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, $preface, $title, $body;
  20         public $meta = [];
  21
  22         function __construct($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], $meta[2]); # [property => content]
  42                 }
  43
  44                 @list ($this->preface, $this->title, $this->body) =
  45                         preg_split('{<h2>(.*?)</h2>\s*}s', $this->raw, 2, PREG_SPLIT_DELIM_CAPTURE);
  46         }
  47
  48         function __get($col)
  49         {
  50                 return $this->$col = $this->$col();  # run method and cache
  51         }
  52
  53         function handler()
  54         {
  55                 $path = $this->link;
  56                 $this->path = '';
  57                 $this->restricted = FALSE;
  58                 while (TRUE) {
  59                         if (file_exists("$path/.private")) {
  60                                 $this->restricted = $path;
  61                         }
  62
  63                         if (file_exists("$path/index.php")) {
  64                                 return $path;
  65                         }
  66
  67                         $up = strrpos($path, '/');
  68                         $this->path = substr($path, $up) . $this->path;
  69                         $path = substr($path, 0, $up);
  70                         if ($up === FALSE) {
  71                                 break;
  72                         }
  73                 }
  74                 return;
  75         }
  76
  77         function safetitle()
  78         {
  79                 return trim($this->meta['og:title'] ?? strip_tags($this->title));
  80         }
  81         function name()
  82         {
  83                 return $this->safetitle ?: $this->link;
  84         }
  85
  86         function last()
  87         {
  88                 return filemtime($this->page);
  89         }
  90         function lastiso()
  91         {
  92                 return date(DATE_ATOM, $this->last);
  93         }
  94
  95         function dateparts()
  96         {
  97                 preg_match('< / (\d{4}) [/-] (\d{2}) (?:- (\d{2}) )? - >x', $this->page, $ymd);
  98                 array_shift($ymd);
  99                 return $ymd;
 100         }
 101         function dateiso()
 102         {
 103                 return implode('-', $this->dateparts()) . 'T12:00:00+02:00';
 104         }
 105         function date()
 106         {
 107                 return showdate($this->dateparts);
 108         }
 109
 110         function story()
 111         {
 112                 if ( preg_match('{
 113                         (?: < (?: p | figure [^>]* ) >\s* )+ (<img\ [^>]*>) | \n <hr\ />
 114                 }x', $this->body, $img, PREG_OFFSET_CAPTURE) ) {
 115                         # strip part after matching divider (image)
 116                         if (isset($img[1])) {
 117                                 $this->img = $img[1][0];
 118                         }
 119                         return substr($this->body, 0, $img[0][1]);
 120                 }
 121                 return $this->body;
 122         }
 123
 124         function teaser()
 125         {
 126                 if ($override = @$this->meta['og:description']) {
 127                         # prefer specific page description if found in metadata
 128                         return $override;
 129                 }
 130
 131                 if (preg_match('{
 132                         </h2> (?: \s+ | <p\sclass="nav\b.*?</p> | <div[^>]*> )* <p> \s* (.*?) </p>
 133                 }sx', $this->raw, $bodyp, PREG_OFFSET_CAPTURE)) {
 134                         # fallback paragraph contents following the page header
 135                         if ($bodyp[1][1] < 256) {
 136                                 return $bodyp[1][0];
 137                         }
 138                 }
 139
 140                 # starting paragraph for documents without title (assumed simple/partial)
 141                 if (strpos($this->raw, '<h2') === FALSE and preg_match('{
 142                         \A (?: <div [^>]*> \s* )* <p> \s* (.*?) </p>
 143                 }sx', $this->raw, $bodyp)) {
 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                         $this->image
 171                 );
 172         }
 173 }
 174
 175 class PageSearch
 176 {
 177         function __construct($path = '.')
 178         {
 179                 $this->iterator = new RecursiveCallbackFilterIterator(
 180                         new RecursiveDirectoryIterator($path),
 181                         function ($current) {
 182                                 if ($current->getFilename()[0] === '.') {
 183                                         # skip hidden files and directories
 184                                         return FALSE;
 185                                 }
 186                                 if ($current->isLink()) {
 187                                         # ignore symlinks, original contents only
 188                                         return FALSE;
 189                                 }
 190                                 if ($current->isDir()) {
 191                                         # traverse subdirectories unless untracked in any amount
 192                                         return !file_exists("$current/.gitignore");
 193                                 }
 194                                 # match **/*.html
 195                                 return preg_match('/(?<!\.inc)\.html$/', $current->getFilename());
 196                         }
 197                 );
 198         }
 199
 200         function files()
 201         {
 202                 # order alphabetically by link
 203                 $dir = iterator_to_array(new RecursiveIteratorIterator($this->iterator));
 204                 array_walk($dir, function (&$row, $name) {
 205                         # prepare values for sorting (directory index first)
 206                         $row = preg_replace('{/index\.html$}', '', $name);
 207                 });
 208                 asort($dir);
 209                 return $dir;
 210         }
 211 }