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 /* {{{ void http_error(long, long, char*) */
  88 void _http_error_ex(long type TSRMLS_DC, long code, const char *format, ...)
  89 {
  90         va_list args;
  91
  92         va_start(args, format);
  93 #ifdef ZEND_ENGINE_2
  94         if ((type == E_THROW) || (PG(error_handling) == EH_THROW)) {
  95                 char *message;
  96
  97                 vspprintf(&message, 0, format, args);
  98                 zend_throw_exception(http_exception_get_for_code(code), message, code TSRMLS_CC);
  99                 efree(message);
 100         } else
 101 #endif
 102         php_verror(NULL, "", type, format, args TSRMLS_CC);
 103         va_end(args);
 104 }
 105 /* }}} */
 106
 107 /* {{{ void http_log(char *, char *, char *) */
 108 void _http_log_ex(char *file, const char *ident, const char *message TSRMLS_DC)
 109 {
 110         time_t now;
 111         struct tm nowtm;
 112         char datetime[20] = {0};
 113
 114         now = HTTP_GET_REQUEST_TIME();
 115         strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", php_localtime_r(&now, &nowtm));
 116
 117 #define HTTP_LOG_WRITE(file, type, msg) \
 118         if (file && *file) { \
 119                 php_stream *log = php_stream_open_wrapper_ex(file, "ab", REPORT_ERRORS|ENFORCE_SAFE_MODE, NULL, HTTP_DEFAULT_STREAM_CONTEXT); \
 120                  \
 121                 if (log) { \
 122                         php_stream_printf(log TSRMLS_CC, "%s\t[%s]\t%s\t<%s>%s", datetime, type, msg, SG(request_info).request_uri, PHP_EOL); \
 123                         php_stream_close(log); \
 124                 } \
 125          \
 126         }
 127
 128         HTTP_LOG_WRITE(file, ident, message);
 129         HTTP_LOG_WRITE(HTTP_G->log.composite, ident, message);
 130 }
 131 /* }}} */
 132
 133 static void http_ob_blackhole(char *output, uint output_len, char **handled_output, uint *handled_output_len, int mode TSRMLS_DC)
 134 {
 135         *handled_output = ecalloc(1,1);
 136         *handled_output_len = 0;
 137 }
 138
 139 /* {{{ STATUS http_exit(int, char*, char*) */
 140 STATUS _http_exit_ex(int status, char *header, char *body, zend_bool send_header TSRMLS_DC)
 141 {
 142         if (    (send_header && (SUCCESS != http_send_status_header(status, header))) ||
 143                         (!send_header && status && (SUCCESS != http_send_status(status)))) {
 144                 http_error_ex(HE_WARNING, HTTP_E_HEADER, "Failed to exit with status/header: %d - %s", status, header ? header : "");
 145                 STR_FREE(header);
 146                 STR_FREE(body);
 147                 return FAILURE;
 148         }
 149
 150         if (!OG(ob_lock)) {
 151                 php_end_ob_buffers(0 TSRMLS_CC);
 152         }
 153         if ((SUCCESS == sapi_send_headers(TSRMLS_C)) && body) {
 154                 PHPWRITE(body, strlen(body));
 155         }
 156
 157         switch (status)
 158         {
 159                 case 301:       http_log(HTTP_G->log.redirect, "301-REDIRECT", header);                 break;
 160                 case 302:       http_log(HTTP_G->log.redirect, "302-REDIRECT", header);                 break;
 161                 case 303:       http_log(HTTP_G->log.redirect, "303-REDIRECT", header);                 break;
 162                 case 305:       http_log(HTTP_G->log.redirect, "305-REDIRECT", header);                 break;
 163                 case 307:       http_log(HTTP_G->log.redirect, "307-REDIRECT", header);                 break;
 164                 case 304:       http_log(HTTP_G->log.cache, "304-CACHE", header);                               break;
 165                 case 405:       http_log(HTTP_G->log.allowed_methods, "405-ALLOWED", header);   break;
 166                 default:        http_log(NULL, header, body);                                                                   break;
 167         }
 168
 169         STR_FREE(header);
 170         STR_FREE(body);
 171
 172         if (HTTP_G->force_exit) {
 173                 zend_bailout();
 174         } else {
 175                 php_ob_set_internal_handler(http_ob_blackhole, 4096, "blackhole", 0 TSRMLS_CC);
 176         }
 177
 178         return SUCCESS;
 179 }
 180 /* }}} */
 181
 182 /* {{{ STATUS http_check_method(char *) */
 183 STATUS _http_check_method_ex(const char *method, const char *methods)
 184 {
 185         const char *found;
 186
 187         if (    (found = strstr(methods, method)) &&
 188                         (found == method || !isalpha(found[-1])) &&
 189                         (strlen(found) >= strlen(method) && !isalpha(found[strlen(method)]))) {
 190                 return SUCCESS;
 191         }
 192         return FAILURE;
 193 }
 194 /* }}} */
 195
 196 /* {{{ zval *http_get_server_var_ex(char *, size_t) */
 197 PHP_HTTP_API zval *_http_get_server_var_ex(const char *key, size_t key_size, zend_bool check TSRMLS_DC)
 198 {
 199         zval **hsv;
 200         zval **var;
 201 #ifdef ZEND_ENGINE_2
 202         zend_is_auto_global("_SERVER", lenof("_SERVER") TSRMLS_CC);
 203 #endif
 204         if ((SUCCESS != zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void *) &hsv)) || (Z_TYPE_PP(hsv) != IS_ARRAY)) {
 205                 return NULL;
 206         }
 207         if ((SUCCESS != zend_hash_find(Z_ARRVAL_PP(hsv), (char *) key, key_size, (void *) &var)) || (Z_TYPE_PP(var) != IS_STRING)) {
 208                 return NULL;
 209         }
 210         if (check && !(Z_STRVAL_PP(var) && Z_STRLEN_PP(var))) {
 211                 return NULL;
 212         }
 213         return *var;
 214 }
 215 /* }}} */
 216
 217 /* {{{ STATUS http_get_request_body(char **, size_t *) */
 218 PHP_HTTP_API STATUS _http_get_request_body_ex(char **body, size_t *length, zend_bool dup TSRMLS_DC)
 219 {
 220         *length = 0;
 221         *body = NULL;
 222
 223         if (SG(request_info).raw_post_data) {
 224                 *length = SG(request_info).raw_post_data_length;
 225                 *body = SG(request_info).raw_post_data;
 226
 227                 if (dup) {
 228                         *body = estrndup(*body, *length);
 229                 }
 230                 return SUCCESS;
 231         } else if (sapi_module.read_post && !HTTP_G->read_post_data) {
 232                 char buf[4096];
 233                 int len;
 234
 235                 HTTP_G->read_post_data = 1;
 236
 237                 while (0 < (len = sapi_module.read_post(buf, sizeof(buf) TSRMLS_CC))) {
 238                         *body = erealloc(*body, *length + len + 1);
 239                         memcpy(*body + *length, buf, len);
 240                         *length += len;
 241                         (*body)[*length] = '\0';
 242                 }
 243
 244                 /* check for error */
 245                 if (len < 0) {
 246                         STR_FREE(*body);
 247                         *length = 0;
 248                         return FAILURE;
 249                 }
 250
 251                 SG(request_info).raw_post_data = *body;
 252                 SG(request_info).raw_post_data_length = *length;
 253
 254                 if (dup) {
 255                         *body = estrndup(*body, *length);
 256                 }
 257                 return SUCCESS;
 258         }
 259
 260         return FAILURE;
 261 }
 262 /* }}} */
 263
 264 /* {{{ php_stream *http_get_request_body_stream(void) */
 265 PHP_HTTP_API php_stream *_http_get_request_body_stream(TSRMLS_D)
 266 {
 267         php_stream *s = NULL;
 268
 269         if (SG(request_info).raw_post_data) {
 270                 s = php_stream_open_wrapper("php://input", "rb", 0, NULL);
 271         } else if (sapi_module.read_post && !HTTP_G->read_post_data) {
 272                 HTTP_G->read_post_data = 1;
 273
 274                 if ((s = php_stream_temp_new())) {
 275                         char buf[4096];
 276                         int len;
 277
 278                         while (0 < (len = sapi_module.read_post(buf, sizeof(buf) TSRMLS_CC))) {
 279                                 php_stream_write(s, buf, len);
 280                         }
 281
 282                         if (len < 0) {
 283                                 php_stream_close(s);
 284                                 s = NULL;
 285                         } else {
 286                                 php_stream_rewind(s);
 287                         }
 288                 }
 289         }
 290
 291         return s;
 292 }
 293 /* }}} */
 294
 295 /* {{{ void http_parse_params_default_callback(...) */
 296 PHP_HTTP_API void _http_parse_params_default_callback(void *arg, const char *key, int keylen, const char *val, int vallen TSRMLS_DC)
 297 {
 298         char *kdup;
 299         zval tmp, *entry;
 300         HashTable *ht = (HashTable *) arg;
 301
 302         if (ht) {
 303                 INIT_ZARR(tmp, ht);
 304
 305                 if (vallen) {
 306                         MAKE_STD_ZVAL(entry);
 307                         array_init(entry);
 308                         kdup = estrndup(key, keylen);
 309                         add_assoc_stringl_ex(entry, kdup, keylen + 1, (char *) val, vallen, 1);
 310                         efree(kdup);
 311                         add_next_index_zval(&tmp, entry);
 312                 } else {
 313                         add_next_index_stringl(&tmp, (char *) key, keylen, 1);
 314                 }
 315         }
 316 }
 317 /* }}} */
 318
 319 /* {{{ STATUS http_parse_params(const char *, HashTable *) */
 320 PHP_HTTP_API STATUS _http_parse_params_ex(const char *param, int allow_comma_sep, http_parse_params_callback cb, void *cb_arg TSRMLS_DC)
 321 {
 322 #define ST_QUOTE        1
 323 #define ST_VALUE        2
 324 #define ST_KEY          3
 325 #define ST_ASSIGN       4
 326 #define ST_ADD          5
 327
 328         int st = ST_KEY, keylen = 0, vallen = 0;
 329         char *s, *c, *key = NULL, *val = NULL;
 330
 331         for(c = s = estrdup(param);;) {
 332 #if 0
 333                 char *tk = NULL, *tv = NULL;
 334
 335                 if (key) {
 336                         if (keylen) {
 337                                 tk= estrndup(key, keylen);
 338                         } else {
 339                                 tk = ecalloc(1, 7);
 340                                 memcpy(tk, key, 3);
 341                                 tk[3]='.'; tk[4]='.'; tk[5]='.';
 342                         }
 343                 }
 344                 if (val) {
 345                         if (vallen) {
 346                                 tv = estrndup(val, vallen);
 347                         } else {
 348                                 tv = ecalloc(1, 7);
 349                                 memcpy(tv, val, 3);
 350                                 tv[3]='.'; tv[4]='.'; tv[5]='.';
 351                         }
 352                 }
 353                 fprintf(stderr, "[%6s] %c \"%s=%s\"\n",
 354                                 (
 355                                                 st == ST_QUOTE ? "QUOTE" :
 356                                                 st == ST_VALUE ? "VALUE" :
 357                                                 st == ST_KEY ? "KEY" :
 358                                                 st == ST_ASSIGN ? "ASSIGN" :
 359                                                 st == ST_ADD ? "ADD":
 360                                                 "HUH?"
 361                                 ), *c, tk, tv
 362                 );
 363                 STR_FREE(tk); STR_FREE(tv);
 364 #endif
 365                 switch (st)
 366                 {
 367                         case ST_QUOTE:
 368                         quote:
 369                                 if (*c == '"') {
 370                                         if (*(c-1) == '\\') {
 371                                                 memmove(c-1, c, strlen(c)+1);
 372                                                 goto quote;
 373                                         } else {
 374                                                 goto add;
 375                                         }
 376                                 } else {
 377                                         if (!val) {
 378                                                 val = c;
 379                                         }
 380                                         if (!*c) {
 381                                                 --val;
 382                                                 st = ST_ADD;
 383                                         }
 384                                 }
 385                         break;
 386
 387                         case ST_VALUE:
 388                                 switch (*c)
 389                                 {
 390                                         case '"':
 391                                                 if (!val) {
 392                                                         st = ST_QUOTE;
 393                                                 }
 394                                         break;
 395
 396                                         case ' ':
 397                                         break;
 398
 399                                         case ';':
 400                                         case '\0':
 401                                                 goto add;
 402                                         break;
 403
 404                                         default:
 405                                                 if (!val) {
 406                                                         val = c;
 407                                                 }
 408                                         break;
 409                                 }
 410                         break;
 411
 412                         case ST_KEY:
 413                                 switch (*c)
 414                                 {
 415                                         case ',':
 416                                                 if (allow_comma_sep) {
 417                                                         goto allow_comma;
 418                                                 }
 419                                         case '\r':
 420                                         case '\n':
 421                                         case '\t':
 422                                         case '\013':
 423                                         case '\014':
 424                                                 goto failure;
 425                                         break;
 426
 427                                         case '=':
 428                                                 if (key) {
 429                                                         keylen = c - key;
 430                                                         st = ST_VALUE;
 431                                                 } else {
 432                                                         goto failure;
 433                                                 }
 434                                         break;
 435
 436                                         case ' ':
 437                                                 if (key) {
 438                                                         keylen = c - key;
 439                                                         st = ST_ASSIGN;
 440                                                 }
 441                                         break;
 442
 443                                         case ';':
 444                                         case '\0':
 445                                         allow_comma:
 446                                                 if (key) {
 447                                                         keylen = c - key;
 448                                                         st = ST_ADD;
 449                                                 }
 450                                         break;
 451
 452                                         default:
 453                                                 if (!key) {
 454                                                         key = c;
 455                                                 }
 456                                         break;
 457                                 }
 458                         break;
 459
 460                         case ST_ASSIGN:
 461                                 if (*c == '=') {
 462                                         st = ST_VALUE;
 463                                 } else if (!*c || *c == ';') {
 464                                         st = ST_ADD;
 465                                 } else if (*c != ' ') {
 466                                         goto failure;
 467                                 }
 468                         break;
 469
 470                         case ST_ADD:
 471                         add:
 472                                 if (val) {
 473                                         vallen = c - val;
 474                                         if (st != ST_QUOTE) {
 475                                                 while (val[vallen-1] == ' ') --vallen;
 476                                         }
 477                                 } else {
 478                                         val = "";
 479                                         vallen = 0;
 480                                 }
 481
 482                                 cb(cb_arg, key, keylen, val, vallen TSRMLS_CC);
 483
 484                                 st = ST_KEY;
 485                                 key = val = NULL;
 486                                 keylen = vallen = 0;
 487                         break;
 488                 }
 489
 490                 if (*c) {
 491                         ++c;
 492                 } else if (st == ST_ADD) {
 493                         goto add;
 494                 } else {
 495                         break;
 496                 }
 497         }
 498
 499         efree(s);
 500         return SUCCESS;
 501
 502 failure:
 503         http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "Unexpected character (%c) at pos %tu of %zu", *c, c-s, strlen(s));
 504         efree(s);
 505         return FAILURE;
 506 }
 507 /* }}} */
 508
 509 /*
 510  * Local variables:
 511  * tab-width: 4
 512  * c-basic-offset: 4
 513  * End:
 514  * vim600: noet sw=4 ts=4 fdm=marker
 515  * vim<600: noet sw=4 ts=4
 516  */
 517