本文整理汇总了PHP中stored_file::set_missingsource方法的典型用法代码示例。如果您正苦于以下问题:PHP stored_file::set_missingsource方法的具体用法?PHP stored_file::set_missingsource怎么用?PHP stored_file::set_missingsource使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类stored_file
的用法示例。
在下文中一共展示了stored_file::set_missingsource方法的6个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: sync_reference
/**
* Performs synchronisation of an external file if the previous one has expired.
*
* This function must be implemented for external repositories supporting
* FILE_REFERENCE, it is called for existing aliases when their filesize,
* contenthash or timemodified are requested. It is not called for internal
* repositories (see {@link repository::has_moodle_files()}), references to
* internal files are updated immediately when source is modified.
*
* Referenced files may optionally keep their content in Moodle filepool (for
* thumbnail generation or to be able to serve cached copy). In this
* case both contenthash and filesize need to be synchronized. Otherwise repositories
* should use contenthash of empty file and correct filesize in bytes.
*
* Note that this function may be run for EACH file that needs to be synchronised at the
* moment. If anything is being downloaded or requested from external sources there
* should be a small timeout. The synchronisation is performed to update the size of
* the file and/or to update image and re-generated image preview. There is nothing
* fatal if syncronisation fails but it is fatal if syncronisation takes too long
* and hangs the script generating a page.
*
* Note: If you wish to call $file->get_filesize(), $file->get_contenthash() or
* $file->get_timemodified() make sure that recursion does not happen.
*
* Called from {@link stored_file::sync_external_file()}
*
* @uses stored_file::set_missingsource()
* @uses stored_file::set_synchronized()
* @param stored_file $file
* @return bool false when file does not need synchronisation, true if it was synchronised
*/
public function sync_reference(stored_file $file)
{
if ($file->get_repository_id() != $this->id) {
// This should not really happen because the function can be called from stored_file only.
return false;
}
if ($this->has_moodle_files()) {
// References to local files need to be synchronised only once.
// Later they will be synchronised automatically when the source is changed.
if ($file->get_referencelastsync()) {
return false;
}
$fs = get_file_storage();
$params = file_storage::unpack_reference($file->get_reference(), true);
if (!is_array($params) || !($storedfile = $fs->get_file($params['contextid'], $params['component'], $params['filearea'], $params['itemid'], $params['filepath'], $params['filename']))) {
$file->set_missingsource();
} else {
$file->set_synchronized($storedfile->get_contenthash(), $storedfile->get_filesize(), 0, $storedfile->get_timemodified());
}
return true;
}
return false;
}
示例2: sync_reference
public function sync_reference(stored_file $file)
{
global $CFG;
if ($file->get_referencelastsync() + DAYSECS > time()) {
// Synchronise not more often than once a day.
return false;
}
$ref = unserialize($file->get_reference());
if (!isset($ref->url)) {
// this is an old-style reference in DB. We need to fix it
$ref = unserialize($this->fix_old_style_reference($file->get_reference()));
}
if (!isset($ref->url)) {
return false;
}
$c = new curl();
$url = $this->get_file_download_link($ref->url);
if (file_extension_in_typegroup($ref->path, 'web_image')) {
$saveas = $this->prepare_file('');
try {
$result = $c->download_one($url, array(), array('filepath' => $saveas, 'timeout' => $CFG->repositorysyncimagetimeout, 'followlocation' => true));
$info = $c->get_info();
if ($result === true && isset($info['http_code']) && $info['http_code'] == 200) {
$fs = get_file_storage();
list($contenthash, $filesize, $newfile) = $fs->add_file_to_pool($saveas);
$file->set_synchronized($contenthash, $filesize);
return true;
}
} catch (Exception $e) {
}
}
$c->get($url, null, array('timeout' => $CFG->repositorysyncimagetimeout, 'followlocation' => true, 'nobody' => true));
$info = $c->get_info();
if (isset($info['http_code']) && $info['http_code'] == 200 && array_key_exists('download_content_length', $info) && $info['download_content_length'] >= 0) {
$filesize = (int) $info['download_content_length'];
$file->set_synchronized(null, $filesize);
return true;
}
$file->set_missingsource();
return true;
}
示例3: sync_reference
/**
* Performs synchronisation of an external file if the previous one has expired.
*
* This function must be implemented for external repositories supporting
* FILE_REFERENCE, it is called for existing aliases when their filesize,
* contenthash or timemodified are requested. It is not called for internal
* repositories (see {@link repository::has_moodle_files()}), references to
* internal files are updated immediately when source is modified.
*
* Referenced files may optionally keep their content in Moodle filepool (for
* thumbnail generation or to be able to serve cached copy). In this
* case both contenthash and filesize need to be synchronized. Otherwise repositories
* should use contenthash of empty file and correct filesize in bytes.
*
* Note that this function may be run for EACH file that needs to be synchronised at the
* moment. If anything is being downloaded or requested from external sources there
* should be a small timeout. The synchronisation is performed to update the size of
* the file and/or to update image and re-generated image preview. There is nothing
* fatal if syncronisation fails but it is fatal if syncronisation takes too long
* and hangs the script generating a page.
*
* Note: If you wish to call $file->get_filesize(), $file->get_contenthash() or
* $file->get_timemodified() make sure that recursion does not happen.
*
* Called from {@link stored_file::sync_external_file()}
*
* @uses stored_file::set_missingsource()
* @uses stored_file::set_synchronized()
* @param stored_file $file
* @return bool false when file does not need synchronisation, true if it was synchronised
*/
public function sync_reference(stored_file $file) {
if ($file->get_repository_id() != $this->id) {
// This should not really happen because the function can be called from stored_file only.
return false;
}
if ($this->has_moodle_files()) {
// References to local files need to be synchronised only once.
// Later they will be synchronised automatically when the source is changed.
if ($file->get_referencelastsync()) {
return false;
}
$fs = get_file_storage();
$params = file_storage::unpack_reference($file->get_reference(), true);
if (!is_array($params) || !($storedfile = $fs->get_file($params['contextid'],
$params['component'], $params['filearea'], $params['itemid'], $params['filepath'],
$params['filename']))) {
$file->set_missingsource();
} else {
$file->set_synchronized($storedfile->get_contenthash(), $storedfile->get_filesize());
}
return true;
}
// Backward compatibility (Moodle 2.3-2.5) implementation that calls
// methods repository::get_reference_file_lifetime(), repository::sync_individual_file()
// and repository::get_file_by_reference(). These methods are removed from the
// base repository class but may still be implemented by the child classes.
// THIS IS NOT A GOOD EXAMPLE of implementation. For good examples see the overwriting methods.
if (!method_exists($this, 'get_file_by_reference')) {
// Function get_file_by_reference() is not implemented. No synchronisation.
return false;
}
// Check if the previous sync result is still valid.
if (method_exists($this, 'get_reference_file_lifetime')) {
$lifetime = $this->get_reference_file_lifetime($file->get_reference());
} else {
// Default value that was hardcoded in Moodle 2.3 - 2.5.
$lifetime = 60 * 60 * 24;
}
if (($lastsynced = $file->get_referencelastsync()) && $lastsynced + $lifetime >= time()) {
return false;
}
$cache = cache::make('core', 'repositories');
if (($lastsyncresult = $cache->get('sync:'.$file->get_referencefileid())) !== false) {
if ($lastsyncresult === true) {
// We are in the process of synchronizing this reference.
// Avoid recursion when calling $file->get_filesize() and $file->get_contenthash().
return false;
} else {
// We have synchronised the same reference inside this request already.
// It looks like the object $file was created before the synchronisation and contains old data.
if (!empty($lastsyncresult['missing'])) {
$file->set_missingsource();
} else {
$cache->set('sync:'.$file->get_referencefileid(), true);
if ($file->get_contenthash() != $lastsyncresult['contenthash'] ||
$file->get_filesize() != $lastsyncresult['filesize']) {
$file->set_synchronized($lastsyncresult['contenthash'], $lastsyncresult['filesize']);
}
$cache->set('sync:'.$file->get_referencefileid(), $lastsyncresult);
}
return true;
}
}
//.........这里部分代码省略.........
示例4: sync_reference
/**
* Synchronize the references.
*
* @param stored_file $file Stored file.
* @return boolean
*/
public function sync_reference(stored_file $file)
{
if ($file->get_referencelastsync() + DAYSECS > time()) {
// Synchronise not more often than once a day.
return false;
}
$c = new curl();
$reference = unserialize(self::convert_to_valid_reference($file->get_reference()));
$url = $reference->downloadurl;
if (file_extension_in_typegroup($file->get_filename(), 'web_image')) {
$path = $this->prepare_file('');
$result = $c->download_one($url, null, array('filepath' => $path, 'timeout' => $CFG->repositorysyncimagetimeout));
$info = $c->get_info();
if ($result === true && isset($info['http_code']) && $info['http_code'] == 200) {
$fs = get_file_storage();
list($contenthash, $filesize, $newfile) = $fs->add_file_to_pool($path);
$file->set_synchronized($contenthash, $filesize);
return true;
}
}
$c->get($url, null, array('timeout' => $CFG->repositorysyncimagetimeout, 'followlocation' => true, 'nobody' => true));
$info = $c->get_info();
if (isset($info['http_code']) && $info['http_code'] == 200 && array_key_exists('download_content_length', $info) && $info['download_content_length'] >= 0) {
$filesize = (int) $info['download_content_length'];
$file->set_synchronized(null, $filesize);
return true;
}
$file->set_missingsource();
return true;
}
示例5: sync_reference
public function sync_reference(stored_file $file)
{
if ($file->get_referencelastsync() + 60 > time()) {
// Does not cost us much to synchronise within our own filesystem, check every 1 minute.
return false;
}
static $issyncing = false;
if ($issyncing) {
// Avoid infinite recursion when calling $file->get_filesize() and get_contenthash().
return false;
}
$filepath = $this->get_rootpath() . ltrim($file->get_reference(), '/');
if ($this->is_in_repository($file->get_reference()) && file_exists($filepath) && is_readable($filepath)) {
$fs = get_file_storage();
$issyncing = true;
if (file_extension_in_typegroup($filepath, 'web_image')) {
$contenthash = sha1_file($filepath);
if ($file->get_contenthash() == $contenthash) {
// File did not change since the last synchronisation.
$filesize = filesize($filepath);
} else {
// Copy file into moodle filepool (used to generate an image thumbnail).
list($contenthash, $filesize, $newfile) = $fs->add_file_to_pool($filepath);
}
} else {
// Update only file size so file will NOT be copied into moodle filepool.
$emptyfile = $contenthash = sha1('');
$currentcontenthash = $file->get_contenthash();
if ($currentcontenthash !== $emptyfile && $currentcontenthash === sha1_file($filepath)) {
// File content was synchronised and has not changed since then, leave it.
$contenthash = null;
}
$filesize = filesize($filepath);
}
$issyncing = false;
$file->set_synchronized($contenthash, $filesize);
} else {
$file->set_missingsource();
}
return true;
}
示例6: sync_reference
/**
* Performs synchronisation of an external file if the previous one has expired.
*
* This function must be implemented for external repositories supporting
* FILE_REFERENCE, it is called for existing aliases when their filesize,
* contenthash or timemodified are requested. It is not called for internal
* repositories (see {@link repository::has_moodle_files()}), references to
* internal files are updated immediately when source is modified.
*
* Referenced files may optionally keep their content in Moodle filepool (for
* thumbnail generation or to be able to serve cached copy). In this
* case both contenthash and filesize need to be synchronized. Otherwise repositories
* should use contenthash of empty file and correct filesize in bytes.
*
* Note that this function may be run for EACH file that needs to be synchronised at the
* moment. If anything is being downloaded or requested from external sources there
* should be a small timeout. The synchronisation is performed to update the size of
* the file and/or to update image and re-generated image preview. There is nothing
* fatal if syncronisation fails but it is fatal if syncronisation takes too long
* and hangs the script generating a page.
*
* Note: If you wish to call $file->get_filesize(), $file->get_contenthash() or
* $file->get_timemodified() make sure that recursion does not happen.
*
* Called from {@link stored_file::sync_external_file()}
*
* @inheritDocs
*/
public function sync_reference(stored_file $file)
{
global $CFG;
if ($file->get_referencelastsync() + DAYSECS > time()) {
// Only synchronise once per day.
return false;
}
$reference = $this->unpack_reference($file->get_reference());
if (!isset($reference->url)) {
// The URL to sync with is missing.
return false;
}
$c = new curl();
$url = $this->get_file_download_link($reference->url);
if (file_extension_in_typegroup($reference->path, 'web_image')) {
$saveas = $this->prepare_file('');
try {
$result = $c->download_one($url, [], ['filepath' => $saveas, 'timeout' => $CFG->repositorysyncimagetimeout, 'followlocation' => true]);
$info = $c->get_info();
if ($result === true && isset($info['http_code']) && $info['http_code'] == 200) {
$fs = get_file_storage();
list($contenthash, $filesize, ) = $fs->add_file_to_pool($saveas);
$file->set_synchronized($contenthash, $filesize);
return true;
}
} catch (Exception $e) {
// IF the download_one fails, we will attempt to download
// again with get() anyway.
}
}
$c->get($url, null, array('timeout' => $CFG->repositorysyncimagetimeout, 'followlocation' => true, 'nobody' => true));
$info = $c->get_info();
if (isset($info['http_code']) && $info['http_code'] == 200 && array_key_exists('download_content_length', $info) && $info['download_content_length'] >= 0) {
$filesize = (int) $info['download_content_length'];
$file->set_synchronized(null, $filesize);
return true;
}
$file->set_missingsource();
return true;
}