/**
* Main entry point.
*
* @param $session Array: initial session array
*
* @return Array: new session array
*/
public function execute(array $session)
{
$this->session = $session;
if (isset($session['settings'])) {
$this->settings = $session['settings'] + $this->settings;
}
$this->exportVars();
$this->setupLanguage();
if (($this->getVar('_InstallDone') || $this->getVar('_UpgradeDone')) && $this->request->getVal('localsettings')) {
$this->request->response()->header('Content-type: application/x-httpd-php');
$this->request->response()->header('Content-Disposition: attachment; filename="LocalSettings.php"');
$ls = new LocalSettingsGenerator($this);
$rightsProfile = $this->rightsProfiles[$this->getVar('_RightsProfile')];
foreach ($rightsProfile as $group => $rightsArr) {
$ls->setGroupRights($group, $rightsArr);
}
echo $ls->getText();
return $this->session;
}
$cssDir = $this->request->getVal('css');
if ($cssDir) {
$cssDir = $cssDir == 'rtl' ? 'rtl' : 'ltr';
$this->request->response()->header('Content-type: text/css');
echo $this->output->getCSS($cssDir);
return $this->session;
}
if (isset($session['happyPages'])) {
$this->happyPages = $session['happyPages'];
} else {
$this->happyPages = array();
}
if (isset($session['skippedPages'])) {
$this->skippedPages = $session['skippedPages'];
} else {
$this->skippedPages = array();
}
$lowestUnhappy = $this->getLowestUnhappy();
# Special case for Creative Commons partner chooser box.
if ($this->request->getVal('SubmitCC')) {
$page = $this->getPageByName('Options');
$this->output->useShortHeader();
$this->output->allowFrames();
$page->submitCC();
return $this->finish();
}
if ($this->request->getVal('ShowCC')) {
$page = $this->getPageByName('Options');
$this->output->useShortHeader();
$this->output->allowFrames();
$this->output->addHTML($page->getCCDoneBox());
return $this->finish();
}
# Get the page name.
$pageName = $this->request->getVal('page');
if (in_array($pageName, $this->otherPages)) {
# Out of sequence
$pageId = false;
$page = $this->getPageByName($pageName);
} else {
# Main sequence
if (!$pageName || !in_array($pageName, $this->pageSequence)) {
$pageId = $lowestUnhappy;
} else {
$pageId = array_search($pageName, $this->pageSequence);
}
# If necessary, move back to the lowest-numbered unhappy page
if ($pageId > $lowestUnhappy) {
$pageId = $lowestUnhappy;
if ($lowestUnhappy == 0) {
# Knocked back to start, possible loss of session data.
$this->showSessionWarning = true;
}
}
$pageName = $this->pageSequence[$pageId];
$page = $this->getPageByName($pageName);
}
# If a back button was submitted, go back without submitting the form data.
if ($this->request->wasPosted() && $this->request->getBool('submit-back')) {
if ($this->request->getVal('lastPage')) {
$nextPage = $this->request->getVal('lastPage');
} elseif ($pageId !== false) {
# Main sequence page
# Skip the skipped pages
$nextPageId = $pageId;
do {
$nextPageId--;
$nextPage = $this->pageSequence[$nextPageId];
} while (isset($this->skippedPages[$nextPage]));
} else {
$nextPage = $this->pageSequence[$lowestUnhappy];
}
$this->output->redirect($this->getUrl(array('page' => $nextPage)));
return $this->finish();
}
# Execute the page.
$this->currentPageName = $page->getName();
$this->startPageWrapper($pageName);
if ($page->isSlow()) {
$this->disableTimeLimit();
}
$result = $page->execute();
$this->endPageWrapper();
if ($result == 'skip') {
# Page skipped without explicit submission.
# Skip it when we click "back" so that we don't just go forward again.
$this->skippedPages[$pageName] = true;
$result = 'continue';
} else {
unset($this->skippedPages[$pageName]);
}
# If it was posted, the page can request a continue to the next page.
if ($result === 'continue' && !$this->output->headerDone()) {
if ($pageId !== false) {
$this->happyPages[$pageId] = true;
}
$lowestUnhappy = $this->getLowestUnhappy();
if ($this->request->getVal('lastPage')) {
$nextPage = $this->request->getVal('lastPage');
} elseif ($pageId !== false) {
$nextPage = $this->pageSequence[$pageId + 1];
} else {
$nextPage = $this->pageSequence[$lowestUnhappy];
}
if (array_search($nextPage, $this->pageSequence) > $lowestUnhappy) {
$nextPage = $this->pageSequence[$lowestUnhappy];
}
$this->output->redirect($this->getUrl(array('page' => $nextPage)));
}
return $this->finish();
}
