- fixed a gotcha in http_chunked_decode (-size_t is always > 0)
[m6w6/ext-http] / http_headers_api.c
index f264b68ae4c4ccd1771b2cc289869e959cd28eb5..63c46abad58a8d23f2a9004ee568e9f7227062cd 100644 (file)
 #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
+
 /* {{{ static int http_sort_q(const void *, const void *) */
 static int http_sort_q(const void *a, const void *b TSRMLS_DC)
 {
@@ -49,54 +56,129 @@ static int http_sort_q(const void *a, const void *b TSRMLS_DC)
 }
 /* }}} */
 
-/* {{{ char *http_negotiate_q(char *, HashTable *, char *) */
-PHP_HTTP_API char *_http_negotiate_q(const char *entry, const HashTable *supported,    const char *def TSRMLS_DC)
+/* {{{ char *http_negotiate_language_func */
+char *_http_negotiate_language_func(const char *test, double *quality, HashTable *supported TSRMLS_DC)
 {
-       zval *zaccept, zdelim, zarray, zentries, **zentry, **zsupp;
-       char *q_ptr = NULL, *key = NULL;
-       int i = 0;
-       ulong idx = 0;
-       double qual;
-
-       HTTP_GSC(zaccept, entry, estrdup(def));
-
-       array_init(&zarray);
-       array_init(&zentries);
-
-       Z_STRVAL(zdelim) = ",";
-       Z_STRLEN(zdelim) = 1;
-
-       php_explode(&zdelim, zaccept, &zarray, -1);
-
-       FOREACH_HASH_VAL(Z_ARRVAL(zarray), zentry) {
-               if (q_ptr = strrchr(Z_STRVAL_PP(zentry), ';')) {
-                       qual = strtod(q_ptr + 3, NULL);
-                       *q_ptr = 0;
-                       q_ptr = NULL;
-               } else {
-                       qual = 1000.0 - i++;
+       zval **value;
+       const char *dash_test;
+       
+       FOREACH_HASH_VAL(supported, value) {
+#if HTTP_DBG_NEG
+               fprintf(stderr, "strcasecmp('%s', '%s')\n", Z_STRVAL_PP(value), test);
+#endif
+               if (!strcasecmp(Z_STRVAL_PP(value), test)) {
+                       return Z_STRVAL_PP(value);
                }
-               FOREACH_HASH_VAL((HashTable *)supported, zsupp) {
-                       if (!strcasecmp(Z_STRVAL_PP(zsupp), Z_STRVAL_PP(zentry))) {
-                               add_assoc_double(&zentries, Z_STRVAL_PP(zsupp), qual);
-                               break;
+       }
+       
+       /* no distinct match found, so try primaries */
+       if (dash_test = strchr(test, '-')) {
+               FOREACH_HASH_VAL(supported, value) {
+                       int len = dash_test - test;
+#if HTTP_DBG_NEG
+                       fprintf(stderr, "strncascmp('%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;
+                               return Z_STRVAL_PP(value);
                        }
                }
        }
-       zval_dtor(&zarray);
-
-       zend_hash_sort(Z_ARRVAL(zentries), zend_qsort, http_sort_q, 0 TSRMLS_CC);
+       
+       return NULL;
+}
+/* }}} */
 
-       FOREACH_HASH_KEY(Z_ARRVAL(zentries), key, idx) {
-               if (key) {
-                       key = estrdup(key);
-                       zval_dtor(&zentries);
-                       return key;
+/* {{{ char *http_negotiate_charset_func */
+char *_http_negotiate_charset_func(const char *test, double *quality, HashTable *supported TSRMLS_DC)
+{
+       zval **value;
+       
+       FOREACH_HASH_VAL(supported, value) {
+#if HTTP_DBG_NEG
+               fprintf(stderr, "strcasecmp('%s', '%s')\n", Z_STRVAL_PP(value), test);
+#endif
+               if (!strcasecmp(Z_STRVAL_PP(value), test)) {
+                       return Z_STRVAL_PP(value);
                }
        }
-       zval_dtor(&zentries);
+       
+       return NULL;
+}
+/* }}} */
 
-       return estrdup(def);
+/* {{{ HashTable *http_negotiate_q(const char *, HashTable *, negotiate_func_t) */
+PHP_HTTP_API HashTable *_http_negotiate_q(const char *header, HashTable *supported, negotiate_func_t neg TSRMLS_DC)
+{
+       zval *accept;
+       HashTable *result = NULL;
+       
+#if HTTP_DBG_NEG
+       fprintf(stderr, "Reading header %s: ", header);
+#endif
+       HTTP_GSC(accept, header, NULL);
+#if HTTP_DBG_NEG
+       fprintf(stderr, "%s\n", Z_STRVAL_P(accept));
+#endif
+       
+       if (Z_STRLEN_P(accept)) {
+               zval ex_arr, ex_del;
+               
+               INIT_PZVAL(&ex_del);
+               INIT_PZVAL(&ex_arr);
+               ZVAL_STRINGL(&ex_del, ",", 1, 0);
+               array_init(&ex_arr);
+               
+               php_explode(&ex_del, accept, &ex_arr, -1);
+               
+               if (zend_hash_num_elements(Z_ARRVAL(ex_arr)) > 0) {
+                       int i = 0;
+                       zval **entry, array;
+                       
+                       INIT_PZVAL(&array);
+                       array_init(&array);
+                       
+                       FOREACH_HASH_VAL(Z_ARRVAL(ex_arr), entry) {
+                               double quality;
+                               char *selected, *identifier;
+                               const char *separator;
+                               
+#if HTTP_DBG_NEG
+                               fprintf(stderr, "Checking %s\n", Z_STRVAL_PP(entry));
+#endif
+                               
+                               if (separator = strchr(Z_STRVAL_PP(entry), ';')) {
+                                       const char *ptr = separator;
+                                       
+                                       while (*++ptr && !isdigit(*ptr));
+                                       
+                                       quality = atof(ptr);
+                                       identifier = estrndup(Z_STRVAL_PP(entry), separator - Z_STRVAL_PP(entry));
+                               } else {
+                                       quality = 1000.0 - i++;
+                                       identifier = estrndup(Z_STRVAL_PP(entry), Z_STRLEN_PP(entry));
+                               }
+                               
+                               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);
+                       }
+                       
+                       result = Z_ARRVAL(array);
+                       zend_hash_sort(result, zend_qsort, http_sort_q, 0 TSRMLS_CC);
+               }
+               
+               zval_dtor(&ex_arr);
+       }
+       
+       return result;
 }
 /* }}} */
 
@@ -111,7 +193,6 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
        range = Z_STRVAL_P(zrange);
 
        if (strncmp(range, "bytes=", sizeof("bytes=") - 1)) {
-               http_error(E_NOTICE, HTTP_E_HEADER, "Range header misses bytes=");
                return RANGE_NO;
        }
 
@@ -122,7 +203,10 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                switch (c = *(range++))
                {
                        case '0':
-                               *ptr *= 10;
+                               /* allow 000... - shall we? */
+                               if (*ptr != -10) {
+                                       *ptr *= 10;
+                               }
                        break;
 
                        case '1': case '2': case '3':
@@ -169,7 +253,7 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                                                return RANGE_NO;
                                                        }
                                                        /* "0-0" or overflow */
-                                                       if (end == -10 || length <= end) {
+                                                       if (end == -10 || length <= (size_t) end) {
                                                                return RANGE_ERR;
                                                        }
                                                        begin = 0;
@@ -178,7 +262,7 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
                                                /* "-12345" */
                                                case -1:
                                                        /* "-", "-0" or overflow */
-                                                       if (end == -1 || end == -10 || length <= end) {
+                                                       if (end == -1 || end == -10 || length <= (size_t) end) {
                                                                return RANGE_ERR;
                                                        }
                                                        begin = length - end;
@@ -196,7 +280,7 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
 
                                                                /* "12345-" */
                                                                case -1:
-                                                                       if (length <= begin) {
+                                                                       if (length <= (size_t) begin) {
                                                                                return RANGE_ERR;
                                                                        }
                                                                        end = length - 1;
@@ -204,8 +288,8 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
 
                                                                /* "12345-67890" */
                                                                default:
-                                                                       if (    (length <= begin) ||
-                                                                                       (length <= end)   ||
+                                                                       if (    (length <= (size_t) begin) ||
+                                                                                       (length <= (size_t) end)   ||
                                                                                        (end    <  begin)) {
                                                                                return RANGE_ERR;
                                                                        }
@@ -239,46 +323,47 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
 /* }}} */
 
 /* {{{ STATUS http_parse_headers(char *, HashTable *, zend_bool) */
-PHP_HTTP_API STATUS _http_parse_headers_ex(const char *header, HashTable *headers, zend_bool prettify, http_parse_headers_callback_t func, void **callback_data TSRMLS_DC)
+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, *crlfcrlf = NULL;
+       const char *colon = NULL, *line = NULL, *begin = header;
+       const char *body = http_locate_body(header);
        size_t header_len;
        zval array;
 
-       Z_ARRVAL(array) = headers;
-
-       if (crlfcrlf = strstr(header, HTTP_CRLF HTTP_CRLF)) {
-               header_len = crlfcrlf - header + lenof(HTTP_CRLF);
+       INIT_ZARR(array, headers);
+       
+       if (body) {
+               header_len = body - header;
        } else {
                header_len = strlen(header) + 1;
        }
-
-
-       if (header_len < 2 || !strchr(header, ':')) {
-               http_error(E_WARNING, HTTP_E_PARSE, "Cannot parse too short or malformed HTTP headers");
-               return FAILURE;
-       }
-
        line = header;
 
-       while (header_len >= (line - begin)) {
+       while (header_len >= (size_t) (line - begin)) {
                int value_len = 0;
-
+               /* note: valgrind may choke on that -- should be safe though */
                switch (*line++)
                {
+                       case ':':
+                               if (!colon) {
+                                       colon = line - 1;
+                               }
+                       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'))) {
+                                       http_info i;
+                                       
                                        /* response/request line */
-                    if (    (!strncmp(header, "HTTP/1.", lenof("HTTP/1."))) ||
-                            (!strncmp(line - lenof("HTTP/1.x" HTTP_CRLF) + value_len, "HTTP/1.", lenof("HTTP/1.")))) {
-                                               if (func) {
-                                                       func(header, &headers, callback_data TSRMLS_CC);
-                                                       Z_ARRVAL(array) = headers;
-                                               }
+                                       if (SUCCESS == http_info_parse(header, &i)) {
+                                               callback_func(callback_data, &headers, &i TSRMLS_CC);
+                                               http_info_dtor(&i);
+                                               Z_ARRVAL(array) = headers;
                                        } else
-
+                                       
                                        /* "header: value" pair */
                                        if (colon) {
 
@@ -325,68 +410,35 @@ PHP_HTTP_API STATUS _http_parse_headers_ex(const char *header, HashTable *header
                                        header += line - header;
                                }
                        break;
-
-                       case ':':
-                               if (!colon) {
-                                       colon = line - 1;
-                               }
-                       break;
                }
        }
        return SUCCESS;
 }
 /* }}} */
 
-PHP_HTTP_API void _http_parse_headers_default_callback(const char *http_line, HashTable **headers, void **cb_data TSRMLS_DC)
-{
-       zval array;
-       char *crlf = NULL;
-       size_t line_length;
-       Z_ARRVAL(array) = *headers;
-
-       if (crlf = strstr(http_line, HTTP_CRLF)) {
-               line_length = crlf - http_line;
-       } else {
-               line_length = strlen(http_line);
-       }
-
-       /* response */
-       if (!strncmp(http_line, "HTTP/1.", lenof("HTTP/1."))) {
-               char *status = estrndup(http_line + lenof("HTTP/1.x "), line_length - lenof("HTTP/1.x "));
-               add_assoc_stringl(&array, "Response Status", status, line_length - lenof("HTTP/1.x "), 0);
-       } else
-       /* request */
-       if (!strncmp(http_line + line_length - lenof("HTTP/1.x"), "HTTP/1.", lenof("HTTP/1."))) {
-               char *sep = strchr(http_line, ' ');
-               char *url = estrndup(sep + 1, strstr(sep, "HTTP/1.") - sep + 1 + 1);
-               char *met = estrndup(http_line, sep - http_line);
-
-               add_assoc_stringl(&array, "Request Method", met, sep - http_line, 0);
-               add_assoc_stringl(&array, "Request Uri", url, strstr(sep, "HTTP/1.") - sep + 1 + 1, 0);
-       }
-}
-
 /* {{{ 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)
 {
        char *key = NULL;
        ulong idx = 0;
-       zval array;
+       zval array, **hsv;
 
        Z_ARRVAL(array) = headers;
 
-       FOREACH_HASH_KEY(HTTP_SERVER_VARS, key, idx) {
-               if (key && !strncmp(key, "HTTP_", 5)) {
-                       zval **header;
-
-                       key += 5;
-                       if (prettify) {
-                               key = pretty_key(key, strlen(key), 1, 1);
+       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;
+       
+                               key += 5;
+                               if (prettify) {
+                                       key = pretty_key(key, strlen(key), 1, 1);
+                               }
+       
+                               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;
                        }
-
-                       zend_hash_get_current_data(HTTP_SERVER_VARS, (void **) &header);
-                       add_assoc_stringl(&array, key, Z_STRVAL_PP(header), Z_STRLEN_PP(header), 1);
-                       key = NULL;
                }
        }
 }