Channel.php

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<?php
    function __construct($channel_data) {
        $this->chanid       = $channel_data['chanid'];
        $this->channum      = $channel_data['channum'];
        $this->sourceid     = $channel_data['sourceid'];
        $this->callsign     = $channel_data['callsign'];
        $this->name         = $channel_data['name'];
        $this->finetune     = $channel_data['finetune'];
        $this->videofilters = $channel_data['videofilters'];
        $this->xmltvid      = $channel_data['xmltvid'];
        $this->contrast     = $channel_data['contrast'];
        $this->brightness   = $channel_data['brightness'];
        $this->colour       = $channel_data['colour'];
        $this->visible      = $channel_data['visible'];
        $this->icon         = 'data/tv_icons/'.basename($channel_data['icon']);
    // Try to copy over any missing channel icons
        if ($channel_data['icon'] && !file_exists($this->icon)) {
        // Local file?
            if (file_exists($channel_data['icon']))
                copy($channel_data['icon'], $this->icon);
        // Otherwise, grab it from the backend
            else {
            // Get the info we need about the master backend
                $host = $GLOBALS['Master_Host'];
                $port = _or(get_backend_setting('BackendStatusPort', $GLOBALS['Master_Host']),
                            get_backend_setting('BackendStatusPort'));
            // Make the request and store the result
                $data = @file_get_contents("http://$host:$port/Myth/GetChannelIcon"
                                          .'?ChanId='.$this->chanid
                                          );
                if ($data) {
                    $iconfile = fopen($this->icon, 'wb');
                    fwrite($iconfile, $data);
                    fclose($iconfile);
                }
                unset($data);
            }
        }
    // Now that local filesystem checks are done, add the web root to the icon
    // path, or wipe the icon path completely if it still doesn't exist.
        if (is_file($this->icon))
            $this->icon = root . $this->icon;
        else
            $this->icon = null;
    }

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