| // Copyright (c) 2011 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 <limits.h> |
| |
| #include <algorithm> |
| #include <string> |
| #include <vector> |
| |
| #if defined(USE_SYSTEM_ZLIB) |
| #include <zlib.h> |
| #else |
| #include "third_party/zlib/zlib.h" |
| #endif |
| |
| #include "base/logging.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "net/base/filter.h" |
| #include "net/base/io_buffer.h" |
| #include "net/base/mock_filter_context.h" |
| #include "net/base/sdch_filter.h" |
| #include "net/url_request/url_request_http_job.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace net { |
| |
| //------------------------------------------------------------------------------ |
| // Provide sample data and compression results with a sample VCDIFF dictionary. |
| // Note an SDCH dictionary has extra meta-data before the VCDIFF dictionary. |
| static const char kTestVcdiffDictionary[] = "DictionaryFor" |
| "SdchCompression1SdchCompression2SdchCompression3SdchCompression\n"; |
| // Pre-compression test data. Note that we pad with a lot of highly gzip |
| // compressible content to help to exercise the chaining pipeline. That is why |
| // there are a PILE of zeros at the start and end. |
| // This will ensure that gzip compressed data can be fed to the chain in one |
| // gulp, but (with careful selection of intermediate buffers) that it takes |
| // several sdch buffers worth of data to satisfy the sdch filter. See detailed |
| // CHECK() calls in FilterChaining test for specifics. |
| static const char kTestData[] = "0000000000000000000000000000000000000000000000" |
| "0000000000000000000000000000TestData " |
| "SdchCompression1SdchCompression2SdchCompression3SdchCompression" |
| "00000000000000000000000000000000000000000000000000000000000000000000000000" |
| "000000000000000000000000000000000000000\n"; |
| |
| // Note SDCH compressed data will include a reference to the SDCH dictionary. |
| static const char kSdchCompressedTestData[] = |
| "\326\303\304\0\0\001M\0\201S\202\004\0\201E\006\001" |
| "00000000000000000000000000000000000000000000000000000000000000000000000000" |
| "TestData 00000000000000000000000000000000000000000000000000000000000000000" |
| "000000000000000000000000000000000000000000000000\n\001S\023\077\001r\r"; |
| |
| //------------------------------------------------------------------------------ |
| |
| class SdchFilterTest : public testing::Test { |
| protected: |
| SdchFilterTest() |
| : test_vcdiff_dictionary_(kTestVcdiffDictionary, |
| sizeof(kTestVcdiffDictionary) - 1), |
| vcdiff_compressed_data_(kSdchCompressedTestData, |
| sizeof(kSdchCompressedTestData) - 1), |
| expanded_(kTestData, sizeof(kTestData) - 1), |
| sdch_manager_(new SdchManager) { |
| } |
| |
| std::string NewSdchCompressedData(const std::string dictionary); |
| |
| const std::string test_vcdiff_dictionary_; |
| const std::string vcdiff_compressed_data_; |
| const std::string expanded_; // Desired final, decompressed data. |
| |
| scoped_ptr<SdchManager> sdch_manager_; // A singleton database. |
| }; |
| |
| std::string SdchFilterTest::NewSdchCompressedData( |
| const std::string dictionary) { |
| std::string client_hash; |
| std::string server_hash; |
| SdchManager::GenerateHash(dictionary, &client_hash, &server_hash); |
| |
| // Build compressed data that refers to our dictionary. |
| std::string compressed(server_hash); |
| compressed.append("\0", 1); |
| compressed.append(vcdiff_compressed_data_); |
| return compressed; |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| |
| TEST_F(SdchFilterTest, Hashing) { |
| std::string client_hash, server_hash; |
| std::string dictionary("test contents"); |
| SdchManager::GenerateHash(dictionary, &client_hash, &server_hash); |
| |
| EXPECT_EQ(client_hash, "lMQBjS3P"); |
| EXPECT_EQ(server_hash, "MyciMVll"); |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| // Provide a generic helper function for trying to filter data. |
| // This function repeatedly calls the filter to process data, until the entire |
| // source is consumed. The return value from the filter is appended to output. |
| // This allows us to vary input and output block sizes in order to test for edge |
| // effects (boundary effects?) during the filtering process. |
| // This function provides data to the filter in blocks of no-more-than the |
| // specified input_block_length. It allows the filter to fill no more than |
| // output_buffer_length in any one call to proccess (a.k.a., Read) data, and |
| // concatenates all these little output blocks into the singular output string. |
| static bool FilterTestData(const std::string& source, |
| size_t input_block_length, |
| const size_t output_buffer_length, |
| Filter* filter, std::string* output) { |
| CHECK_GT(input_block_length, 0u); |
| Filter::FilterStatus status(Filter::FILTER_NEED_MORE_DATA); |
| size_t source_index = 0; |
| scoped_array<char> output_buffer(new char[output_buffer_length]); |
| size_t input_amount = std::min(input_block_length, |
| static_cast<size_t>(filter->stream_buffer_size())); |
| |
| do { |
| int copy_amount = std::min(input_amount, source.size() - source_index); |
| if (copy_amount > 0 && status == Filter::FILTER_NEED_MORE_DATA) { |
| memcpy(filter->stream_buffer()->data(), source.data() + source_index, |
| copy_amount); |
| filter->FlushStreamBuffer(copy_amount); |
| source_index += copy_amount; |
| } |
| int buffer_length = output_buffer_length; |
| status = filter->ReadData(output_buffer.get(), &buffer_length); |
| output->append(output_buffer.get(), buffer_length); |
| if (status == Filter::FILTER_ERROR) |
| return false; |
| // Callers assume that FILTER_OK with no output buffer means FILTER_DONE. |
| if (Filter::FILTER_OK == status && 0 == buffer_length) |
| return true; |
| if (copy_amount == 0 && buffer_length == 0) |
| return true; |
| } while (1); |
| } |
| //------------------------------------------------------------------------------ |
| static std::string NewSdchDictionary(const std::string& domain) { |
| std::string dictionary; |
| if (!domain.empty()) { |
| dictionary.append("Domain: "); |
| dictionary.append(domain); |
| dictionary.append("\n"); |
| } |
| dictionary.append("\n"); |
| dictionary.append(kTestVcdiffDictionary, sizeof(kTestVcdiffDictionary) - 1); |
| return dictionary; |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| TEST_F(SdchFilterTest, EmptyInputOk) { |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| char output_buffer[20]; |
| MockFilterContext filter_context; |
| std::string url_string("http://ignore.com"); |
| filter_context.SetURL(GURL(url_string)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| |
| // With no input data, try to read output. |
| int output_bytes_or_buffer_size = sizeof(output_buffer); |
| Filter::FilterStatus status = filter->ReadData(output_buffer, |
| &output_bytes_or_buffer_size); |
| |
| EXPECT_EQ(0, output_bytes_or_buffer_size); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, status); |
| } |
| |
| TEST_F(SdchFilterTest, PassThroughWhenTentative) { |
| std::vector<Filter::FilterType> filter_types; |
| // Selective a tentative filter (which can fall back to pass through). |
| filter_types.push_back(Filter::FILTER_TYPE_GZIP_HELPING_SDCH); |
| char output_buffer[20]; |
| MockFilterContext filter_context; |
| // Response code needs to be 200 to allow a pass through. |
| filter_context.SetResponseCode(200); |
| std::string url_string("http://ignore.com"); |
| filter_context.SetURL(GURL(url_string)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| // Supply enough data to force a pass-through mode.. |
| std::string non_gzip_content("not GZIPed data"); |
| |
| char* input_buffer = filter->stream_buffer()->data(); |
| int input_buffer_size = filter->stream_buffer_size(); |
| |
| EXPECT_LT(static_cast<int>(non_gzip_content.size()), |
| input_buffer_size); |
| memcpy(input_buffer, non_gzip_content.data(), |
| non_gzip_content.size()); |
| filter->FlushStreamBuffer(non_gzip_content.size()); |
| |
| // Try to read output. |
| int output_bytes_or_buffer_size = sizeof(output_buffer); |
| Filter::FilterStatus status = filter->ReadData(output_buffer, |
| &output_bytes_or_buffer_size); |
| |
| EXPECT_EQ(non_gzip_content.size(), |
| static_cast<size_t>(output_bytes_or_buffer_size)); |
| ASSERT_GT(sizeof(output_buffer), |
| static_cast<size_t>(output_bytes_or_buffer_size)); |
| output_buffer[output_bytes_or_buffer_size] = '\0'; |
| EXPECT_TRUE(non_gzip_content == output_buffer); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, status); |
| } |
| |
| TEST_F(SdchFilterTest, RefreshBadReturnCode) { |
| std::vector<Filter::FilterType> filter_types; |
| // Selective a tentative filter (which can fall back to pass through). |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH_POSSIBLE); |
| char output_buffer[20]; |
| MockFilterContext filter_context; |
| // Response code needs to be 200 to allow a pass through. |
| filter_context.SetResponseCode(403); |
| // Meta refresh will only appear for html content |
| filter_context.SetMimeType("text/html"); |
| std::string url_string("http://ignore.com"); |
| filter_context.SetURL(GURL(url_string)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| // Supply enough data to force a pass-through mode, which means we have |
| // provided more than 9 characters that can't be a dictionary hash. |
| std::string non_sdch_content("This is not SDCH"); |
| |
| char* input_buffer = filter->stream_buffer()->data(); |
| int input_buffer_size = filter->stream_buffer_size(); |
| |
| EXPECT_LT(static_cast<int>(non_sdch_content.size()), |
| input_buffer_size); |
| memcpy(input_buffer, non_sdch_content.data(), |
| non_sdch_content.size()); |
| filter->FlushStreamBuffer(non_sdch_content.size()); |
| |
| // Try to read output. |
| int output_bytes_or_buffer_size = sizeof(output_buffer); |
| Filter::FilterStatus status = filter->ReadData(output_buffer, |
| &output_bytes_or_buffer_size); |
| |
| // We should have read a long and complicated meta-refresh request. |
| EXPECT_TRUE(sizeof(output_buffer) == output_bytes_or_buffer_size); |
| // Check at least the prefix of the return. |
| EXPECT_EQ(0, strncmp(output_buffer, |
| "<head><META HTTP-EQUIV=\"Refresh\" CONTENT=\"0\"></head>", |
| sizeof(output_buffer))); |
| EXPECT_EQ(Filter::FILTER_OK, status); |
| } |
| |
| TEST_F(SdchFilterTest, ErrorOnBadReturnCode) { |
| std::vector<Filter::FilterType> filter_types; |
| // Selective a tentative filter (which can fall back to pass through). |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH_POSSIBLE); |
| char output_buffer[20]; |
| MockFilterContext filter_context; |
| // Response code needs to be 200 to allow a pass through. |
| filter_context.SetResponseCode(403); |
| // Meta refresh will only appear for html content, so set to something else |
| // to induce an error (we can't meta refresh). |
| filter_context.SetMimeType("anything"); |
| std::string url_string("http://ignore.com"); |
| filter_context.SetURL(GURL(url_string)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| // Supply enough data to force a pass-through mode, which means we have |
| // provided more than 9 characters that can't be a dictionary hash. |
| std::string non_sdch_content("This is not SDCH"); |
| |
| char* input_buffer = filter->stream_buffer()->data(); |
| int input_buffer_size = filter->stream_buffer_size(); |
| |
| EXPECT_LT(static_cast<int>(non_sdch_content.size()), |
| input_buffer_size); |
| memcpy(input_buffer, non_sdch_content.data(), |
| non_sdch_content.size()); |
| filter->FlushStreamBuffer(non_sdch_content.size()); |
| |
| // Try to read output. |
| int output_bytes_or_buffer_size = sizeof(output_buffer); |
| Filter::FilterStatus status = filter->ReadData(output_buffer, |
| &output_bytes_or_buffer_size); |
| |
| EXPECT_EQ(0, output_bytes_or_buffer_size); |
| EXPECT_EQ(Filter::FILTER_ERROR, status); |
| } |
| |
| TEST_F(SdchFilterTest, ErrorOnBadReturnCodeWithHtml) { |
| std::vector<Filter::FilterType> filter_types; |
| // Selective a tentative filter (which can fall back to pass through). |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH_POSSIBLE); |
| char output_buffer[20]; |
| MockFilterContext filter_context; |
| // Response code needs to be 200 to allow a pass through. |
| filter_context.SetResponseCode(403); |
| // Meta refresh will only appear for html content |
| filter_context.SetMimeType("text/html"); |
| std::string url_string("http://ignore.com"); |
| filter_context.SetURL(GURL(url_string)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| // Supply enough data to force a pass-through mode, which means we have |
| // provided more than 9 characters that can't be a dictionary hash. |
| std::string non_sdch_content("This is not SDCH"); |
| |
| char* input_buffer = filter->stream_buffer()->data(); |
| int input_buffer_size = filter->stream_buffer_size(); |
| |
| EXPECT_LT(static_cast<int>(non_sdch_content.size()), |
| input_buffer_size); |
| memcpy(input_buffer, non_sdch_content.data(), |
| non_sdch_content.size()); |
| filter->FlushStreamBuffer(non_sdch_content.size()); |
| |
| // Try to read output. |
| int output_bytes_or_buffer_size = sizeof(output_buffer); |
| Filter::FilterStatus status = filter->ReadData(output_buffer, |
| &output_bytes_or_buffer_size); |
| |
| // We should have read a long and complicated meta-refresh request. |
| EXPECT_EQ(sizeof(output_buffer), |
| static_cast<size_t>(output_bytes_or_buffer_size)); |
| // Check at least the prefix of the return. |
| EXPECT_EQ(0, strncmp(output_buffer, |
| "<head><META HTTP-EQUIV=\"Refresh\" CONTENT=\"0\"></head>", |
| sizeof(output_buffer))); |
| EXPECT_EQ(Filter::FILTER_OK, status); |
| } |
| |
| TEST_F(SdchFilterTest, BasicBadDictionary) { |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| char output_buffer[20]; |
| MockFilterContext filter_context; |
| std::string url_string("http://ignore.com"); |
| filter_context.SetURL(GURL(url_string)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| // Supply bogus data (which doesn't yet specify a full dictionary hash). |
| // Dictionary hash is 8 characters followed by a null. |
| std::string dictionary_hash_prefix("123"); |
| |
| char* input_buffer = filter->stream_buffer()->data(); |
| int input_buffer_size = filter->stream_buffer_size(); |
| |
| EXPECT_LT(static_cast<int>(dictionary_hash_prefix.size()), |
| input_buffer_size); |
| memcpy(input_buffer, dictionary_hash_prefix.data(), |
| dictionary_hash_prefix.size()); |
| filter->FlushStreamBuffer(dictionary_hash_prefix.size()); |
| |
| // With less than a dictionary specifier, try to read output. |
| int output_bytes_or_buffer_size = sizeof(output_buffer); |
| Filter::FilterStatus status = filter->ReadData(output_buffer, |
| &output_bytes_or_buffer_size); |
| |
| EXPECT_EQ(0, output_bytes_or_buffer_size); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, status); |
| |
| // Provide enough data to complete *a* hash, but it is bogus, and not in our |
| // list of dictionaries, so the filter should error out immediately. |
| std::string dictionary_hash_postfix("4abcd\0", 6); |
| |
| CHECK_LT(dictionary_hash_postfix.size(), |
| static_cast<size_t>(input_buffer_size)); |
| memcpy(input_buffer, dictionary_hash_postfix.data(), |
| dictionary_hash_postfix.size()); |
| filter->FlushStreamBuffer(dictionary_hash_postfix.size()); |
| |
| // With a non-existant dictionary specifier, try to read output. |
| output_bytes_or_buffer_size = sizeof(output_buffer); |
| status = filter->ReadData(output_buffer, &output_bytes_or_buffer_size); |
| |
| EXPECT_EQ(0, output_bytes_or_buffer_size); |
| EXPECT_EQ(Filter::FILTER_ERROR, status); |
| |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| SdchManager::ClearBlacklistings(); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| } |
| |
| TEST_F(SdchFilterTest, DictionaryAddOnce) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| // Check we can't add it twice. |
| EXPECT_FALSE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| const std::string kSampleDomain2 = "sdchtest2.com"; |
| |
| // Construct a second SDCH dictionary from a VCDIFF dictionary. |
| std::string dictionary2(NewSdchDictionary(kSampleDomain2)); |
| |
| std::string url_string2 = "http://" + kSampleDomain2; |
| GURL url2(url_string2); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary2, url2)); |
| } |
| |
| TEST_F(SdchFilterTest, BasicDictionary) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(url); |
| |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Decode with really small buffers (size 1) to check for edge effects. |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 1; |
| output_block_size = 1; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| } |
| |
| TEST_F(SdchFilterTest, NoDecodeHttps) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL("https://" + kSampleDomain)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| const size_t feed_block_size(100); |
| const size_t output_block_size(100); |
| std::string output; |
| |
| EXPECT_FALSE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| } |
| |
| // Current failsafe TODO/hack refuses to decode any content that doesn't use |
| // http as the scheme (see use of DICTIONARY_SELECTED_FOR_NON_HTTP). |
| // The following tests this blockage. Note that blacklisting results, so we |
| // we need separate tests for each of these. |
| TEST_F(SdchFilterTest, NoDecodeFtp) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL("ftp://" + kSampleDomain)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| const size_t feed_block_size(100); |
| const size_t output_block_size(100); |
| std::string output; |
| |
| EXPECT_FALSE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| } |
| |
| TEST_F(SdchFilterTest, NoDecodeFileColon) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL("file://" + kSampleDomain)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| const size_t feed_block_size(100); |
| const size_t output_block_size(100); |
| std::string output; |
| |
| EXPECT_FALSE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| } |
| |
| TEST_F(SdchFilterTest, NoDecodeAboutColon) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL("about://" + kSampleDomain)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| const size_t feed_block_size(100); |
| const size_t output_block_size(100); |
| std::string output; |
| |
| EXPECT_FALSE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| } |
| |
| TEST_F(SdchFilterTest, NoDecodeJavaScript) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL("javascript://" + kSampleDomain)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| const size_t feed_block_size(100); |
| const size_t output_block_size(100); |
| std::string output; |
| |
| EXPECT_FALSE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| } |
| |
| TEST_F(SdchFilterTest, CanStillDecodeHttp) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL("http://" + kSampleDomain)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| const size_t feed_block_size(100); |
| const size_t output_block_size(100); |
| std::string output; |
| |
| EXPECT_TRUE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| } |
| |
| TEST_F(SdchFilterTest, CrossDomainDictionaryUse) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string compressed(NewSdchCompressedData(dictionary)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| // Decode with content arriving from the "wrong" domain. |
| // This tests SdchManager::CanSet(). |
| MockFilterContext filter_context; |
| GURL wrong_domain_url("http://www.wrongdomain.com"); |
| filter_context.SetURL(wrong_domain_url); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_FALSE(FilterTestData(compressed, feed_block_size, output_block_size, |
| filter.get(), &output)); |
| EXPECT_EQ(output.size(), 0u); // No output written. |
| |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(wrong_domain_url)); |
| SdchManager::ClearBlacklistings(); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(wrong_domain_url)); |
| } |
| |
| TEST_F(SdchFilterTest, DictionaryPathValidation) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| // Create a dictionary with a path restriction, by prefixing dictionary. |
| const std::string path("/special_path/bin"); |
| std::string dictionary_with_path("Path: " + path + "\n"); |
| dictionary_with_path.append(dictionary); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary_with_path, url)); |
| |
| std::string compressed_for_path(NewSdchCompressedData(dictionary_with_path)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| // Test decode the path data, arriving from a valid path. |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL(url_string + path)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| |
| EXPECT_TRUE(FilterTestData(compressed_for_path, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Test decode the path data, arriving from a invalid path. |
| filter_context.SetURL(GURL(url_string)); |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 100; |
| output_block_size = 100; |
| output.clear(); |
| EXPECT_FALSE(FilterTestData(compressed_for_path, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output.size(), 0u); // No output written. |
| |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| SdchManager::ClearBlacklistings(); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| } |
| |
| TEST_F(SdchFilterTest, DictionaryPortValidation) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| |
| // Create a dictionary with a port restriction, by prefixing old dictionary. |
| const std::string port("502"); |
| std::string dictionary_with_port("Port: " + port + "\n"); |
| dictionary_with_port.append("Port: 80\n"); // Add default port. |
| dictionary_with_port.append(dictionary); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary_with_port, |
| GURL(url_string + ":" + port))); |
| |
| std::string compressed_for_port(NewSdchCompressedData(dictionary_with_port)); |
| |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| // Test decode the port data, arriving from a valid port. |
| MockFilterContext filter_context; |
| filter_context.SetURL(GURL(url_string + ":" + port)); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(compressed_for_port, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Test decode the port data, arriving from a valid (default) port. |
| filter_context.SetURL(GURL(url_string)); // Default port. |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 100; |
| output_block_size = 100; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(compressed_for_port, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Test decode the port data, arriving from a invalid port. |
| filter_context.SetURL(GURL(url_string + ":" + port + "1")); |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 100; |
| output_block_size = 100; |
| output.clear(); |
| EXPECT_FALSE(FilterTestData(compressed_for_port, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output.size(), 0u); // No output written. |
| |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| SdchManager::ClearBlacklistings(); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(GURL(url_string))); |
| } |
| |
| //------------------------------------------------------------------------------ |
| // Helper function to perform gzip compression of data. |
| |
| static std::string gzip_compress(const std::string &input) { |
| z_stream zlib_stream; |
| memset(&zlib_stream, 0, sizeof(zlib_stream)); |
| int code; |
| |
| // Initialize zlib |
| code = deflateInit2(&zlib_stream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, |
| -MAX_WBITS, |
| 8, // DEF_MEM_LEVEL |
| Z_DEFAULT_STRATEGY); |
| |
| CHECK_EQ(Z_OK, code); |
| |
| // Fill in zlib control block |
| zlib_stream.next_in = bit_cast<Bytef*>(input.data()); |
| zlib_stream.avail_in = input.size(); |
| |
| // Assume we can compress into similar buffer (add 100 bytes to be sure). |
| size_t gzip_compressed_length = zlib_stream.avail_in + 100; |
| scoped_array<char> gzip_compressed(new char[gzip_compressed_length]); |
| zlib_stream.next_out = bit_cast<Bytef*>(gzip_compressed.get()); |
| zlib_stream.avail_out = gzip_compressed_length; |
| |
| // The GZIP header (see RFC 1952): |
| // +---+---+---+---+---+---+---+---+---+---+ |
| // |ID1|ID2|CM |FLG| MTIME |XFL|OS | |
| // +---+---+---+---+---+---+---+---+---+---+ |
| // ID1 \037 |
| // ID2 \213 |
| // CM \010 (compression method == DEFLATE) |
| // FLG \000 (special flags that we do not support) |
| // MTIME Unix format modification time (0 means not available) |
| // XFL 2-4? DEFLATE flags |
| // OS ???? Operating system indicator (255 means unknown) |
| // |
| // Header value we generate: |
| const char kGZipHeader[] = { '\037', '\213', '\010', '\000', '\000', |
| '\000', '\000', '\000', '\002', '\377' }; |
| CHECK_GT(zlib_stream.avail_out, sizeof(kGZipHeader)); |
| memcpy(zlib_stream.next_out, kGZipHeader, sizeof(kGZipHeader)); |
| zlib_stream.next_out += sizeof(kGZipHeader); |
| zlib_stream.avail_out -= sizeof(kGZipHeader); |
| |
| // Do deflate |
| code = deflate(&zlib_stream, Z_FINISH); |
| gzip_compressed_length -= zlib_stream.avail_out; |
| std::string compressed(gzip_compressed.get(), gzip_compressed_length); |
| deflateEnd(&zlib_stream); |
| return compressed; |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| class SdchFilterChainingTest { |
| public: |
| static Filter* Factory(const std::vector<Filter::FilterType>& types, |
| const FilterContext& context, int size) { |
| return Filter::FactoryForTests(types, context, size); |
| } |
| }; |
| |
| // Test that filters can be cascaded (chained) so that the output of one filter |
| // is processed by the next one. This is most critical for SDCH, which is |
| // routinely followed by gzip (during encoding). The filter we'll test for will |
| // do the gzip decoding first, and then decode the SDCH content. |
| TEST_F(SdchFilterTest, FilterChaining) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string sdch_compressed(NewSdchCompressedData(dictionary)); |
| |
| // Use Gzip to compress the sdch sdch_compressed data. |
| std::string gzip_compressed_sdch = gzip_compress(sdch_compressed); |
| |
| // Construct a chained filter. |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| filter_types.push_back(Filter::FILTER_TYPE_GZIP); |
| |
| // First try with a large buffer (larger than test input, or compressed data). |
| const size_t kLargeInputBufferSize(1000); // Used internally in filters. |
| CHECK_GT(kLargeInputBufferSize, gzip_compressed_sdch.size()); |
| CHECK_GT(kLargeInputBufferSize, sdch_compressed.size()); |
| CHECK_GT(kLargeInputBufferSize, expanded_.size()); |
| MockFilterContext filter_context; |
| filter_context.SetURL(url); |
| scoped_ptr<Filter> filter( |
| SdchFilterChainingTest::Factory(filter_types, filter_context, |
| kLargeInputBufferSize)); |
| EXPECT_EQ(static_cast<int>(kLargeInputBufferSize), |
| filter->stream_buffer_size()); |
| |
| // Verify that chained filter is waiting for data. |
| char tiny_output_buffer[10]; |
| int tiny_output_size = sizeof(tiny_output_buffer); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, |
| filter->ReadData(tiny_output_buffer, &tiny_output_size)); |
| |
| // Make chain process all data. |
| size_t feed_block_size = kLargeInputBufferSize; |
| size_t output_block_size = kLargeInputBufferSize; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Next try with a mid-sized internal buffer size. |
| const size_t kMidSizedInputBufferSize(100); |
| // Buffer should be big enough to swallow whole gzip content. |
| CHECK_GT(kMidSizedInputBufferSize, gzip_compressed_sdch.size()); |
| // Buffer should be small enough that entire SDCH content can't fit. |
| // We'll go even further, and force the chain to flush the buffer between the |
| // two filters more than once (that is why we multiply by 2). |
| CHECK_LT(kMidSizedInputBufferSize * 2, sdch_compressed.size()); |
| filter_context.SetURL(url); |
| filter.reset( |
| SdchFilterChainingTest::Factory(filter_types, filter_context, |
| kMidSizedInputBufferSize)); |
| EXPECT_EQ(static_cast<int>(kMidSizedInputBufferSize), |
| filter->stream_buffer_size()); |
| |
| feed_block_size = kMidSizedInputBufferSize; |
| output_block_size = kMidSizedInputBufferSize; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Next try with a tiny input and output buffer to cover edge effects. |
| filter.reset(SdchFilterChainingTest::Factory(filter_types, filter_context, |
| kLargeInputBufferSize)); |
| EXPECT_EQ(static_cast<int>(kLargeInputBufferSize), |
| filter->stream_buffer_size()); |
| |
| feed_block_size = 1; |
| output_block_size = 1; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| } |
| |
| TEST_F(SdchFilterTest, DefaultGzipIfSdch) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string sdch_compressed(NewSdchCompressedData(dictionary)); |
| |
| // Use Gzip to compress the sdch sdch_compressed data. |
| std::string gzip_compressed_sdch = gzip_compress(sdch_compressed); |
| |
| // Only claim to have sdch content, but really use the gzipped sdch content. |
| // System should automatically add the missing (optional) gzip. |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_SDCH); |
| |
| MockFilterContext filter_context; |
| filter_context.SetMimeType("anything/mime"); |
| filter_context.SetSdchResponse(true); |
| Filter::FixupEncodingTypes(filter_context, &filter_types); |
| ASSERT_EQ(filter_types.size(), 2u); |
| EXPECT_EQ(filter_types[0], Filter::FILTER_TYPE_SDCH); |
| EXPECT_EQ(filter_types[1], Filter::FILTER_TYPE_GZIP_HELPING_SDCH); |
| |
| // First try with a large buffer (larger than test input, or compressed data). |
| filter_context.SetURL(url); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| |
| // Verify that chained filter is waiting for data. |
| char tiny_output_buffer[10]; |
| int tiny_output_size = sizeof(tiny_output_buffer); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, |
| filter->ReadData(tiny_output_buffer, &tiny_output_size)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Next try with a tiny buffer to cover edge effects. |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 1; |
| output_block_size = 1; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| } |
| |
| TEST_F(SdchFilterTest, AcceptGzipSdchIfGzip) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string sdch_compressed(NewSdchCompressedData(dictionary)); |
| |
| // Use Gzip to compress the sdch sdch_compressed data. |
| std::string gzip_compressed_sdch = gzip_compress(sdch_compressed); |
| |
| // Some proxies strip the content encoding statement down to a mere gzip, but |
| // pass through the original content (with full sdch,gzip encoding). |
| // Only claim to have gzip content, but really use the gzipped sdch content. |
| // System should automatically add the missing (optional) sdch. |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_GZIP); |
| |
| MockFilterContext filter_context; |
| filter_context.SetMimeType("anything/mime"); |
| filter_context.SetSdchResponse(true); |
| Filter::FixupEncodingTypes(filter_context, &filter_types); |
| ASSERT_EQ(filter_types.size(), 3u); |
| EXPECT_EQ(filter_types[0], Filter::FILTER_TYPE_SDCH_POSSIBLE); |
| EXPECT_EQ(filter_types[1], Filter::FILTER_TYPE_GZIP_HELPING_SDCH); |
| EXPECT_EQ(filter_types[2], Filter::FILTER_TYPE_GZIP); |
| |
| // First try with a large buffer (larger than test input, or compressed data). |
| filter_context.SetURL(url); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| |
| // Verify that chained filter is waiting for data. |
| char tiny_output_buffer[10]; |
| int tiny_output_size = sizeof(tiny_output_buffer); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, |
| filter->ReadData(tiny_output_buffer, &tiny_output_size)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Next try with a tiny buffer to cover edge effects. |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 1; |
| output_block_size = 1; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| } |
| |
| TEST_F(SdchFilterTest, DefaultSdchGzipIfEmpty) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string sdch_compressed(NewSdchCompressedData(dictionary)); |
| |
| // Use Gzip to compress the sdch sdch_compressed data. |
| std::string gzip_compressed_sdch = gzip_compress(sdch_compressed); |
| |
| // Only claim to have non-encoded content, but really use the gzipped sdch |
| // content. |
| // System should automatically add the missing (optional) sdch,gzip. |
| std::vector<Filter::FilterType> filter_types; |
| |
| MockFilterContext filter_context; |
| filter_context.SetMimeType("anything/mime"); |
| filter_context.SetSdchResponse(true); |
| Filter::FixupEncodingTypes(filter_context, &filter_types); |
| ASSERT_EQ(filter_types.size(), 2u); |
| EXPECT_EQ(filter_types[0], Filter::FILTER_TYPE_SDCH_POSSIBLE); |
| EXPECT_EQ(filter_types[1], Filter::FILTER_TYPE_GZIP_HELPING_SDCH); |
| |
| // First try with a large buffer (larger than test input, or compressed data). |
| filter_context.SetURL(url); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| |
| // Verify that chained filter is waiting for data. |
| char tiny_output_buffer[10]; |
| int tiny_output_size = sizeof(tiny_output_buffer); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, |
| filter->ReadData(tiny_output_buffer, &tiny_output_size)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Next try with a tiny buffer to cover edge effects. |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 1; |
| output_block_size = 1; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| } |
| |
| TEST_F(SdchFilterTest, AcceptGzipGzipSdchIfGzip) { |
| // Construct a valid SDCH dictionary from a VCDIFF dictionary. |
| const std::string kSampleDomain = "sdchtest.com"; |
| std::string dictionary(NewSdchDictionary(kSampleDomain)); |
| |
| std::string url_string = "http://" + kSampleDomain; |
| |
| GURL url(url_string); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary, url)); |
| |
| std::string sdch_compressed(NewSdchCompressedData(dictionary)); |
| |
| // Vodaphone (UK) Mobile Broadband provides double gzipped sdch with a content |
| // encoding of merely gzip (apparently, only listing the extra level of |
| // wrapper compression they added, but discarding the actual content encoding. |
| // Use Gzip to double compress the sdch sdch_compressed data. |
| std::string double_gzip_compressed_sdch = gzip_compress(gzip_compress( |
| sdch_compressed)); |
| |
| // Only claim to have gzip content, but really use the double gzipped sdch |
| // content. |
| // System should automatically add the missing (optional) sdch, gzip decoders. |
| std::vector<Filter::FilterType> filter_types; |
| filter_types.push_back(Filter::FILTER_TYPE_GZIP); |
| |
| MockFilterContext filter_context; |
| filter_context.SetMimeType("anything/mime"); |
| filter_context.SetSdchResponse(true); |
| Filter::FixupEncodingTypes(filter_context, &filter_types); |
| ASSERT_EQ(filter_types.size(), 3u); |
| EXPECT_EQ(filter_types[0], Filter::FILTER_TYPE_SDCH_POSSIBLE); |
| EXPECT_EQ(filter_types[1], Filter::FILTER_TYPE_GZIP_HELPING_SDCH); |
| EXPECT_EQ(filter_types[2], Filter::FILTER_TYPE_GZIP); |
| |
| // First try with a large buffer (larger than test input, or compressed data). |
| filter_context.SetURL(url); |
| scoped_ptr<Filter> filter(Filter::Factory(filter_types, filter_context)); |
| |
| |
| // Verify that chained filter is waiting for data. |
| char tiny_output_buffer[10]; |
| int tiny_output_size = sizeof(tiny_output_buffer); |
| EXPECT_EQ(Filter::FILTER_NEED_MORE_DATA, |
| filter->ReadData(tiny_output_buffer, &tiny_output_size)); |
| |
| size_t feed_block_size = 100; |
| size_t output_block_size = 100; |
| std::string output; |
| EXPECT_TRUE(FilterTestData(double_gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| |
| // Next try with a tiny buffer to cover edge effects. |
| filter.reset(Filter::Factory(filter_types, filter_context)); |
| |
| feed_block_size = 1; |
| output_block_size = 1; |
| output.clear(); |
| EXPECT_TRUE(FilterTestData(double_gzip_compressed_sdch, feed_block_size, |
| output_block_size, filter.get(), &output)); |
| EXPECT_EQ(output, expanded_); |
| } |
| |
| TEST_F(SdchFilterTest, DomainSupported) { |
| GURL google_url("http://www.google.com"); |
| |
| net::SdchManager::EnableSdchSupport(false); |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(google_url)); |
| net::SdchManager::EnableSdchSupport(true); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(google_url)); |
| } |
| |
| TEST_F(SdchFilterTest, DomainBlacklisting) { |
| GURL test_url("http://www.test.com"); |
| GURL google_url("http://www.google.com"); |
| |
| SdchManager::BlacklistDomain(test_url); |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(test_url)); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(google_url)); |
| |
| SdchManager::BlacklistDomain(google_url); |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(google_url)); |
| } |
| |
| TEST_F(SdchFilterTest, DomainBlacklistingCaseSensitivity) { |
| GURL test_url("http://www.TesT.com"); |
| GURL test2_url("http://www.tEst.com"); |
| |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(test_url)); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(test2_url)); |
| SdchManager::BlacklistDomain(test_url); |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(test2_url)); |
| } |
| |
| TEST_F(SdchFilterTest, BlacklistingReset) { |
| GURL gurl("http://mytest.DoMain.com"); |
| std::string domain(gurl.host()); |
| |
| SdchManager::ClearBlacklistings(); |
| EXPECT_EQ(SdchManager::BlackListDomainCount(domain), 0); |
| EXPECT_EQ(SdchManager::BlacklistDomainExponential(domain), 0); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(gurl)); |
| } |
| |
| TEST_F(SdchFilterTest, BlacklistingSingleBlacklist) { |
| GURL gurl("http://mytest.DoMain.com"); |
| std::string domain(gurl.host()); |
| SdchManager::ClearBlacklistings(); |
| |
| SdchManager::Global()->BlacklistDomain(gurl); |
| EXPECT_EQ(SdchManager::BlackListDomainCount(domain), 1); |
| EXPECT_EQ(SdchManager::BlacklistDomainExponential(domain), 1); |
| |
| // Check that any domain lookup reduces the blacklist counter. |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(gurl)); |
| EXPECT_EQ(SdchManager::BlackListDomainCount(domain), 0); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(gurl)); |
| } |
| |
| TEST_F(SdchFilterTest, BlacklistingExponential) { |
| GURL gurl("http://mytest.DoMain.com"); |
| std::string domain(gurl.host()); |
| SdchManager::ClearBlacklistings(); |
| |
| int exponential = 1; |
| for (int i = 1; i < 100; ++i) { |
| SdchManager::Global()->BlacklistDomain(gurl); |
| EXPECT_EQ(SdchManager::BlacklistDomainExponential(domain), exponential); |
| |
| EXPECT_EQ(SdchManager::BlackListDomainCount(domain), exponential); |
| EXPECT_FALSE(SdchManager::Global()->IsInSupportedDomain(gurl)); |
| EXPECT_EQ(SdchManager::BlackListDomainCount(domain), exponential - 1); |
| |
| // Simulate a large number of domain checks (which eventually remove the |
| // blacklisting). |
| SdchManager::ClearDomainBlacklisting(domain); |
| EXPECT_EQ(SdchManager::BlackListDomainCount(domain), 0); |
| EXPECT_TRUE(SdchManager::Global()->IsInSupportedDomain(gurl)); |
| |
| // Predict what exponential backoff will be. |
| exponential = 1 + 2 * exponential; |
| if (exponential < 0) |
| exponential = INT_MAX; // We don't wrap. |
| } |
| } |
| |
| TEST_F(SdchFilterTest, CanSetExactMatchDictionary) { |
| std::string dictionary_domain("x.y.z.google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| // Perfect match should work. |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://" + dictionary_domain))); |
| } |
| |
| TEST_F(SdchFilterTest, FailToSetDomainMismatchDictionary) { |
| std::string dictionary_domain("x.y.z.google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| // Fail the "domain match" requirement. |
| EXPECT_FALSE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://y.z.google.com"))); |
| } |
| |
| TEST_F(SdchFilterTest, FailToSetDotHostPrefixDomainDictionary) { |
| std::string dictionary_domain("x.y.z.google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| // Fail the HD with D being the domain and H having a dot requirement. |
| EXPECT_FALSE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://w.x.y.z.google.com"))); |
| } |
| |
| TEST_F(SdchFilterTest, FailToSetRepeatPrefixWithDotDictionary) { |
| // Make sure that a prefix that matches the domain postfix won't confuse |
| // the validation checks. |
| std::string dictionary_domain("www.google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| // Fail the HD with D being the domain and H having a dot requirement. |
| EXPECT_FALSE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://www.google.com.www.google.com"))); |
| } |
| |
| TEST_F(SdchFilterTest, CanSetLeadingDotDomainDictionary) { |
| // Make sure that a prefix that matches the domain postfix won't confuse |
| // the validation checks. |
| std::string dictionary_domain(".google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| // Verify that a leading dot in the domain is acceptable, as long as the host |
| // name does not contain any dots preceding the matched domain name. |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://www.google.com"))); |
| } |
| |
| // Make sure the order of the tests is not helping us or confusing things. |
| // See test CanSetExactMatchDictionary above for first try. |
| TEST_F(SdchFilterTest, CanStillSetExactMatchDictionary) { |
| std::string dictionary_domain("x.y.z.google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| // Perfect match should *STILL* work. |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://" + dictionary_domain))); |
| } |
| |
| // Make sure the DOS protection precludes the addition of too many dictionaries. |
| TEST_F(SdchFilterTest, TooManyDictionaries) { |
| std::string dictionary_domain(".google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| size_t count = 0; |
| while (count <= SdchManager::kMaxDictionaryCount + 1) { |
| if (!sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://www.google.com"))) |
| break; |
| |
| dictionary_text += " "; // Create dictionary with different SHA signature. |
| ++count; |
| } |
| EXPECT_EQ(SdchManager::kMaxDictionaryCount, count); |
| } |
| |
| TEST_F(SdchFilterTest, DictionaryNotTooLarge) { |
| std::string dictionary_domain(".google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| dictionary_text.append( |
| SdchManager::kMaxDictionarySize - dictionary_text.size(), ' '); |
| EXPECT_TRUE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://" + dictionary_domain))); |
| } |
| |
| TEST_F(SdchFilterTest, DictionaryTooLarge) { |
| std::string dictionary_domain(".google.com"); |
| std::string dictionary_text(NewSdchDictionary(dictionary_domain)); |
| |
| dictionary_text.append( |
| SdchManager::kMaxDictionarySize + 1 - dictionary_text.size(), ' '); |
| EXPECT_FALSE(sdch_manager_->AddSdchDictionary(dictionary_text, |
| GURL("http://" + dictionary_domain))); |
| } |
| |
| TEST_F(SdchFilterTest, PathMatch) { |
| bool (*PathMatch)(const std::string& path, const std::string& restriction) = |
| SdchManager::Dictionary::PathMatch; |
| // Perfect match is supported. |
| EXPECT_TRUE(PathMatch("/search", "/search")); |
| EXPECT_TRUE(PathMatch("/search/", "/search/")); |
| |
| // Prefix only works if last character of restriction is a slash, or first |
| // character in path after a match is a slash. Validate each case separately. |
| |
| // Rely on the slash in the path (not at the end of the restriction). |
| EXPECT_TRUE(PathMatch("/search/something", "/search")); |
| EXPECT_TRUE(PathMatch("/search/s", "/search")); |
| EXPECT_TRUE(PathMatch("/search/other", "/search")); |
| EXPECT_TRUE(PathMatch("/search/something", "/search")); |
| |
| // Rely on the slash at the end of the restriction. |
| EXPECT_TRUE(PathMatch("/search/something", "/search/")); |
| EXPECT_TRUE(PathMatch("/search/s", "/search/")); |
| EXPECT_TRUE(PathMatch("/search/other", "/search/")); |
| EXPECT_TRUE(PathMatch("/search/something", "/search/")); |
| |
| // Make sure less that sufficient prefix match is false. |
| EXPECT_FALSE(PathMatch("/sear", "/search")); |
| EXPECT_FALSE(PathMatch("/", "/search")); |
| EXPECT_FALSE(PathMatch("", "/search")); |
| |
| // Add examples with several levels of direcories in the restriction. |
| EXPECT_FALSE(PathMatch("/search/something", "search/s")); |
| EXPECT_FALSE(PathMatch("/search/", "/search/s")); |
| |
| // Make sure adding characters to path will also fail. |
| EXPECT_FALSE(PathMatch("/searching", "/search/")); |
| EXPECT_FALSE(PathMatch("/searching", "/search")); |
| |
| // Make sure we're case sensitive. |
| EXPECT_FALSE(PathMatch("/ABC", "/abc")); |
| EXPECT_FALSE(PathMatch("/abc", "/ABC")); |
| } |
| |
| // The following are only applicable while we have a latency test in the code, |
| // and can be removed when that functionality is stripped. |
| TEST_F(SdchFilterTest, LatencyTestControls) { |
| GURL url("http://www.google.com"); |
| GURL url2("http://www.google2.com"); |
| |
| // First make sure we default to false. |
| EXPECT_FALSE(sdch_manager_->AllowLatencyExperiment(url)); |
| EXPECT_FALSE(sdch_manager_->AllowLatencyExperiment(url2)); |
| |
| // That we can set each to true. |
| sdch_manager_->SetAllowLatencyExperiment(url, true); |
| EXPECT_TRUE(sdch_manager_->AllowLatencyExperiment(url)); |
| EXPECT_FALSE(sdch_manager_->AllowLatencyExperiment(url2)); |
| |
| sdch_manager_->SetAllowLatencyExperiment(url2, true); |
| EXPECT_TRUE(sdch_manager_->AllowLatencyExperiment(url)); |
| EXPECT_TRUE(sdch_manager_->AllowLatencyExperiment(url2)); |
| |
| // And can reset them to false. |
| sdch_manager_->SetAllowLatencyExperiment(url, false); |
| EXPECT_FALSE(sdch_manager_->AllowLatencyExperiment(url)); |
| EXPECT_TRUE(sdch_manager_->AllowLatencyExperiment(url2)); |
| |
| sdch_manager_->SetAllowLatencyExperiment(url2, false); |
| EXPECT_FALSE(sdch_manager_->AllowLatencyExperiment(url)); |
| EXPECT_FALSE(sdch_manager_->AllowLatencyExperiment(url2)); |
| } |
| |
| } // namespace net |