X-Git-Url: https://git.nubati.net/cgi-bin/gitweb.cgi?p=phpfspot.git;a=blobdiff_plain;f=phpfspot.class.php;h=2e491c5f4e4af4e2da07fa26ab98ded6faeb8c81;hp=5e25f21b81d446d3c1097b630a44b40ba7ae978c;hb=350ffa92282e6b5adf3dc2b854fbb2255c845b8e;hpb=99b313d1ae233bc46374a6ba435447b5f7b669af
diff --git a/phpfspot.class.php b/phpfspot.class.php
index 5e25f21..2e491c5 100644
--- a/phpfspot.class.php
+++ b/phpfspot.class.php
@@ -1,5 +1,26 @@
cfg = new PHPFSPOT_CFG;
$this->db = new PHPFSPOT_DB(&$this, $this->cfg->fspot_db);
+
+ if(!is_writeable(dirname($this->cfg->phpfspot_db))) {
+ print dirname($this->cfg->phpfspot_db) .": directory is not writeable!";
+ exit(1);
+ }
+
$this->cfg_db = new PHPFSPOT_DB(&$this, $this->cfg->phpfspot_db);
$this->check_config_table();
@@ -49,44 +83,78 @@ class PHPFSPOT {
} // __destruct()
+ /**
+ * show - generate html output
+ *
+ * this function can be called after the constructor has
+ * prepared everyhing. it will load the index.tpl smarty
+ * template. if necessary it will registere pre-selects
+ * (photo index, photo, tag search, date search) into
+ * users session.
+ */
public function show()
{
$this->tmpl->assign('searchfor', $_SESSION['searchfor']);
$this->tmpl->assign('page_title', $this->cfg->page_title);
$this->tmpl->assign('current_condition', $_SESSION['tag_condition']);
- $this->tmpl->assign('from_date', $this->get_calendar());
- $this->tmpl->assign('to_date', $this->get_calendar());
+
+ $_SESSION['start_action'] = $_GET['mode'];
switch($_GET['mode']) {
case 'showpi':
if(isset($_GET['tags'])) {
$_SESSION['selected_tags'] = split(',', $_GET['tags']);
}
+ if(isset($_GET['from_date'])) {
+ $_SESSION['from_date'] = $_GET['from_date'];
+ }
+ if(isset($_GET['to_date'])) {
+ $_SESSION['to_date'] = $_GET['to_date'];
+ }
break;
case 'showp':
if(isset($_GET['tags'])) {
$_SESSION['selected_tags'] = split(',', $_GET['tags']);
+ $_SESSION['start_action'] = 'showp';
}
if(isset($_GET['id'])) {
$_SESSION['current_photo'] = $_GET['id'];
+ $_SESSION['start_action'] = 'showp';
+ }
+ if(isset($_GET['from_date'])) {
+ $_SESSION['from_date'] = $_GET['from_date'];
+ }
+ if(isset($_GET['to_date'])) {
+ $_SESSION['to_date'] = $_GET['to_date'];
}
break;
case 'export':
$this->tmpl->show("export.tpl");
return;
break;
-
}
+ $this->tmpl->assign('from_date', $this->get_calendar('from'));
+ $this->tmpl->assign('to_date', $this->get_calendar('to'));
$this->tmpl->assign('content_page', 'welcome.tpl');
$this->tmpl->show("index.tpl");
} // show()
+ /**
+ * get_tags - grab all tags of f-spot's database
+ *
+ * this function will get all available tags from
+ * the f-spot database and store them within two
+ * arrays within this clase for later usage. in
+ * fact, if the user requests (hide_tags) it will
+ * opt-out some of them.
+ *
+ * this function is getting called once by show()
+ */
private function get_tags()
{
-
$this->avail_tags = Array();
$count = 0;
@@ -114,6 +182,12 @@ class PHPFSPOT {
} // get_tags()
+ /**
+ * extract all photo details
+ *
+ * retrieve all available details from f-spot's
+ * database and return them as object
+ */
public function get_photo_details($idx)
{
$result = $this->db->db_query("
@@ -126,6 +200,13 @@ class PHPFSPOT {
} // get_photo_details
+ /**
+ * returns aligned photo names
+ *
+ * this function returns aligned (length) names for
+ * an specific photo. If the length of the name exceeds
+ * $limit the name will be shrinked (...)
+ */
public function getPhotoName($idx, $limit = 0)
{
if($details = $this->get_photo_details($idx)) {
@@ -138,24 +219,43 @@ class PHPFSPOT {
} // getPhotoName()
+ /**
+ * translate f-spoth photo path
+ *
+ * as the full-qualified path recorded in the f-spot database
+ * is usally not the same as on the webserver, this function
+ * will replace the path with that one specified in the cfg
+ */
public function translate_path($path, $width = 0)
{
return str_replace($this->cfg->path_replace_from, $this->cfg->path_replace_to, $path);
} // translate_path
+ /**
+ * control HTML ouput for a single photo
+ *
+ * this function provides all the necessary information
+ * for the single photo template.
+ */
public function showPhoto($photo)
{
+ /* get all photos from the current photo selection */
$all_photos = $this->getPhotoSelection();
$count = count($all_photos);
for($i = 0; $i < $count; $i++) {
- if($get_next) {
+ // $get_next will be set, when the photo which has to
+ // be displayed has been found - this means that the
+ // next available is in fact the NEXT image (for the
+ // navigation icons)
+ if(isset($get_next)) {
$next_img = $all_photos[$i];
break;
}
+ /* the next photo is our NEXT photo */
if($all_photos[$i] == $photo) {
$get_next = 1;
}
@@ -169,6 +269,12 @@ class PHPFSPOT {
}
$details = $this->get_photo_details($photo);
+
+ if(!$details) {
+ print "error";
+ return;
+ }
+
$orig_path = $this->translate_path($details['directory_path']) ."/". $details['name'];
$thumb_path = $this->cfg->base_path ."/thumbs/". $this->cfg->photo_width ."_". $this->getMD5($photo);
@@ -177,14 +283,16 @@ class PHPFSPOT {
}
if(!is_readable($orig_path)) {
- $this->_warning("Photo ". $orig_path ." is not readable for user ". get_current_user() ." \n");
+ $this->_warning("Photo ". $orig_path ." is not readable for user ". $this->getuid() ." \n");
}
/* If the thumbnail doesn't exist yet, try to create it */
if(!file_exists($thumb_path)) {
$this->gen_thumb($photo, true);
+ $thumb_path = $this->cfg->base_path ."/thumbs/". $this->cfg->photo_width ."_". $this->getMD5($photo);
}
+ /* get f-spot database meta information */
$meta = $this->get_meta_informations($orig_path);
/* If EXIF data are available, use them */
@@ -199,11 +307,14 @@ class PHPFSPOT {
$meta_make = isset($meta['Make']) ? $meta['Make'] ." ". $meta['Model'] : "n/a";
$meta_size = isset($meta['FileSize']) ? round($meta['FileSize']/1024, 1) ."kbyte" : "n/a";
- $current_tags = $this->getCurrentTags();
$extern_link = "index.php?mode=showp&id=". $photo;
+ $current_tags = $this->getCurrentTags();
if($current_tags != "") {
$extern_link.= "&tags=". $current_tags;
}
+ if(isset($_SESSION['from_date']) && isset($_SESSION['to_date'])) {
+ $extern_link.= "&from_date=". $_SESSION['from_date'] ."&to_date=". $_SESSION['to_date'];
+ }
$this->tmpl->assign('extern_link', $extern_link);
@@ -229,6 +340,7 @@ class PHPFSPOT {
}
else {
$this->_warning("Can't open file ". $thumb_path ."\n");
+ return;
}
if($previous_img) {
@@ -246,8 +358,17 @@ class PHPFSPOT {
} // showPhoto()
+ /**
+ * all available tags and tag cloud
+ *
+ * this function outputs all available tags (time ordered)
+ * and in addition output them as tag cloud (tags which have
+ * many photos will appears more then others)
+ */
public function getAvailableTags()
{
+ $output = "";
+
$result = $this->db->db_query("
SELECT tag_id as id, count(tag_id) as quantity
FROM photo_tags
@@ -295,12 +416,22 @@ class PHPFSPOT {
// uncomment if you want sizes in whole %:
$size = ceil($size);
- print "". $this->tags[$key] .", ";
+ $output.= "". $this->tags[$key] .", ";
}
+ $output = substr($output, 0, strlen($output)-2);
+ print $output;
+
} // getAvailableTags()
+ /**
+ * output all selected tags
+ *
+ * this function output all tags which have been selected
+ * by the user. the selected tags are stored in the
+ * session-variable $_SESSION['selected_tags']
+ */
public function getSelectedTags()
{
$output = "";
@@ -317,8 +448,18 @@ class PHPFSPOT {
} // getSelectedTags()
+ /**
+ * add tag to users session variable
+ *
+ * this function will add the specified to users current
+ * tag selection. if a date search has been made before
+ * it will be now cleared
+ */
public function addTag($tag)
{
+ // if the result of a date search are displayed, reset them
+ $this->resetDateSearch();
+
if(!isset($_SESSION['selected_tags']))
$_SESSION['selected_tags'] = Array();
@@ -327,6 +468,12 @@ class PHPFSPOT {
} // addTag()
+ /**
+ * remove tag to users session variable
+ *
+ * this function removes the specified tag from
+ * users current tag selection
+ */
public function delTag($tag)
{
if(isset($_SESSION['selected_tags'])) {
@@ -337,27 +484,71 @@ class PHPFSPOT {
} // delTag()
+ /**
+ * reset tag selection
+ *
+ * if there is any tag selection, it will be
+ * deleted now
+ */
public function resetTags()
{
- unset($_SESSION['selected_tags']);
+ if(isset($_SESSION['selected_tags']))
+ unset($_SESSION['selected_tags']);
} // resetTags()
+ /**
+ * reset single photo
+ *
+ * if a specific photo was requested (external link)
+ * unset the session variable now
+ */
public function resetPhotoView()
{
- unset($_SESSION['current_photo']);
+ if(isset($_SESSION['current_photo']))
+ unset($_SESSION['current_photo']);
} // resetPhotoView();
+ /**
+ * reset tag search
+ *
+ * if any tag search has taken place, reset
+ * it now
+ */
public function resetTagSearch()
{
- unset($_SESSION['searchfor']);
+ if(isset($_SESSION['searchfor']))
+ unset($_SESSION['searchfor']);
} // resetTagSearch()
+ /**
+ * reset date search
+ *
+ * if any date search has taken place, reset
+ * it now
+ */
+ public function resetDateSearch()
+ {
+ if(isset($_SESSION['from_date']))
+ unset($_SESSION['from_date']);
+ if(isset($_SESSION['to_date']))
+ unset($_SESSION['to_date']);
+
+ } // resetDateSearch();
+
+ /**
+ * return all photo according selection
+ *
+ * this function returns all photos based on
+ * the tag-selection, tag- or date-search.
+ * the tag-search also has to take care of AND
+ * and OR conjunctions
+ */
public function getPhotoSelection()
{
- $tagged_photos = Array();
+ $matched_photos = Array();
/* return a search result */
if(isset($_SESSION['searchfor']) && $_SESSION['searchfor'] != '') {
@@ -372,9 +563,9 @@ class PHPFSPOT {
ORDER BY p.time ASC
");
while($row = $this->db->db_fetch_object($result)) {
- array_push($tagged_photos, $row['photo_id']);
+ array_push($matched_photos, $row['photo_id']);
}
- return $tagged_photos;
+ return $matched_photos;
}
/* return according the selected tags */
@@ -432,11 +623,31 @@ class PHPFSPOT {
}
while($row = $this->db->db_fetch_object($result)) {
- array_push($tagged_photos, $row['photo_id']);
+ array_push($matched_photos, $row['photo_id']);
}
- return $tagged_photos;
+ return $matched_photos;
}
+ if(isset($_SESSION['from_date']) && isset($_SESSION['to_date'])) {
+ $from_date = strtotime($_SESSION['from_date']);
+ $to_date = strtotime($_SESSION['to_date']);
+ $result = $this->db->db_query("
+ SELECT DISTINCT photo_id
+ FROM photo_tags pt
+ INNER JOIN photos p
+ ON p.id=pt.photo_id
+ WHERE
+ time>='". $from_date ."'
+ AND
+ time<='". $to_date ."'
+ ORDER BY p.time ASC
+ ");
+ while($row = $this->db->db_fetch_object($result)) {
+ array_push($matched_photos, $row['photo_id']);
+ }
+ return $matched_photos;
+ }
+
/* return all available photos */
$result = $this->db->db_query("
SELECT DISTINCT photo_id
@@ -446,12 +657,18 @@ class PHPFSPOT {
ORDER BY p.time ASC
");
while($row = $this->db->db_fetch_object($result)) {
- array_push($tagged_photos, $row['photo_id']);
+ array_push($matched_photos, $row['photo_id']);
}
- return $tagged_photos;
+ return $matched_photos;
} // getPhotoSelection()
+ /**
+ * control HTML ouput for photo index
+ *
+ * this function provides all the necessary information
+ * for the photo index template.
+ */
public function showPhotoIndex()
{
$photos = $this->getPhotoSelection();
@@ -612,6 +829,9 @@ class PHPFSPOT {
if($current_tags != "") {
$extern_link.= "&tags=". $current_tags;
}
+ if(isset($_SESSION['from_date']) && isset($_SESSION['to_date'])) {
+ $extern_link.= "&from_date=". $_SESSION['from_date'] ."&to_date=". $_SESSION['to_date'];
+ }
$export_link = "index.php?mode=export";
@@ -635,43 +855,9 @@ class PHPFSPOT {
} // showPhotoIndex()
- public function showBubbleDetails($photo, $direction)
- {
- if($direction == "up")
- $direction = "bubbleimg_up";
- else
- $direction = "bubbleimg_down";
-
- $details = $this->get_photo_details($photo);
- $orig_path = $this->translate_path($details['directory_path']) ."/". $details['name'];
-
- $image_url = "phpfspot_img.php?idx=". $photo ."&width=". $this->cfg->bubble_width;
-
- $filesize = filesize($orig_path);
- $filesize = rand($filesize/1024, 2);
-
- if(!file_exists($orig_path)) {
- $this->_warning("Photo ". $orig_path ." does not exist! \n");
- return;
- }
-
- if(!is_readable($orig_path)) {
- $this->_warning("Photo ". $orig_path ." is not readable for user ". get_current_user() ." \n");
- return;
- }
-
- $img = getimagesize($orig_path);
-
- $this->tmpl->assign('file_size', $filesize);
- $this->tmpl->assign('width', $img[0]);
- $this->tmpl->assign('height', $img[1]);
- $this->tmpl->assign('file_name', $details['name']);
- $this->tmpl->assign('image_id', $direction);
- $this->tmpl->assign('image_url', $image_url);
- $this->tmpl->show("bubble_details.tpl");
-
- } // showBubbleDetails()
-
+ /**
+ * show credit template
+ */
public function showCredits()
{
$this->tmpl->assign('version', $this->cfg->version);
@@ -680,10 +866,19 @@ class PHPFSPOT {
} // showCredits()
+ /**
+ * create_thumbnails for the requested width
+ *
+ * this function creates image thumbnails of $orig_image
+ * stored as $thumb_image. It will check if the image is
+ * in a supported format, if necessary rotate the image
+ * (based on EXIF orientation meta headers) and re-sizing.
+ */
public function create_thumbnail($orig_image, $thumb_image, $width)
{
- if(!file_exists($orig_image))
+ if(!file_exists($orig_image)) {
return false;
+ }
$details = getimagesize($orig_image);
@@ -728,9 +923,11 @@ class PHPFSPOT {
$cur_height = imagesy($src_img);
// If requested width is more then the actual image width,
- // do not generate a thumbnail
+ // do not generate a thumbnail, instead safe the original
+ // as thumbnail but with lower quality
if($width >= $cur_width) {
+ $result = imagejpeg($src_img, $thumb_image, 75);
imagedestroy($src_img);
return true;
}
@@ -812,12 +1009,22 @@ class PHPFSPOT {
} // create_thumbnail()
+ /**
+ * return all exif meta data from the file
+ */
public function get_meta_informations($file)
{
return exif_read_data($file);
} // get_meta_informations()
+ /**
+ * create phpfspot own sqlite database
+ *
+ * this function creates phpfspots own sqlite database
+ * if it does not exist yet. this own is used to store
+ * some necessary informations (md5 sum's, ...).
+ */
public function check_config_table()
{
// if the config table doesn't exist yet, create it
@@ -849,7 +1056,6 @@ class PHPFSPOT {
$resolutions = Array(
$this->cfg->thumb_width,
- $this->cfg->bubble_width,
$this->cfg->photo_width,
$this->cfg->mini_width,
);
@@ -866,7 +1072,7 @@ class PHPFSPOT {
}
if(!is_readable($full_path)) {
- $this->_warning("File ". $full_path ." is not readable for ". get_current_user() ."\n");
+ $this->_warning("File ". $full_path ." is not readable for ". $this->getuid() ."\n");
return;
}
@@ -885,7 +1091,6 @@ class PHPFSPOT {
if(!$this->create_thumbnail($full_path, $thumb_path, $resolution))
$error = 1;
}
-
/* if the file hasn't changed there is no need to regen the thumb */
elseif($file_md5 != $this->getMD5($idx) || $force) {
@@ -905,6 +1110,12 @@ class PHPFSPOT {
} // gen_thumb()
+ /**
+ * returns stored md5 sum for a specific photo
+ *
+ * this function queries the phpfspot database for a
+ * stored MD5 checksum of the specified photo
+ */
public function getMD5($idx)
{
$result = $this->cfg_db->db_query("
@@ -921,6 +1132,9 @@ class PHPFSPOT {
} // getMD5()
+ /**
+ * set MD5 sum for the specific photo
+ */
private function setMD5($idx, $md5)
{
$result = $this->cfg_db->db_exec("
@@ -930,12 +1144,26 @@ class PHPFSPOT {
} // setMD5()
+ /**
+ * store current tag condition
+ *
+ * this function stores the current tag condition
+ * (AND or OR) in the users session variables
+ */
public function setTagCondition($mode)
{
$_SESSION['tag_condition'] = $mode;
} // setTagCondition()
+ /**
+ * invoke tag search
+ *
+ * this function will return all matching tags and store
+ * them in the session variable selected_tags.
+ * getPhotoSelection() will then only return the matching
+ * photos.
+ */
public function startTagSearch($searchfor)
{
$_SESSION['searchfor'] = $searchfor;
@@ -946,14 +1174,34 @@ class PHPFSPOT {
array_push($_SESSION['selected_tags'], $tag);
}
+ $this->resetDateSearch();
+
} // startTagSearch()
+ /**
+ * invoke date search
+ *
+ * this function in fact does nothing then only setting
+ * the from- and to-date in the users session variables.
+ * the result is generated by getPhotoSelection().
+ */
+ public function startDateSearch($from, $to)
+ {
+ $_SESSION['from_date'] = $from;
+ $_SESSION['to_date'] = $to;
+ }
+
+ /**
+ * rotate image
+ *
+ * this function rotates the image according the
+ * specified angel.
+ */
private function rotateImage($img, $degrees)
{
- if(function_exists("imagerotate"))
+ if(function_exists("imagerotate")) {
$img = imagerotate($img, $degrees, 0);
- else
- {
+ } else {
function imagerotate($src_img, $angle)
{
$src_x = imagesx($src_img);
@@ -1003,7 +1251,9 @@ class PHPFSPOT {
}
break;
- default: $rotate = $src_img;
+ default:
+ $rotate = $src_img;
+ break;
};
return $rotate;
@@ -1018,6 +1268,9 @@ class PHPFSPOT {
} // rotateImage()
+ /**
+ * return all assigned tags for the specified photo
+ */
private function get_photo_tags($idx)
{
$result = $this->db->db_query("
@@ -1037,6 +1290,9 @@ class PHPFSPOT {
} // get_photo_tags()
+ /**
+ * create on-the-fly images with text within
+ */
public function showTextImage($txt, $color=000000, $space=4, $font=4, $w=300)
{
if (strlen($color) != 6)
@@ -1063,6 +1319,9 @@ class PHPFSPOT {
} // showTextImage()
+ /**
+ * check if all requirements are met
+ */
private function checkRequirements()
{
if(!function_exists("imagecreatefromjpeg")) {
@@ -1104,6 +1363,9 @@ class PHPFSPOT {
} // _debug()
+ /**
+ * check if specified MIME type is supported
+ */
public function checkifImageSupported($mime)
{
if(in_array($mime, Array("image/jpeg")))
@@ -1120,38 +1382,103 @@ class PHPFSPOT {
} // _warning()
- private function get_calendar()
+ /**
+ * output calendard input fields
+ */
+ private function get_calendar($mode)
{
-// require_once CALENDAR_ROOT.'Year.php';
-// require_once CALENDAR_ROOT.'Month.php';
-// require_once CALENDAR_ROOT.'Day.php';
+ $year = $_SESSION[$mode .'_date'] ? date("Y", strtotime($_SESSION[$mode .'_date'])) : date("Y");
+ $month = $_SESSION[$mode .'_date'] ? date("m", strtotime($_SESSION[$mode .'_date'])) : date("m");
+ $day = $_SESSION[$mode .'_date'] ? date("d", strtotime($_SESSION[$mode .'_date'])) : date("d");
-// $Year = new Calendar_Year();
-// $Month = new Calendar_Month();
-// $Day = new Calendar_Day();
+ $output = "\n";
+ $output.= "\n";
+ $output.= "\n";
+ return $output;
- $output = "\n";
+ } // get_calendar()
- $output.= "\n";
+ /**
+ * output calendar matrix
+ */
+ public function get_calendar_matrix($year = 0, $month = 0, $day = 0)
+ {
+ if (!isset($year)) $year = date('Y');
+ if (!isset($month)) $month = date('m');
+ if (!isset($day)) $day = date('d');
+ $rows = 1;
+ $cols = 1;
+ $matrix = Array();
+
+ require_once CALENDAR_ROOT.'Month/Weekdays.php';
+ require_once CALENDAR_ROOT.'Day.php';
+
+ // Build the month
+ $month = new Calendar_Month_Weekdays($year,$month);
+
+ // Create links
+ $prevStamp = $month->prevMonth(true);
+ $prev = "javascript:setMonth(". date('Y',$prevStamp) .", ". date('n',$prevStamp) .", ". date('j',$prevStamp) .");";
+ $nextStamp = $month->nextMonth(true);
+ $next = "javascript:setMonth(". date('Y',$nextStamp) .", ". date('n',$nextStamp) .", ". date('j',$nextStamp) .");";
+
+ $selectedDays = array (
+ new Calendar_Day($year,$month,$day),
+ new Calendar_Day($year,12,25),
+ );
+
+ // Build the days in the month
+ $month->build($selectedDays);
+
+ $this->tmpl->assign('current_month', date('F Y',$month->getTimeStamp()));
+ $this->tmpl->assign('prev_month', $prev);
+ $this->tmpl->assign('next_month', $next);
- $output.= "\n";
- return $output;
+ $this->tmpl->assign('matrix', $matrix);
+ $this->tmpl->assign('rows', $rows);
+ $this->tmpl->show("calendar.tpl");
- } // get_calendar()
+ } // get_calendar_matrix()
+ /**
+ * output export page
+ */
public function getExport($mode)
{
$pictures = $this->getPhotoSelection();
@@ -1168,6 +1495,9 @@ class PHPFSPOT {
if($current_tags != "") {
$orig_url.= "&tags=". $current_tags;
}
+ if(isset($_SESSION['from_date']) && isset($_SESSION['to_date'])) {
+ $orig_url.= "&from_date=". $_SESSION['from_date'] ."&to_date=". $_SESSION['to_date'];
+ }
$thumb_url = $protocol ."://". $server_name . $this->cfg->web_path ."phpfspot_img.php?idx=". $picture ."&width=". $this->cfg->thumb_width;
@@ -1188,6 +1518,9 @@ class PHPFSPOT {
} // getExport()
+ /**
+ * return all selected tags as one string
+ */
private function getCurrentTags()
{
$current_tags = "";
@@ -1200,6 +1533,9 @@ class PHPFSPOT {
} // getCurrentTags()
+ /**
+ * return the current photo
+ */
public function getCurrentPhoto()
{
if(isset($_SESSION['current_photo'])) {
@@ -1207,6 +1543,49 @@ class PHPFSPOT {
}
} // getCurrentPhoto()
+ /**
+ * tells the client browser what to do
+ *
+ * this function is getting called via AJAX by the
+ * client browsers. it will tell them what they have
+ * to do next. This is necessary for directly jumping
+ * into photo index or single photo view when the are
+ * requested with specific URLs
+ */
+ public function whatToDo()
+ {
+ if(isset($_SESSION['selected_tags']) && !empty($_SESSION['selected_tags'])) {
+ return "showpi_tags";
+ }
+ elseif(isset($_SESSION['from_date']) && isset($_SESSION['to_date'])) {
+ return "showpi_date";
+ }
+ elseif(isset($_SESSION['current_photo'])) {
+ return "show_photo";
+ }
+ elseif(isset($_SESSION['start_action']) && $_SESSION['start_action'] == 'showpi') {
+ return "showpi";
+ }
+
+ return "nothing special";
+
+ } // whatToDo()
+
+ /**
+ * return the current process-user
+ */
+ private function getuid()
+ {
+ if($uid = posix_getuid()) {
+ if($user = posix_getpwuid($uid)) {
+ return $user['name'];
+ }
+ }
+
+ return 'n/a';
+
+ } // getuid()
+
}
?>