Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 1 | // Copyright 2017 PDFium 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 | |
Jane Liu | f63e813 | 2017-07-25 18:11:27 -0400 | [diff] [blame] | 5 | #include <memory> |
| 6 | #include <string> |
| 7 | #include <vector> |
| 8 | |
Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 9 | #include "public/fpdf_attachment.h" |
Jane Liu | 18ae06d | 2017-07-18 10:15:16 -0400 | [diff] [blame] | 10 | #include "public/fpdfview.h" |
Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 11 | #include "testing/embedder_test.h" |
| 12 | |
| 13 | class FPDFAttachmentEmbeddertest : public EmbedderTest {}; |
| 14 | |
| 15 | TEST_F(FPDFAttachmentEmbeddertest, ExtractAttachments) { |
| 16 | // Open a file with two attachments. |
| 17 | ASSERT_TRUE(OpenDocument("embedded_attachments.pdf")); |
| 18 | EXPECT_EQ(2, FPDFDoc_GetAttachmentCount(document())); |
| 19 | |
Jane Liu | 18ae06d | 2017-07-18 10:15:16 -0400 | [diff] [blame] | 20 | // Retrieve the first attachment. |
| 21 | FPDF_ATTACHMENT attachment = FPDFDoc_GetAttachment(document(), 0); |
| 22 | ASSERT_TRUE(attachment); |
| 23 | |
Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 24 | // Check that the name of the first attachment is correct. |
Jane Liu | 18ae06d | 2017-07-18 10:15:16 -0400 | [diff] [blame] | 25 | unsigned long len = FPDFAttachment_GetName(attachment, nullptr, 0); |
Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 26 | std::vector<char> buf(len); |
Jane Liu | 18ae06d | 2017-07-18 10:15:16 -0400 | [diff] [blame] | 27 | EXPECT_EQ(12u, FPDFAttachment_GetName(attachment, buf.data(), len)); |
Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 28 | EXPECT_STREQ(L"1.txt", |
| 29 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 30 | .c_str()); |
Jane Liu | 18ae06d | 2017-07-18 10:15:16 -0400 | [diff] [blame] | 31 | |
| 32 | // Check that the content of the first attachment is correct. |
| 33 | len = FPDFAttachment_GetFile(attachment, nullptr, 0); |
| 34 | buf.clear(); |
| 35 | buf.resize(len); |
| 36 | ASSERT_EQ(4u, FPDFAttachment_GetFile(attachment, buf.data(), len)); |
| 37 | EXPECT_EQ(std::string("test"), std::string(buf.data(), 4)); |
| 38 | |
| 39 | // Check that a non-existent key does not exist. |
| 40 | EXPECT_FALSE( |
| 41 | FPDFAttachment_HasKey(attachment, GetFPDFWideString(L"none").get())); |
| 42 | |
| 43 | // Check that the string value of a non-string dictionary entry is empty. |
| 44 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> size_key = |
| 45 | GetFPDFWideString(L"Size"); |
| 46 | EXPECT_EQ(FPDF_OBJECT_NUMBER, |
| 47 | FPDFAttachment_GetValueType(attachment, size_key.get())); |
| 48 | EXPECT_EQ(2u, FPDFAttachment_GetStringValue(attachment, size_key.get(), |
| 49 | nullptr, 0)); |
| 50 | |
| 51 | // Check that the creation date of the first attachment is correct. |
| 52 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> date_key = |
| 53 | GetFPDFWideString(L"CreationDate"); |
| 54 | len = FPDFAttachment_GetStringValue(attachment, date_key.get(), nullptr, 0); |
| 55 | buf.clear(); |
| 56 | buf.resize(len); |
| 57 | EXPECT_EQ(48u, FPDFAttachment_GetStringValue(attachment, date_key.get(), |
| 58 | buf.data(), len)); |
| 59 | EXPECT_STREQ(L"D:20170712214438-07'00'", |
| 60 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 61 | .c_str()); |
| 62 | |
| 63 | // Retrieve the second attachment. |
| 64 | attachment = FPDFDoc_GetAttachment(document(), 1); |
| 65 | ASSERT_TRUE(attachment); |
| 66 | |
| 67 | // Retrieve the second attachment file. |
| 68 | len = FPDFAttachment_GetFile(attachment, nullptr, 0); |
| 69 | buf.clear(); |
| 70 | buf.resize(len); |
| 71 | EXPECT_EQ(5869u, FPDFAttachment_GetFile(attachment, buf.data(), len)); |
| 72 | |
| 73 | // Check that the calculated checksum of the file data matches expectation. |
| 74 | const char kCheckSum[] = "72afcddedf554dda63c0c88e06f1ce18"; |
| 75 | const wchar_t kCheckSumW[] = L"<72AFCDDEDF554DDA63C0C88E06F1CE18>"; |
| 76 | const std::string generated_checksum = |
| 77 | GenerateMD5Base16(reinterpret_cast<uint8_t*>(buf.data()), len); |
| 78 | EXPECT_EQ(kCheckSum, generated_checksum); |
| 79 | |
| 80 | // Check that the stored checksum matches expectation. |
| 81 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> checksum_key = |
| 82 | GetFPDFWideString(L"CheckSum"); |
| 83 | len = |
| 84 | FPDFAttachment_GetStringValue(attachment, checksum_key.get(), nullptr, 0); |
| 85 | buf.clear(); |
| 86 | buf.resize(len); |
| 87 | EXPECT_EQ(70u, FPDFAttachment_GetStringValue(attachment, checksum_key.get(), |
| 88 | buf.data(), len)); |
| 89 | EXPECT_EQ(kCheckSumW, |
| 90 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))); |
Jane Liu | 53aafa9 | 2017-07-12 19:55:02 -0400 | [diff] [blame] | 91 | } |
Jane Liu | 54a4214 | 2017-07-24 16:40:54 -0400 | [diff] [blame] | 92 | |
| 93 | TEST_F(FPDFAttachmentEmbeddertest, AddAttachments) { |
| 94 | // Open a file with two attachments. |
| 95 | ASSERT_TRUE(OpenDocument("embedded_attachments.pdf")); |
| 96 | EXPECT_EQ(2, FPDFDoc_GetAttachmentCount(document())); |
| 97 | |
| 98 | // Check that adding an attachment with an empty name would fail. |
| 99 | EXPECT_FALSE(FPDFDoc_AddAttachment(document(), nullptr)); |
| 100 | |
| 101 | // Add an attachment to the beginning of the embedded file list. |
| 102 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> file_name = |
| 103 | GetFPDFWideString(L"0.txt"); |
| 104 | FPDF_ATTACHMENT attachment = |
| 105 | FPDFDoc_AddAttachment(document(), file_name.get()); |
| 106 | |
| 107 | // Check that writing to a file with nullptr but non-zero bytes would fail. |
| 108 | EXPECT_FALSE(FPDFAttachment_SetFile(attachment, document(), nullptr, 10)); |
| 109 | |
| 110 | // Set the new attachment's file. |
| 111 | constexpr char kContents1[] = "Hello!"; |
| 112 | EXPECT_TRUE(FPDFAttachment_SetFile(attachment, document(), kContents1, |
| 113 | strlen(kContents1))); |
| 114 | |
| 115 | // Verify the name of the new attachment (i.e. the first attachment). |
| 116 | attachment = FPDFDoc_GetAttachment(document(), 0); |
| 117 | ASSERT_TRUE(attachment); |
| 118 | unsigned long len = FPDFAttachment_GetName(attachment, nullptr, 0); |
| 119 | std::vector<char> buf(len); |
| 120 | EXPECT_EQ(12u, FPDFAttachment_GetName(attachment, buf.data(), len)); |
| 121 | EXPECT_STREQ(L"0.txt", |
| 122 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 123 | .c_str()); |
| 124 | |
| 125 | // Verify the content of the new attachment (i.e. the first attachment). |
| 126 | len = FPDFAttachment_GetFile(attachment, nullptr, 0); |
| 127 | buf.clear(); |
| 128 | buf.resize(len); |
| 129 | ASSERT_EQ(6u, FPDFAttachment_GetFile(attachment, buf.data(), len)); |
| 130 | EXPECT_EQ(std::string(kContents1), std::string(buf.data(), 6)); |
| 131 | |
| 132 | // Add an attachment to the end of the embedded file list and set its file. |
| 133 | file_name = GetFPDFWideString(L"z.txt"); |
| 134 | attachment = FPDFDoc_AddAttachment(document(), file_name.get()); |
| 135 | constexpr char kContents2[] = "World!"; |
| 136 | EXPECT_TRUE(FPDFAttachment_SetFile(attachment, document(), kContents2, |
| 137 | strlen(kContents2))); |
| 138 | EXPECT_EQ(4, FPDFDoc_GetAttachmentCount(document())); |
| 139 | |
| 140 | // Verify the name of the new attachment (i.e. the fourth attachment). |
| 141 | attachment = FPDFDoc_GetAttachment(document(), 3); |
| 142 | ASSERT_TRUE(attachment); |
| 143 | len = FPDFAttachment_GetName(attachment, nullptr, 0); |
| 144 | buf.clear(); |
| 145 | buf.resize(len); |
| 146 | EXPECT_EQ(12u, FPDFAttachment_GetName(attachment, buf.data(), len)); |
| 147 | EXPECT_STREQ(L"z.txt", |
| 148 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 149 | .c_str()); |
| 150 | |
| 151 | // Verify the content of the new attachment (i.e. the fourth attachment). |
| 152 | len = FPDFAttachment_GetFile(attachment, nullptr, 0); |
| 153 | buf.clear(); |
| 154 | buf.resize(len); |
| 155 | ASSERT_EQ(6u, FPDFAttachment_GetFile(attachment, buf.data(), len)); |
| 156 | EXPECT_EQ(std::string(kContents2), std::string(buf.data(), 6)); |
| 157 | } |
| 158 | |
| 159 | TEST_F(FPDFAttachmentEmbeddertest, AddAttachmentsWithParams) { |
| 160 | // Open a file with two attachments. |
| 161 | ASSERT_TRUE(OpenDocument("embedded_attachments.pdf")); |
| 162 | EXPECT_EQ(2, FPDFDoc_GetAttachmentCount(document())); |
| 163 | |
| 164 | // Add an attachment to the embedded file list. |
| 165 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> file_name = |
| 166 | GetFPDFWideString(L"5.txt"); |
| 167 | FPDF_ATTACHMENT attachment = |
| 168 | FPDFDoc_AddAttachment(document(), file_name.get()); |
| 169 | constexpr char kContents[] = "Hello World!"; |
| 170 | EXPECT_TRUE(FPDFAttachment_SetFile(attachment, document(), kContents, |
| 171 | strlen(kContents))); |
| 172 | |
| 173 | // Set the date to be an arbitrary value. |
| 174 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> date_key = |
| 175 | GetFPDFWideString(L"CreationDate"); |
| 176 | constexpr wchar_t kDateW[] = L"D:20170720161527-04'00'"; |
| 177 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> ws_date = |
| 178 | GetFPDFWideString(kDateW); |
| 179 | EXPECT_TRUE( |
| 180 | FPDFAttachment_SetStringValue(attachment, date_key.get(), ws_date.get())); |
| 181 | |
| 182 | // Set the checksum to be an arbitrary value. |
| 183 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> checksum_key = |
| 184 | GetFPDFWideString(L"CheckSum"); |
| 185 | constexpr wchar_t kCheckSumW[] = L"<ABCDEF01234567899876543210FEDCBA>"; |
| 186 | std::unique_ptr<unsigned short, pdfium::FreeDeleter> ws_checksum = |
| 187 | GetFPDFWideString(kCheckSumW); |
| 188 | EXPECT_TRUE(FPDFAttachment_SetStringValue(attachment, checksum_key.get(), |
| 189 | ws_checksum.get())); |
| 190 | |
| 191 | // Verify the name of the new attachment (i.e. the second attachment). |
| 192 | attachment = FPDFDoc_GetAttachment(document(), 1); |
| 193 | ASSERT_TRUE(attachment); |
| 194 | unsigned long len = FPDFAttachment_GetName(attachment, nullptr, 0); |
| 195 | std::vector<char> buf(len); |
| 196 | EXPECT_EQ(12u, FPDFAttachment_GetName(attachment, buf.data(), len)); |
| 197 | EXPECT_STREQ(L"5.txt", |
| 198 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 199 | .c_str()); |
| 200 | |
| 201 | // Verify the content of the new attachment. |
| 202 | len = FPDFAttachment_GetFile(attachment, nullptr, 0); |
| 203 | buf.clear(); |
| 204 | buf.resize(len); |
| 205 | ASSERT_EQ(12u, FPDFAttachment_GetFile(attachment, buf.data(), len)); |
| 206 | EXPECT_EQ(std::string(kContents), std::string(buf.data(), 12)); |
| 207 | |
| 208 | // Verify the creation date of the new attachment. |
| 209 | len = FPDFAttachment_GetStringValue(attachment, date_key.get(), nullptr, 0); |
| 210 | buf.clear(); |
| 211 | buf.resize(len); |
| 212 | EXPECT_EQ(48u, FPDFAttachment_GetStringValue(attachment, date_key.get(), |
| 213 | buf.data(), len)); |
| 214 | EXPECT_STREQ(kDateW, |
| 215 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 216 | .c_str()); |
| 217 | |
| 218 | // Verify the checksum of the new attachment. |
| 219 | len = |
| 220 | FPDFAttachment_GetStringValue(attachment, checksum_key.get(), nullptr, 0); |
| 221 | buf.clear(); |
| 222 | buf.resize(len); |
| 223 | EXPECT_EQ(70u, FPDFAttachment_GetStringValue(attachment, checksum_key.get(), |
| 224 | buf.data(), len)); |
| 225 | EXPECT_STREQ(kCheckSumW, |
| 226 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 227 | .c_str()); |
| 228 | |
| 229 | // Overwrite the existing file with empty content, and check that the checksum |
| 230 | // gets updated to the correct value. |
| 231 | EXPECT_TRUE(FPDFAttachment_SetFile(attachment, document(), nullptr, 0)); |
| 232 | EXPECT_EQ(0u, FPDFAttachment_GetFile(attachment, nullptr, 0)); |
| 233 | len = |
| 234 | FPDFAttachment_GetStringValue(attachment, checksum_key.get(), nullptr, 0); |
| 235 | buf.clear(); |
| 236 | buf.resize(len); |
| 237 | EXPECT_EQ(70u, FPDFAttachment_GetStringValue(attachment, checksum_key.get(), |
| 238 | buf.data(), len)); |
| 239 | EXPECT_EQ(L"<D41D8CD98F00B204E9800998ECF8427E>", |
| 240 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))); |
Jane Liu | f63e813 | 2017-07-25 18:11:27 -0400 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | TEST_F(FPDFAttachmentEmbeddertest, DeleteAttachment) { |
| 244 | // Open a file with two attachments. |
| 245 | ASSERT_TRUE(OpenDocument("embedded_attachments.pdf")); |
| 246 | EXPECT_EQ(2, FPDFDoc_GetAttachmentCount(document())); |
| 247 | |
| 248 | // Verify the name of the first attachment. |
| 249 | FPDF_ATTACHMENT attachment = FPDFDoc_GetAttachment(document(), 0); |
| 250 | unsigned long len = FPDFAttachment_GetName(attachment, nullptr, 0); |
| 251 | std::vector<char> buf(len); |
| 252 | EXPECT_EQ(12u, FPDFAttachment_GetName(attachment, buf.data(), len)); |
| 253 | EXPECT_STREQ(L"1.txt", |
| 254 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 255 | .c_str()); |
| 256 | |
| 257 | // Delete the first attachment. |
| 258 | EXPECT_TRUE(FPDFDoc_DeleteAttachment(document(), 0)); |
| 259 | EXPECT_EQ(1, FPDFDoc_GetAttachmentCount(document())); |
| 260 | |
| 261 | // Verify the name of the new first attachment. |
| 262 | attachment = FPDFDoc_GetAttachment(document(), 0); |
| 263 | len = FPDFAttachment_GetName(attachment, nullptr, 0); |
| 264 | buf.clear(); |
| 265 | buf.resize(len); |
| 266 | EXPECT_EQ(26u, FPDFAttachment_GetName(attachment, buf.data(), len)); |
| 267 | EXPECT_STREQ(L"attached.pdf", |
| 268 | GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data())) |
| 269 | .c_str()); |
| 270 | } |