mirror of
https://github.com/dart-lang/sdk
synced 2024-09-05 16:41:07 +00:00
[http] loosen status code constraints and rephrase some http exceptions
1. Remove limitation of http response status code check. It used to be [100, 599]. Extends range to [0, 999] to allow users to use customized status code. 2. Rephrase some http exceptions to be more informative. 3. Possibly a bug in isHead setter, where it is only allowed to set to true. Bug: https://github.com/dart-lang/sdk/issues/38898 Change-Id: I77d8d66eb8333dec1f53742821860b802f74f680 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134763 Commit-Queue: Zichang Guo <zichangguo@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com>
This commit is contained in:
parent
86b1b9d03c
commit
91eee195fc
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@ -406,10 +406,10 @@ class _HttpParser extends Stream<_HttpIncoming> {
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assert(!_parserCalled);
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_parserCalled = true;
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if (_state == _State.CLOSED) {
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throw new HttpException("Data on closed connection");
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throw HttpException("Data on closed connection");
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}
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if (_state == _State.FAILURE) {
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throw new HttpException("Data on failed connection");
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throw HttpException("Data on failed connection");
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}
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while (_buffer != null &&
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_index < _buffer.length &&
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@ -431,11 +431,11 @@ class _HttpParser extends Stream<_HttpIncoming> {
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} else {
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// Start parsing method.
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if (!_isTokenChar(byte)) {
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throw new HttpException("Invalid request method");
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throw HttpException("Invalid request method");
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}
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_method.add(byte);
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if (!_requestParser) {
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throw new HttpException("Invalid response line");
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throw HttpException("Invalid response line");
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}
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_state = _State.REQUEST_LINE_METHOD;
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}
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@ -452,7 +452,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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// method anymore.
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_httpVersionIndex++;
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if (_requestParser) {
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throw new HttpException("Invalid request line");
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throw HttpException("Invalid request line");
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}
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_state = _State.RESPONSE_HTTP_VERSION;
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} else {
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@ -466,7 +466,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_method.add(byte);
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_httpVersion = _HttpVersion.UNDETERMINED;
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if (!_requestParser) {
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throw new HttpException("Invalid response line");
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throw HttpException("Invalid response line");
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}
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_state = _State.REQUEST_LINE_METHOD;
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}
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@ -495,7 +495,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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// HTTP version parsed.
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_state = _State.RESPONSE_LINE_STATUS_CODE;
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} else {
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throw new HttpException("Invalid response line");
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throw HttpException(
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"Invalid response line, failed to parse HTTP version");
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}
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break;
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@ -506,7 +507,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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if (_Const.SEPARATOR_MAP[byte] ||
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byte == _CharCode.CR ||
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byte == _CharCode.LF) {
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throw new HttpException("Invalid request method");
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throw HttpException("Invalid request method");
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}
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_method.add(byte);
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}
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@ -515,13 +516,13 @@ class _HttpParser extends Stream<_HttpIncoming> {
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case _State.REQUEST_LINE_URI:
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if (byte == _CharCode.SP) {
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if (_uriOrReasonPhrase.length == 0) {
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throw new HttpException("Invalid request URI");
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throw HttpException("Invalid request, empty URI");
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}
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_state = _State.REQUEST_LINE_HTTP_VERSION;
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_httpVersionIndex = 0;
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} else {
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if (byte == _CharCode.CR || byte == _CharCode.LF) {
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throw new HttpException("Invalid request URI");
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throw HttpException("Invalid request, unexpected $byte in URI");
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}
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_uriOrReasonPhrase.add(byte);
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}
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@ -543,7 +544,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_persistentConnection = false;
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_httpVersionIndex++;
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} else {
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throw new HttpException("Invalid response line");
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throw HttpException("Invalid response, invalid HTTP version");
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}
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} else {
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if (byte == _CharCode.CR) {
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@ -571,8 +572,11 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_state = _State.RESPONSE_LINE_ENDING;
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} else {
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_statusCodeLength++;
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if (byte < 0x30 || byte > 0x39 || _statusCodeLength > 3) {
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throw new HttpException("Invalid response status code");
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if (byte < 0x30 || byte > 0x39) {
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throw HttpException("Invalid response status code with $byte");
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} else if (_statusCodeLength > 3) {
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throw HttpException(
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"Invalid response, status code is over 3 digits");
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} else {
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_statusCode = _statusCode * 10 + byte - 0x30;
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}
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@ -584,7 +588,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_state = _State.RESPONSE_LINE_ENDING;
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} else {
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if (byte == _CharCode.CR || byte == _CharCode.LF) {
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throw new HttpException("Invalid response reason phrase");
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throw HttpException(
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"Invalid response, unexpected $byte in reason phrase");
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}
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_uriOrReasonPhrase.add(byte);
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}
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@ -593,15 +598,9 @@ class _HttpParser extends Stream<_HttpIncoming> {
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case _State.RESPONSE_LINE_ENDING:
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_expect(byte, _CharCode.LF);
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_messageType == _MessageType.RESPONSE;
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if (_statusCode < 100 || _statusCode > 599) {
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throw new HttpException("Invalid response status code");
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} else {
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// Check whether this response will never have a body.
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if (_statusCode <= 199 ||
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_statusCode == 204 ||
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_statusCode == 304) {
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_noMessageBody = true;
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}
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// Check whether this response will never have a body.
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if (_statusCode <= 199 || _statusCode == 204 || _statusCode == 304) {
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_noMessageBody = true;
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}
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_state = _State.HEADER_START;
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break;
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@ -625,7 +624,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_state = _State.HEADER_VALUE_START;
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} else {
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if (!_isTokenChar(byte)) {
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throw new HttpException("Invalid header field name");
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throw HttpException("Invalid header field name, with $byte");
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}
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_headerField.add(_toLowerCaseByte(byte));
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}
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@ -706,10 +705,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_expect(byte, _CharCode.LF);
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if (_headersEnd()) {
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return;
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} else {
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break;
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}
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return;
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break;
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case _State.CHUNK_SIZE_STARTING_CR:
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_expect(byte, _CharCode.CR);
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@ -884,9 +881,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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bool get upgrade => _connectionUpgrade && _state == _State.UPGRADED;
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bool get persistentConnection => _persistentConnection;
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void set isHead(bool value) {
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if (value) _noMessageBody = true;
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}
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void set isHead(bool value) => _noMessageBody = value ?? false;
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_HttpDetachedIncoming detachIncoming() {
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// Simulate detached by marking as upgraded.
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@ -978,8 +973,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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void _expect(int val1, int val2) {
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if (val1 != val2) {
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throw new HttpException(
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"Failed to parse HTTP, $val1 does not match $val2");
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throw HttpException("Failed to parse HTTP, $val1 does not match $val2");
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}
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}
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@ -991,8 +985,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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} else if (0x61 <= byte && byte <= 0x66) {
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return byte - 0x61 + 10; // a - f
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} else {
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throw new HttpException(
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"Failed to parse HTTP, $byte should be a Hex digit");
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throw HttpException(
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"Failed to parse HTTP, $byte is expected to be a Hex digit");
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}
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}
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@ -400,10 +400,10 @@ class _HttpParser extends Stream<_HttpIncoming> {
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assert(!_parserCalled);
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_parserCalled = true;
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if (_state == _State.CLOSED) {
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throw new HttpException("Data on closed connection");
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throw HttpException("Data on closed connection");
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}
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if (_state == _State.FAILURE) {
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throw new HttpException("Data on failed connection");
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throw HttpException("Data on failed connection");
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}
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while (_buffer != null &&
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_index < _buffer!.length &&
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@ -427,11 +427,11 @@ class _HttpParser extends Stream<_HttpIncoming> {
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} else {
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// Start parsing method.
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if (!_isTokenChar(byte)) {
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throw new HttpException("Invalid request method");
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throw HttpException("Invalid request method");
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}
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_method.add(byte);
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if (!_requestParser) {
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throw new HttpException("Invalid response line");
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throw HttpException("Invalid response line");
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}
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_state = _State.REQUEST_LINE_METHOD;
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}
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@ -449,7 +449,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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// method anymore.
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_httpVersionIndex = httpVersionIndex + 1;
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if (_requestParser) {
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throw new HttpException("Invalid request line");
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throw HttpException("Invalid request line");
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}
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_state = _State.RESPONSE_HTTP_VERSION;
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} else {
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@ -463,7 +463,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_method.add(byte);
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_httpVersion = _HttpVersion.UNDETERMINED;
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if (!_requestParser) {
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throw new HttpException("Invalid response line");
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throw HttpException("Invalid response line");
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}
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_state = _State.REQUEST_LINE_METHOD;
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}
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@ -493,7 +493,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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// HTTP version parsed.
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_state = _State.RESPONSE_LINE_STATUS_CODE;
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} else {
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throw new HttpException("Invalid response line");
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throw HttpException(
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"Invalid response line, failed to parse HTTP version");
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}
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break;
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@ -504,7 +505,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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if (_Const.SEPARATOR_MAP[byte] ||
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byte == _CharCode.CR ||
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byte == _CharCode.LF) {
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throw new HttpException("Invalid request method");
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throw HttpException("Invalid request method");
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}
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_method.add(byte);
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}
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@ -513,13 +514,13 @@ class _HttpParser extends Stream<_HttpIncoming> {
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case _State.REQUEST_LINE_URI:
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if (byte == _CharCode.SP) {
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if (_uriOrReasonPhrase.length == 0) {
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throw new HttpException("Invalid request URI");
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throw HttpException("Invalid request, empty URI");
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}
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_state = _State.REQUEST_LINE_HTTP_VERSION;
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_httpVersionIndex = 0;
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} else {
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if (byte == _CharCode.CR || byte == _CharCode.LF) {
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throw new HttpException("Invalid request URI");
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throw HttpException("Invalid request, unexpected $byte in URI");
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}
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_uriOrReasonPhrase.add(byte);
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}
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@ -542,7 +543,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_persistentConnection = false;
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_httpVersionIndex = httpVersionIndex + 1;
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} else {
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throw new HttpException("Invalid response line");
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throw HttpException("Invalid response, invalid HTTP version");
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}
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} else {
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if (byte == _CharCode.CR) {
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@ -570,8 +571,11 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_state = _State.RESPONSE_LINE_ENDING;
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} else {
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_statusCodeLength++;
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if (byte < 0x30 || byte > 0x39 || _statusCodeLength > 3) {
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throw new HttpException("Invalid response status code");
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if (byte < 0x30 || byte > 0x39) {
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throw HttpException("Invalid response status code with $byte");
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} else if (_statusCodeLength > 3) {
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throw HttpException(
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"Invalid response, status code is over 3 digits");
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} else {
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_statusCode = _statusCode * 10 + byte - 0x30;
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}
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@ -583,7 +587,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_state = _State.RESPONSE_LINE_ENDING;
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} else {
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if (byte == _CharCode.CR || byte == _CharCode.LF) {
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throw new HttpException("Invalid response reason phrase");
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throw HttpException(
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"Invalid response, unexpected $byte in reason phrase");
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}
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_uriOrReasonPhrase.add(byte);
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}
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@ -592,15 +597,9 @@ class _HttpParser extends Stream<_HttpIncoming> {
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case _State.RESPONSE_LINE_ENDING:
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_expect(byte, _CharCode.LF);
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_messageType == _MessageType.RESPONSE;
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if (_statusCode < 100 || _statusCode > 599) {
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throw new HttpException("Invalid response status code");
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} else {
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// Check whether this response will never have a body.
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if (_statusCode <= 199 ||
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_statusCode == 204 ||
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_statusCode == 304) {
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_noMessageBody = true;
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}
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// Check whether this response will never have a body.
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if (_statusCode <= 199 || _statusCode == 204 || _statusCode == 304) {
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_noMessageBody = true;
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}
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_state = _State.HEADER_START;
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break;
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@ -624,7 +623,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_state = _State.HEADER_VALUE_START;
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} else {
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if (!_isTokenChar(byte)) {
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throw new HttpException("Invalid header field name");
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throw HttpException("Invalid header field name, with $byte");
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}
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_headerField.add(_toLowerCaseByte(byte));
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}
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@ -706,10 +705,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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_expect(byte, _CharCode.LF);
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if (_headersEnd()) {
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return;
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} else {
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break;
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}
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return;
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break;
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case _State.CHUNK_SIZE_STARTING_CR:
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_expect(byte, _CharCode.CR);
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@ -886,9 +883,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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bool get upgrade => _connectionUpgrade && _state == _State.UPGRADED;
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bool get persistentConnection => _persistentConnection;
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void set isHead(bool value) {
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if (value) _noMessageBody = true;
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}
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void set isHead(bool value) => _noMessageBody = value ?? false;
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_HttpDetachedIncoming detachIncoming() {
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// Simulate detached by marking as upgraded.
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@ -982,8 +977,7 @@ class _HttpParser extends Stream<_HttpIncoming> {
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void _expect(int val1, int val2) {
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if (val1 != val2) {
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throw new HttpException(
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"Failed to parse HTTP, $val1 does not match $val2");
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throw HttpException("Failed to parse HTTP, $val1 does not match $val2");
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}
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}
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@ -995,8 +989,8 @@ class _HttpParser extends Stream<_HttpIncoming> {
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} else if (0x61 <= byte && byte <= 0x66) {
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return byte - 0x61 + 10; // a - f
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} else {
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throw new HttpException(
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"Failed to parse HTTP, $byte should be a Hex digit");
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throw HttpException(
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"Failed to parse HTTP, $byte is expected to be a Hex digit");
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}
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}
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