X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-http;a=blobdiff_plain;f=php_http_header_parser.c;h=2fbcb9394dbae1f5cd8761468ae4ff7799f988f4;hp=fdbac18698572bee89d2c316d2405a833b04363b;hb=refs%2Fheads%2Fv2.4.x;hpb=21f7beb95f0a71f3bc62a91b7802ebdebcc549a0 diff --git a/php_http_header_parser.c b/php_http_header_parser.c index fdbac18..2fbcb93 100644 --- a/php_http_header_parser.c +++ b/php_http_header_parser.c @@ -104,10 +104,10 @@ static void php_http_header_parser_error(size_t valid_len, char *str, size_t len escaped_str = php_addcslashes(str, len, &escaped_len, 0, ZEND_STRL("\x0..\x1F\x7F..\xFF") TSRMLS_CC); - if (valid_len != len) { + if (valid_len != len && (!eol_str || (str+valid_len) != eol_str)) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse headers: unexpected character '\\%03o' at pos %zu of '%.*s'", str[valid_len], valid_len, escaped_len, escaped_str); } else if (eol_str) { - php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse headers: unexpected character '\\%03o' at pos %zu of '%.*s'", *eol_str, eol_str - str, escaped_len, escaped_str); + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse headers: unexpected end of line at pos %zu of '%.*s'", eol_str - str, escaped_len, escaped_str); } else { php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse headers: unexpected end of input at pos %zu of '%.*s'", len, escaped_len, escaped_str); } @@ -115,7 +115,7 @@ static void php_http_header_parser_error(size_t valid_len, char *str, size_t len efree(escaped_str); } -STATUS php_http_header_parser_parse(php_http_header_parser_t *parser, php_http_buffer_t *buffer, unsigned flags, HashTable *headers, php_http_info_callback_t callback_func, void *callback_arg) +php_http_header_parser_state_t php_http_header_parser_parse(php_http_header_parser_t *parser, php_http_buffer_t *buffer, unsigned flags, HashTable *headers, php_http_info_callback_t callback_func, void *callback_arg) { TSRMLS_FETCH_FROM_CTX(parser->ts); @@ -246,6 +246,17 @@ STATUS php_http_header_parser_parse(php_http_header_parser_t *parser, php_http_b case PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE: if (parser->_key.str && parser->_val.str) { zval array, **exist; + size_t valid_len = strlen(parser->_val.str); + + /* check for truncation */ + if (valid_len != parser->_val.len) { + php_http_header_parser_error(valid_len, parser->_val.str, parser->_val.len, NULL TSRMLS_CC); + + PTR_SET(parser->_key.str, NULL); + PTR_SET(parser->_val.str, NULL); + + return php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_FAILURE); + } if (!headers && callback_func) { callback_func(callback_arg, &headers, NULL TSRMLS_CC); @@ -278,7 +289,7 @@ STATUS php_http_header_parser_parse(php_http_header_parser_t *parser, php_http_b php_http_header_parser_state_t php_http_header_parser_parse_stream(php_http_header_parser_t *parser, php_http_buffer_t *buf, php_stream *s, unsigned flags, HashTable *headers, php_http_info_callback_t callback_func, void *callback_arg) { - php_http_message_parser_state_t state = PHP_HTTP_MESSAGE_PARSER_STATE_START; + php_http_header_parser_state_t state = PHP_HTTP_HEADER_PARSER_STATE_START; TSRMLS_FETCH_FROM_CTX(parser->ts); if (!buf->data) {