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Unified Diff: net/spdy/spdy_alt_svc_wire_format.cc

Issue 2832973003: Split net/spdy into core and chromium subdirectories. (Closed)
Patch Set: Fix some more build rules. Created 3 years, 8 months ago
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Index: net/spdy/spdy_alt_svc_wire_format.cc
diff --git a/net/spdy/spdy_alt_svc_wire_format.cc b/net/spdy/spdy_alt_svc_wire_format.cc
deleted file mode 100644
index 803fb7bc3d4ab08793d347e591a82e067b7909a7..0000000000000000000000000000000000000000
--- a/net/spdy/spdy_alt_svc_wire_format.cc
+++ /dev/null
@@ -1,357 +0,0 @@
-// Copyright (c) 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/spdy/spdy_alt_svc_wire_format.h"
-
-#include <algorithm>
-#include <cctype>
-#include <limits>
-
-#include "base/logging.h"
-#include "net/spdy/platform/api/spdy_string_utils.h"
-
-namespace net {
-
-namespace {
-
-template <class T>
-bool ParsePositiveIntegerImpl(SpdyStringPiece::const_iterator c,
- SpdyStringPiece::const_iterator end,
- T* value) {
- *value = 0;
- for (; c != end && std::isdigit(*c); ++c) {
- if (*value > std::numeric_limits<T>::max() / 10) {
- return false;
- }
- *value *= 10;
- if (*value > std::numeric_limits<T>::max() - (*c - '0')) {
- return false;
- }
- *value += *c - '0';
- }
- return (c == end && *value > 0);
-}
-
-} // namespace
-
-SpdyAltSvcWireFormat::AlternativeService::AlternativeService() {}
-
-SpdyAltSvcWireFormat::AlternativeService::AlternativeService(
- const SpdyString& protocol_id,
- const SpdyString& host,
- uint16_t port,
- uint32_t max_age,
- VersionVector version)
- : protocol_id(protocol_id),
- host(host),
- port(port),
- max_age(max_age),
- version(version) {}
-
-SpdyAltSvcWireFormat::AlternativeService::~AlternativeService() {}
-
-SpdyAltSvcWireFormat::AlternativeService::AlternativeService(
- const AlternativeService& other) = default;
-
-// static
-bool SpdyAltSvcWireFormat::ParseHeaderFieldValue(
- SpdyStringPiece value,
- AlternativeServiceVector* altsvc_vector) {
- // Empty value is invalid according to the specification.
- if (value.empty()) {
- return false;
- }
- altsvc_vector->clear();
- if (value == SpdyStringPiece("clear")) {
- return true;
- }
- SpdyStringPiece::const_iterator c = value.begin();
- while (c != value.end()) {
- // Parse protocol-id.
- SpdyStringPiece::const_iterator percent_encoded_protocol_id_end =
- std::find(c, value.end(), '=');
- SpdyString protocol_id;
- if (percent_encoded_protocol_id_end == c ||
- !PercentDecode(c, percent_encoded_protocol_id_end, &protocol_id)) {
- return false;
- }
- c = percent_encoded_protocol_id_end;
- if (c == value.end()) {
- return false;
- }
- // Parse alt-authority.
- DCHECK_EQ('=', *c);
- ++c;
- if (c == value.end() || *c != '"') {
- return false;
- }
- ++c;
- SpdyStringPiece::const_iterator alt_authority_begin = c;
- for (; c != value.end() && *c != '"'; ++c) {
- // Decode backslash encoding.
- if (*c != '\\') {
- continue;
- }
- ++c;
- if (c == value.end()) {
- return false;
- }
- }
- if (c == alt_authority_begin || c == value.end()) {
- return false;
- }
- DCHECK_EQ('"', *c);
- SpdyString host;
- uint16_t port;
- if (!ParseAltAuthority(alt_authority_begin, c, &host, &port)) {
- return false;
- }
- ++c;
- // Parse parameters.
- uint32_t max_age = 86400;
- VersionVector version;
- SpdyStringPiece::const_iterator parameters_end =
- std::find(c, value.end(), ',');
- while (c != parameters_end) {
- SkipWhiteSpace(&c, parameters_end);
- if (c == parameters_end) {
- break;
- }
- if (*c != ';') {
- return false;
- }
- ++c;
- SkipWhiteSpace(&c, parameters_end);
- if (c == parameters_end) {
- break;
- }
- SpdyString parameter_name;
- for (; c != parameters_end && *c != '=' && *c != ' ' && *c != '\t'; ++c) {
- parameter_name.push_back(tolower(*c));
- }
- SkipWhiteSpace(&c, parameters_end);
- if (c == parameters_end || *c != '=') {
- return false;
- }
- ++c;
- SkipWhiteSpace(&c, parameters_end);
- SpdyStringPiece::const_iterator parameter_value_begin = c;
- for (; c != parameters_end && *c != ';' && *c != ' ' && *c != '\t'; ++c) {
- }
- if (c == parameter_value_begin) {
- return false;
- }
- if (parameter_name.compare("ma") == 0) {
- if (!ParsePositiveInteger32(parameter_value_begin, c, &max_age)) {
- return false;
- }
- } else if (parameter_name.compare("v") == 0) {
- // Version is a comma separated list of positive integers enclosed in
- // quotation marks. Since it can contain commas, which are not
- // delineating alternative service entries, |parameters_end| and |c| can
- // be invalid.
- if (*parameter_value_begin != '"') {
- return false;
- }
- c = std::find(parameter_value_begin + 1, value.end(), '"');
- if (c == value.end()) {
- return false;
- }
- ++c;
- parameters_end = std::find(c, value.end(), ',');
- SpdyStringPiece::const_iterator v_begin = parameter_value_begin + 1;
- while (v_begin < c) {
- SpdyStringPiece::const_iterator v_end = v_begin;
- while (v_end < c - 1 && *v_end != ',') {
- ++v_end;
- }
- uint16_t v;
- if (!ParsePositiveInteger16(v_begin, v_end, &v)) {
- return false;
- }
- version.push_back(v);
- v_begin = v_end + 1;
- if (v_begin == c - 1) {
- // List ends in comma.
- return false;
- }
- }
- }
- }
- altsvc_vector->emplace_back(protocol_id, host, port, max_age, version);
- for (; c != value.end() && (*c == ' ' || *c == '\t' || *c == ','); ++c) {
- }
- }
- return true;
-}
-
-// static
-SpdyString SpdyAltSvcWireFormat::SerializeHeaderFieldValue(
- const AlternativeServiceVector& altsvc_vector) {
- if (altsvc_vector.empty()) {
- return SpdyString("clear");
- }
- const char kNibbleToHex[] = "0123456789ABCDEF";
- SpdyString value;
- for (const AlternativeService& altsvc : altsvc_vector) {
- if (!value.empty()) {
- value.push_back(',');
- }
- // Percent escape protocol id according to
- // http://tools.ietf.org/html/rfc7230#section-3.2.6.
- for (char c : altsvc.protocol_id) {
- if (isalnum(c)) {
- value.push_back(c);
- continue;
- }
- switch (c) {
- case '!':
- case '#':
- case '$':
- case '&':
- case '\'':
- case '*':
- case '+':
- case '-':
- case '.':
- case '^':
- case '_':
- case '`':
- case '|':
- case '~':
- value.push_back(c);
- break;
- default:
- value.push_back('%');
- // Network byte order is big-endian.
- value.push_back(kNibbleToHex[c >> 4]);
- value.push_back(kNibbleToHex[c & 0x0f]);
- break;
- }
- }
- value.push_back('=');
- value.push_back('"');
- for (char c : altsvc.host) {
- if (c == '"' || c == '\\') {
- value.push_back('\\');
- }
- value.push_back(c);
- }
- SpdyStringAppendF(&value, ":%d\"", altsvc.port);
- if (altsvc.max_age != 86400) {
- SpdyStringAppendF(&value, "; ma=%d", altsvc.max_age);
- }
- if (!altsvc.version.empty()) {
- value.append("; v=\"");
- for (VersionVector::const_iterator it = altsvc.version.begin();
- it != altsvc.version.end(); ++it) {
- if (it != altsvc.version.begin()) {
- value.append(",");
- }
- SpdyStringAppendF(&value, "%d", *it);
- }
- value.append("\"");
- }
- }
- return value;
-}
-
-// static
-void SpdyAltSvcWireFormat::SkipWhiteSpace(SpdyStringPiece::const_iterator* c,
- SpdyStringPiece::const_iterator end) {
- for (; *c != end && (**c == ' ' || **c == '\t'); ++*c) {
- }
-}
-
-// static
-bool SpdyAltSvcWireFormat::PercentDecode(SpdyStringPiece::const_iterator c,
- SpdyStringPiece::const_iterator end,
- SpdyString* output) {
- output->clear();
- for (; c != end; ++c) {
- if (*c != '%') {
- output->push_back(*c);
- continue;
- }
- DCHECK_EQ('%', *c);
- ++c;
- if (c == end || !std::isxdigit(*c)) {
- return false;
- }
- // Network byte order is big-endian.
- char decoded = SpdyHexDigitToInt(*c) << 4;
- ++c;
- if (c == end || !std::isxdigit(*c)) {
- return false;
- }
- decoded += SpdyHexDigitToInt(*c);
- output->push_back(decoded);
- }
- return true;
-}
-
-// static
-bool SpdyAltSvcWireFormat::ParseAltAuthority(
- SpdyStringPiece::const_iterator c,
- SpdyStringPiece::const_iterator end,
- SpdyString* host,
- uint16_t* port) {
- host->clear();
- if (c == end) {
- return false;
- }
- if (*c == '[') {
- for (; c != end && *c != ']'; ++c) {
- if (*c == '"') {
- // Port is mandatory.
- return false;
- }
- host->push_back(*c);
- }
- if (c == end) {
- return false;
- }
- DCHECK_EQ(']', *c);
- host->push_back(*c);
- ++c;
- } else {
- for (; c != end && *c != ':'; ++c) {
- if (*c == '"') {
- // Port is mandatory.
- return false;
- }
- if (*c == '\\') {
- ++c;
- if (c == end) {
- return false;
- }
- }
- host->push_back(*c);
- }
- }
- if (c == end || *c != ':') {
- return false;
- }
- DCHECK_EQ(':', *c);
- ++c;
- return ParsePositiveInteger16(c, end, port);
-}
-
-// static
-bool SpdyAltSvcWireFormat::ParsePositiveInteger16(
- SpdyStringPiece::const_iterator c,
- SpdyStringPiece::const_iterator end,
- uint16_t* value) {
- return ParsePositiveIntegerImpl<uint16_t>(c, end, value);
-}
-
-// static
-bool SpdyAltSvcWireFormat::ParsePositiveInteger32(
- SpdyStringPiece::const_iterator c,
- SpdyStringPiece::const_iterator end,
- uint32_t* value) {
- return ParsePositiveIntegerImpl<uint32_t>(c, end, value);
-}
-
-} // namespace net
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