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 /* {{{ STATUS http_parse_cookie(char *, HashTable *) */
  88 PHP_HTTP_API STATUS _http_parse_cookie(const char *list, HashTable *items TSRMLS_DC)
  89 {
  90 #define ST_QUOTE        1
  91 #define ST_VALUE        2
  92 #define ST_KEY          3
  93 #define ST_ASSIGN       4
  94 #define ST_ADD          5
  95
  96         zval array;
  97         int first = 1, st = ST_KEY, keylen = 0, vallen = 0;
  98         char *s, *c, *key = NULL, *val = NULL;
  99
 100         INIT_ZARR(array, items);
 101
 102         c = s = estrdup(list);
 103         for(;;) {
 104 #if 0
 105                 char *tk = NULL, *tv = NULL;
 106
 107                 if (key) {
 108                         if (keylen) {
 109                                 tk= estrndup(key, keylen);
 110                         } else {
 111                                 tk = ecalloc(1, 7);
 112                                 memcpy(tk, key, 3);
 113                                 tk[3]='.'; tk[4]='.'; tk[5]='.';
 114                         }
 115                 }
 116                 if (val) {
 117                         if (vallen) {
 118                                 tv = estrndup(val, vallen);
 119                         } else {
 120                                 tv = ecalloc(1, 7);
 121                                 memcpy(tv, val, 3);
 122                                 tv[3]='.'; tv[4]='.'; tv[5]='.';
 123                         }
 124                 }
 125                 fprintf(stderr, "[%6s] %c \"%s=%s\"\n",
 126                                 (
 127                                                 st == ST_QUOTE ? "QUOTE" :
 128                                                 st == ST_VALUE ? "VALUE" :
 129                                                 st == ST_KEY ? "KEY" :
 130                                                 st == ST_ASSIGN ? "ASSIGN" :
 131                                                 st == ST_ADD ? "ADD":
 132                                                 "HUH?"
 133                                 ), *c, tk, tv
 134                 );
 135                 STR_FREE(tk); STR_FREE(tv);
 136 #endif
 137                 switch (st)
 138                 {
 139                         case ST_QUOTE:
 140                                 if (*c == '"') {
 141                                         if (*(c-1) != '\\') {
 142                                                 st = ST_ADD;
 143                                         } else {
 144                                                 memmove(c-1, c, strlen(c)+1);
 145                                         }
 146                                 } else {
 147                                         if (!val) {
 148                                                 val = c;
 149                                         }
 150                                         if (!*c) {
 151                                                 --val;
 152                                                 st = ST_ADD;
 153                                         }
 154                                 }
 155                         break;
 156
 157                         case ST_VALUE:
 158                                 switch (*c)
 159                                 {
 160                                         case '"':
 161                                                 if (!val) {
 162                                                         st = ST_QUOTE;
 163                                                 }
 164                                         break;
 165
 166                                         case ' ':
 167                                         break;
 168
 169                                         case ';':
 170                                                 goto add;
 171                                         break;
 172
 173                                         case '\0':
 174                                                 st = ST_ADD;
 175                                         break;
 176
 177                                         default:
 178                                                 if (!val) {
 179                                                         val = c;
 180                                                 }
 181                                         break;
 182                                 }
 183                         break;
 184
 185                         case ST_KEY:
 186                                 switch (*c)
 187                                 {
 188                                         default:
 189                                                 if (!isalnum(*c)) {
 190                                                         goto failure;
 191                                                 }
 192                                         case '.':
 193                                         case '_':
 194                                         case '$':
 195                                         case '@':
 196                                                 if (!key) {
 197                                                         key = c;
 198                                                 }
 199                                         break;
 200
 201                                         case ' ':
 202                                                 if (key) {
 203                                                         keylen = c - key;
 204                                                         st = ST_ASSIGN;
 205                                                 }
 206                                         break;
 207
 208                                         case '=':
 209                                                 if (key) {
 210                                                         keylen = c - key;
 211                                                         st = ST_VALUE;
 212                                                 } else {
 213                                                         goto failure;
 214                                                 }
 215                                         break;
 216
 217                                         case '\0':
 218                                                 if (key) {
 219                                                         keylen = c - key;
 220                                                         st = ST_ADD;
 221                                                 }
 222                                         break;
 223                                 }
 224                         break;
 225
 226                         case ST_ASSIGN:
 227                                 if (*c == '=') {
 228                                         st = ST_VALUE;
 229                                 } else if (*c == ';') {
 230                                         st = ST_ADD;
 231                                 } else if (*c != ' ') {
 232                                         goto failure;
 233                                 }
 234                         break;
 235
 236                         case ST_ADD:
 237                         add:
 238                                 if (val) {
 239                                         vallen = c - val - (*c?1:0);
 240                                         while (val[vallen-1] == ' ') --vallen;
 241                                 } else {
 242                                         val = "";
 243                                         vallen = 0;
 244                                 }
 245                                 if (first) {
 246                                         first = 0;
 247                                         add_assoc_stringl(&array, "name", key, keylen, 1);
 248                                         add_assoc_stringl(&array, "value", val, vallen, 1);
 249                                 } else  {
 250                                         key = estrndup(key, keylen);
 251                                         add_assoc_stringl_ex(&array, key, keylen+1, val, vallen, 1);
 252                                         efree(key);
 253                                 }
 254                                 st = ST_KEY;
 255                                 key = val = NULL;
 256                                 keylen = vallen = 0;
 257                         break;
 258                 }
 259
 260                 if (*c) {
 261                         ++c;
 262                 } else if (st == ST_ADD) {
 263                         goto add;
 264                 } else {
 265                         break;
 266                 }
 267         }
 268
 269         efree(s);
 270         return SUCCESS;
 271
 272 failure:
 273         http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "Unexpected character (%c) at pos %tu of %zu", *c, c-s, strlen(s));
 274         efree(s);
 275         return FAILURE;
 276 }
 277 /* }}} */
 278
 279 /* {{{ void http_error(long, long, char*) */
 280 void _http_error_ex(long type TSRMLS_DC, long code, const char *format, ...)
 281 {
 282         va_list args;
 283
 284         va_start(args, format);
 285 #ifdef ZEND_ENGINE_2
 286         if ((type == E_THROW) || (PG(error_handling) == EH_THROW)) {
 287                 char *message;
 288
 289                 vspprintf(&message, 0, format, args);
 290                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
 291                 efree(message);
 292         } else
 293 #endif
 294         php_verror(NULL, "", type, format, args TSRMLS_CC);
 295         va_end(args);
 296 }
 297 /* }}} */
 298
 299 /* {{{ void http_log(char *, char *, char *) */
 300 void _http_log_ex(char *file, const char *ident, const char *message TSRMLS_DC)
 301 {
 302         time_t now;
 303         struct tm nowtm;
 304         char datetime[20] = {0};
 305
 306         now = HTTP_GET_REQUEST_TIME();
 307         strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", php_localtime_r(&now, &nowtm));
 308
 309 #define HTTP_LOG_WRITE(file, type, msg) \
 310         if (file && *file) { \
 311                 php_stream *log = php_stream_open_wrapper(file, "ab", REPORT_ERRORS|ENFORCE_SAFE_MODE, NULL); \
 312                  \
 313                 if (log) { \
 314                         php_stream_printf(log TSRMLS_CC, "%s\t[%s]\t%s\t<%s>%s", datetime, type, msg, SG(request_info).request_uri, PHP_EOL); \
 315                         php_stream_close(log); \
 316                 } \
 317          \
 318         }
 319
 320         HTTP_LOG_WRITE(file, ident, message);
 321         HTTP_LOG_WRITE(HTTP_G->log.composite, ident, message);
 322 }
 323 /* }}} */
 324
 325 static void http_ob_blackhole(char *output, uint output_len, char **handled_output, uint *handled_output_len, int mode TSRMLS_DC)
 326 {
 327         *handled_output = ecalloc(1,1);
 328         *handled_output_len = 0;
 329 }
 330
 331 /* {{{ STATUS http_exit(int, char*, char*) */
 332 STATUS _http_exit_ex(int status, char *header, char *body, zend_bool send_header TSRMLS_DC)
 333 {
 334         if (    (send_header && (SUCCESS != http_send_status_header(status, header))) ||
 335                         (!send_header && status && (SUCCESS != http_send_status(status)))) {
 336                 http_error_ex(HE_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
 337                 STR_FREE(header);
 338                 STR_FREE(body);
 339                 return FAILURE;
 340         }
 341
 342         php_end_ob_buffers(0 TSRMLS_CC);
 343         if ((SUCCESS == sapi_send_headers(TSRMLS_C)) && body) {
 344                 PHPWRITE(body, strlen(body));
 345         }
 346
 347         switch (status)
 348         {
 349                 case 301:       http_log(HTTP_G->log.redirect, "301-REDIRECT", header);                 break;
 350                 case 302:       http_log(HTTP_G->log.redirect, "302-REDIRECT", header);                 break;
 351                 case 303:       http_log(HTTP_G->log.redirect, "303-REDIRECT", header);                 break;
 352                 case 305:       http_log(HTTP_G->log.redirect, "305-REDIRECT", header);                 break;
 353                 case 307:       http_log(HTTP_G->log.redirect, "307-REDIRECT", header);                 break;
 354                 case 304:       http_log(HTTP_G->log.cache, "304-CACHE", header);                               break;
 355                 case 405:       http_log(HTTP_G->log.allowed_methods, "405-ALLOWED", header);   break;
 356                 default:        http_log(NULL, header, body);                                                                   break;
 357         }
 358
 359         STR_FREE(header);
 360         STR_FREE(body);
 361
 362         if (HTTP_G->force_exit) {
 363                 zend_bailout();
 364         } else {
 365                 php_ob_set_internal_handler(http_ob_blackhole, 4096, "blackhole", 0 TSRMLS_CC);
 366         }
 367
 368         return SUCCESS;
 369 }
 370 /* }}} */
 371
 372 /* {{{ STATUS http_check_method(char *) */
 373 STATUS _http_check_method_ex(const char *method, const char *methods)
 374 {
 375         const char *found;
 376
 377         if (    (found = strstr(methods, method)) &&
 378                         (found == method || !isalpha(found[-1])) &&
 379                         (strlen(found) >= strlen(method) && !isalpha(found[strlen(method)]))) {
 380                 return SUCCESS;
 381         }
 382         return FAILURE;
 383 }
 384 /* }}} */
 385
 386 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 387 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 388 {
 389         zval **hsv;
 390         zval **var;
 391
 392         if ((SUCCESS != zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &hsv)) || (Z_TYPE_PP(hsv) != IS_ARRAY)) {
 393                 return NULL;
 394         }
 395         if ((SUCCESS != zend_hash_find(Z_ARRVAL_PP(hsv), (char *) key, key_size, (void **) &var)) || (Z_TYPE_PP(var) != IS_STRING)) {
 396                 return NULL;
 397         }
 398         if (check && !(Z_STRVAL_PP(var) && Z_STRLEN_PP(var))) {
 399                 return NULL;
 400         }
 401         return *var;
 402 }
 403 /* }}} */
 404
 405 /* {{{ STATUS http_get_request_body(char **, size_t *) */
 406 PHP_HTTP_API STATUS _http_get_request_body_ex(char **body, size_t *length, zend_bool dup TSRMLS_DC)
 407 {
 408         *length = 0;
 409         *body = NULL;
 410
 411         if (SG(request_info).raw_post_data) {
 412                 *length = SG(request_info).raw_post_data_length;
 413                 *body = SG(request_info).raw_post_data;
 414
 415                 if (dup) {
 416                         *body = estrndup(*body, *length);
 417                 }
 418                 return SUCCESS;
 419         } else if (sapi_module.read_post && !HTTP_G->read_post_data) {
 420                 char buf[4096];
 421                 int len;
 422
 423                 HTTP_G->read_post_data = 1;
 424
 425                 while (0 < (len = sapi_module.read_post(buf, sizeof(buf) TSRMLS_CC))) {
 426                         *body = erealloc(*body, *length + len + 1);
 427                         memcpy(*body + *length, buf, len);
 428                         *length += len;
 429                         (*body)[*length] = '\0';
 430                 }
 431
 432                 /* check for error */
 433                 if (len < 0) {
 434                         STR_FREE(*body);
 435                         *length = 0;
 436                         return FAILURE;
 437                 }
 438
 439                 SG(request_info).raw_post_data = *body;
 440                 SG(request_info).raw_post_data_length = *length;
 441
 442                 if (dup) {
 443                         *body = estrndup(*body, *length);
 444                 }
 445                 return SUCCESS;
 446         }
 447
 448         return FAILURE;
 449 }
 450 /* }}} */
 451
 452 /* {{{ php_stream *_http_get_request_body_stream(void) */
 453 PHP_HTTP_API php_stream *_http_get_request_body_stream(TSRMLS_D)
 454 {
 455         php_stream *s = NULL;
 456
 457         if (SG(request_info).raw_post_data) {
 458                 s = php_stream_open_wrapper("php://input", "rb", 0, NULL);
 459         } else if (sapi_module.read_post && !HTTP_G->read_post_data) {
 460                 HTTP_G->read_post_data = 1;
 461
 462                 if ((s = php_stream_temp_new())) {
 463                         char buf[4096];
 464                         int len;
 465
 466                         while (0 < (len = sapi_module.read_post(buf, sizeof(buf) TSRMLS_CC))) {
 467                                 php_stream_write(s, buf, len);
 468                         }
 469
 470                         if (len < 0) {
 471                                 php_stream_close(s);
 472                                 s = NULL;
 473                         } else {
 474                                 php_stream_rewind(s);
 475                         }
 476                 }
 477         }
 478
 479         return s;
 480 }
 481 /* }}} */
 482
 483 /*
 484  * Local variables:
 485  * tab-width: 4
 486  * c-basic-offset: 4
 487  * End:
 488  * vim600: noet sw=4 ts=4 fdm=marker
 489  * vim<600: noet sw=4 ts=4
 490  */
 491