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<? |
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|
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// =============================================================== |
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class Tracking { |
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|
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// our TrackingState |
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var $state; |
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|
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// a reference to HttpLib |
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var $httplib; |
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|
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// instantiated datastore, some pages might need it |
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var $ds; |
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|
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|
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// some information-clusters (ics) for keeping meta-information |
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var $ic_virtualpages; |
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var $ic_pagetemplates; |
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var $ic_menustructure; |
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var $ic_navigationtargets; |
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|
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// an object-reference to an ic which holds metadata for the current virtual-page being rendered by "$tracking->genArea()" |
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var $ic_virtualpage_current; |
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|
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// misc |
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var $pageargs; |
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|
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|
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// ------------------------------------------------------------------------------------------------ |
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function Tracking() { |
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|
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// we need some information from "Site" |
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global $site; |
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|
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// create objects |
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$this->httplib = new HttpLib(); |
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|
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// initialize information clusters |
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($this->ic_virtualpages = $site->getInformationCluster('virtualpages')) || trigger_error("could not load InformationCluster", E_USER_ERROR); |
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($this->ic_pagetemplates = $site->getInformationCluster('pagetemplates')) || trigger_error("could not load InformationCluster", E_USER_ERROR); |
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($this->ic_menustructure = $site->getInformationCluster('menu_structure')) || trigger_error("could not load InformationCluster", E_USER_ERROR); |
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($this->ic_navigationtargets = $site->getInformationCluster('navigation_targets')) || trigger_error("could not load InformationCluster", E_USER_ERROR); |
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|
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// initialize some class-variables |
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$this->modules_loaded = array(); |
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|
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} |
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|
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|
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// ------------------------------------------------------------------------------------------------ |
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function initState($metadata_tracking_vars, $metadata_tracking_callbacks) { |
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// initialize state |
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$this->state = new TrackingState($metadata_tracking_vars, $metadata_tracking_callbacks); |
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$this->state->collectInputArguments(); |
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//$this->_processState(); |
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} |
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|
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// ------------------------------------------------------------------------------------------------ |
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function setStatusAttribute($name, $value) { |
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$this->state->set($name, $value); |
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} |
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function unsetStatusAttribute($name) { |
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$this->state->unsetVar($name); |
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} |
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function getStatusAttribute($name) { |
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return $this->state->get($name); |
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} |
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function clearStatusAttributes() { |
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$this->state->clear(); |
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} |
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function dumpState() { |
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$this->state->dump(); |
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} |
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function dumpState_get() { |
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return $this->state->dump_get(); |
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} |
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|
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|
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// ------------------------------------------------------------------------------------ |
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function getLink_ByArgs($link_args) { |
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|
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// data, which is displayed between "<a >"-"</a>-tags (parameters/args, which have a special meaning for building a html-link) |
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// either converted via "htmlentities" (if "caption" is supplied) or directly set (if "innerHTML" is given) |
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if (isset($link_args['caption'])) { $innerHTML = htmlentities($link_args['caption']); } |
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if (isset($link_args['innerHTML'])) { $innerHTML = $link_args['innerHTML']; } |
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|
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// some html-attributes |
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if ( isset($link_args['html_class']) ) { $html_attribs['class'] = $link_args['html_class']; } |
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if ( isset($link_args['title']) ) { $html_attribs['title'] = ' ' . $link_args['title'] . ' '; } |
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if ( isset($link_args['target']) ) { |
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// get MetaItem where target-information (e.g. name of target frameset, wrapperpage, ...) is stored |
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if ( $mi = $this->ic_navigationtargets->getMetaItem($link_args['target']) ) { |
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// get name of targetframe from MetaItem |
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if ($targetframe = $mi->getAttribute('targetframe')) { $html_attribs['target'] = $targetframe; } |
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} |
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} |
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|
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// "href" |
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if (isset($link_args['href'])) { |
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$html_attribs['href'] = $link_args['href']; |
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} else { |
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|
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// filter "$link_args" through valid keys of output-args and return valid hash of output-args |
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$outputargs = $this->state->getOutputArguments($link_args); |
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|
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// get complete url-parameters from outputargs |
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$querystring = $this->httplib->getRequestString($outputargs); |
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$html_attribs['href'] = '?' . $querystring; |
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} |
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|
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// build html-link |
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$html_attribstring = getAttribStringFromHash($html_attribs, ' ', '=', '"'); |
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// TODO: use "get_HtmlTag()" |
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$link = "<a $html_attribstring>$innerHTML</a>"; |
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|
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// return built link |
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return $link; |
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|
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} |
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|
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|
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// ------------------------------------------------------------------------------------ |
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function getLink_ByName($name) { |
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// ($mi = $this->ic_menustructure->getMetaItem($name)) || trigger_error("could not get link \"$name\"", E_USER_ERROR); |
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if ( $mi = $this->ic_menustructure->getMetaItem($name) ) { |
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return $this->getLink_ByArgs($mi->getAttributes()); |
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} |
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} |
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|
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|
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|
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// -------------------------------------------------------------------------------------------------------------------------------- |
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// generates output |
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// -------------------------------------------------------------------------------------------------------------------------------- |
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|
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// ------------------------------------------------------------------------------------ |
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function genArea_ErrorPage( $args ) { |
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|
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global $site; |
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|
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if ($mi_template_effective = $this->ic_pagetemplates->getMetaItem('error_404')) { |
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$attribs = $mi_template_effective->getAttributes(); |
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$file_error404 = $site->getAttribute('path_pages') . $attribs['file']; |
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if (file_exists($file_error404)) { |
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// TODO: pass "$args['reason']" to show on error-page |
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$this->genArea( array('pseudopage' => 'error_404') ); |
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} else { |
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$die_dump_tracking = $this->dumpState_get(); |
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$die_message = " |
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{$args['reason']} <br> |
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<br> |
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While trying to open a proper page for bringing this error to you (\"error-404-template\"), another error occoured. <br> |
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At most times this means that no physical file representing the \"error-404-template\" exists. <br> |
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For your information: \"file_exists('$file_error404')\" returned \"false\". <br> |
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<br> |
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We also supply a variable-dump here, feel free sending a copy of it to us at <a href=\"mailto:x4@ilo.de\">x4@ilo.de</a>. <br> |
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------------------------------------------------------------------------------------ <br> |
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dump of arguments to \"\$tracking->genArea_ErrorPage()\": <br> |
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(virtualpage=\"{$args['virtualpage']}\", pseudopage=\"{$args['pseudopage']}\") <br> |
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------------------------------------------------------------------------------------ <br> |
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dump of tracking: <br> |
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$die_dump_tracking <br> |
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------------------------------------------------------------------------------------ <br> |
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"; |
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die($die_message); |
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} |
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} |
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|
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} |
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|
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|
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// ------------------------------------------------------------------------------------ |
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function genArea($args) { |
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|
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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// declaration/initialization/globalization of variables |
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|
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// important globals (these two objects are used *everywhere* to do (almost) *anything*) |
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global $site; |
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global $tracking; |
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|
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// some other variables which should be global but are not as important |
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// for benchmarking |
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global $benchmark_all; |
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global $glbl_bool_benchmarking; |
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|
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// some variables used in page |
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global $pageargs; |
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global $areaargs; |
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|
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// some local ones |
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|
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// should the result of "genArea()" be returned instead of printed out? |
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$bool_return = 0; |
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|
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|
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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// configuration ... |
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|
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// ... dependent on arguments to this function |
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if (isset($args['returnContent'])) { $bool_return = 1; } |
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|
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$pageargs = array(); |
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$areaargs = array(); |
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|
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|
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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// determination of proper virtualpage / pseudopage |
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|
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// init |
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$virtualpage_name = ''; |
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$pseudopage_name = ''; |
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$genpage_name = ''; |
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$pagetemplate_name = ''; |
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|
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// get name of virtual-page from tracking-state by default |
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$virtualpage_name = $this->getStatusAttribute('virtualpage'); |
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|
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// modify virtual-page and set pseudo-page, if given |
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isset($args['virtualpage']) && ($virtualpage_name = $args['virtualpage']); |
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isset($args['pseudopage']) && ($pseudopage_name = $args['pseudopage']); |
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|
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// get virtual-page |
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if ( $mi_VirtualPage = $this->ic_virtualpages->getMetaItem($virtualpage_name) ) { |
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// remember reference to current virtual-page in "$tracking->ic_virtualpage_current" |
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$this->ic_virtualpage_current = $mi_VirtualPage; |
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$vpname = $mi_VirtualPage->getAttribute('name'); |
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print "process-object for vp \"$vpname\".<br>"; |
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|
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$tracking->loadModule('main/common.library'); |
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$pObj =& new ObjectHandler_User(); |
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$pObj->call('_list'); |
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} |
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|
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// is a pseudo-page given? |
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if ($pseudopage_name) { |
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$genpage_name = $pseudopage_name; |
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} else { |
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$genpage_name = $virtualpage_name; |
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} |
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|
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|
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|
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$tmp_bool_ok = 0; |
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// get virtual-page-MetaItem of gen-page |
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if ( $mi_VirtualPage = $this->ic_virtualpages->getMetaItem($genpage_name) ) { |
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|
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// virtual-page-redirection |
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// current: one level |
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// TODO: n-levels |
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if ($redir = $mi_VirtualPage->getAttribute('redirect')) { |
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$genpage_name = $redir; |
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$mi_VirtualPage = $this->ic_virtualpages->getMetaItem($genpage_name); |
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} |
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|
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// determine page-template |
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$pagetemplate_name = $mi_VirtualPage->getAttribute('pagetemplate'); |
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if ($mi_PageTemplate = $this->ic_pagetemplates->getMetaItem($pagetemplate_name)) { |
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$tmp_bool_ok = 1; |
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} |
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|
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} |
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|
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|
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|
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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// detect errors |
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|
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// if something's wrong with determining the virtual-page or the current page-template, |
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// we deliver an error-page (current: 404 - file not found) via loading the "error_404" page-template. |
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// we have to handle a special case here and test the physical file for existance before |
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// calling "$this->genArea", because else we would get a recursive loop here and |
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// soon (immediately) end up with a php-error: "PHP has encountered a Stack overflow" |
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if (!$tmp_bool_ok) { |
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$err_reason = "Something went wrong when determining template for effective page \"$genpage_name\" in \"\$tracking->genArea()\"."; |
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$this->genArea_ErrorPage( array('reason' => $err_reason, 'virtualpage' => $virtualpage_name, 'pseudopage' => $pseudopage_name) ); |
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|
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//die("could not find requested virtual page *and* could not find entry for generating an error-page in \"ic_pagetemplates\""); |
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exit; |
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} |
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|
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|
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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// startup rendering |
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|
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if ($bool_return) { ob_start(); } |
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|
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|
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|
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|
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// get all attributes of current page-template |
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$attribs = $mi_PageTemplate->getAttributes(); |
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|
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// physical file to be included |
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$includefile = $site->getAttribute('path_pages') . $attribs['file']; |
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|
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// test physical file for existance |
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// was: |
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// if ( !file_exists($includefile) ) { trigger_error("could not include file \"$includefile\", quitting...", E_USER_ERROR); } |
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// is: |
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if ( !file_exists($includefile) ) { |
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// was: |
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// $this->genArea( array('pseudopage' => 'error_404') ); |
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// exit; |
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// is: |
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$err_reason = "Could not find physical file \"$includefile\" when trying to open template \"$pagetemplate_name\" for effective page \"$genpage_name\" in \"\$tracking->genArea()\"."; |
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$this->genArea_ErrorPage( array('reason' => $err_reason, 'virtualpage' => $virtualpage_name, 'pseudopage' => $pseudopage_name) ); |
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exit; |
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} |
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|
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|
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// ------------------------ |
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// render page |
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|
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// shall we render a body and stuff? |
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if ( isset($attribs['bool_HTMLBody']) && ($attribs['bool_HTMLBody']) ) { |
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|
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// if we shall render a body, then here comes the "body-begin" |
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$this->genArea( array('pseudopage' => 'static.content.begin') ); |
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|
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if ( isset($attribs['form']) ) { print "<form name=\"mf\">\n"; } |
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|
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} |
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|
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// get page-arguments |
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if ($mi_VirtualPage) { |
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$pageargs = $mi_VirtualPage->getAttribute('pageargs'); |
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$pageargs['virtualpage_effective'] = $mi_VirtualPage->getAttribute('name'); |
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} |
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|
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if ( isset($attribs['bool_PageHeader']) && isset($pageargs['pageheader']) ) { print $pageargs['pageheader'] . "\n"; } |
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|
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if (isset($args['areaargs'])) { |
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$areaargs = $args['areaargs']; |
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} |
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|
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// here comes the include |
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$include_retval = include($includefile); |
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|
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// shall we render a body and stuff? |
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if ( isset($attribs['bool_HTMLBody']) && ($attribs['bool_HTMLBody']) ) { |
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|
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if ( isset($attribs['form']) ) { print "<input type=\"image\" width=\"0\" height=\"0\"></form>\n"; } |
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|
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// if we shall render a body, then here comes the "body-end" |
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$this->genArea( array('pseudopage' => 'static.content.end') ); |
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|
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// dump our state |
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//$this->dumpState(); |
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|
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} |
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|
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if ($bool_return) { |
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$retval = ob_get_contents(); |
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ob_end_clean(); |
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return $retval; |
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} |
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|
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} |
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|
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|
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|
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|
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function authenticate($user, $pass) { |
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$dq = new DataQuery(); |
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$dq->setQuery("SELECT * FROM users WHERE nachname='$user' AND passwd='$pass';"); |
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$dq->query(); |
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if ($dq->getRowCount()) { |
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$dq->next(); |
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$entry = $dq->getResult(); |
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$this->setStatusAttribute('login::userid', $entry['user_id']); |
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return 1; |
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} |
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} |
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|
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function loadLibrary($libname) { |
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global $site; |
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$site->loadLibrary($libname); |
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} |
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|
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function loadModule($modulename) { |
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global $site; |
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$site->loadModule($modulename); |
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} |
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|
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function redirect($args) { |
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$this->httplib->redirect($args); |
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} |
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|
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} |
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?> |
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