- improve internal array handling
[m6w6/ext-http] / http_headers_api.c
index b7295ef59b65ca1d0c8c919c9f9507f22f384b1c..ef5099f8681a899421e17c6229a0ed052a2b1cfe 100644 (file)
@@ -1,54 +1,29 @@
 /*
-   +----------------------------------------------------------------------+
-   | PECL :: http                                                         |
-   +----------------------------------------------------------------------+
-   | This source file is subject to version 3.0 of the PHP license, that  |
-   | is bundled with this package in the file LICENSE, and is available   |
-   | through the world-wide-web at http://www.php.net/license/3_0.txt.    |
-   | If you did not receive a copy of the PHP license and are unable to   |
-   | obtain it through the world-wide-web, please send a note to          |
-   | license@php.net so we can mail you a copy immediately.               |
-   +----------------------------------------------------------------------+
-   | Copyright (c) 2004-2005 Michael Wallner <mike@php.net>               |
-   +----------------------------------------------------------------------+
+    +--------------------------------------------------------------------+
+    | PECL :: http                                                       |
+    +--------------------------------------------------------------------+
+    | Redistribution and use in source and binary forms, with or without |
+    | modification, are permitted provided that the conditions mentioned |
+    | in the accompanying LICENSE file are met.                          |
+    +--------------------------------------------------------------------+
+    | Copyright (c) 2004-2006, Michael Wallner <mike@php.net>            |
+    +--------------------------------------------------------------------+
 */
 
 /* $Id$ */
 
-#ifdef HAVE_CONFIG_H
-#      include "config.h"
-#endif
-#include "php.h"
+#include "php_http.h"
 
-#include "ext/standard/php_string.h"
 #include "ext/standard/url.h"
+#include "ext/standard/php_string.h"
 
-#include "php_http.h"
-#include "php_http_std_defs.h"
 #include "php_http_api.h"
 #include "php_http_headers_api.h"
-#include "php_http_info_api.h"
-
-#include <ctype.h>
-
-ZEND_EXTERN_MODULE_GLOBALS(http);
 
 #ifndef HTTP_DBG_NEG
 #      define HTTP_DBG_NEG 0
 #endif
 
-/* {{{ STATUS http_headers_global_init() */
-STATUS _http_headers_global_init(INIT_FUNC_ARGS)
-{
-       HTTP_LONG_CONSTANT("HTTP_REDIRECT", HTTP_REDIRECT);
-       HTTP_LONG_CONSTANT("HTTP_REDIRECT_PERM", HTTP_REDIRECT_PERM);
-       HTTP_LONG_CONSTANT("HTTP_REDIRECT_POST", HTTP_REDIRECT_POST);
-       HTTP_LONG_CONSTANT("HTTP_REDIRECT_TEMP", HTTP_REDIRECT_TEMP);
-       
-       return SUCCESS;
-}
-/* }}} */
-
 /* {{{ static int http_sort_q(const void *, const void *) */
 static int http_sort_q(const void *a, const void *b TSRMLS_DC)
 {
@@ -72,9 +47,10 @@ static int http_sort_q(const void *a, const void *b TSRMLS_DC)
 char *_http_negotiate_language_func(const char *test, double *quality, HashTable *supported TSRMLS_DC)
 {
        zval **value;
+       HashPosition pos;
        const char *dash_test;
        
-       FOREACH_HASH_VAL(supported, value) {
+       FOREACH_HASH_VAL(pos, supported, value) {
 #if HTTP_DBG_NEG
                fprintf(stderr, "strcasecmp('%s', '%s')\n", Z_STRVAL_PP(value), test);
 #endif
@@ -84,16 +60,16 @@ char *_http_negotiate_language_func(const char *test, double *quality, HashTable
        }
        
        /* no distinct match found, so try primaries */
-       if (dash_test = strchr(test, '-')) {
-               FOREACH_HASH_VAL(supported, value) {
+       if ((dash_test = strchr(test, '-'))) {
+               FOREACH_HASH_VAL(pos, supported, value) {
                        int len = dash_test - test;
 #if HTTP_DBG_NEG
-                       fprintf(stderr, "strncascmp('%s', '%s', %d)\n", Z_STRVAL_PP(value), test, len);
+                       fprintf(stderr, "strncasecmp('%s', '%s', %d)\n", Z_STRVAL_PP(value), test, len);
 #endif
                        if (    (!strncasecmp(Z_STRVAL_PP(value), test, len)) &&
                                        (       (Z_STRVAL_PP(value)[len] == '\0') || 
                                                (Z_STRVAL_PP(value)[len] == '-'))) {
-                               *quality /= 2;
+                               *quality *= .9;
                                return Z_STRVAL_PP(value);
                        }
                }
@@ -103,12 +79,13 @@ char *_http_negotiate_language_func(const char *test, double *quality, HashTable
 }
 /* }}} */
 
-/* {{{ char *http_negotiate_charset_func */
-char *_http_negotiate_charset_func(const char *test, double *quality, HashTable *supported TSRMLS_DC)
+/* {{{ char *http_negotiate_default_func */
+char *_http_negotiate_default_func(const char *test, double *quality, HashTable *supported TSRMLS_DC)
 {
        zval **value;
+       HashPosition pos;
        
-       FOREACH_HASH_VAL(supported, value) {
+       FOREACH_HASH_VAL(pos, supported, value) {
 #if HTTP_DBG_NEG
                fprintf(stderr, "strcasecmp('%s', '%s')\n", Z_STRVAL_PP(value), test);
 #endif
@@ -147,40 +124,51 @@ PHP_HTTP_API HashTable *_http_negotiate_q(const char *header, HashTable *support
                
                if (zend_hash_num_elements(Z_ARRVAL(ex_arr)) > 0) {
                        int i = 0;
+                       HashPosition pos;
                        zval **entry, array;
                        
                        INIT_PZVAL(&array);
                        array_init(&array);
                        
-                       FOREACH_HASH_VAL(Z_ARRVAL(ex_arr), entry) {
+                       FOREACH_HASH_VAL(pos, Z_ARRVAL(ex_arr), entry) {
+                               int ident_len;
                                double quality;
-                               char *selected, *identifier;
+                               char *selected, *identifier, *freeme;
                                const char *separator;
                                
 #if HTTP_DBG_NEG
                                fprintf(stderr, "Checking %s\n", Z_STRVAL_PP(entry));
 #endif
                                
-                               if (separator = strchr(Z_STRVAL_PP(entry), ';')) {
+                               if ((separator = strchr(Z_STRVAL_PP(entry), ';'))) {
                                        const char *ptr = separator;
                                        
-                                       while (*++ptr && !isdigit(*ptr));
+                                       while (*++ptr && !HTTP_IS_CTYPE(digit, *ptr) && '.' != *ptr);
                                        
                                        quality = atof(ptr);
-                                       identifier = estrndup(Z_STRVAL_PP(entry), separator - Z_STRVAL_PP(entry));
+                                       identifier = estrndup(Z_STRVAL_PP(entry), ident_len = separator - Z_STRVAL_PP(entry));
                                } else {
                                        quality = 1000.0 - i++;
-                                       identifier = estrndup(Z_STRVAL_PP(entry), Z_STRLEN_PP(entry));
+                                       identifier = estrndup(Z_STRVAL_PP(entry), ident_len = Z_STRLEN_PP(entry));
                                }
+                               freeme = identifier;
                                
-                               if (selected = neg(identifier, &quality, supported TSRMLS_CC)) {
+                               while (HTTP_IS_CTYPE(space, *identifier)) {
+                                       ++identifier;
+                                       --ident_len;
+                               }
+                               while (ident_len && HTTP_IS_CTYPE(space, identifier[ident_len - 1])) {
+                                       identifier[--ident_len] = '\0';
+                               }
+                               
+                               if ((selected = neg(identifier, &quality, supported TSRMLS_CC))) {
                                        /* don't overwrite previously set with higher quality */
                                        if (!zend_hash_exists(Z_ARRVAL(array), selected, strlen(selected) + 1)) {
                                                add_assoc_double(&array, selected, quality);
                                        }
                                }
                                
-                               efree(identifier);
+                               efree(freeme);
                        }
                        
                        result = Z_ARRVAL(array);
@@ -212,14 +200,13 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
        range += sizeof("bytes=") - 1;
 
        do {
-               switch (c = *(range++))
-               {
+               switch (c = *(range++)) {
                        case '0':
                                /* allow 000... - shall we? */
                                if (*ptr != -10) {
                                        *ptr *= 10;
                                }
-                       break;
+                               break;
 
                        case '1': case '2': case '3':
                        case '4': case '5': case '6':
@@ -241,23 +228,21 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                } else {
                                        *ptr = c - '0';
                                }
-                       break;
+                               break;
 
                        case '-':
                                ptr = &end;
-                       break;
+                               break;
 
                        case ' ':
-                               /* IE - ignore for now */
-                       break;
+                               break;
 
                        case 0:
                        case ',':
 
                                if (length) {
                                        /* validate ranges */
-                                       switch (begin)
-                                       {
+                                       switch (begin) {
                                                /* "0-12345" */
                                                case -10:
                                                        /* "0-" */
@@ -269,7 +254,7 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                                                return RANGE_ERR;
                                                        }
                                                        begin = 0;
-                                               break;
+                                                       break;
 
                                                /* "-12345" */
                                                case -1:
@@ -279,16 +264,14 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                                        }
                                                        begin = length - end;
                                                        end = length - 1;
-                                               break;
+                                                       break;
 
                                                /* "12345-(xxx)" */
                                                default:
-                                                       switch (end)
-                                                       {
+                                                       switch (end) {
                                                                /* "12345-0" */
                                                                case -10:
                                                                        return RANGE_ERR;
-                                                               break;
 
                                                                /* "12345-" */
                                                                case -1:
@@ -296,7 +279,7 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                                                                return RANGE_ERR;
                                                                        }
                                                                        end = length - 1;
-                                                               break;
+                                                                       break;
 
                                                                /* "12345-67890" */
                                                                default:
@@ -305,9 +288,9 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                                                                        (end    <  begin)) {
                                                                                return RANGE_ERR;
                                                                        }
-                                                               break;
+                                                                       break;
                                                        }
-                                               break;
+                                                       break;
                                        }
                                }
                                {
@@ -322,11 +305,10 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                        end = -1;
                                        ptr = &begin;
                                }
-                       break;
+                               break;
 
                        default:
                                return RANGE_NO;
-                       break;
                }
        } while (c != 0);
 
@@ -338,148 +320,158 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
 PHP_HTTP_API STATUS _http_parse_headers_ex(const char *header, HashTable *headers, zend_bool prettify, 
        http_info_callback callback_func, void **callback_data TSRMLS_DC)
 {
-       const char *colon = NULL, *line = NULL, *begin = header;
-       const char *body = http_locate_body(header);
-       size_t header_len;
+       const char *colon = NULL, *line = NULL;
        zval array;
-
+       
        INIT_ZARR(array, headers);
        
-       if (body) {
-               header_len = body - header;
-       } else {
-               header_len = strlen(header) + 1;
-       }
+       /* skip leading ws */
+       while (HTTP_IS_CTYPE(space, *header)) ++header;
        line = header;
-
-       while (header_len >= (size_t) (line - begin)) {
+       
+#define MORE_HEADERS (*(line-1) && !(*(line-1) == '\n' && (*line == '\n' || *line == '\r')))
+       do {
                int value_len = 0;
-               /* note: valgrind may choke on that -- should be safe though */
-               switch (*line++)
-               {
+               
+               switch (*line++) {
                        case ':':
                                if (!colon) {
                                        colon = line - 1;
                                }
-                       break;
+                               break;
                        
                        case 0:
                                --value_len; /* we don't have CR so value length is one char less */
                        case '\n':
-                               if ((!(*line - 1)) || ((*line != ' ') && (*line != '\t'))) {
+                               if ((!*(line - 1)) || ((*line != ' ') && (*line != '\t'))) {
                                        http_info i;
                                        
-                                       /* response/request line */
                                        if (SUCCESS == http_info_parse(header, &i)) {
+                                               /* response/request line */
                                                callback_func(callback_data, &headers, &i TSRMLS_CC);
                                                http_info_dtor(&i);
                                                Z_ARRVAL(array) = headers;
-                                       } else
-                                       
-                                       /* "header: value" pair */
-                                       if (colon) {
-
-                                               /* skip empty key */
+                                       } else if (colon) {
+                                               /* "header: value" pair */
                                                if (header != colon) {
-                                                       zval **previous = NULL;
-                                                       char *value;
                                                        int keylen = colon - header;
-                                                       char *key = estrndup(header, keylen);
-
-                                                       if (prettify) {
-                                                               key = pretty_key(key, keylen, 1, 1);
-                                                       }
-
-                                                       value_len += line - colon - 1;
-
+                                                       const char *key = header;
+                                                       
                                                        /* skip leading ws */
-                                                       while (isspace(*(++colon))) --value_len;
+                                                       while (keylen && HTTP_IS_CTYPE(space, *key)) --keylen, ++key;
                                                        /* skip trailing ws */
-                                                       while (isspace(colon[value_len - 1])) --value_len;
-
-                                                       if (value_len > 0) {
-                                                               value = estrndup(colon, value_len);
-                                                       } else {
-                                                               value = estrdup("");
-                                                               value_len = 0;
-                                                       }
-
-                                                       /* if we already have got such a header make an array of those */
-                                                       if (SUCCESS == zend_hash_find(headers, key, keylen + 1, (void **) &previous)) {
-                                                               /* convert to array */
-                                                               if (Z_TYPE_PP(previous) != IS_ARRAY) {
-                                                                       convert_to_array(*previous);
+                                                       while (keylen && HTTP_IS_CTYPE(space, key[keylen - 1])) --keylen;
+                                                       
+                                                       if (keylen > 0) {
+                                                               zval **previous = NULL;
+                                                               char *value;
+                                                               char *keydup = estrndup(key, keylen);
+                                                               
+                                                               if (prettify) {
+                                                                       keydup = pretty_key(keydup, keylen, 1, 1);
+                                                               }
+                                                               
+                                                               value_len += line - colon - 1;
+                                                               
+                                                               /* skip leading ws */
+                                                               while (HTTP_IS_CTYPE(space, *(++colon))) --value_len;
+                                                               /* skip trailing ws */
+                                                               while (HTTP_IS_CTYPE(space, colon[value_len - 1])) --value_len;
+                                                               
+                                                               if (value_len > 0) {
+                                                                       value = estrndup(colon, value_len);
+                                                               } else {
+                                                                       value = estrdup("");
+                                                                       value_len = 0;
                                                                }
-                                                               add_next_index_stringl(*previous, value, value_len, 0);
-                                                       } else {
-                                                               add_assoc_stringl(&array, key, value, value_len, 0);
+                                                               
+                                                               /* if we already have got such a header make an array of those */
+                                                               if (SUCCESS == zend_hash_find(headers, keydup, keylen + 1, (void *) &previous)) {
+                                                                       /* convert to array */
+                                                                       if (Z_TYPE_PP(previous) != IS_ARRAY) {
+                                                                               convert_to_array(*previous);
+                                                                       }
+                                                                       add_next_index_stringl(*previous, value, value_len, 0);
+                                                               } else {
+                                                                       add_assoc_stringl(&array, keydup, value, value_len, 0);
+                                                               }
+                                                               efree(keydup);
+                                                       } else   {
+                                                               /* empty key ("   : ...") */
+                                                               return FAILURE;
                                                        }
-                                                       efree(key);
+                                               } else {
+                                                       /* empty key (": ...") */
+                                                       return FAILURE;
                                                }
+                                       } else if (MORE_HEADERS) {
+                                               /* a line without a colon */
+                                               return FAILURE;
                                        }
                                        colon = NULL;
                                        value_len = 0;
                                        header += line - header;
                                }
-                       break;
+                               break;
                }
-       }
+       } while (MORE_HEADERS);
+
        return SUCCESS;
 }
 /* }}} */
 
-/* {{{ void http_get_request_headers_ex(HashTable *, zend_bool) */
-PHP_HTTP_API void _http_get_request_headers_ex(HashTable *headers, zend_bool prettify TSRMLS_DC)
+/* {{{ void http_get_request_headers(HashTable *) */
+PHP_HTTP_API void _http_get_request_headers(HashTable *headers TSRMLS_DC)
 {
-       char *key = NULL;
-       ulong idx = 0;
-       zval array, **hsv;
-
-       Z_ARRVAL(array) = headers;
-
-       if (SUCCESS == zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &hsv)) {
-               FOREACH_KEY(*hsv, key, idx) {
-                       if (key && !strncmp(key, "HTTP_", 5)) {
-                               zval **header;
+       HashKey key = initHashKey(0);
+       zval **hsv, **header;
+       HashPosition pos;
        
-                               key += 5;
-                               if (prettify) {
-                                       key = pretty_key(key, strlen(key), 1, 1);
+       if (!HTTP_G->request.headers) {
+               ALLOC_HASHTABLE(HTTP_G->request.headers);
+               zend_hash_init(HTTP_G->request.headers, 0, NULL, ZVAL_PTR_DTOR, 0);
+               
+#ifdef ZEND_ENGINE_2
+               zend_is_auto_global("_SERVER", lenof("_SERVER") TSRMLS_CC);
+#endif
+               
+               if (SUCCESS == zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void *) &hsv) && Z_TYPE_PP(hsv) == IS_ARRAY) {
+                       FOREACH_KEY(pos, *hsv, key) {
+                               if (key.type == HASH_KEY_IS_STRING && key.len > 6 && !strncmp(key.str, "HTTP_", 5)) {
+                                       key.len -= 5;
+                                       key.str = pretty_key(estrndup(key.str + 5, key.len - 1), key.len - 1, 1, 1);
+                                       
+                                       zend_hash_get_current_data_ex(Z_ARRVAL_PP(hsv), (void *) &header, &pos);
+                                       ZVAL_ADDREF(*header);
+                                       zend_hash_add(HTTP_G->request.headers, key.str, key.len, (void *) header, sizeof(zval *), NULL);
+                                       
+                                       efree(key.str);
                                }
-       
-                               zend_hash_get_current_data(Z_ARRVAL_PP(hsv), (void **) &header);
-                               add_assoc_stringl(&array, key, Z_STRVAL_PP(header), Z_STRLEN_PP(header), 1);
-                               key = NULL;
                        }
                }
        }
+       
+       if (headers) {
+               zend_hash_copy(headers, HTTP_G->request.headers, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
+       }
 }
 /* }}} */
 
 /* {{{ zend_bool http_match_request_header(char *, char *) */
 PHP_HTTP_API zend_bool _http_match_request_header_ex(const char *header, const char *value, zend_bool match_case TSRMLS_DC)
 {
-       char *name, *key = NULL;
-       ulong idx;
+       char *name;
+       uint name_len = strlen(header);
        zend_bool result = 0;
-       HashTable headers;
-
-       name = pretty_key(estrdup(header), strlen(header), 1, 1);
-       zend_hash_init(&headers, 0, NULL, ZVAL_PTR_DTOR, 0);
-       http_get_request_headers_ex(&headers, 1);
-
-       FOREACH_HASH_KEY(&headers, key, idx) {
-               if (key && (!strcmp(key, name))) {
-                       zval **data;
-
-                       if (SUCCESS == zend_hash_get_current_data(&headers, (void **) &data)) {
-                               result = (match_case ? strcmp(Z_STRVAL_PP(data), value) : strcasecmp(Z_STRVAL_PP(data), value)) ? 0 : 1;
-                       }
-                       break;
-               }
+       zval **data, *zvalue;
+
+       http_get_request_headers(NULL);
+       name = pretty_key(estrndup(header, name_len), name_len, 1, 1);
+       if (SUCCESS == zend_hash_find(HTTP_G->request.headers, name, name_len+1, (void *) &data)) {
+               zvalue = zval_copy(IS_STRING, *data);
+               result = (match_case ? strcmp(Z_STRVAL_P(zvalue), value) : strcasecmp(Z_STRVAL_P(zvalue), value)) ? 0 : 1;
+               zval_free(&zvalue);
        }
-
-       zend_hash_destroy(&headers);
        efree(name);
 
        return result;