = (char) (uctitle ? toupper((int) key[0]) : tolower((int) key[0]));
  70                 }
  71                 for (i = 1; i < key_len; i++) {
  72                         if (isalpha((int) key[i])) {
  73                                 key[i] = (char) (((!wasalpha) && uctitle) ? toupper((int) key[i]) : tolower((int) key[i]));
  74                                 wasalpha = 1;
  75                         } else {
  76                                 if (xhyphen && (key[i] == '_')) {
  77                                         key[i] = '-';
  78                                 }
  79                                 wasalpha = 0;
  80                         }
  81                 }
  82         }
  83         return key;
  84 }
  85 /* }}} */
  86
  87 /* {{{ */
  88 void _http_key_list_default_decoder(const char *encoded, size_t encoded_len, char **decoded, size_t *decoded_len TSRMLS_DC)
  89 {
  90         *decoded = estrndup(encoded, encoded_len);
  91         *decoded_len = (size_t) php_url_decode(*decoded, encoded_len);
  92 }
  93 /* }}} */
  94
  95 /* {{{ */
  96 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)
  97 {
  98         const char *key = list, *val = NULL;
  99         int vallen = 0, keylen = 0, done = 0;
 100         zval array;
 101
 102         INIT_ZARR(array, items);
 103
 104         if (!(val = strchr(list, '='))) {
 105                 return FAILURE;
 106         }
 107
 108 #define HTTP_KEYLIST_VAL(array, k, str, len) \
 109         { \
 110                 char *decoded; \
 111                 size_t decoded_len; \
 112                 if (decode) { \
 113                         decode(str, len, &decoded, &decoded_len TSRMLS_CC); \
 114                 } else { \
 115                         decoded_len = len; \
 116                         decoded = estrndup(str, decoded_len); \
 117                 } \
 118                 add_assoc_stringl(array, k, decoded, decoded_len, 0); \
 119         }
 120 #define HTTP_KEYLIST_FIXKEY() \
 121         { \
 122                         while (isspace(*key)) ++key; \
 123                         keylen = val - key; \
 124                         while (isspace(key[keylen - 1])) --keylen; \
 125         }
 126 #define HTTP_KEYLIST_FIXVAL() \
 127         { \
 128                         ++val; \
 129                         while (isspace(*val)) ++val; \
 130                         vallen = key - val; \
 131                         while (isspace(val[vallen - 1])) --vallen; \
 132         }
 133
 134         HTTP_KEYLIST_FIXKEY();
 135
 136         if (first_entry_is_name_value_pair) {
 137                 HTTP_KEYLIST_VAL(&array, "name", key, keylen);
 138
 139                 /* just one name=value */
 140                 if (!(key = strchr(val, separator))) {
 141                         key = val + strlen(val);
 142                         HTTP_KEYLIST_FIXVAL();
 143                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 144                         return SUCCESS;
 145                 }
 146                 /* additional info appended */
 147                 else {
 148                         HTTP_KEYLIST_FIXVAL();
 149                         HTTP_KEYLIST_VAL(&array, "value", val, vallen);
 150                 }
 151         }
 152
 153         do {
 154                 char *keydup = NULL;
 155
 156                 if (!(val = strchr(key, '='))) {
 157                         break;
 158                 }
 159
 160                 /* start at 0 if first_entry_is_name_value_pair==0 */
 161                 if (zend_hash_num_elements(items)) {
 162                         ++key;
 163                 }
 164
 165                 HTTP_KEYLIST_FIXKEY();
 166                 keydup = estrndup(key, keylen);
 167                 if (!(key = strchr(val, separator))) {
 168                         done = 1;
 169                         key = val + strlen(val);
 170                 }
 171                 HTTP_KEYLIST_FIXVAL();
 172                 HTTP_KEYLIST_VAL(&array, keydup, val, vallen);
 173                 efree(keydup);
 174         } while (!done);
 175
 176         return SUCCESS;
 177 }
 178 /* }}} */
 179
 180 /* {{{ void http_error(long, long, char*) */
 181 void _http_error_ex(long type TSRMLS_DC, long code, const char *format, ...)
 182 {
 183         va_list args;
 184
 185         va_start(args, format);
 186 #ifdef ZEND_ENGINE_2
 187         if ((type == E_THROW) || (PG(error_handling) == EH_THROW)) {
 188                 char *message;
 189
 190                 vspprintf(&message, 0, format, args);
 191                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
 192                 efree(message);
 193         } else
 194 #endif
 195         php_verror(NULL, "", type, format, args TSRMLS_CC);
 196         va_end(args);
 197 }
 198 /* }}} */
 199
 200 /* {{{ void http_log(char *, char *, char *) */
 201 void _http_log_ex(char *file, const char *ident, const char *message TSRMLS_DC)
 202 {
 203         time_t now;
 204         struct tm nowtm;
 205         char datetime[20] = {0};
 206
 207         now = HTTP_GET_REQUEST_TIME();
 208         strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", php_localtime_r(&now, &nowtm));
 209
 210 #define HTTP_LOG_WRITE(file, type, msg) \
 211         if (file && *file) { \
 212                 php_stream *log = php_stream_open_wrapper(file, "ab", REPORT_ERRORS|ENFORCE_SAFE_MODE, NULL); \
 213                  \
 214                 if (log) { \
 215                         php_stream_printf(log TSRMLS_CC, "%s\t[%s]\t%s\t<%s>%s", datetime, type, msg, SG(request_info).request_uri, PHP_EOL); \
 216                         php_stream_close(log); \
 217                 } \
 218          \
 219         }
 220
 221         HTTP_LOG_WRITE(file, ident, message);
 222         HTTP_LOG_WRITE(HTTP_G->log.composite, ident, message);
 223 }
 224 /* }}} */
 225
 226 static void http_ob_blackhole(char *output, uint output_len, char **handled_output, uint *handled_output_len, int mode TSRMLS_DC)
 227 {
 228         *handled_output = ecalloc(1,1);
 229         *handled_output_len = 0;
 230 }
 231
 232 /* {{{ STATUS http_exit(int, char*, char*) */
 233 STATUS _http_exit_ex(int status, char *header, char *body, zend_bool send_header TSRMLS_DC)
 234 {
 235         if (    (send_header && (SUCCESS != http_send_status_header(status, header))) ||
 236                         (!send_header && status && (SUCCESS != http_send_status(status)))) {
 237                 http_error_ex(HE_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
 238                 STR_FREE(header);
 239                 STR_FREE(body);
 240                 return FAILURE;
 241         }
 242
 243         php_end_ob_buffers(0 TSRMLS_CC);
 244         if ((SUCCESS == sapi_send_headers(TSRMLS_C)) && body) {
 245                 PHPWRITE(body, strlen(body));
 246         }
 247
 248         switch (status)
 249         {
 250                 case 301:       http_log(HTTP_G->log.redirect, "301-REDIRECT", header);                 break;
 251                 case 302:       http_log(HTTP_G->log.redirect, "302-REDIRECT", header);                 break;
 252                 case 303:       http_log(HTTP_G->log.redirect, "303-REDIRECT", header);                 break;
 253                 case 305:       http_log(HTTP_G->log.redirect, "305-REDIRECT", header);                 break;
 254                 case 307:       http_log(HTTP_G->log.redirect, "307-REDIRECT", header);                 break;
 255                 case 304:       http_log(HTTP_G->log.cache, "304-CACHE", header);                               break;
 256                 case 405:       http_log(HTTP_G->log.allowed_methods, "405-ALLOWED", header);   break;
 257                 default:        http_log(NULL, header, body);                                                                   break;
 258         }
 259
 260         STR_FREE(header);
 261         STR_FREE(body);
 262
 263         if (HTTP_G->force_exit) {
 264                 zend_bailout();
 265         } else {
 266                 php_ob_set_internal_handler(http_ob_blackhole, 4096, "blackhole", 0 TSRMLS_CC);
 267         }
 268
 269         return SUCCESS;
 270 }
 271 /* }}} */
 272
 273 /* {{{ STATUS http_check_method(char *) */
 274 STATUS _http_check_method_ex(const char *method, const char *methods)
 275 {
 276         const char *found;
 277
 278         if (    (found = strstr(methods, method)) &&
 279                         (found == method || !isalpha(found[-1])) &&
 280                         (strlen(found) >= strlen(method) && !isalpha(found[strlen(method)]))) {
 281                 return SUCCESS;
 282         }
 283         return FAILURE;
 284 }
 285 /* }}} */
 286
 287 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 288 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 289 {
 290         zval **hsv;
 291         zval **var;
 292
 293         if ((SUCCESS != zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &hsv)) || (Z_TYPE_PP(hsv) != IS_ARRAY)) {
 294                 return NULL;
 295         }
 296         if ((SUCCESS != zend_hash_find(Z_ARRVAL_PP(hsv), (char *) key, key_size, (void **) &var)) || (Z_TYPE_PP(var) != IS_STRING)) {
 297                 return NULL;
 298         }
 299         if (check && !(Z_STRVAL_PP(var) && Z_STRLEN_PP(var))) {
 300                 return NULL;
 301         }
 302         return *var;
 303 }
 304 /* }}} */
 305
 306 /* {{{ STATUS http_get_request_body(char **, size_t *) */
 307 PHP_HTTP_API STATUS _http_get_request_body_ex(char **body, size_t *length, zend_bool dup TSRMLS_DC)
 308 {
 309         *length = 0;
 310         *body = NULL;
 311
 312         if (SG(request_info).raw_post_data) {
 313                 *length = SG(request_info).raw_post_data_length;
 314                 *body = SG(request_info).raw_post_data;
 315
 316                 if (dup) {
 317                         *body = estrndup(*body, *length);
 318                 }
 319                 return SUCCESS;
 320         } else if (sapi_module.read_post && !HTTP_G->read_post_data) {
 321                 char buf[4096];
 322                 int len;
 323
 324                 HTTP_G->read_post_data = 1;
 325
 326                 while (0 < (len = sapi_module.read_post(buf, sizeof(buf) TSRMLS_CC))) {
 327                         *body = erealloc(*body, *length + len + 1);
 328                         memcpy(*body + *length, buf, len);
 329                         *length += len;
 330                         (*body)[*length] = '\0';
 331                 }
 332
 333                 /* check for error */
 334                 if (len < 0) {
 335                         STR_FREE(*body);
 336                         *length = 0;
 337                         return FAILURE;
 338                 }
 339
 340                 SG(request_info).raw_post_data = *body;
 341                 SG(request_info).raw_post_data_length = *length;
 342
 343                 if (dup) {
 344                         *body = estrndup(*body, *length);
 345                 }
 346                 return SUCCESS;
 347         }
 348
 349         return FAILURE;
 350 }
 351 /* }}} */
 352
 353 /* {{{ php_stream *_http_get_request_body_stream(void) */
 354 PHP_HTTP_API php_stream *_http_get_request_body_stream(TSRMLS_D)
 355 {
 356         php_stream *s = NULL;
 357
 358         if (SG(request_info).raw_post_data) {
 359                 s = php_stream_open_wrapper("php://input", "rb", 0, NULL);
 360         } else if (sapi_module.read_post && !HTTP_G->read_post_data) {
 361                 HTTP_G->read_post_data = 1;
 362
 363                 if ((s = php_stream_temp_new())) {
 364                         char buf[4096];
 365                         int len;
 366
 367                         while (0 < (len = sapi_module.read_post(buf, sizeof(buf) TSRMLS_CC))) {
 368                                 php_stream_write(s, buf, len);
 369                         }
 370
 371                         if (len < 0) {
 372                                 php_stream_close(s);
 373                                 s = NULL;
 374                         } else {
 375                                 php_stream_rewind(s);
 376                         }
 377                 }
 378         }
 379
 380         return s;
 381 }
 382 /* }}} */
 383
 384 /*
 385  * Local variables:
 386  * tab-width: 4
 387  * c-basic-offset: 4
 388  * End:
 389  * vim600: noet sw=4 ts=4 fdm=marker
 390  * vim<600: noet sw=4 ts=4
 391  */
 392