- avoid lots of useless ops
[m6w6/ext-http] / http_headers_api.c
index f820a1355891f7d2c7d45f0c836f3bfda9547187..8a4ecc5591f8d9a9ee8c2b4e918a755c56facd4d 100644 (file)
 #ifdef HAVE_CONFIG_H
 #      include "config.h"
 #endif
-
-#include <ctype.h>
-
 #include "php.h"
 
+#include "ext/standard/php_string.h"
+#include "ext/standard/url.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
 
 /* {{{ static int http_sort_q(const void *, const void *) */
 static int http_sort_q(const void *a, const void *b TSRMLS_DC)
@@ -47,54 +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 = strtod(ptr, NULL);
+                                       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;
 }
 /* }}} */
 
@@ -109,7 +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)) {
-               php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Range header misses bytes=");
                return RANGE_NO;
        }
 
@@ -120,7 +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':
@@ -167,7 +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;
@@ -176,7 +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;
@@ -194,7 +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;
@@ -202,8 +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;
                                                                        }
@@ -236,200 +322,155 @@ PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges, size_
 }
 /* }}} */
 
-/* {{{ STATUS http_parse_headers(char *, size_t, HashTable *, zend_bool) */
-PHP_HTTP_API STATUS _http_parse_headers_ex(const char *header, size_t header_len,
-       HashTable *headers, zend_bool prettify TSRMLS_DC)
+/* {{{ 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_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;
        zval array;
 
-       Z_ARRVAL(array) = headers;
-
-       if (header_len < 2) {
-               return FAILURE;
-       }
-
-       /* status code */
-       if (!strncmp(header, "HTTP/1.", 7)) {
-               char *end = strstr(header, HTTP_CRLF);
-               size_t len = end - (header + lenof("HTTP/1.x "));
-               char *val = estrndup(header + lenof("HTTP/1.x "), len);
-               
-               add_assoc_stringl(&array, "Status", val, len, 0);
-               header = end + 2;
+       INIT_ZARR(array, headers);
+       
+       if (body) {
+               header_len = body - header;
+       } else {
+               header_len = strlen(header) + 1;
        }
-
        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 (colon && ((!(*line - 1)) || ((*line != ' ') && (*line != '\t')))) {
-
-                                       /* skip empty key */
-                                       if (header != colon) {
-                                               zval **previous = NULL;
-                                               char *value = empty_string;
-                                               int keylen = colon - header;
-                                               char *key = estrndup(header, keylen);
-
-                                               if (prettify) {
-                                                       key = pretty_key(key, keylen, 1, 1);
-                                               }
-
-                                               value_len += line - colon - 1;
+                               if ((!(*line - 1)) || ((*line != ' ') && (*line != '\t'))) {
+                                       http_info i;
+                                       
+                                       /* response/request line */
+                                       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) {
+
+                                               /* skip empty key */
+                                               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);
+                                                       }
 
-                                               /* skip leading ws */
-                                               while (isspace(*(++colon))) --value_len;
-                                               /* skip trailing ws */
-                                               while (isspace(colon[value_len - 1])) --value_len;
+                                                       value_len += line - colon - 1;
 
-                                               if (value_len > 0) {
-                                                       value = estrndup(colon, value_len);
-                                               } else {
-                                                       value_len = 0;
-                                               }
+                                                       /* skip leading ws */
+                                                       while (isspace(*(++colon))) --value_len;
+                                                       /* skip trailing ws */
+                                                       while (isspace(colon[value_len - 1])) --value_len;
 
-                                               /* if we already have got such a header make an array of those */
-                                               if (SUCCESS == zend_hash_find(headers, key, keylen + 1, (void **) &previous)) {
-                                                       /* already an array? - just add */
-                                                       if (Z_TYPE_PP(previous) == IS_ARRAY) {
-                                                                       add_next_index_stringl(*previous, value, value_len, 0);
+                                                       if (value_len > 0) {
+                                                               value = estrndup(colon, value_len);
                                                        } else {
-                                                               /* create the array */
-                                                               zval *new_array;
-                                                               MAKE_STD_ZVAL(new_array);
-                                                               array_init(new_array);
-
-                                                               add_next_index_stringl(new_array, Z_STRVAL_PP(previous), Z_STRLEN_PP(previous), 1);
-                                                               add_next_index_stringl(new_array, value, value_len, 0);
-                                                               add_assoc_zval(&array, key, new_array);
+                                                               value = estrdup("");
+                                                               value_len = 0;
                                                        }
 
-                                                       previous = NULL;
-                                               } 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, key, 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, key, value, value_len, 0);
+                                                       }
+                                                       efree(key);
                                                }
-                                               efree(key);
                                        }
-
                                        colon = NULL;
                                        value_len = 0;
                                        header += line - header;
                                }
                        break;
-
-                       case ':':
-                               if (!colon) {
-                                       colon = line - 1;
-                               }
-                       break;
                }
        }
        return SUCCESS;
 }
 /* }}} */
 
-/* {{{ */
-PHP_HTTP_API STATUS _http_parse_cookie(const char *cookie, HashTable *values TSRMLS_DC)
+/* {{{ 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)
 {
-       const char *key = cookie, *val = NULL;
-       int vallen = 0, keylen = 0, done = 0;
-       zval array;
-
-       Z_ARRVAL(array) = values;
-
-       if (!(val = strchr(cookie, '='))) {
-               return FAILURE;
-       }
-
-#define HTTP_COOKIE_VAL(array, k, str, len) \
-       { \
-               const char *encoded = str; \
-               char *decoded = NULL; \
-               int decoded_len = 0, encoded_len = len; \
-               decoded = estrndup(encoded, encoded_len); \
-               decoded_len = php_url_decode(decoded, encoded_len); \
-               add_assoc_stringl(array, k, decoded, decoded_len, 0); \
-       }
-#define HTTP_COOKIE_FIXKEY() \
-       { \
-                       while (isspace(*key)) ++key; \
-                       keylen = val - key; \
-                       while (isspace(key[keylen - 1])) --keylen; \
-       }
-#define HTTP_COOKIE_FIXVAL() \
-       { \
-                       ++val; \
-                       while (isspace(*val)) ++val; \
-                       vallen = key - val; \
-                       while (isspace(val[vallen - 1])) --vallen; \
-       }
-
-       HTTP_COOKIE_FIXKEY();
-       HTTP_COOKIE_VAL(&array, "name", key, keylen);
-
-       /* just a name=value cookie */
-       if (!(key = strchr(val, ';'))) {
-               key = val + strlen(val);
-               HTTP_COOKIE_FIXVAL();
-               HTTP_COOKIE_VAL(&array, "value", val, vallen);
-       }
-       /* additional info appended */
-       else {
-               char *keydup = NULL;
+       char *key = NULL;
+       ulong idx = 0;
+       zval array, **hsv;
 
-               HTTP_COOKIE_FIXVAL();
-               HTTP_COOKIE_VAL(&array, "value", val, vallen);
+       Z_ARRVAL(array) = headers;
 
-               do {
-                       if (!(val = strchr(key, '='))) {
-                               break;
-                       }
-                       ++key;
-                       HTTP_COOKIE_FIXKEY();
-                       keydup = estrndup(key, keylen);
-                       if (!(key = strchr(val, ';'))) {
-                               done = 1;
-                               key = val + strlen(val);
+       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;
                        }
-                       HTTP_COOKIE_FIXVAL();
-                       HTTP_COOKIE_VAL(&array, keydup, val, vallen);
-                       efree(keydup);
-               } while (!done);
+               }
        }
-       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)
+/* {{{ 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 *key = NULL;
-       long idx = 0;
-       zval array;
+       char *name, *key = NULL;
+       ulong idx;
+       zend_bool result = 0;
+       HashTable headers;
 
-       Z_ARRVAL(array) = 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(HTTP_SERVER_VARS, key, idx) {
-               if (key && !strncmp(key, "HTTP_", 5)) {
-                       zval **header;
+       FOREACH_HASH_KEY(&headers, key, idx) {
+               if (key && (!strcmp(key, name))) {
+                       zval **data;
 
-                       key += 5;
-                       if (prettify) {
-                               key = pretty_key(key, strlen(key), 1, 1);
+                       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;
                        }
-
-                       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;
+                       break;
                }
        }
+
+       zend_hash_destroy(&headers);
+       efree(name);
+
+       return result;
 }
 /* }}} */