article.inc.php

   1 <?php
   2 global $monthname;
   3 $monthname = ['?',
   4         'januari', 'februari', 'maart', 'april', 'mei', 'juni',
   5         'juli', 'augustus', 'september', 'oktober', 'november', 'december',
   6 ];
   7
   8 function showdate($parts)
   9 {
  10         global $monthname;
  11         return implode(' ', array_filter([
  12                 intval(@$parts[2]), $parts[1] > 0 ? $monthname[intval($parts[1])] : '', $parts[0],
  13                 count($parts) > 5 ? "$parts[3]:$parts[4]" : '',
  14         ]));
  15 }
  16
  17 class ArchiveArticle
  18 {
  19         public $raw, $title, $body; # file contents
  20         public $meta = [];  # head metadata properties
  21
  22         function __construct($path)
  23         {
  24                 $this->page = preg_replace('{^\.(?:/|$)}', '', $path);
  25                 $this->link = preg_replace('{(?:(?:/|^)index)?\.html$}', '', $this->page);
  26                 $this->raw($this->page);
  27         }
  28
  29         function raw($page)
  30         {
  31                 if (!file_exists($page)) {
  32                         return;
  33                 }
  34                 $this->raw = file_get_contents($page);
  35
  36                 if (preg_match_all('{
  37                         \G <meta \s+ property="( [^"]+ )" \s+ content="( [^"]* )" > \s*
  38                 }x', $this->raw, $meta)) {
  39                         $matchlen = array_sum(array_map('strlen', $meta[0]));
  40                         $this->raw = substr($this->raw, $matchlen); # delete matched contents
  41                         $this->meta = array_combine($meta[1], $meta[2]); # [property => content]
  42                 }
  43
  44                 // find significant contents
  45                 $this->body = preg_replace('{<aside\b.*?</aside>}s', '', $this->raw);
  46                 if (preg_match('{<h2>(.*?)</h2>\s*(.*)}s', $this->body, $titlematch)) {
  47                         list (, $this->title, $this->body) = $titlematch;
  48                 }
  49         }
  50
  51         function __get($col)
  52         {
  53                 return $this->$col = $this->$col();  # run method and cache
  54         }
  55
  56         function handler()
  57         {
  58                 $path = $this->link;
  59                 $this->path = '';
  60                 $this->restricted = FALSE;
  61                 while (TRUE) {
  62                         if (file_exists("$path/.private")) {
  63                                 $this->restricted = $path;
  64                         }
  65
  66                         if (file_exists("$path/index.php")) {
  67                                 return $path;
  68                         }
  69
  70                         $up = strrpos($path, '/');
  71                         $this->path = substr($path, $up) . $this->path;
  72                         $path = substr($path, 0, $up);
  73                         if ($up === FALSE) {
  74                                 break;
  75                         }
  76                 }
  77                 return;
  78         }
  79
  80         function restricted()
  81         {
  82                 $this->handler;
  83                 return $this->restricted;
  84         }
  85
  86         function safetitle()
  87         {
  88                 return trim($this->meta['og:title'] ?? strip_tags($this->title));
  89         }
  90         function name()
  91         {
  92                 return $this->safetitle ?: $this->link;
  93         }
  94
  95         function last()
  96         {
  97                 return filemtime($this->page);
  98         }
  99         function lastiso()
 100         {
 101                 return date(DATE_ATOM, $this->last);
 102         }
 103
 104         function dateparts()
 105         {
 106                 preg_match('< / (\d{4}) [/-] (\d{2}) (?:- (\d{2}) )? - >x', $this->page, $ymd);
 107                 array_shift($ymd);
 108                 return $ymd;
 109         }
 110         function dateiso()
 111         {
 112                 return implode('-', $this->dateparts()) . 'T12:00:00+02:00';
 113         }
 114         function date()
 115         {
 116                 return showdate($this->dateparts);
 117         }
 118
 119         function story()
 120         {
 121                 if ( preg_match('{
 122                         (?: < (?: p | figure [^>]* ) >\s* )+ (<img\ [^>]*>) | \n <hr\ />
 123                 }x', $this->body, $img, PREG_OFFSET_CAPTURE) ) {
 124                         # strip part after matching divider (image)
 125                         if (isset($img[1])) {
 126                                 $this->img = $img[1][0];
 127                         }
 128                         return substr($this->body, 0, $img[0][1]);
 129                 }
 130                 return $this->body;
 131         }
 132
 133         function teaser()
 134         {
 135                 if ($override = @$this->meta['og:description']) {
 136                         # prefer specific page description if found in metadata
 137                         return $override;
 138                 }
 139
 140                 # paragraph contents following the page header if any
 141                 if (preg_match('{
 142                         \G (?> \s+ | <div [^>]*> | \[\[[^]]*\]\] )* <p> \s* (.*?) </p>
 143                 }sx', $this->body, $bodyp, 0)) {
 144                         return $bodyp[1];
 145                 }
 146         }
 147
 148         function img()
 149         {
 150                 $this->img = NULL;
 151                 $this->story;
 152                 return $this->img;
 153         }
 154         function image()
 155         {
 156                 if ($override = @$this->meta['og:image']) {
 157                         # prefer specific page image if found in metadata
 158                         return $override;
 159                 }
 160
 161                 if ( preg_match('/\bsrc="([^"]*)"/', $this->img, $src) ) {
 162                         return $src[1];
 163                 }
 164         }
 165         function thumb($size = '300x')
 166         {
 167                 if (!$this->image or $this->image[0] !== '/') return;
 168                 return preg_replace(
 169                         ['{^(?:/thumb/[^/]*)?}', '/\.groot(?=\.\w+$)/'], ["thumb/$size", ''],
 170                         $this->image
 171                 );
 172         }
 173
 174         function widget($name, $params = [])
 175         {
 176                 $path = stream_resolve_include_path("widget/$name.php");
 177                 if (!file_exists($path)) {
 178                         return '<strong class="warn"><em>'.$name.'</em> ontbreekt</strong>';
 179                 }
 180
 181                 ob_start();
 182                 $Page = clone $this;
 183                 $Page->handler = $Page->handler . $Page->path; // .= with explicit getter
 184                 $Page->path = '';
 185                 $Place = $GLOBALS['Place'];
 186                 foreach ($params as $param) {
 187                         if ($set = strpos($param, '=')) {
 188                                 $Place[ substr($param, 0, $set) ] = substr($param, $set + 1);
 189                         }
 190                         elseif (!empty($param)) {
 191                                 $Page->path .= '/'.$param;
 192                         }
 193                 }
 194                 $Page->link .= $Page->path;
 195                 try {
 196                         include "widget/$name.php";
 197                         return ob_get_clean();
 198                 }
 199                 catch (Exception $e) {
 200                         return sprintf('<strong class="warn">%s</strong>',
 201                                 "fout in <em>$name</em>: {$e->getMessage()}"
 202                         );
 203                 }
 204         }
 205 }
 206
 207 class PageSearch
 208 {
 209         function __construct($path = '.')
 210         {
 211                 $this->iterator = new RecursiveCallbackFilterIterator(
 212                         new RecursiveDirectoryIterator($path),
 213                         function ($current) {
 214                                 if ($current->getFilename()[0] === '.') {
 215                                         # skip hidden files and directories
 216                                         return FALSE;
 217                                 }
 218                                 if ($current->isLink()) {
 219                                         # ignore symlinks, original contents only
 220                                         return FALSE;
 221                                 }
 222                                 if ($current->isDir()) {
 223                                         # traverse subdirectories unless untracked in any amount
 224                                         return !file_exists("$current/.gitignore");
 225                                 }
 226                                 # match **/*.html
 227                                 return preg_match('/(?<!\.inc)\.html$/', $current->getFilename());
 228                         }
 229                 );
 230         }
 231
 232         function files()
 233         {
 234                 # order alphabetically by link
 235                 $dir = iterator_to_array(new RecursiveIteratorIterator($this->iterator));
 236                 array_walk($dir, function (&$row, $name) {
 237                         # prepare values for sorting (directory index first)
 238                         $row = preg_replace('{/index\.html$}', '', $name);
 239                 });
 240                 asort($dir);
 241                 return $dir;
 242         }
 243 }