1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* Copyright 2016 Software Freedom Conservancy Inc.
*
* This software is licensed under the GNU Lesser General Public License
* (version 2.1 or later). See the COPYING file in this distribution.
*/
namespace LibraryFiles {
static bool use_fallback_copy_func = false;
public void select_copy_function() {
var import_dir = AppDirs.get_import_dir();
try {
var info = import_dir.query_filesystem_info("filesystem::type", null);
use_fallback_copy_func = info.get_attribute_as_string("filesystem::type") == "nfs";
} catch (Error error) {
critical ("Failed to query fs type: %s", error.message);
use_fallback_copy_func = true;
}
info ("Using fallback copy: %s", use_fallback_copy_func.to_string());
}
// This method uses global::generate_unique_file_at in order to "claim" a file in the filesystem.
// Thus, when the method returns success a file may exist already, and should be overwritten.
//
// This function is thread safe.
public File? generate_unique_file(string basename, MediaMetadata? metadata, time_t ts, out bool collision)
throws Error {
// use exposure timestamp over the supplied one (which probably comes from the file's
// modified time, or is simply time()), unless it's zero, in which case use current time
time_t timestamp = ts;
if (metadata != null) {
MetadataDateTime? date_time = metadata.get_creation_date_time();
if (date_time != null)
timestamp = date_time.get_timestamp();
else if (timestamp == 0)
timestamp = time_t();
}
// build a directory tree inside the library
File dir = AppDirs.get_baked_import_dir(timestamp);
try {
dir.make_directory_with_parents(null);
} catch (Error err) {
if (!(err is IOError.EXISTS))
throw err;
// silently ignore not creating a directory that already exists
}
// Optionally convert to lower-case.
string newbasename = convert_basename(basename);
return global::generate_unique_file(dir, newbasename, out collision);
}
// Create the basename for files in the library.
// Depending on the setting USE_LOWERCASE_FILENAMES the basename will be converted to lower case or not
public string convert_basename(string basename) {
if (Config.Facade.get_instance().get_use_lowercase_filenames()) {
return basename.down();
} else {
return basename;
}
}
// This function is thread-safe.
private File duplicate(File src, FileProgressCallback? progress_callback, bool blacklist) throws Error {
time_t timestamp = 0;
try {
timestamp = query_file_modified(src);
} catch (Error err) {
critical("Unable to access file modification for %s: %s", src.get_path(), err.message);
}
MediaMetadata? metadata = null;
if (VideoReader.is_supported_video_file(src)) {
VideoReader reader = new VideoReader(src);
try {
metadata = reader.read_metadata();
} catch (Error err) {
// ignored, leave metadata as null
}
} else {
PhotoFileReader reader = PhotoFileFormat.get_by_file_extension(src).create_reader(
src.get_path());
try {
metadata = reader.read_metadata();
} catch (Error err) {
// ignored, leave metadata as null
}
}
bool collision;
File? dest = generate_unique_file(src.get_basename(), metadata, timestamp, out collision);
if (dest == null)
throw new FileError.FAILED("Unable to generate unique pathname for destination");
if (blacklist)
LibraryMonitor.blacklist_file(dest, "LibraryFiles.duplicate");
try {
if (use_fallback_copy_func) {
fallback_copy(src, dest, progress_callback);
} else {
src.copy(dest, FileCopyFlags.ALL_METADATA | FileCopyFlags.OVERWRITE, null, progress_callback);
}
if (blacklist)
LibraryMonitor.unblacklist_file(dest);
} catch (Error err) {
message("There was a problem copying %s: %s", src.get_path(), err.message);
if (blacklist && (md5_file(src) != md5_file(dest)))
LibraryMonitor.unblacklist_file(dest);
}
// Make file writable by getting current Unix mode and or it with 600 (user read/write)
try {
FileInfo info = dest.query_info(FileAttribute.UNIX_MODE, FileQueryInfoFlags.NONE);
uint32 mode = info.get_attribute_uint32(FileAttribute.UNIX_MODE) | 0600;
if (!dest.set_attribute_uint32(FileAttribute.UNIX_MODE, mode, FileQueryInfoFlags.NONE)) {
warning("Could not make file writable");
}
} catch (Error err) {
warning("Could not make file writable: %s", err.message);
}
return dest;
}
public void fallback_copy(File? src, File? dst, FileProgressCallback? callback) throws Error {
if (src == null || dst == null) {
return;
}
var f = FileStream.open(src.get_path(), "rb");
if (f != null) {
f.seek(0, FileSeek.END);
var size = f.tell();
f.seek(0, FileSeek.SET);
debug ("Copying %s to %s, size is %ld", src.get_path(), dst.get_path(), size);
var g = FileStream.open(dst.get_path(), "wb");
if (g != null) {
uint8 buffer[4096];
size_t written = 0;
while (!f.eof()) {
var len = f.read(buffer);
if (len > 0) {
var out_len = g.write(buffer[0:len]);
if (out_len < 0) {
critical("Failed to write to file %s: %m", dst.get_path());
throw new IOError.FAILED("Failed to write to %s", dst.get_path());
}
written += len;
if (callback != null)
callback (written, size);
} else if (len < 0) {
critical("Failed to read from file %s: %m", src.get_path());
throw new IOError.FAILED("Failed to read from %s", src.get_path());
}
}
} else {
critical ("Failed to open %s: %m", dst.get_path());
throw new IOError.FAILED("Failed to open %s", dst.get_path());
}
} else {
critical ("Failed to open %s: %m", src.get_path());
throw new IOError.FAILED("Failed to open %s", src.get_path());
}
}
}
|
