Merge branch 'master' into stable

* master: (214 commits)
  release preparations
  postgresql auth plugin: correct function name
  parse AT parameter: first strtotime then timestamp remove config option
  move more strings to lang.php
  move strings to lang.php
  add placeholders for create page text
  phpdocs parserutils
  improve some scrutinizer issues
  visibility plugin methods
  use config cascade for loading of localizations
  reformatting config cascade
  add lang files to cascading
  work around missing gzopen on certain systems #865
  translation update
  fix scrutinizer issues
  fixed typos in docblock comments
  do not allow empty passwords
  clean user credentials from control chars
  added filter method to INPUT class
  translation update
  ...

1 files changed, 37 insertions, 2 deletions

diff --git a/doku.php b/doku.php
index 4bf904af9..261ceaec2 100644
--- a/doku.php
+++ b/doku.php
@@ -9,7 +9,7 @@
  */
 
 // update message version
-$updateVersion = 44.1;
+$updateVersion = 46;
 
 //  xdebug_start_profiling();
 
@@ -34,6 +34,7 @@ $QUERY          = trim($INPUT->str('id'));
 $ID             = getID();
 
 $REV   = $INPUT->int('rev');
+$DATE_AT = $INPUT->str('at');
 $IDX   = $INPUT->str('idx');
 $DATE  = $INPUT->int('date');
 $RANGE = $INPUT->str('range');
@@ -47,7 +48,41 @@ $PRE = cleanText(substr($INPUT->post->str('prefix'), 0, -1));
 $SUF = cleanText($INPUT->post->str('suffix'));
 $SUM = $INPUT->post->str('summary');
 
-//make info about the selected page available
+
+//parse DATE_AT
+if($DATE_AT) {
+    $date_parse = strtotime($DATE_AT);
+    if($date_parse) {
+        $DATE_AT = $date_parse;
+    } else { // check for UNIX Timestamp
+        $date_parse = @date('Ymd',$DATE_AT);
+        if(!$date_parse || $date_parse === '19700101') {
+            msg(sprintf($lang['unable_to_parse_date'], $DATE_AT));
+            $DATE_AT = null;
+        }
+    }
+}
+
+//check for existing $REV related to $DATE_AT
+if($DATE_AT) {
+    $pagelog = new PageChangeLog($ID);
+    $rev_t = $pagelog->getLastRevisionAt($DATE_AT);
+    if($rev_t === '') { //current revision
+        $REV = null;
+        $DATE_AT = null;
+    } else if ($rev_t === false) { //page did not exist
+        $rev_n = $pagelog->getRelativeRevision($DATE_AT,+1);
+        msg(sprintf($lang['page_nonexist_rev'], 
+            strftime($conf['dformat'],$DATE_AT),
+            wl($ID, array('rev' => $rev_n)),
+            strftime($conf['dformat'],$rev_n)));
+        $REV = $DATE_AT; //will result in a page not exists message
+    } else {
+        $REV = $rev_t;
+    }
+}
+
+//make infos about the selected page available
 $INFO = pageinfo();
 
 //export minimal info to JS, plugins can add more