PHP ElggFile::detectMimeType方法代码示例

 /**
  * @group FileService
  */
 public function testCanDetectMimeType()
 {
     $mime = $this->file->detectMimeType(null, 'text/plain');
     // mime should not be null if default is set
     $this->assertNotNull($mime);
     // mime of a file object should match mime of a file path that represents this file on filestore
     $resource_mime = $this->file->detectMimeType($this->file->getFilenameOnFilestore(), 'text/plain');
     $this->assertEquals($mime, $resource_mime);
     // calling detectMimeType statically raises strict policy warning
     // @todo: remove this once a new static method has been implemented
     error_reporting(E_ALL & ~E_STRICT & ~E_DEPRECATED);
     // method output should not differ between a static and a concrete call if the file path is set
     $resource_mime_static = \ElggFile::detectMimeType($this->file->getFilenameOnFilestore(), 'text/plain');
     $this->assertEquals($resource_mime, $resource_mime_static);
 }

/**
 * Fix mime
 * 
 * @param ElggFile $file File entity
 * @return string
 */
function elgg_file_viewer_get_mime_type($file)
{
    if (!$file instanceof ElggFile) {
        return 'application/otcet-stream';
    }
    return $file->detectMimeType();
}

 function testDetectMimeType()
 {
     $user = $this->createTestUser();
     $file = new \ElggFile();
     $file->owner_guid = $user->guid;
     $file->setFilename('testing/filestore.txt');
     $file->open('write');
     $file->write('Testing!');
     $file->close();
     $mime = $file->detectMimeType(null, 'text/plain');
     // mime should not be null if default is set
     $this->assertTrue(isset($mime));
     // mime of a file object should match mime of a file path that represents this file on filestore
     $resource_mime = $file->detectMimeType($file->getFilenameOnFilestore(), 'text/plain');
     $this->assertIdentical($mime, $resource_mime);
     // calling detectMimeType statically raises strict policy warning
     // @todo: remove this once a new static method has been implemented
     error_reporting(E_ALL & ~E_STRICT & ~E_DEPRECATED);
     // method output should not differ between a static and a concrete call if the file path is set
     $resource_mime_static = \ElggFile::detectMimeType($file->getFilenameOnFilestore(), 'text/plain');
     $this->assertIdentical($resource_mime, $resource_mime_static);
     error_reporting(E_ALL);
     $user->delete();
 }

     }
     // use same filename on the disk - ensures thumbnails are overwritten
     $filestorename = $file->getFilename();
     $filestorename = elgg_substr($filestorename, elgg_strlen($prefix));
 } else {
     $filestorename = elgg_strtolower(time() . $_FILES['upload']['name']);
 }
 $file->setFilename($prefix . $filestorename);
 /*$indexOfExt = strrpos($_FILES['upload']['name'], ".") + 1;
 	$ext = substr($_FILES['upload']['name'],$indexOfExt);
 	error_log($ext);*/
 $ext = pathinfo($_FILES['upload']['name'], PATHINFO_EXTENSION);
 if ($ext == "ppt") {
     $mime_type = 'application/vnd.ms-powerpoint';
 } else {
     $mime_type = ElggFile::detectMimeType($_FILES['upload']['tmp_name'], $_FILES['upload']['type'], $_FILES['upload']['name']);
 }
 // hack for Microsoft zipped formats
 $info = pathinfo($_FILES['upload']['name']);
 $office_formats = array('docx', 'xlsx', 'pptx');
 if ($mime_type == "application/zip" && in_array($info['extension'], $office_formats)) {
     switch ($info['extension']) {
         case 'docx':
             $mime_type = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
             break;
         case 'xlsx':
             $mime_type = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
             break;
         case 'pptx':
             $mime_type = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
             break;

/**
 *
 * upload attachments for a project
 * @param ElggEntity 
 *
*/
function projects_upload_attachments($attachments, $project)
{
    $count = count($attachments['name']);
    for ($i = 0; $i < $count; $i++) {
        if ($attachments['error'][$i] || !$attachments['name'][$i]) {
            continue;
        }
        $name = $attachments['name'][$i];
        $file = new ElggFile();
        $file->container_guid = $project->guid;
        $file->title = $name;
        $file->access_id = (int) $project->access_id;
        $prefix = "file/";
        $filestorename = elgg_strtolower(time() . $name);
        $file->setFilename($prefix . $filestorename);
        $file->open("write");
        $file->close();
        move_uploaded_file($attachments['tmp_name'][$i], $file->getFilenameOnFilestore());
        $saved = $file->save();
        if ($saved) {
            $mime_type = ElggFile::detectMimeType($attachments['tmp_name'][$i], $attachments['type'][$i]);
            $info = pathinfo($name);
            $office_formats = array('docx', 'xlsx', 'pptx');
            if ($mime_type == "application/zip" && in_array($info['extension'], $office_formats)) {
                switch ($info['extension']) {
                    case 'docx':
                        $mime_type = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
                        break;
                    case 'xlsx':
                        $mime_type = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                        break;
                    case 'pptx':
                        $mime_type = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
                        break;
                }
            }
            // check for bad ppt detection
            if ($mime_type == "application/vnd.ms-office" && $info['extension'] == "ppt") {
                $mime_type = "application/vnd.ms-powerpoint";
            }
            //add_metastring("projectId");
            //$file->projectId = $project_guid;
            $file->setMimeType($mime_type);
            $file->originalfilename = $name;
            if (elgg_is_active_plugin('file')) {
                $file->simpletype = file_get_simple_type($mime_type);
            }
            $saved = $file->save();
            if ($saved) {
                $file->addRelationship($project->guid, 'attachment');
            }
        }
    }
}

/**
 * Unzip an uploaded zip file
 *
 * @param array $file           the $_FILES information
 * @param int   $container_guid the container to put the files/folders under
 * @param int   $parent_guid    the parrent folder
 *
 * @return bool
 */
function file_tools_unzip($file, $container_guid, $parent_guid = 0)
{
    $container_guid = (int) $container_guid;
    $parent_guid = (int) $parent_guid;
    if (empty($file) || empty($container_guid)) {
        return false;
    }
    $container_entity = get_entity($container_guid);
    if (empty($container_entity)) {
        return false;
    }
    $extracted = false;
    $allowed_extensions = file_tools_allowed_extensions();
    $zipfile = elgg_extract('tmp_name', $file);
    $access_id = get_input('access_id', false);
    if ($access_id === false) {
        $parent_folder = get_entity($parent_guid);
        if (elgg_instanceof($parent_folder, 'object', FILE_TOOLS_SUBTYPE)) {
            $access_id = $parent_folder->access_id;
        } else {
            if ($container_entity instanceof ElggGroup) {
                $access_id = $container_entity->group_acl;
            } else {
                $access_id = get_default_access($container_entity);
            }
        }
    }
    // open the zip file
    $zip = zip_open($zipfile);
    while ($zip_entry = zip_read($zip)) {
        // open the zip entry
        zip_entry_open($zip, $zip_entry);
        // set some variables
        $zip_entry_name = zip_entry_name($zip_entry);
        $filename = basename($zip_entry_name);
        // check for folder structure
        if (strlen($zip_entry_name) != strlen($filename)) {
            // there is a folder structure, check it and create missing items
            file_tools_create_folders($zip_entry, $container_guid, $parent_guid);
        }
        // extract the folder structure from the zip entry
        $folder_array = explode('/', $zip_entry_name);
        $parent = $parent_guid;
        foreach ($folder_array as $folder) {
            $folder = utf8_encode($folder);
            $entity = file_tools_check_foldertitle_exists($folder, $container_guid, $parent);
            if (!empty($entity)) {
                $parent = $entity->getGUID();
            } else {
                if ($folder !== end($folder_array)) {
                    continue;
                }
                $prefix = 'file/';
                $extension_array = explode('.', $folder);
                $file_extension = end($extension_array);
                if (!in_array(strtolower($file_extension), $allowed_extensions)) {
                    continue;
                }
                $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
                $filestorename = elgg_strtolower(time() . $folder);
                // create the file
                $filehandler = new ElggFile();
                $filehandler->setFilename($prefix . $filestorename);
                $filehandler->title = $folder;
                $filehandler->originalfilename = $folder;
                $filehandler->owner_guid = elgg_get_logged_in_user_guid();
                $filehandler->container_guid = $container_guid;
                $filehandler->access_id = $access_id;
                if (!$filehandler->save()) {
                    continue;
                }
                $filehandler->open('write');
                $filehandler->write($buf);
                $filehandler->close();
                $mime_type = $filehandler->detectMimeType($filehandler->getFilenameOnFilestore());
                // hack for Microsoft zipped formats
                $info = pathinfo($folder);
                $office_formats = ['docx', 'xlsx', 'pptx'];
                if ($mime_type == 'application/zip' && in_array($info['extension'], $office_formats)) {
                    switch ($info['extension']) {
                        case 'docx':
                            $mime_type = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document';
                            break;
                        case 'xlsx':
                            $mime_type = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet';
                            break;
                        case 'pptx':
                            $mime_type = 'application/vnd.openxmlformats-officedocument.presentationml.presentation';
                            break;
                    }
                }
//.........这里部分代码省略.........

function file_tools_get_mimetype($tmp_file, $mime_type)
{
    $mime_type = ElggFile::detectMimeType($tmp_file, $mime_type);
    $info = pathinfo($tmp_file);
    $office_formats = array('docx', 'xlsx', 'pptx');
    if ($mime_type == "application/zip" && in_array($info['extension'], $office_formats)) {
        switch ($info['extension']) {
            case 'docx':
                $mime_type = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
                break;
            case 'xlsx':
                $mime_type = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                break;
            case 'pptx':
                $mime_type = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
                break;
        }
    }
    // check for bad ppt detection
    if ($mime_type == "application/vnd.ms-office" && $info['extension'] == "ppt") {
        $mime_type = "application/vnd.ms-powerpoint";
    }
    return $mime_type;
}

 public function updateFile($file, $params = array())
 {
     if (!$file->canEdit()) {
         return true;
     }
     if ($params['title']) {
         $file->title = $params['title'];
     }
     if (isset($params['access_id'])) {
         $file->access_id = $params['access_id'];
     }
     if (isset($params['write_access_id'])) {
         $file->write_access_id = $params['write_access_id'];
     } else {
         $file->write_access_id = ACCESS_PRIVATE;
     }
     if ($params['tags']) {
         $file->tags = $params['tags'];
     }
     if ($params['stream']) {
         $file->originalfilename = $params['filename'];
         // Open the file to guarantee the directory exists
         $file->open("write");
         $file->close();
         file_put_contents($file->getFilenameOnFilestore(), $params['stream']);
         $mime_type = ElggFile::detectMimeType($file->getFilenameOnFilestore(), $params['type']);
         $file->setMimeType($mime_type);
         $file->simpletype = file_get_simple_type($mime_type);
         pleiofile_generate_file_thumbs($file);
     }
     $result = $file->save();
     if ($params['parent_guid'] != $file->parent_guid) {
         $new_parent = get_entity($params['parent_guid']);
         remove_entity_relationships($file->guid, "folder_of", true);
         if ($new_parent instanceof ElggObject) {
             add_entity_relationship($new_parent->guid, "folder_of", $file->guid);
         }
     }
     return $result;
 }

 /**
  * Returns an ElggFile containing the entity icon
  *
  * @param \ElggEntity $entity Entity
  * @param string      $size   Size
  * @return \ElggFile
  */
 public function getIconFile(\ElggEntity $entity, $size = '')
 {
     $dir = $this->getIconDirectory($entity, $size);
     $filename = $this->getIconFilename($entity, $size);
     $file = new \ElggFile();
     $file->owner_guid = $entity instanceof \ElggUser ? $entity->guid : $entity->owner_guid;
     $file->setFilename("{$dir}/{$filename}");
     if (!file_exists($file->getFilenameOnFilestore())) {
         $file->open('write');
         $file->close();
     }
     $file->mimetype = $file->detectMimeType();
     return $file;
 }

/**
 * Send a message to specified recipients
 *
 * @param int $sender_guid GUID of the sender entity
 * @param array $recipient_guids An array of recipient GUIDs
 * @param str $subject Subject of the message
 * @param str $message Body of the message
 * @param str $message_type Type of the message
 * @param array $params Additional parameters, e.g. 'message_hash', 'attachments'
 * @return boolean
 */
function hj_inbox_send_message($sender_guid, $recipient_guids, $subject = '', $message = '', $message_type = '', array $params = array())
{
    $ia = elgg_set_ignore_access();
    if (!is_array($recipient_guids)) {
        $recipient_guids = array($recipient_guids);
    }
    if (isset($params['message_hash'])) {
        $message_hash = elgg_extract('message_hash', $params);
    }
    if (isset($params['attachments'])) {
        $attachments = elgg_extract('attachments', $params);
    }
    $user_guids = $recipient_guids;
    $user_guids[] = $sender_guid;
    sort($user_guids);
    if (!$message_hash) {
        $title = strtolower($subject);
        $title = trim(str_replace('re:', '', $title));
        $message_hash = sha1(implode(':', $user_guids) . $title);
    }
    $acl_hash = sha1(implode(':', $user_guids));
    $dbprefix = elgg_get_config('dbprefix');
    $query = "SELECT * FROM {$dbprefix}access_collections WHERE name = '{$acl_hash}'";
    $collection = get_data_row($query);
    //error_log(print_r($collection, true));
    $acl_id = $collection->id;
    if (!$acl_id) {
        $site = elgg_get_site_entity();
        $acl_id = create_access_collection($acl_hash, $site->guid);
        update_access_collection($acl_id, $user_guids);
    }
    //error_log($acl_id);
    $message_sent = new ElggObject();
    $message_sent->subtype = "messages";
    $message_sent->owner_guid = $sender_guid;
    $message_sent->container_guid = $sender_guid;
    $message_sent->access_id = ACCESS_PRIVATE;
    $message_sent->title = $subject;
    $message_sent->description = $message;
    $message_sent->toId = $recipient_guids;
    // the users receiving the message
    $message_sent->fromId = $sender_guid;
    // the user sending the message
    $message_sent->readYet = 1;
    // this is a toggle between 0 / 1 (1 = read)
    $message_sent->hiddenFrom = 0;
    // this is used when a user deletes a message in their sentbox, it is a flag
    $message_sent->hiddenTo = 0;
    // this is used when a user deletes a message in their inbox
    $message_sent->msg = 1;
    $message_sent->msgType = $message_type;
    $message_sent->msgHash = $message_hash;
    $message_sent->save();
    if ($attachments) {
        $count = count($attachments['name']);
        for ($i = 0; $i < $count; $i++) {
            if ($attachments['error'][$i] || !$attachments['name'][$i]) {
                continue;
            }
            $name = $attachments['name'][$i];
            $file = new ElggFile();
            $file->container_guid = $message_sent->guid;
            $file->title = $name;
            $file->access_id = (int) $acl_id;
            $prefix = "file/";
            $filestorename = elgg_strtolower(time() . $name);
            $file->setFilename($prefix . $filestorename);
            $file->open("write");
            $file->close();
            move_uploaded_file($attachments['tmp_name'][$i], $file->getFilenameOnFilestore());
            $saved = $file->save();
            if ($saved) {
                $mime_type = ElggFile::detectMimeType($attachments['tmp_name'][$i], $attachments['type'][$i]);
                $info = pathinfo($name);
                $office_formats = array('docx', 'xlsx', 'pptx');
                if ($mime_type == "application/zip" && in_array($info['extension'], $office_formats)) {
                    switch ($info['extension']) {
                        case 'docx':
                            $mime_type = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
                            break;
                        case 'xlsx':
                            $mime_type = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                            break;
                        case 'pptx':
                            $mime_type = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
                            break;
                    }
                }
                // check for bad ppt detection
//.........这里部分代码省略.........

 /**
  * Create icons for an entity
  *
  * @param ElggEntity $entity  Entity
  * @param mixed      $source  ElggFile, or path, or temp storage to be used as a source for icons
  * @param array      $options Additional options
  *                            'icon_sizes'            Additional icon sizes to create
  *                            'icon_filestore_prefix' Prefix of cropped/resizes icon sizes on the filestore
  *                            'coords'                Cropping coords
  * @return ElggFile[]|false Created icons
  */
 public function create(ElggEntity $entity, $source = null, array $options = array())
 {
     if (!$entity instanceof ElggEntity) {
         return false;
     }
     if (!$source) {
         $source = $entity;
     }
     if ($source instanceof ElggFile) {
         $source = $source->getFilenameOnFilestore();
     }
     if (empty($source) || !file_exists($source)) {
         return false;
     }
     $coords = elgg_extract('coords', $options, false);
     $dir = $this->getIconDirectory($entity, elgg_extract('icon_filestore_prefix', $options));
     $entity->icon_mimetype = \ElggFile::detectMimeType($source, 'image/jpeg');
     $entity->icon_directory = $dir;
     // reset
     unset($entity->icontime);
     foreach (array('x1', 'x2', 'y1', 'y2') as $coord) {
         unset($entity->{$coord});
     }
     $error = false;
     $icons = array();
     $icons_meta = array();
     $icon_sizes = $this->getSizes($entity, elgg_extract('icon_sizes', $options, array()));
     foreach ($icon_sizes as $size => $props) {
         if (!isset($props['croppable'])) {
             $props['croppable'] = in_array($size, $this->config->getCroppableSizes());
         }
         if (is_array($coords) && !isset($coords['master_width'])) {
             $coords['master_width'] = $this->config->get('master_size_length');
             $coords['master_height'] = $this->config->get('master_size_length');
         }
         try {
             $icon = $this->getIconFile($entity, $size);
             $image = new Image($source);
             $image->resize($props, $coords);
             $image->save($icon->getFilenameOnFilestore(), $this->config->getIconCompressionOpts());
             $icons[$size] = $icon;
             if (isset($props['metadata_name'])) {
                 $metadata_name = $props['metadata_name'];
                 $icons_meta[$metadata_name] = $icon->getFilename();
             }
         } catch (Exception $ex) {
             elgg_log($ex->getMessage(), 'ERROR');
             $error = true;
         }
     }
     if ($error) {
         foreach ($icons as $icon) {
             $icon->delete();
         }
         return false;
     }
     if (!$entity instanceof ElggFile) {
         // store the original icon source file
         $src = $this->getIconFile($entity);
         $srcimg = new Image($source);
         $srcimg->save($src->getFilenameOnFilestore(), $this->config->getSrcCompressionOpts());
     }
     if (is_array($coords)) {
         // store cropping coordinates
         foreach ($coords as $coord => $value) {
             $entity->{$coord} = $value;
         }
     }
     foreach ($icons_meta as $name => $value) {
         $entity->{$name} = $value;
     }
     $entity->icontime = time();
     return $icons;
 }

/**
 * @param $title
 * @param $description
 * @param $username
 * @param $access
 * @param $tags
 * @return array
 * @throws InvalidParameterException
 * @internal param $guid
 * @internal param $size
 */
function file_save_post($title, $description, $username, $access, $tags)
{
    $return = array();
    if (!$username) {
        $user = elgg_get_logged_in_user_entity();
    } else {
        $user = get_user_by_username($username);
        if (!$user) {
            throw new InvalidParameterException('registration:usernamenotvalid');
        }
    }
    $loginUser = elgg_get_logged_in_user_entity();
    $container_guid = $loginUser->guid;
    if ($access == 'ACCESS_FRIENDS') {
        $access_id = -2;
    } elseif ($access == 'ACCESS_PRIVATE') {
        $access_id = 0;
    } elseif ($access == 'ACCESS_LOGGED_IN') {
        $access_id = 1;
    } elseif ($access == 'ACCESS_PUBLIC') {
        $access_id = 2;
    } else {
        $access_id = -2;
    }
    $file = $_FILES["upload"];
    if (empty($file)) {
        $response['status'] = 1;
        $response['result'] = elgg_echo("file:blank");
        return $response;
    }
    $new_file = true;
    if ($new_file) {
        $file = new ElggFile();
        $file->subtype = "file";
        // if no title on new upload, grab filename
        if (empty($title)) {
            $title = htmlspecialchars($_FILES['upload']['name'], ENT_QUOTES, 'UTF-8');
        }
    }
    $file->title = $title;
    $file->description = $description;
    $file->access_id = $access_id;
    $file->container_guid = $container_guid;
    $file->tags = string_to_tag_array($tags);
    // we have a file upload, so process it
    if (isset($_FILES['upload']['name']) && !empty($_FILES['upload']['name'])) {
        $prefix = "file/";
        $filestorename = elgg_strtolower(time() . $_FILES['upload']['name']);
        $file->setFilename($prefix . $filestorename);
        $file->originalfilename = $_FILES['upload']['name'];
        $mime_type = $file->detectMimeType($_FILES['upload']['tmp_name'], $_FILES['upload']['type']);
        $file->setMimeType($mime_type);
        $file->simpletype = elgg_get_file_simple_type($mime_type);
        // Open the file to guarantee the directory exists
        $file->open("write");
        $file->close();
        move_uploaded_file($_FILES['upload']['tmp_name'], $file->getFilenameOnFilestore());
        $fileSaved = $file->save();
        // if image, we need to create thumbnails (this should be moved into a function)
        if ($fileSaved && $file->simpletype == "image") {
            $file->icontime = time();
            $thumbnail = get_resized_image_from_existing_file($file->getFilenameOnFilestore(), 60, 60, true);
            if ($thumbnail) {
                $thumb = new ElggFile();
                $thumb->setMimeType($_FILES['upload']['type']);
                $thumb->setFilename($prefix . "thumb" . $filestorename);
                $thumb->open("write");
                $thumb->write($thumbnail);
                $thumb->close();
                $file->thumbnail = $prefix . "thumb" . $filestorename;
                unset($thumbnail);
            }
            $thumbsmall = get_resized_image_from_existing_file($file->getFilenameOnFilestore(), 153, 153, true);
            if ($thumbsmall) {
                $thumb->setFilename($prefix . "smallthumb" . $filestorename);
                $thumb->open("write");
                $thumb->write($thumbsmall);
                $thumb->close();
                $file->smallthumb = $prefix . "smallthumb" . $filestorename;
                unset($thumbsmall);
            }
            $thumblarge = get_resized_image_from_existing_file($file->getFilenameOnFilestore(), 600, 600, false);
            if ($thumblarge) {
                $thumb->setFilename($prefix . "largethumb" . $filestorename);
                $thumb->open("write");
                $thumb->write($thumblarge);
                $thumb->close();
                $file->largethumb = $prefix . "largethumb" . $filestorename;
                unset($thumblarge);
//.........这里部分代码省略.........

/**
 * Process uploaded files
 *
 * @param mixed $files		Uploaded files
 * @param mixed $entity		If an entity is set and it doesn't belong to one of the file subtypes, uploaded files will be converted into hjFile objects and attached to the entity
 * @return void
 */
function hj_framework_process_file_upload($name, $entity = null)
{
    // Normalize the $_FILES array
    if (is_array($_FILES[$name]['name'])) {
        $files = hj_framework_prepare_files_global($_FILES);
        $files = $files[$name];
    } else {
        $files = $_FILES[$name];
        $files = array($files);
    }
    if (elgg_instanceof($entity)) {
        if (!$entity instanceof hjFile) {
            $is_attachment = true;
        }
        $subtype = $entity->getSubtype();
    }
    foreach ($files as $file) {
        if (!is_array($file) || $file['error']) {
            continue;
        }
        if ($is_attachment) {
            $filehandler = new hjFile();
        } else {
            $filehandler = new hjFile($entity->guid);
        }
        $prefix = 'hjfile/';
        if ($entity instanceof hjFile) {
            $filename = $filehandler->getFilenameOnFilestore();
            if (file_exists($filename)) {
                unlink($filename);
            }
            $filestorename = $filehandler->getFilename();
            $filestorename = elgg_substr($filestorename, elgg_strlen($prefix));
        } else {
            $filestorename = elgg_strtolower(time() . $file['name']);
        }
        $filehandler->setFilename($prefix . $filestorename);
        $filehandler->title = $file['name'];
        $mime_type = ElggFile::detectMimeType($file['tmp_name'], $file['type']);
        // hack for Microsoft zipped formats
        $info = pathinfo($file['name']);
        $office_formats = array('docx', 'xlsx', 'pptx');
        if ($mime_type == "application/zip" && in_array($info['extension'], $office_formats)) {
            switch ($info['extension']) {
                case 'docx':
                    $mime_type = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
                    break;
                case 'xlsx':
                    $mime_type = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                    break;
                case 'pptx':
                    $mime_type = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
                    break;
            }
        }
        // check for bad ppt detection
        if ($mime_type == "application/vnd.ms-office" && $info['extension'] == "ppt") {
            $mime_type = "application/vnd.ms-powerpoint";
        }
        $filehandler->setMimeType($mime_type);
        $filehandler->originalfilename = $file['name'];
        $filehandler->simpletype = hj_framework_get_simple_type($mime_type);
        $filehandler->filesize = $file['size'];
        $filehandler->open("write");
        $filehandler->close();
        move_uploaded_file($file['tmp_name'], $filehandler->getFilenameOnFilestore());
        if ($filehandler->save()) {
            if ($is_attachment && elgg_instanceof($entity)) {
                make_attachment($entity->guid, $filehandler->getGUID());
            }
            // Generate icons for images
            if ($filehandler->simpletype == "image") {
                if (!elgg_instanceof($entity) || $is_attachment) {
                    // no entity provided or this is an attachment generating icons for self
                    hj_framework_generate_entity_icons($filehandler, $filehandler);
                } else {
                    if (elgg_instanceof($entity)) {
                        hj_framework_generate_entity_icons($entity, $filehandler);
                    }
                }
                // the settings tell us not to keep the original image file, so downsizing to master
                if (!HYPEFRAMEWORK_FILES_KEEP_ORIGINALS) {
                    $icon_sizes = hj_framework_get_thumb_sizes($subtype);
                    $values = $icon_sizes['master'];
                    $master = get_resized_image_from_existing_file($filehandler->getFilenameOnFilestore(), $values['w'], $values['h'], $values['square'], 0, 0, 0, 0, $values['upscale']);
                    $filehandler->open('write');
                    $filehandler->write($master);
                    $filehandler->close();
                }
            }
            $return[$file['name']] = $filehandler->getGUID();
        } else {
            $return[$file['name']] = false;
//.........这里部分代码省略.........

 /**
  * Returns an ElggFile containing the entity icon
  *
  * @param \ElggEntity $entity Entity
  * @param string      $size   Size
  * @return \ElggFile
  */
 public function getIconFile(\ElggEntity $entity, $size = '')
 {
     $dir = $this->getIconDirectory($entity, $size);
     $filename = $this->getIconFilename($entity, $size);
     if ($entity instanceof \ElggUser) {
         $owner_guid = $entity->guid;
     } else {
         if ($entity->owner_guid) {
             $owner_guid = $entity->owner_guid;
         } else {
             $owner_guid = elgg_get_site_entity();
         }
     }
     $file = new \ElggFile();
     $file->owner_guid = $owner_guid;
     $file->setFilename("{$dir}/{$filename}");
     $file->mimetype = $file->detectMimeType();
     return $file;
 }

 public function createFile($path = array(), $filename = "", $filestream = false, $access_id = 0)
 {
     if (!isset($filename)) {
         if (count($path) < 1) {
             throw new Exception('Path length must be at least one.');
         }
         if (count($path) == 1) {
             $parent = $this->container;
         } else {
             $parent_guid = array_slice($path, -2)[0];
             $parent = get_entity($parent_guid);
         }
         $filename = array_slice($path, -1)[0];
     } else {
         if (count($path) == 0) {
             $parent = $this->container;
         } else {
             $parent_guid = array_slice($path, -1)[0];
             $parent = get_entity($parent_guid);
         }
     }
     if (!$parent | !$parent->canWriteToContainer()) {
         return false;
     }
     if (!$access_id) {
         if ($parent instanceof ElggObject) {
             // lower level folder
             $access_id = $parent->access_id;
         } elseif ($parent instanceof ElggGroup) {
             // top level folder
             $access_id = $parent->group_acl;
         } else {
             throw new Exception('Invalid container.');
         }
     }
     $file = new FilePluginFile();
     $file->subtype = "file";
     $file->title = $filename;
     $file->access_id = $access_id;
     $file->container_guid = $this->container->guid;
     $filestorename = elgg_strtolower(time() . $filename);
     $file->setFilename("file/" . $filestorename);
     $file->originalfilename = $filename;
     if ($filestream) {
         file_put_contents($file->getFilenameOnFilestore(), $filestream);
     } else {
         $input = fopen("php://input", "r");
         file_put_contents($file->getFilenameOnFilestore(), $input);
     }
     $mime_type = ElggFile::detectMimeType($file->getFilenameOnFilestore(), mime_content_type($filename));
     $file->setMimeType($mime_type);
     $file->simpletype = file_get_simple_type($mime_type);
     $file->save();
     if ($file->simpletype == "image") {
         $file->icontime = time();
         $thumbnail = get_resized_image_from_existing_file($file->getFilenameOnFilestore(), 60, 60, true);
         if ($thumbnail) {
             $thumb = new ElggFile();
             $thumb->setMimeType($_FILES['upload']['type']);
             $thumb->setFilename($prefix . "thumb" . $filestorename);
             $thumb->open("write");
             $thumb->write($thumbnail);
             $thumb->close();
             $file->thumbnail = $prefix . "thumb" . $filestorename;
             unset($thumbnail);
         }
         $thumbsmall = get_resized_image_from_existing_file($file->getFilenameOnFilestore(), 153, 153, true);
         if ($thumbsmall) {
             $thumb->setFilename($prefix . "smallthumb" . $filestorename);
             $thumb->open("write");
             $thumb->write($thumbsmall);
             $thumb->close();
             $file->smallthumb = $prefix . "smallthumb" . $filestorename;
             unset($thumbsmall);
         }
         $thumblarge = get_resized_image_from_existing_file($file->getFilenameOnFilestore(), 600, 600, false);
         if ($thumblarge) {
             $thumb->setFilename($prefix . "largethumb" . $filestorename);
             $thumb->open("write");
             $thumb->write($thumblarge);
             $thumb->close();
             $file->largethumb = $prefix . "largethumb" . $filestorename;
             unset($thumblarge);
         }
     }
     if ($parent != $this->container && $parent instanceof ElggObject) {
         add_entity_relationship($parent->guid, FILE_TOOLS_RELATIONSHIP, $file->guid);
     }
 }