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16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
17 | * See the License for the specific language governing permissions and |
17 | * See the License for the specific language governing permissions and |
18 | * limitations under the License. |
18 | * limitations under the License. |
19 | */ |
19 | */ |
20 | 20 | ||
21 | function git_get_latest_commit_message($git_dir) { |
21 | function git_get_latest_commit_id(string $git_dir): string { |
22 | // First try an official git client |
- | |
23 | $cmd = "git --git-dir=".escapeshellarg("$git_dir")." log -1 2>&1"; |
22 | // Note: The method "getTip()" of GLIP only implements "refs/heads/master" and "packed-refs" (but for packed-refs without "refs/remotes/origin/...") |
24 | $ec = -1; |
- | |
25 | $out = array(); |
- | |
26 | @exec($cmd, $out, $ec); |
- | |
27 | $out = implode("\n",$out); |
- | |
28 | if (($ec == 0) && ($out != '')) return $out; |
- | |
29 | 23 | ||
30 | // If that failed, try to decode the binary files outselves |
- | |
31 | $cont = @file_get_contents($git_dir.'/HEAD'); |
24 | $cont = @file_get_contents($git_dir . '/HEAD'); |
32 | if (preg_match('@ref: (.+)[\r\n]@', "$cont\n", $m) && file_exists($git_dir.'/'.$m[1])) { |
25 | if (preg_match('@ref: (.+)[\r\n]@', "$cont\n", $m) && file_exists($git_dir . '/' . $m[1])) { |
33 | // Example content of a .git folder file: |
26 | // Example content of a .git folder file: |
34 | // 091a5fa6b157be035e88f5d24aa329ba44d20d63 |
27 | // 091a5fa6b157be035e88f5d24aa329ba44d20d63 |
35 | // Not available |
- | |
36 | $commit_object = trim(file_get_contents($git_dir.'/'.$m[1])); |
28 | return trim(file_get_contents($git_dir . '/' . $m[1])); |
- | 29 | } |
|
- | 30 | ||
37 | } else if (file_exists($git_dir.'/refs/heads/master')) { |
31 | if (file_exists($git_dir . '/refs/heads/master')) { |
38 | // Missing at Plesk Git initial checkout, but available on update. |
32 | // Missing at Plesk Git initial checkout, but available on update. |
39 | $commit_object = trim(file_get_contents($git_dir.'/refs/heads/master')); |
33 | return trim(file_get_contents($git_dir . '/refs/heads/master')); |
- | 34 | } |
|
- | 35 | ||
- | 36 | if (file_exists($git_dir . '/packed-refs')) { |
|
- | 37 | // Example contents of the file: |
|
- | 38 | // # pack-refs with: peeled fully-peeled sorted |
|
- | 39 | // 5605bd539677494558470234266cb5885343e72b refs/remotes/origin/master |
|
- | 40 | // a3d910dd0cdca30827ae25b0f89045d8403b8843 refs/remotes/origin/patch-1 |
|
- | 41 | $subpaths = ['refs/heads/master', 'refs/remotes/origin/master']; |
|
- | 42 | foreach ($subpaths as $subpath) { |
|
- | 43 | $head = null; |
|
- | 44 | $f = fopen($git_dir . '/packed-refs', 'rb'); |
|
- | 45 | flock($f, LOCK_SH); |
|
- | 46 | while ($head === null && ($line = fgets($f)) !== false) { |
|
- | 47 | if ($line[0] == '#') |
|
- | 48 | continue; |
|
- | 49 | $parts = explode(' ', trim($line)); |
|
- | 50 | if (count($parts) == 2 && $parts[1] == $subpath) |
|
- | 51 | $head = $parts[0]; |
|
- | 52 | } |
|
- | 53 | fclose($f); |
|
- | 54 | if ($head !== null) |
|
- | 55 | return $head; |
|
- | 56 | } |
|
- | 57 | } |
|
- | 58 | ||
40 | } else if (file_exists($git_dir.'/FETCH_HEAD')) { |
59 | if (file_exists($git_dir . '/FETCH_HEAD')) { |
41 | // Example content of a Plesk Git folder (fresh): |
60 | // Example content of a Plesk Git folder (fresh): |
42 | // 091a5fa6b157be035e88f5d24aa329ba44d20d63 not-for-merge branch 'master' of https://github.com/danielmarschall/oidplus |
61 | // 091a5fa6b157be035e88f5d24aa329ba44d20d63 not-for-merge branch 'master' of https://github.com/danielmarschall/oidplus |
43 | // 091a5fa6b157be035e88f5d24aa329ba44d20d63 not-for-merge remote-tracking branch 'origin/trunk' of https://github.com/danielmarschall/oidplus |
62 | // 091a5fa6b157be035e88f5d24aa329ba44d20d63 not-for-merge remote-tracking branch 'origin/trunk' of https://github.com/danielmarschall/oidplus |
44 | $cont = file_get_contents($git_dir.'/FETCH_HEAD'); |
63 | $cont = file_get_contents($git_dir . '/FETCH_HEAD'); |
45 | $commit_object = substr(trim($cont),0,40); |
64 | return substr(trim($cont), 0, 40); |
46 | } else { |
- | |
47 | throw new Exception("Cannot detect last commit object"); |
- | |
48 | } |
65 | } |
49 | 66 | ||
- | 67 | throw new Exception("Cannot detect latest Commit ID"); |
|
- | 68 | } |
|
- | 69 | ||
- | 70 | function git_get_latest_commit_message(string $git_dir): string { |
|
- | 71 | // First try an official git client |
|
- | 72 | $cmd = "git --git-dir=" . escapeshellarg("$git_dir") . " log -1 2>&1"; |
|
- | 73 | $ec = -1; |
|
- | 74 | $out = array(); |
|
- | 75 | @exec($cmd, $out, $ec); |
|
50 | $objects_dir = $git_dir . '/objects'; |
76 | $out = implode("\n", $out); |
- | 77 | if (($ec == 0) && ($out != '')) return $out; |
|
51 | 78 | ||
- | 79 | // If that failed, try to decode the binary files ourselves |
|
- | 80 | $commit_object = git_get_latest_commit_id($git_dir); |
|
- | 81 | $objects_dir = $git_dir . '/objects'; |
|
52 | 82 | ||
53 | // Sometimes, objects are uncompressed, sometimes compressed in a pack file |
83 | // Sometimes, objects are uncompressed, sometimes compressed in a pack file |
54 | // Plesk initial checkout is compressed, but pulls via web interface |
84 | // Plesk initial checkout is compressed, but pulls via web interface |
55 | // save uncompressed files |
85 | // save uncompressed files |
56 | 86 | ||
57 | $uncompressed_file = $objects_dir . '/' . substr($commit_object,0,2) . '/' . substr($commit_object,2); |
- | |
58 | if (file_exists($uncompressed_file)) { |
87 | if (class_exists('ViaThinkSoft\Glip\Git')) { |
59 | // Read compressed data |
88 | // https://github.com/danielmarschall/glip |
60 | $compressed = file_get_contents($uncompressed_file); |
89 | // composer require danielmarschall/glip |
61 | - | ||
62 | // Uncompress |
- | |
63 | $uncompressed = @gzuncompress($compressed); |
90 | $git = new ViaThinkSoft\Glip\Git($git_dir); |
64 | if ($uncompressed === false) throw new Exception("Decompression failed"); |
- | |
65 | - | ||
66 | // The format is "commit <nnn>\0<Message>" where <nnn> is only a 3 digit number?! |
- | |
67 | $ary = explode(chr(0), $uncompressed); |
91 | $obj = $git->getObject(hex2bin($commit_object)); |
68 | $uncompressed = array_pop($ary); |
- | |
69 | - | ||
70 | return $uncompressed; |
92 | return $obj->detail; |
71 | } else { |
93 | } else { |
72 | $pack_files = @glob($objects_dir.'/pack/pack-*.pack'); |
94 | // Own implementation (the compressed read cannot handle delta objects yet) |
- | 95 | ||
- | 96 | $uncompressed_file = $objects_dir . '/' . substr($commit_object, 0, 2) . '/' . substr($commit_object, 2); |
|
73 | $last_exception = 'No pack files found'; |
97 | if (file_exists($uncompressed_file)) { |
74 | if ($pack_files) foreach ($pack_files as $basename) { |
98 | // Read compressed data |
75 | $basename = substr(basename($basename),0,strlen(basename($basename))-5); |
99 | $compressed = file_get_contents($uncompressed_file); |
- | 100 | ||
76 | try { |
101 | // Uncompress |
77 | if (class_exists('ViaThinkSoft\Glip\Git')) { |
102 | $uncompressed = @gzuncompress($compressed); |
78 | // https://github.com/danielmarschall/glip |
103 | if ($uncompressed === false) throw new Exception("Decompression failed"); |
- | 104 | ||
79 | // composer require danielmarschall/glip |
105 | // The format is "<type> <size>\0<Message>" |
80 | $git = new ViaThinkSoft\Glip\Git($git_dir); |
106 | list($hdr, $object_data) = explode("\0", $uncompressed, 2); |
81 | $obj = $git->getObject(hex2bin($commit_object)); |
107 | // sscanf($hdr, "%s %d", $type, $object_size); |
82 | return $obj->detail; |
108 | return $object_data; |
83 | } else { |
109 | } else { |
84 | // Own implementation (cannot read delta objects yet) |
110 | $pack_files = @glob($objects_dir . '/pack/pack-*.pack'); |
- | 111 | if ($pack_files) { |
|
- | 112 | foreach ($pack_files as $basename) { |
|
- | 113 | $basename = substr(basename($basename), 0, strlen(basename($basename)) - 5); |
|
85 | return git_read_object($commit_object, |
114 | return git_read_object($commit_object, |
86 | $objects_dir.'/pack/'.$basename.'.idx', |
115 | $objects_dir . '/pack/' . $basename . '.idx', |
87 | $objects_dir.'/pack/'.$basename.'.pack' |
116 | $objects_dir . '/pack/' . $basename . '.pack' |
88 | ); |
117 | ); |
89 | } |
118 | } |
90 | } catch (Exception $e) { |
- | |
91 | $last_exception = $e; |
- | |
92 | } |
119 | } |
- | 120 | throw new Exception("No pack files found"); |
|
93 | } |
121 | } |
94 | throw new Exception($last_exception); |
- | |
95 | } |
122 | } |
96 | } |
123 | } |
97 | 124 | ||
98 | function git_read_object($object_wanted, $idx_file, $pack_file, $debug=false) { |
125 | function git_read_object(string $object_wanted, string $idx_file, string $pack_file, bool $debug = false): string { |
99 | // More info about the IDX and PACK format: https://git-scm.com/docs/pack-format |
126 | // More info about the IDX and PACK format: https://git-scm.com/docs/pack-format |
100 | 127 | ||
101 | // Do some checks |
128 | // Do some checks |
102 | if (!preg_match('/^[0-9a-fA-F]{40}$/', $object_wanted, $m)) throw new Exception("Is not a valid object: $object_wanted"); |
129 | if (!preg_match('/^[0-9a-fA-F]{40}$/', $object_wanted, $m)) throw new Exception("Is not a valid object: $object_wanted"); |
103 | if (!file_exists($idx_file)) throw new Exception("Idx file $idx_file not found"); |
130 | if (!file_exists($idx_file)) throw new Exception("Idx file $idx_file not found"); |
Line 121... | Line 148... | ||
121 | if ($debug) echo "Index file version = $version\n"; |
148 | if ($debug) echo "Index file version = $version\n"; |
122 | 149 | ||
123 | // Read fanout table |
150 | // Read fanout table |
124 | fseek($fp, $fanout_offset); |
151 | fseek($fp, $fanout_offset); |
125 | $fanout_ary[0] = 0; |
152 | $fanout_ary[0] = 0; |
126 | $fanout_ary = unpack('N*', fread($fp, 4*256)); |
153 | $fanout_ary = unpack('N*', fread($fp, 4 * 256)); |
127 | $num_objects = $fanout_ary[256]; |
154 | $num_objects = $fanout_ary[256]; |
128 | 155 | ||
129 | // Find out approximate object number (from fanout table) |
156 | // Find out approximate object number (from fanout table) |
130 | $fanout_index = hexdec(substr($object_wanted,0,2)); |
157 | $fanout_index = hexdec(substr($object_wanted, 0, 2)); |
131 | if ($debug) echo "Fanout index = ".($fanout_index-1)."\n"; |
158 | if ($debug) echo "Fanout index = " . ($fanout_index - 1) . "\n"; |
132 | $object_no = $fanout_ary[$fanout_index]; // approximate |
159 | $object_no = $fanout_ary[$fanout_index]; // approximate |
133 | if ($debug) echo "Object no approx $object_no\n"; |
160 | if ($debug) echo "Object no approx $object_no\n"; |
134 | 161 | ||
135 | // Find the exact object number |
162 | // Find the exact object number |
136 | fseek($fp, $fanout_offset + 4*256 + 20*$object_no); |
163 | fseek($fp, $fanout_offset + 4 * 256 + 20 * $object_no); |
137 | $object_no--; |
164 | $object_no--; |
138 | $pack_offset = -1; // avoid that phpstan complains |
165 | $pack_offset = -1; // avoid that phpstan complains |
139 | do { |
166 | do { |
140 | $object_no++; |
167 | $object_no++; |
141 | if ($version == 1) { |
168 | if ($version == 1) { |
142 | $pack_offset = fread($fp, 4); |
169 | $pack_offset = fread($fp, 4); |
143 | } |
170 | } |
144 | $binary = fread($fp, 20); |
171 | $binary = fread($fp, 20); |
145 | if (substr(bin2hex($binary),0,2) != substr(strtolower($object_wanted),0,2)) { |
172 | if (substr(bin2hex($binary), 0, 2) != substr(strtolower($object_wanted), 0, 2)) { |
146 | throw new Exception("Object $object_wanted not found"); |
173 | throw new Exception("Object $object_wanted not found"); |
147 | } |
174 | } |
148 | } while (bin2hex($binary) != strtolower($object_wanted)); |
175 | } while (bin2hex($binary) != strtolower($object_wanted)); |
149 | if ($debug) echo "Exact object no = $object_no\n"; |
176 | if ($debug) echo "Exact object no = $object_no\n"; |
150 | 177 | ||
151 | if ($version == 2) { |
178 | if ($version == 2) { |
152 | // Get CRC32 |
179 | // Get CRC32 |
153 | fseek($fp, $fanout_offset + 4*256 + 20*$num_objects + 4*$object_no); |
180 | fseek($fp, $fanout_offset + 4 * 256 + 20 * $num_objects + 4 * $object_no); |
154 | $crc32 = unpack('H8', fread($fp,4))[1]; |
181 | $crc32 = unpack('H8', fread($fp, 4))[1]; |
155 | if ($debug) echo "CRC32 = ".$crc32."\n"; |
182 | if ($debug) echo "CRC32 = " . $crc32 . "\n"; |
156 | 183 | ||
157 | // Get offset (32 bit) |
184 | // Get offset (32 bit) |
158 | fseek($fp, $fanout_offset + 4*256 + 20*$num_objects + 4*$num_objects + 4*$object_no); |
185 | fseek($fp, $fanout_offset + 4 * 256 + 20 * $num_objects + 4 * $num_objects + 4 * $object_no); |
159 | $offset_info = unpack('N', fread($fp,4))[1]; |
186 | $offset_info = unpack('N', fread($fp, 4))[1]; |
160 | if ($offset_info >= 0x80000000) { |
187 | if ($offset_info >= 0x80000000) { |
161 | // MSB set, so the offset is 64 bit |
188 | // MSB set, so the offset is 64 bit |
162 | if ($debug) echo "64 bit pack offset\n"; |
189 | if ($debug) echo "64 bit pack offset\n"; |
163 | $offset_info &= 0x7FFFFFFF; |
190 | $offset_info &= 0x7FFFFFFF; |
164 | fseek($fp, $fanout_offset + 4*256 + 20*$num_objects + 4*$num_objects + 4*$num_objects + 8*$offset_info); |
191 | fseek($fp, $fanout_offset + 4 * 256 + 20 * $num_objects + 4 * $num_objects + 4 * $num_objects + 8 * $offset_info); |
165 | $pack_offset = unpack('J', fread($fp,8))[1]; |
192 | $pack_offset = unpack('J', fread($fp, 8))[1]; |
166 | } else { |
193 | } else { |
167 | // MSB is not set, so the offset is 32 bit |
194 | // MSB is not set, so the offset is 32 bit |
168 | if ($debug) echo "32 bit pack offset\n"; |
195 | if ($debug) echo "32 bit pack offset\n"; |
169 | $offset_info &= 0x7FFFFFFF; |
196 | $offset_info &= 0x7FFFFFFF; |
170 | $pack_offset = $offset_info; |
197 | $pack_offset = $offset_info; |
171 | } |
198 | } |
172 | } |
199 | } |
173 | 200 | ||
174 | if ($debug) echo "Pack file offset = ".sprintf('0x%x',$pack_offset)."\n"; |
201 | if ($debug) echo "Pack file offset = " . sprintf('0x%x', $pack_offset) . "\n"; |
175 | 202 | ||
176 | // Close index file |
203 | // Close index file |
177 | fclose($fp); |
204 | fclose($fp); |
178 | 205 | ||
179 | // Open pack file |
206 | // Open pack file |
180 | $fp = fopen($pack_file, 'rb'); |
207 | $fp = fopen($pack_file, 'rb'); |
181 | if (!$fp) throw new Exception("Cannot open pack file $pack_file"); |
208 | if (!$fp) throw new Exception("Cannot open pack file $pack_file"); |
182 | 209 | ||
183 | // Read type and first part of the size |
210 | // Read type and first part of the size |
184 | fseek($fp, $pack_offset); |
211 | fseek($fp, $pack_offset); |
185 | $size_info = unpack('C', fread($fp,1))[1]; |
212 | $size_info = unpack('C', fread($fp, 1))[1]; |
186 | 213 | ||
187 | // Detect type |
214 | // Detect type |
188 | $type = ($size_info & 0x70) >> 4; /*0b01110000*/ |
215 | $type = ($size_info & 0x70) >> 4; /*0b01110000*/ |
189 | switch ($type) { |
216 | switch ($type) { |
190 | case 1: |
217 | case 1: |
Line 209... | Line 236... | ||
209 | if ($debug) echo "Type = Invalid ($type)\n"; |
236 | if ($debug) echo "Type = Invalid ($type)\n"; |
210 | break; |
237 | break; |
211 | } |
238 | } |
212 | 239 | ||
213 | // Find out the expected unpacked size |
240 | // Find out the expected unpacked size |
214 | $size = $size_info & 0xF /*0x00001111*/; |
241 | $size = $size_info & 0xF /*0x00001111*/ |
- | 242 | ; |
|
215 | $shift_info = 4; |
243 | $shift_info = 4; |
216 | while ($size_info >= 0x80) { |
244 | while ($size_info >= 0x80) { |
217 | $size_info = unpack('C', fread($fp,1))[1]; |
245 | $size_info = unpack('C', fread($fp, 1))[1]; |
218 | $size = (($size_info & 0x7F) << $shift_info) + $size; |
246 | $size = (($size_info & 0x7F) << $shift_info) + $size; |
219 | $shift_info += 7; |
247 | $shift_info += 7; |
220 | } |
248 | } |
221 | if ($debug) echo "Expected unpacked size = $size\n"; |
249 | if ($debug) echo "Expected unpacked size = $size\n"; |
222 | 250 | ||
Line 227... | Line 255... | ||
227 | 255 | ||
228 | // Offset encoding |
256 | // Offset encoding |
229 | $offset = 0; |
257 | $offset = 0; |
230 | $shift_info = 0; |
258 | $shift_info = 0; |
231 | do { |
259 | do { |
232 | $offset_info = unpack('C', fread($fp,1))[1]; |
260 | $offset_info = unpack('C', fread($fp, 1))[1]; |
233 | $offset = (($offset_info & 0x7F) << $shift_info) + $offset; |
261 | $offset = (($offset_info & 0x7F) << $shift_info) + $offset; |
234 | $shift_info += 7; |
262 | $shift_info += 7; |
235 | } while ($offset_info >= 0x80); |
263 | } while ($offset_info >= 0x80); |
236 | 264 | ||
237 | if ($debug) echo "Delta negative offset: $offset\n"; |
265 | if ($debug) echo "Delta negative offset: $offset\n"; |
238 | throw new Exception("OBJ_OFS_DELTA is currently not implemented"); // TODO! Implement OBJ_OFS_DELTA! |
266 | throw new Exception("OBJ_OFS_DELTA is currently not implemented"); // TODO! Implement OBJ_OFS_DELTA! |
239 | } |
267 | } |
240 | if ($type == 7/*OBJ_REF_DELTA*/) { |
268 | if ($type == 7/*OBJ_REF_DELTA*/) { |
241 | // "base object name if OBJ_REF_DELTA" |
269 | // "base object name if OBJ_REF_DELTA" |
242 | $delta_info = bin2hex(fread($fp,20)); |
270 | $delta_info = bin2hex(fread($fp, 20)); |
243 | if ($debug) echo "Delta base object name: $delta_info\n"; |
271 | if ($debug) echo "Delta base object name: $delta_info\n"; |
244 | throw new Exception("OBJ_REF_DELTA is currently not implemented"); // TODO! Implement OBJ_REF_DELTA! |
272 | throw new Exception("OBJ_REF_DELTA is currently not implemented"); // TODO! Implement OBJ_REF_DELTA! |
245 | } |
273 | } |
246 | 274 | ||
247 | // Read and uncompress the compressed data |
275 | // Read and uncompress the compressed data |
248 | $compressed = ''; |
276 | $compressed = ''; |
249 | $uncompressed = false; |
277 | $uncompressed = false; |
250 | for ($compressed_size=1; $compressed_size<=32768*$size; $compressed_size++) { |
278 | for ($compressed_size = 1; $compressed_size <= 32768 * $size; $compressed_size++) { |
251 | // Since we don't know the compressed size, we need to do trial and error |
279 | // Since we don't know the compressed size, we need to do trial and error |
252 | // TODO: this is a super stupid algorithm! Is there a better way??? |
280 | // TODO: this is a super stupid algorithm! Is there a better way??? |
253 | $compressed .= fread($fp,1); |
281 | $compressed .= fread($fp, 1); |
254 | $uncompressed = @gzuncompress($compressed); |
282 | $uncompressed = @gzuncompress($compressed); |
255 | if (strlen($uncompressed) === $size) { |
283 | if (strlen($uncompressed) === $size) { |
256 | if ($debug) echo "Detected compressed size = $compressed_size\n"; |
284 | if ($debug) echo "Detected compressed size = $compressed_size\n"; |
257 | break; |
285 | break; |
258 | } |
286 | } |