1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <math.h> 6 7 #include "base/base64.h" 8 #include "base/file_util.h" 9 #include "base/path_service.h" 10 #include "base/pickle.h" 11 #include "base/strings/string_util.h" 12 #include "base/strings/stringprintf.h" 13 #include "base/strings/utf_string_conversions.h" 14 #include "content/common/page_state_serialization.h" 15 #include "content/public/common/content_paths.h" 16 #include "testing/gtest/include/gtest/gtest.h" 17 18 namespace content { 19 namespace { 20 21 #if defined(OS_WIN) 22 inline bool isnan(double num) { return !!_isnan(num); } 23 #endif 24 25 base::NullableString16 NS16(const char* s) { 26 return s ? base::NullableString16(base::ASCIIToUTF16(s), false) : 27 base::NullableString16(); 28 } 29 30 //----------------------------------------------------------------------------- 31 32 template <typename T> 33 void ExpectEquality(const T& a, const T& b) { 34 EXPECT_EQ(a, b); 35 } 36 37 template <typename T> 38 void ExpectEquality(const std::vector<T>& a, const std::vector<T>& b) { 39 EXPECT_EQ(a.size(), b.size()); 40 for (size_t i = 0; i < std::min(a.size(), b.size()); ++i) 41 ExpectEquality(a[i], b[i]); 42 } 43 44 template <> 45 void ExpectEquality(const ExplodedHttpBodyElement& a, 46 const ExplodedHttpBodyElement& b) { 47 EXPECT_EQ(a.type, b.type); 48 EXPECT_EQ(a.data, b.data); 49 EXPECT_EQ(a.file_path, b.file_path); 50 EXPECT_EQ(a.filesystem_url, b.filesystem_url); 51 EXPECT_EQ(a.file_start, b.file_start); 52 EXPECT_EQ(a.file_length, b.file_length); 53 if (!(isnan(a.file_modification_time) && isnan(b.file_modification_time))) 54 EXPECT_DOUBLE_EQ(a.file_modification_time, b.file_modification_time); 55 EXPECT_EQ(a.blob_uuid, b.blob_uuid); 56 } 57 58 template <> 59 void ExpectEquality(const ExplodedHttpBody& a, const ExplodedHttpBody& b) { 60 EXPECT_EQ(a.http_content_type, b.http_content_type); 61 EXPECT_EQ(a.identifier, b.identifier); 62 EXPECT_EQ(a.contains_passwords, b.contains_passwords); 63 EXPECT_EQ(a.is_null, b.is_null); 64 ExpectEquality(a.elements, b.elements); 65 } 66 67 template <> 68 void ExpectEquality(const ExplodedFrameState& a, const ExplodedFrameState& b) { 69 EXPECT_EQ(a.url_string, b.url_string); 70 EXPECT_EQ(a.referrer, b.referrer); 71 EXPECT_EQ(a.referrer_policy, b.referrer_policy); 72 EXPECT_EQ(a.target, b.target); 73 EXPECT_EQ(a.state_object, b.state_object); 74 ExpectEquality(a.document_state, b.document_state); 75 EXPECT_EQ(a.pinch_viewport_scroll_offset, b.pinch_viewport_scroll_offset); 76 EXPECT_EQ(a.scroll_offset, b.scroll_offset); 77 EXPECT_EQ(a.item_sequence_number, b.item_sequence_number); 78 EXPECT_EQ(a.document_sequence_number, b.document_sequence_number); 79 EXPECT_EQ(a.page_scale_factor, b.page_scale_factor); 80 ExpectEquality(a.http_body, b.http_body); 81 ExpectEquality(a.children, b.children); 82 } 83 84 void ExpectEquality(const ExplodedPageState& a, const ExplodedPageState& b) { 85 ExpectEquality(a.referenced_files, b.referenced_files); 86 ExpectEquality(a.top, b.top); 87 } 88 89 //----------------------------------------------------------------------------- 90 91 class PageStateSerializationTest : public testing::Test { 92 public: 93 void PopulateFrameState(ExplodedFrameState* frame_state) { 94 // Invent some data for the various fields. 95 frame_state->url_string = NS16("http://dev.chromium.org/"); 96 frame_state->referrer = NS16("https://www.google.com/search?q=dev.chromium.org"); 97 frame_state->referrer_policy = blink::WebReferrerPolicyAlways; 98 frame_state->target = NS16("foo"); 99 frame_state->state_object = NS16(NULL); 100 frame_state->document_state.push_back(NS16("1")); 101 frame_state->document_state.push_back(NS16("q")); 102 frame_state->document_state.push_back(NS16("text")); 103 frame_state->document_state.push_back(NS16("dev.chromium.org")); 104 frame_state->pinch_viewport_scroll_offset = gfx::PointF(10, 15); 105 frame_state->scroll_offset = gfx::Point(0, 100); 106 frame_state->item_sequence_number = 1; 107 frame_state->document_sequence_number = 2; 108 frame_state->page_scale_factor = 2.0; 109 } 110 111 void PopulateHttpBody(ExplodedHttpBody* http_body, 112 std::vector<base::NullableString16>* referenced_files) { 113 http_body->is_null = false; 114 http_body->identifier = 12345; 115 http_body->contains_passwords = false; 116 http_body->http_content_type = NS16("text/foo"); 117 118 ExplodedHttpBodyElement e1; 119 e1.type = blink::WebHTTPBody::Element::TypeData; 120 e1.data = "foo"; 121 http_body->elements.push_back(e1); 122 123 ExplodedHttpBodyElement e2; 124 e2.type = blink::WebHTTPBody::Element::TypeFile; 125 e2.file_path = NS16("file.txt"); 126 e2.file_start = 100; 127 e2.file_length = 1024; 128 e2.file_modification_time = 9999.0; 129 http_body->elements.push_back(e2); 130 131 referenced_files->push_back(e2.file_path); 132 } 133 134 void PopulateFrameStateForBackwardsCompatTest( 135 ExplodedFrameState* frame_state, 136 bool is_child) { 137 frame_state->url_string = NS16("http://chromium.org/"); 138 frame_state->referrer = NS16("http://google.com/"); 139 frame_state->referrer_policy = blink::WebReferrerPolicyDefault; 140 if (!is_child) 141 frame_state->target = NS16("target"); 142 frame_state->pinch_viewport_scroll_offset = gfx::PointF(-1, -1); 143 frame_state->scroll_offset = gfx::Point(42, -42); 144 frame_state->item_sequence_number = 123; 145 frame_state->document_sequence_number = 456; 146 frame_state->page_scale_factor = 2.0f; 147 148 frame_state->document_state.push_back( 149 NS16("\n\r?% WebKit serialized form state version 8 \n\r=&")); 150 frame_state->document_state.push_back(NS16("form key")); 151 frame_state->document_state.push_back(NS16("1")); 152 frame_state->document_state.push_back(NS16("foo")); 153 frame_state->document_state.push_back(NS16("file")); 154 frame_state->document_state.push_back(NS16("2")); 155 frame_state->document_state.push_back(NS16("file.txt")); 156 frame_state->document_state.push_back(NS16("displayName")); 157 158 if (!is_child) { 159 frame_state->http_body.http_content_type = NS16("foo/bar"); 160 frame_state->http_body.identifier = 789; 161 frame_state->http_body.is_null = false; 162 163 ExplodedHttpBodyElement e1; 164 e1.type = blink::WebHTTPBody::Element::TypeData; 165 e1.data = "first data block"; 166 frame_state->http_body.elements.push_back(e1); 167 168 ExplodedHttpBodyElement e2; 169 e2.type = blink::WebHTTPBody::Element::TypeFile; 170 e2.file_path = NS16("file.txt"); 171 frame_state->http_body.elements.push_back(e2); 172 173 ExplodedHttpBodyElement e3; 174 e3.type = blink::WebHTTPBody::Element::TypeData; 175 e3.data = "data the second"; 176 frame_state->http_body.elements.push_back(e3); 177 178 ExplodedFrameState child_state; 179 PopulateFrameStateForBackwardsCompatTest(&child_state, true); 180 frame_state->children.push_back(child_state); 181 } 182 } 183 184 void PopulatePageStateForBackwardsCompatTest(ExplodedPageState* page_state) { 185 page_state->referenced_files.push_back(NS16("file.txt")); 186 PopulateFrameStateForBackwardsCompatTest(&page_state->top, false); 187 } 188 189 void TestBackwardsCompat(int version) { 190 const char* suffix = ""; 191 192 #if defined(OS_ANDROID) 193 // Unfortunately, the format of version 11 is different on Android, so we 194 // need to use a special reference file. 195 if (version == 11) 196 suffix = "_android"; 197 #endif 198 199 base::FilePath path; 200 PathService::Get(content::DIR_TEST_DATA, &path); 201 path = path.AppendASCII("page_state").AppendASCII( 202 base::StringPrintf("serialized_v%d%s.dat", version, suffix)); 203 204 std::string file_contents; 205 if (!base::ReadFileToString(path, &file_contents)) { 206 ADD_FAILURE() << "File not found: " << path.value(); 207 return; 208 } 209 210 std::string trimmed_contents; 211 EXPECT_TRUE(base::RemoveChars(file_contents, "\r\n", &trimmed_contents)); 212 213 std::string encoded; 214 EXPECT_TRUE(base::Base64Decode(trimmed_contents, &encoded)); 215 216 ExplodedPageState output; 217 #if defined(OS_ANDROID) 218 // Because version 11 of the file format unfortunately bakes in the device 219 // scale factor on Android, perform this test by assuming a preset device 220 // scale factor, ignoring the device scale factor of the current device. 221 const float kPresetDeviceScaleFactor = 2.0f; 222 EXPECT_TRUE(DecodePageStateWithDeviceScaleFactorForTesting( 223 encoded, 224 kPresetDeviceScaleFactor, 225 &output)); 226 #else 227 EXPECT_TRUE(DecodePageState(encoded, &output)); 228 #endif 229 230 ExplodedPageState expected; 231 PopulatePageStateForBackwardsCompatTest(&expected); 232 233 ExpectEquality(expected, output); 234 } 235 }; 236 237 TEST_F(PageStateSerializationTest, BasicEmpty) { 238 ExplodedPageState input; 239 240 std::string encoded; 241 EXPECT_TRUE(EncodePageState(input, &encoded)); 242 243 ExplodedPageState output; 244 EXPECT_TRUE(DecodePageState(encoded, &output)); 245 246 ExpectEquality(input, output); 247 } 248 249 TEST_F(PageStateSerializationTest, BasicFrame) { 250 ExplodedPageState input; 251 PopulateFrameState(&input.top); 252 253 std::string encoded; 254 EXPECT_TRUE(EncodePageState(input, &encoded)); 255 256 ExplodedPageState output; 257 EXPECT_TRUE(DecodePageState(encoded, &output)); 258 259 ExpectEquality(input, output); 260 } 261 262 TEST_F(PageStateSerializationTest, BasicFramePOST) { 263 ExplodedPageState input; 264 PopulateFrameState(&input.top); 265 PopulateHttpBody(&input.top.http_body, &input.referenced_files); 266 267 std::string encoded; 268 EXPECT_TRUE(EncodePageState(input, &encoded)); 269 270 ExplodedPageState output; 271 EXPECT_TRUE(DecodePageState(encoded, &output)); 272 273 ExpectEquality(input, output); 274 } 275 276 TEST_F(PageStateSerializationTest, BasicFrameSet) { 277 ExplodedPageState input; 278 PopulateFrameState(&input.top); 279 280 // Add some child frames. 281 for (int i = 0; i < 4; ++i) { 282 ExplodedFrameState child_state; 283 PopulateFrameState(&child_state); 284 input.top.children.push_back(child_state); 285 } 286 287 std::string encoded; 288 EXPECT_TRUE(EncodePageState(input, &encoded)); 289 290 ExplodedPageState output; 291 EXPECT_TRUE(DecodePageState(encoded, &output)); 292 293 ExpectEquality(input, output); 294 } 295 296 TEST_F(PageStateSerializationTest, BasicFrameSetPOST) { 297 ExplodedPageState input; 298 PopulateFrameState(&input.top); 299 300 // Add some child frames. 301 for (int i = 0; i < 4; ++i) { 302 ExplodedFrameState child_state; 303 PopulateFrameState(&child_state); 304 305 // Simulate a form POST on a subframe. 306 if (i == 2) 307 PopulateHttpBody(&child_state.http_body, &input.referenced_files); 308 309 input.top.children.push_back(child_state); 310 } 311 312 std::string encoded; 313 EncodePageState(input, &encoded); 314 315 ExplodedPageState output; 316 DecodePageState(encoded, &output); 317 318 ExpectEquality(input, output); 319 } 320 321 TEST_F(PageStateSerializationTest, BadMessagesTest1) { 322 Pickle p; 323 // Version 14 324 p.WriteInt(14); 325 // Empty strings. 326 for (int i = 0; i < 6; ++i) 327 p.WriteInt(-1); 328 // Bad real number. 329 p.WriteInt(-1); 330 331 std::string s(static_cast<const char*>(p.data()), p.size()); 332 333 ExplodedPageState output; 334 EXPECT_FALSE(DecodePageState(s, &output)); 335 } 336 337 TEST_F(PageStateSerializationTest, BadMessagesTest2) { 338 double d = 0; 339 Pickle p; 340 // Version 14 341 p.WriteInt(14); 342 // Empty strings. 343 for (int i = 0; i < 6; ++i) 344 p.WriteInt(-1); 345 // More misc fields. 346 p.WriteData(reinterpret_cast<const char*>(&d), sizeof(d)); 347 p.WriteInt(1); 348 p.WriteInt(1); 349 p.WriteInt(0); 350 p.WriteInt(0); 351 p.WriteInt(-1); 352 p.WriteInt(0); 353 // WebForm 354 p.WriteInt(1); 355 p.WriteInt(blink::WebHTTPBody::Element::TypeData); 356 357 std::string s(static_cast<const char*>(p.data()), p.size()); 358 359 ExplodedPageState output; 360 EXPECT_FALSE(DecodePageState(s, &output)); 361 } 362 363 TEST_F(PageStateSerializationTest, DumpExpectedPageStateForBackwardsCompat) { 364 // Change to #if 1 to enable this code. Use this code to generate data, based 365 // on the current serialization format, for the BackwardsCompat_vXX tests. 366 #if 0 367 ExplodedPageState state; 368 PopulatePageStateForBackwardsCompatTest(&state); 369 370 std::string encoded; 371 EXPECT_TRUE(EncodePageState(state, &encoded)); 372 373 std::string base64; 374 base::Base64Encode(encoded, &base64); 375 376 base::FilePath path; 377 PathService::Get(base::DIR_TEMP, &path); 378 path = path.AppendASCII("expected.dat"); 379 380 FILE* fp = base::OpenFile(path, "wb"); 381 ASSERT_TRUE(fp); 382 383 const size_t kRowSize = 76; 384 for (size_t offset = 0; offset < base64.size(); offset += kRowSize) { 385 size_t length = std::min(base64.size() - offset, kRowSize); 386 std::string segment(&base64[offset], length); 387 segment.push_back('\n'); 388 ASSERT_EQ(1U, fwrite(segment.data(), segment.size(), 1, fp)); 389 } 390 391 fclose(fp); 392 #endif 393 } 394 395 #if !defined(OS_ANDROID) 396 // TODO(darin): Re-enable for Android once this test accounts for systems with 397 // a device scale factor not equal to 2. 398 TEST_F(PageStateSerializationTest, BackwardsCompat_v11) { 399 TestBackwardsCompat(11); 400 } 401 #endif 402 403 TEST_F(PageStateSerializationTest, BackwardsCompat_v12) { 404 TestBackwardsCompat(12); 405 } 406 407 TEST_F(PageStateSerializationTest, BackwardsCompat_v13) { 408 TestBackwardsCompat(13); 409 } 410 411 TEST_F(PageStateSerializationTest, BackwardsCompat_v14) { 412 TestBackwardsCompat(14); 413 } 414 415 TEST_F(PageStateSerializationTest, BackwardsCompat_v15) { 416 TestBackwardsCompat(15); 417 } 418 419 TEST_F(PageStateSerializationTest, BackwardsCompat_v16) { 420 TestBackwardsCompat(16); 421 } 422 423 TEST_F(PageStateSerializationTest, BackwardsCompat_v18) { 424 TestBackwardsCompat(18); 425 } 426 427 } // namespace 428 } // namespace content 429
