page: store placeholder values in $Page object

[minimedit.git] / article.inc.php

diff --git a/article.inc.php b/article.inc.php
index da1836890a7c096dfc77b48d18da2705ce791326..cff69ffdec449dcd44fccd1299abc2a793aa1d3e 100644 (file)
--- a/article.inc.php
+++ b/article.inc.php
@@ -16,13 +16,14 @@ function showdate($parts)
 
 class ArchiveArticle
 {
-       public $raw, $preface, $title, $body;
-       public $meta = [];
+       public $raw, $title, $body; # file contents
+       public $meta = [];  # head metadata properties
+       public $place = []; # template variables replaced in render()
 
        function __construct($path)
        {
                $this->page = preg_replace('{^\.(?:/|$)}', '', $path);
-               $this->link = preg_replace('{(?:/index)?\.html$}', '', $this->page);
+               $this->link = preg_replace('{(?:(?:/|^)index)?\.html$}', '', $this->page);
                $this->raw($this->page);
        }
 
@@ -41,8 +42,13 @@ class ArchiveArticle
                        $this->meta = array_combine($meta[1], $meta[2]); # [property => content]
                }
 
-               @list ($this->preface, $this->title, $this->body) =
-                       preg_split('{<h2>(.*?)</h2>\s*}s', $this->raw, 2, PREG_SPLIT_DELIM_CAPTURE);
+               // find significant contents
+               $this->body = preg_replace('{<aside\b.*?</aside>}s', '', $this->raw);
+               if (preg_match('{<h2>(.*?)</h2>\s*(.*)}s', $this->body, $titlematch)) {
+                       list (, $this->title, $this->body) = $titlematch;
+               }
+
+               return $this->raw;
        }
 
        function __get($col)
@@ -50,6 +56,36 @@ class ArchiveArticle
                return $this->$col = $this->$col();  # run method and cache
        }
 
+       function handler()
+       {
+               $path = $this->link;
+               $this->path = '';
+               $this->restricted = FALSE;
+               while (TRUE) {
+                       if (file_exists("$path/.private")) {
+                               $this->restricted = $path;
+                       }
+
+                       if (file_exists("$path/index.php")) {
+                               return $path;
+                       }
+
+                       $up = strrpos($path, '/');
+                       $this->path = substr($path, $up) . $this->path;
+                       $path = substr($path, 0, $up);
+                       if ($up === FALSE) {
+                               break;
+                       }
+               }
+               return;
+       }
+
+       function restricted()
+       {
+               $this->handler;
+               return $this->restricted;
+       }
+
        function safetitle()
        {
                return trim($this->meta['og:title'] ?? strip_tags($this->title));
@@ -86,7 +122,7 @@ class ArchiveArticle
        function story()
        {
                if ( preg_match('{
-                       \n (?: < (?: p | figure [^>]* ) >\s* )+ (<img\ [^>]*>) | \n <hr\ />
+                       (?: < (?: p | figure [^>]* ) >\s* )+ (<img\ [^>]*>) | \n <hr\ />
                }x', $this->body, $img, PREG_OFFSET_CAPTURE) ) {
                        # strip part after matching divider (image)
                        if (isset($img[1])) {
@@ -104,19 +140,10 @@ class ArchiveArticle
                        return $override;
                }
 
+               # paragraph contents following the page header if any
                if (preg_match('{
-                       </h2> (?: \s+ | <p\sclass="nav\b.*?</p> | <div[^>]*> )* <p> \s* (.*?) </p>
-               }sx', $this->raw, $bodyp, PREG_OFFSET_CAPTURE)) {
-                       # fallback paragraph contents following the page header
-                       if ($bodyp[1][1] < 256) {
-                               return $bodyp[1][0];
-                       }
-               }
-
-               # starting paragraph for documents without title (assumed simple/partial)
-               if (strpos($this->raw, '<h2') === FALSE and preg_match('{
-                       \A (?: <div [^>]*> \s* )* <p> \s* (.*?) </p>
-               }sx', $this->raw, $bodyp)) {
+                       \G (?> \s+ | <div [^>]*> | \[\[[^]]*\]\] )* <p> \s* (.*?) </p>
+               }sx', $this->body, $bodyp, 0)) {
                        return $bodyp[1];
                }
        }
@@ -146,6 +173,73 @@ class ArchiveArticle
                        $this->image
                );
        }
+
+       function widget($name, $params = [])
+       {
+               $path = stream_resolve_include_path("widget/$name.php");
+               if (!file_exists($path)) {
+                       return '<strong class="warn"><em>'.$name.'</em> ontbreekt</strong>';
+               }
+
+               ob_start();
+               $Page = clone $this;
+               $Page->handler = $Page->handler . $Page->path; // .= with explicit getter
+               $Page->path = '';
+               foreach ($params as $param) {
+                       if ($set = strpos($param, '=')) {
+                               $Page->place[ substr($param, 0, $set) ] = substr($param, $set + 1);
+                       }
+                       elseif (!empty($param)) {
+                               $Page->path .= '/'.$param;
+                       }
+               }
+               $Page->link .= $Page->path;
+               try {
+                       include "widget/$name.php";
+                       return ob_get_clean();
+               }
+               catch (Exception $e) {
+                       return sprintf('<strong class="warn">%s</strong>',
+                               "fout in <em>$name</em>: {$e->getMessage()}"
+                       );
+               }
+       }
+
+       function render()
+       {
+               $doc = ob_get_clean();
+
+               if (!empty($this->place['warn'])) {
+                       $warn = '<p class="warn">[[warn]]</p>';
+                       if ($offset = strpos($doc, '</h2>')) {
+                               $doc = substr_replace($doc, "\n\n".$warn, $offset + 5, 0);
+                       }
+                       else {
+                               $doc = $warn . "\n\n" . $doc;
+                       }
+               }
+
+               # keep either login or logout parts depending on user level
+               global $User;
+               $hideclass = $User && property_exists($User, 'login') && $User->login ? 'logout' : 'login';
+               $doc = preg_replace('{\s*<([a-z]+) class="'.$hideclass.'">.*?</\1>}s', '', $doc);
+
+               return preg_replace_callback(
+                       '{ \[\[ ([^] ]+) ([^]]*) \]\] }x',
+                       function ($sub) {
+                               list ($placeholder, $name, $params) = $sub;
+                               $html = $this->place[$name] ??
+                                       $this->widget($name, explode(' ', $params));
+                               if (empty($html) or $html[0] != '<') {
+                                       $html = "<span>$html</span>";
+                               }
+                               $attr = sprintf(' data-dyn="%s"', is_numeric($name) ? '' : $name.$params);
+                               # contents with identifier in first tag
+                               return preg_replace( '/(?=>)/', $attr, $html, 1);
+                       },
+                       $doc
+               );
+       }
 }
 
 class PageSearch