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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 #ifndef THIRD_PARTY_ZLIB_GOOGLE_ZIP_READER_H_ | 4 #ifndef THIRD_PARTY_ZLIB_GOOGLE_ZIP_READER_H_ |
5 #define THIRD_PARTY_ZLIB_GOOGLE_ZIP_READER_H_ | 5 #define THIRD_PARTY_ZLIB_GOOGLE_ZIP_READER_H_ |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <memory> | 10 #include <memory> |
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155 bool OpenCurrentEntryInZip(); | 155 bool OpenCurrentEntryInZip(); |
156 | 156 |
157 // Locates an entry in the zip file and opens it. Returns true on | 157 // Locates an entry in the zip file and opens it. Returns true on |
158 // success. This function internally calls OpenCurrentEntryInZip() on | 158 // success. This function internally calls OpenCurrentEntryInZip() on |
159 // success. On failure, current_entry_info() becomes NULL. | 159 // success. On failure, current_entry_info() becomes NULL. |
160 bool LocateAndOpenEntry(const base::FilePath& path_in_zip); | 160 bool LocateAndOpenEntry(const base::FilePath& path_in_zip); |
161 | 161 |
162 // Extracts the current entry in chunks to |delegate|. | 162 // Extracts the current entry in chunks to |delegate|. |
163 bool ExtractCurrentEntry(WriterDelegate* delegate) const; | 163 bool ExtractCurrentEntry(WriterDelegate* delegate) const; |
164 | 164 |
165 // Extracts part of the current entry to |delegate|, starting from the | |
166 // beginning of the entry. | |
167 bool ExtractPartOfCurrentEntry(WriterDelegate* delegate, | |
168 size_t num_bytes) const; | |
satorux1
2017/07/14 01:00:53
Could you add a unit test for this function to zip
mortonm
2017/07/14 17:08:45
Done.
| |
169 | |
165 // Extracts the current entry to the given output file path. If the | 170 // Extracts the current entry to the given output file path. If the |
166 // current file is a directory, just creates a directory | 171 // current file is a directory, just creates a directory |
167 // instead. Returns true on success. OpenCurrentEntryInZip() must be | 172 // instead. Returns true on success. OpenCurrentEntryInZip() must be |
168 // called beforehand. | 173 // called beforehand. |
169 // | 174 // |
170 // This function preserves the timestamp of the original entry. If that | 175 // This function preserves the timestamp of the original entry. If that |
171 // timestamp is not valid, the timestamp will be set to the current time. | 176 // timestamp is not valid, the timestamp will be set to the current time. |
172 bool ExtractCurrentEntryToFilePath( | 177 bool ExtractCurrentEntryToFilePath( |
173 const base::FilePath& output_file_path) const; | 178 const base::FilePath& output_file_path) const; |
174 | 179 |
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210 // passing it around by value, but by reference or pointer. | 215 // passing it around by value, but by reference or pointer. |
211 // Note: the value returned by EntryInfo::original_size() cannot be | 216 // Note: the value returned by EntryInfo::original_size() cannot be |
212 // trusted, so the real size of the uncompressed contents can be different. | 217 // trusted, so the real size of the uncompressed contents can be different. |
213 // Use max_read_bytes to limit the ammount of memory used to carry the entry. | 218 // Use max_read_bytes to limit the ammount of memory used to carry the entry. |
214 // If the real size of the uncompressed data is bigger than max_read_bytes | 219 // If the real size of the uncompressed data is bigger than max_read_bytes |
215 // then false is returned. |max_read_bytes| must be non-zero. | 220 // then false is returned. |max_read_bytes| must be non-zero. |
216 bool ExtractCurrentEntryToString( | 221 bool ExtractCurrentEntryToString( |
217 size_t max_read_bytes, | 222 size_t max_read_bytes, |
218 std::string* output) const; | 223 std::string* output) const; |
219 | 224 |
225 // Same as ExtractCurrentEntryToString(), except specifies the number of bytes | |
226 // to read into the string so that it is possible to only read a partial | |
227 // amount of the entry into a string. This is used to infer the type of | |
228 // MachO files on Mac by sniffing their magic number in the header. | |
229 bool ExtractPartOfCurrentEntryToString(size_t max_read_bytes, | |
satorux1
2017/07/14 01:00:53
Ditto.
mortonm
2017/07/14 17:08:45
Done.
| |
230 std::string* output) const; | |
231 | |
220 // Returns the current entry info. Returns NULL if the current entry is | 232 // Returns the current entry info. Returns NULL if the current entry is |
221 // not yet opened. OpenCurrentEntryInZip() must be called beforehand. | 233 // not yet opened. OpenCurrentEntryInZip() must be called beforehand. |
222 EntryInfo* current_entry_info() const { | 234 EntryInfo* current_entry_info() const { |
223 return current_entry_info_.get(); | 235 return current_entry_info_.get(); |
224 } | 236 } |
225 | 237 |
226 // Returns the number of entries in the zip file. | 238 // Returns the number of entries in the zip file. |
227 // Open() must be called beforehand. | 239 // Open() must be called beforehand. |
228 int num_entries() const { return num_entries_; } | 240 int num_entries() const { return num_entries_; } |
229 | 241 |
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272 private: | 284 private: |
273 base::File* file_; | 285 base::File* file_; |
274 int64_t file_length_; | 286 int64_t file_length_; |
275 | 287 |
276 DISALLOW_COPY_AND_ASSIGN(FileWriterDelegate); | 288 DISALLOW_COPY_AND_ASSIGN(FileWriterDelegate); |
277 }; | 289 }; |
278 | 290 |
279 } // namespace zip | 291 } // namespace zip |
280 | 292 |
281 #endif // THIRD_PARTY_ZLIB_GOOGLE_ZIP_READER_H_ | 293 #endif // THIRD_PARTY_ZLIB_GOOGLE_ZIP_READER_H_ |
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