321 lines
11 KiB
PHP
321 lines
11 KiB
PHP
<?php
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class Event {
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public function __construct( $IdOrRow ) {
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$row = NULL;
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if ( $IdOrRow ) {
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if ( is_integer( $IdOrRow ) or is_numeric( $IdOrRow ) ) {
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$row = dbFetchOne( 'SELECT *,unix_timestamp(StartTime) as Time FROM Events WHERE Id=?', NULL, array( $IdOrRow ) );
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if ( ! $row ) {
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Error('Unable to load Event record for Id=' . $IdOrRow );
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}
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} elseif ( is_array( $IdOrRow ) ) {
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$row = $IdOrRow;
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} else {
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$backTrace = debug_backtrace();
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$file = $backTrace[1]['file'];
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$line = $backTrace[1]['line'];
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Error("Unknown argument passed to Event Constructor from $file:$line)");
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Error("Unknown argument passed to Event Constructor ($IdOrRow)");
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return;
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}
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} # end if isset($IdOrRow)
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if ( $row ) {
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foreach ($row as $k => $v) {
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$this->{$k} = $v;
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}
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} else {
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Error('No row for Event ' . $IdOrRow );
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}
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} // end function __construct
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public function Storage() {
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return new Storage( isset($this->{'StorageId'}) ? $this->{'StorageId'} : NULL );
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}
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public function Monitor() {
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return new Monitor( isset($this->{'MonitorId'}) ? $this->{'MonitorId'} : NULL );
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}
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public function __call( $fn, array $args){
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if ( array_key_exists( $fn, $this ) ) {
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return $this->{$fn};
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#array_unshift($args, $this);
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#call_user_func_array( $this->{$fn}, $args);
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}
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}
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public function Time() {
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if ( ! isset( $this->{'Time'} ) ) {
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$this->{'Time'} = strtotime($this->{'StartTime'});
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}
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return $this->{'Time'};
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}
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public function Path() {
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$Storage = $this->Storage();
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return $Storage->Path().'/'.$this->Relative_Path();
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}
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public function Relative_Path() {
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$event_path = '';
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if ( ZM_USE_DEEP_STORAGE ) {
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$event_path = $this->{'MonitorId'} .'/'.strftime( '%y/%m/%d/%H/%M/%S', $this->Time()) ;
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} else {
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$event_path = $this->{'MonitorId'} .'/'.$this->{'Id'};
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}
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return( $event_path );
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} // end function Relative_Path()
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public function Link_Path() {
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if ( ZM_USE_DEEP_STORAGE ) {
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return $this->{'MonitorId'} .'/'.strftime( '%y/%m/%d/.', $this->Time()).$this->{'Id'};
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}
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Error('Calling Link_Path when not using deep storage');
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return '';
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}
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public function delete() {
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# This wouldn't work with foreign keys
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dbQuery( 'DELETE FROM Events WHERE Id = ?', array($this->{'Id'}) );
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if ( !ZM_OPT_FAST_DELETE ) {
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dbQuery( 'DELETE FROM Stats WHERE EventId = ?', array($this->{'Id'}) );
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dbQuery( 'DELETE FROM Frames WHERE EventId = ?', array($this->{'Id'}) );
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if ( ZM_USE_DEEP_STORAGE ) {
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# Assumption: All events have a start time
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$start_date = date_parse( $this->{'StartTime'} );
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if ( ! $start_date ) {
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Error('Unable to parse start time for event ' . $this->{'Id'} . ' not deleting files.' );
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return;
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}
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$start_date['year'] = $start_date['year'] % 100;
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# So this is because ZM creates a link under the day pointing to the time that the event happened.
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$link_path = $this->Link_Path();
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if ( ! $link_path ) {
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Error('Unable to determine link path for event ' . $this->{'Id'} . ' not deleting files.' );
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return;
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}
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$Storage = $this->Storage();
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$eventlink_path = $Storage->Path().'/'.$link_path;
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if ( $id_files = glob( $eventlink_path ) ) {
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if ( ! $eventPath = readlink($id_files[0]) ) {
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Error("Unable to read link at $id_files[0]");
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return;
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}
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# I know we are using arrays here, but really there can only ever be 1 in the array
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$eventPath = preg_replace( '/\.'.$this->{'Id'}.'$/', $eventPath, $id_files[0] );
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deletePath( $eventPath );
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deletePath( $id_files[0] );
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$pathParts = explode( '/', $eventPath );
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for ( $i = count($pathParts)-1; $i >= 2; $i-- ) {
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$deletePath = join( '/', array_slice( $pathParts, 0, $i ) );
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if ( !glob( $deletePath."/*" ) ) {
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deletePath( $deletePath );
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}
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}
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} else {
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Warning( "Found no event files under $eventlink_path" );
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} # end if found files
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} else {
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$eventPath = $this->Path();
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deletePath( $eventPath );
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} # USE_DEEP_STORAGE OR NOT
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} # ! ZM_OPT_FAST_DELETE
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} # end Event->delete
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public function getStreamSrc( $args=array(), $querySep='&' ) {
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if ( $this->{'DefaultVideo'} ) {
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return ( ZM_BASE_PATH != '/' ? ZM_BASE_PATH : '' ).'/index.php?view=view_video&eid='.$this->{'Id'};
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}
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$streamSrc = ZM_BASE_URL.ZM_PATH_ZMS;
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$args[] = 'source=event&event='.$this->{'Id'};
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if ( ZM_OPT_USE_AUTH ) {
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if ( ZM_AUTH_RELAY == 'hashed' ) {
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$args[] = 'auth='.generateAuthHash( ZM_AUTH_HASH_IPS );
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} elseif ( ZM_AUTH_RELAY == 'plain' ) {
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$args[] = 'user='.$_SESSION['username'];
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$args[] = 'pass='.$_SESSION['password'];
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} elseif ( ZM_AUTH_RELAY == "none" ) {
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$args[] = 'user='.$_SESSION['username'];
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}
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}
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if ( !in_array( 'mode=single', $args ) && !empty($GLOBALS['connkey']) ) {
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$args[] = 'connkey='.$GLOBALS['connkey'];
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}
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if ( ZM_RAND_STREAM ) {
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$args[] = 'rand='.time();
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}
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if ( count($args) ) {
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$streamSrc .= '?'.join( $querySep, $args );
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}
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return( $streamSrc );
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} // end function getStreamSrc
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function DiskSpace() {
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return folder_size( $this->Path() );
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}
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function createListThumbnail( $overwrite=false ) {
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# Load the frame with the highest score to use as a thumbnail
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if ( !($frame = dbFetchOne( 'SELECT * FROM Frames WHERE EventId=? AND Score=? ORDER BY FrameId LIMIT 1', NULL, array( $this->{'Id'}, $this->{'MaxScore'} ) )) ) {
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Error("Unable to find a Frame matching max score " . $this->{'MaxScore'} . ' for event ' . $this->{'Id'} );
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// FIXME: What if somehow the db frame was lost or score was changed? Should probably try another search for any frame.
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return( false );
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}
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$frameId = $frame['FrameId'];
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if ( ZM_WEB_LIST_THUMB_WIDTH ) {
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$thumbWidth = ZM_WEB_LIST_THUMB_WIDTH;
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$scale = (SCALE_BASE*ZM_WEB_LIST_THUMB_WIDTH)/$this->{'Width'};
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$thumbHeight = reScale( $this->{'Height'}, $scale );
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} elseif ( ZM_WEB_LIST_THUMB_HEIGHT ) {
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$thumbHeight = ZM_WEB_LIST_THUMB_HEIGHT;
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$scale = (SCALE_BASE*ZM_WEB_LIST_THUMB_HEIGHT)/$this->{'Height'};
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$thumbWidth = reScale( $this->{'Width'}, $scale );
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} else {
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Fatal( "No thumbnail width or height specified, please check in Options->Web" );
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}
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$imageData = $this->getImageSrc( $frame, $scale, false, $overwrite );
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if ( ! $imageData ) {
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return ( false );
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}
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$thumbData = $frame;
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$thumbData['Path'] = $imageData['thumbPath'];
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$thumbData['Width'] = (int)$thumbWidth;
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$thumbData['Height'] = (int)$thumbHeight;
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return( $thumbData );
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} // end function createListThumbnail
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// frame is an array representing the db row for a frame.
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function getImageSrc( $frame, $scale=SCALE_BASE, $captureOnly=false, $overwrite=false ) {
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$Storage = new Storage( isset($this->{'StorageId'}) ? $this->{'StorageId'} : NULL );
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$Event = $this;
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$eventPath = $Event->Path();
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if ( $frame and ! is_array($frame) ) {
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# Must be an Id
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Debug("Assuming that $frame is an Id");
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$frame = array( 'FrameId'=>$frame, 'Type'=>'' );
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}
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if ( ( ! $frame ) and file_exists( $eventPath.'/snapshot.jpg' ) ) {
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# No frame specified, so look for a snapshot to use
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$captImage = 'snapshot.jpg';
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Debug("Frame not specified, using snapshot");
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} else {
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$captImage = sprintf( '%0'.ZM_EVENT_IMAGE_DIGITS.'d-capture.jpg', $frame['FrameId'] );
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if ( ! file_exists( $eventPath.'/'.$captImage ) ) {
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# Generate the frame JPG
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if ( $Event->DefaultVideo() ) {
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$videoPath = $eventPath.'/'.$Event->DefaultVideo();
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if ( ! file_exists( $videoPath ) ) {
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Error("Event claims to have a video file, but it does not seem to exist at $videoPath" );
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return '';
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}
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#$command ='ffmpeg -v 0 -i '.$videoPath.' -vf "select=gte(n\\,'.$frame['FrameId'].'),setpts=PTS-STARTPTS" '.$eventPath.'/'.$captImage;
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$command ='ffmpeg -ss '. $frame['Delta'] .' -i '.$videoPath.' -frames:v 1 '.$eventPath.'/'.$captImage;
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Logger::Debug( "Running $command" );
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$output = array();
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$retval = 0;
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exec( $command, $output, $retval );
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Logger::Debug("Retval: $retval, output: " . implode("\n", $output));
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} else {
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Error("Can't create frame images from video becuase there is no video file for this event (".$Event->DefaultVideo() );
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}
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}
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}
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$captPath = $eventPath.'/'.$captImage;
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if ( ! file_exists( $captPath ) ) {
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Error( "Capture file does not exist at $captPath" );
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return '';
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}
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$thumbCaptPath = ZM_DIR_IMAGES.'/'.$this->{'Id'}.'-'.$captImage;
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//echo "CI:$captImage, CP:$captPath, TCP:$thumbCaptPath<br>";
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$analImage = sprintf( '%0'.ZM_EVENT_IMAGE_DIGITS.'d-analyse.jpg', $frame['FrameId'] );
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$analPath = $eventPath.'/'.$analImage;
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$thumbAnalPath = ZM_DIR_IMAGES.'/'.$this->{'Id'}.'-'.$analImage;
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//echo "AI:$analImage, AP:$analPath, TAP:$thumbAnalPath<br>";
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$alarmFrame = $frame['Type']=='Alarm';
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$hasAnalImage = $alarmFrame && file_exists( $analPath ) && filesize( $analPath );
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$isAnalImage = $hasAnalImage && !$captureOnly;
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if ( !ZM_WEB_SCALE_THUMBS || $scale >= SCALE_BASE || !function_exists( 'imagecreatefromjpeg' ) ) {
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$imagePath = $thumbPath = $isAnalImage?$analPath:$captPath;
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$imageFile = $imagePath;
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$thumbFile = $thumbPath;
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} else {
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if ( version_compare( phpversion(), '4.3.10', '>=') )
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$fraction = sprintf( '%.3F', $scale/SCALE_BASE );
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else
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$fraction = sprintf( '%.3f', $scale/SCALE_BASE );
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$scale = (int)round( $scale );
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$thumbCaptPath = preg_replace( '/\.jpg$/', "-$scale.jpg", $thumbCaptPath );
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$thumbAnalPath = preg_replace( '/\.jpg$/', "-$scale.jpg", $thumbAnalPath );
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if ( $isAnalImage ) {
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$imagePath = $analPath;
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$thumbPath = $thumbAnalPath;
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} else {
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$imagePath = $captPath;
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$thumbPath = $thumbCaptPath;
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}
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$thumbFile = $thumbPath;
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if ( $overwrite || ! file_exists( $thumbFile ) || ! filesize( $thumbFile ) ) {
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// Get new dimensions
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list( $imageWidth, $imageHeight ) = getimagesize( $imagePath );
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$thumbWidth = $imageWidth * $fraction;
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$thumbHeight = $imageHeight * $fraction;
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// Resample
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$thumbImage = imagecreatetruecolor( $thumbWidth, $thumbHeight );
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$image = imagecreatefromjpeg( $imagePath );
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imagecopyresampled( $thumbImage, $image, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $imageWidth, $imageHeight );
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if ( !imagejpeg( $thumbImage, $thumbPath ) )
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Error( "Can't create thumbnail '$thumbPath'" );
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}
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} # Create thumbnails
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$imageData = array(
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'eventPath' => $eventPath,
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'imagePath' => $imagePath,
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'thumbPath' => $thumbPath,
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'imageFile' => $imagePath,
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'thumbFile' => $thumbFile,
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'imageClass' => $alarmFrame?'alarm':'normal',
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'isAnalImage' => $isAnalImage,
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'hasAnalImage' => $hasAnalImage,
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);
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return( $imageData );
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}
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} # end class
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?>
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