<?php //display the index of threads in a folder

/* ====================================================================================================================== */

/* NoNonsense Forum v22 © Copyright (CC-BY) Kroc Camen 2012

licenced under Creative Commons Attribution 3.0 <creativecommons.org/licenses/by/3.0/deed.en_GB>

you may do whatever you want to this code as long as you give credit to Kroc Camen, <camendesign.com>

*/

//bootstrap the forum; you should read that file first

require_once './start.php';

//submitted info for making a new thread

//(name / password already handled in 'start.php')

define ('TITLE', safeGet (@$_POST['title'], SIZE_TITLE));

define ('TEXT', safeGet (@$_POST['text'], SIZE_TEXT ));

//can the current user post new threads in the current forum?

//(posting replies is dependent on the the thread -- if locked -- so tested in 'thread.php')

define ('CAN_POST', FORUM_ENABLED && (

//- if the user is a moderator or member of the current forum, they can post

IS_MOD || IS_MEMBER ||

//- if the forum is unlocked (mods will have to log in to see the form)

!FORUM_LOCK

));

/* ======================================================================================================================

new thread submitted

====================================================================================================================== */

//has the user submitted a new thread?

//(`AUTH` will be true if username and password submitted and correct, `TITLE` and `TEXT` are checked to not be blank)

if (CAN_POST && AUTH && TITLE && TEXT) {

//the file on disk is a simplified version of the title; see 'lib/functions.php' for `safeTransliterate`

$translit = safeTransliterate (TITLE);

//if a thread already exsits with that name, append a number until an available filename is found.

//we also check for directories with the same name so as to avoid problematic Apache behaviour

$c = 0; do $file = $translit.($c++ ? '_'.($c-1) : '');

while (file_exists ("$file") || file_exists ("$file.rss"));

//write out the new thread as an RSS file:

$rss = new DOMTemplate (file_get_contents (FORUM_LIB.'rss-template.xml'));

$rss->set (array (

'/rss/channel/title' => TITLE,

'/rss/channel/link' => FORUM_URL.url ('thread', PATH_URL, $file),

//the thread's first post

'/rss/channel/item/title' => TITLE,

'/rss/channel/item/link' => FORUM_URL.url ('thread', PATH_URL, $file).

'#'.base_convert (microtime (), 10, 36),

'/rss/channel/item/author' => NAME,

'/rss/channel/item/pubDate' => gmdate ('r'),

'/rss/channel/item/description' => formatText (TEXT)

//remove the locked / deleted categories

))->remove ('//category');

file_put_contents ("$file.rss", $rss->html ()) or require FORUM_LIB.'error_permissions.php';

//regenerate the folder's RSS file

indexRSS ();

//redirect to newley created thread

header ('Location: '.FORUM_URL.url ('thread', PATH_URL, $file), true, 303);

exit;

}

/* ======================================================================================================================

template the page

====================================================================================================================== */

//first load the list of threads in the forum so that we can determine the number of pages and validate the page number,

//the thread list won't be used until further down after templating begins

if ($threads = preg_grep ('/\.rss$/', scandir ('.'))) {

//order by last modified date

array_multisort (array_map ('filemtime', $threads), SORT_DESC, $threads);

//get sticky list, trimming any files that no longer exist

//(the use of `array_intersect` will only return filenames in `sticky.txt` that were also in the directory)

if ($stickies = array_intersect (

//`file` returns NULL on failure, so we can cast it to an array to get an array with one blank item,

//then `array_filter` removes blank items. this way saves having to check if the file exists first

array_filter ((array) @file ('sticky.txt', FILE_IGNORE_NEW_LINES)), $threads

)) {

//order the stickies by reverse date order

array_multisort (array_map ('filemtime', $stickies), SORT_DESC, $stickies);

//remove the stickies from the thread list

$threads = array_diff ($threads, $stickies);

}

//handle a rounding problem with working out the number of pages (PHP 5.3 has a fix for this)

$PAGES = count ($threads) % FORUM_THREADS == 1 ? floor (count ($threads) / FORUM_THREADS)

: ceil (count ($threads) / FORUM_THREADS);

//validate the given page number; an invalid page number returns the first instead

$PAGE = !PAGE || PAGE > $PAGES ? 1 : PAGE;

} else {

$PAGES = 1; $PAGE = 1;

}

/* load the template into DOM where we can manipulate it:

---------------------------------------------------------------------------------------------------------------------- */

//(see 'lib/domtemplate.php' or <camendesign.com/dom_templating> for more details. `prepareTemplate` can be found in

// 'lib/functions.php' and handles some shared templating done across all pages)

$template = prepareTemplate (

THEME_ROOT.'index.html',

//`THEME_TITLE` is defined in 'theme.config.php' if it exists, else 'theme.config.default.php'

sprintf (THEME_TITLE,

//if in a sub-forum use the folder name, else the site's name

PATH ? SUBFORUM : FORUM_NAME,

//if on page 2 or greater, include the page number in the title

$PAGE>1 ? sprintf (THEME_TITLE_PAGENO, $PAGE) : ''

),

//provide the current page parameters to construct the signin link

'index', '', PATH_URL, $PAGE > 1 ? $PAGE : 0

)->setValue (

//the RSS feed for this forum / sub-forum

'a#nnf_rss@href', FORUM_PATH.PATH_URL.'index.xml'

)->remove (array (

//if threads can't be added (forum is disabled / locked, user is not moderator / member),

//remove the "add thread" link and anything else (like the input form) related to posting

'#nnf_add, #nnf_new-form' => !CAN_POST,

//if the forum is not thread-locked (only mods can post, anybody can reply) then remove the warning message

'#nnf_forum-lock-threads' => FORUM_LOCK != 'threads' || IS_MOD,

//if the forum is not post-locked (only mods can post / reply) then remove the warning message

'#nnf_forum-lock-posts' => FORUM_LOCK != 'posts' || IS_MOD || IS_MEMBER

));

//an 'about.html' file can be provided to add a description or other custom HTML to the forum / sub-forum,

//for translations, 'about_en.html' can be used where 'en' is the language code for the translation

//(see 'lang.example.php' in the themes folder for more details on translation)

if ($about = @array_shift (array_filter (array (

@file_get_contents ('about_'.LANG.'.html'), @file_get_contents ('about.html')

)))) {

//load the 'about.html' file and insert it into the page

$template->setValue ('#nnf_about', $about, true);

} else {

//no file? remove the element reserved for it

$template->remove ('#nnf_about');

}

/* sub-forums

---------------------------------------------------------------------------------------------------------------------- */

if ($folders = array_filter (

//get a list of folders:

//include only directories, but ignore directories starting with ‘.’ and the users / themes folders

preg_grep ('/^(\.|users$|themes$|lib$)/', scandir ('.'), PREG_GREP_INVERT), 'is_dir'

)) {

//get the dummy list-item to repeat (removes it and takes a copy)

$item = $template->repeat ('.nnf_folder');

foreach ($folders as $FOLDER) {

//the sorting (below) requires we be in the directory at hand to use `filemtime`

chdir ($FOLDER);

//check if / how the forum is locked

$lock = trim (@file_get_contents ('locked.txt'));

//get a list of files in the folder to determine which one is newest

$files = preg_grep ('/\.rss$/', scandir ('.'));

//order by last modified date

array_multisort (array_map ('filemtime', $files), SORT_DESC, $files);

//read the newest thread (folder could be empty though)

$last = ($xml = @simplexml_load_file ($files[0])) ? $xml->channel->item[0] : '';

//start applying the data to the template

$item->set (array (

'a.nnf_folder-name' => $FOLDER,

'a.nnf_folder-name@href' => url ('index', PATH_URL.safeURL ($FOLDER).'/')

//remove the lock icons if not required

))->remove (array (

'.nnf_lock-threads' => $lock != 'threads',

'.nnf_lock-posts' => $lock != 'posts'

));

//is there a last post in this sub-forum?

if ((bool) $last) {

$item->set (array (

//last post author name

'.nnf_post-author' => $last->author,

//last post time (human readable)

'time.nnf_post-time' => date (DATE_FORMAT, strtotime ($last->pubDate)),

//last post time (machine readable)

'time.nnf_post-time@datetime' => date ('c', strtotime ($last->pubDate)),

//link to the last post

'a.nnf_post-link@href' => substr ($last->link, strpos ($last->link, '/', 9))

))->remove (array (

//is the last author a mod?

'.nnf_post-author@class' => isMod ($last->author) ? false : 'mod'

));

} else {

//no last post, remove the template for it

$item->remove ('.nnf_subforum-post');

}

//attach the templated sub-forum item to the list

$item->next ();

chdir ('..');

}

} else {

//no sub-forums, remove the template stuff

$template->remove ('#nnf_folders');

}

/* threads

---------------------------------------------------------------------------------------------------------------------- */

if ($threads || @$stickies) {

//do the page links (stickies are not included in the count as they appear on all pages)

theme_pageList ($template, '', $PAGE, $PAGES);

//slice the full list into the current page

$threads = array_merge ($stickies, array_slice ($threads, ($PAGE-1) * FORUM_THREADS, FORUM_THREADS));

//get the dummy list-item to repeat (removes it and takes a copy)

$item = $template->repeat ('.nnf_thread');

//generate the list of threads with data, for the template

foreach ($threads as $file) if (

//read the file, and refer to the last post made

$xml = @simplexml_load_file ($file)

) if ( //get the last post in the thread

$last = &$xml->channel->item[0]

//apply the data to the template

) $item->set (array (

//thread title and URL

'a.nnf_thread-name' => $xml->channel->title,

'a.nnf_thread-name@href' => url ('thread', PATH_URL, pathinfo ($file, PATHINFO_FILENAME)),

//number of replies

'.nnf_thread-replies' => count ($xml->channel->item) - 1,

//last post info:

//link to the last post

'a.nnf_thread-post@href' => substr ($last->link, strpos ($last->link, '/', 9)),

//last post time (human readable)

'time.nnf_thread-time' => date (DATE_FORMAT, strtotime ($last->pubDate)),

//last post time (machine readable)

'time.nnf_thread-time@datetime' => date ('c', strtotime ($last->pubDate)),

//last post author

'.nnf_thread-author' => $last->author

))->remove (array (

//if the thread isn’t locked, remove the lock icon

'.nnf_thread-locked' => !$xml->channel->xpath ('category[.="locked"]'),

//if the thread isn't sticky, remove the 'sticky' class

'./@class' => !in_array ($file, $stickies) ? 'sticky' : false,

//if the thread isn't sticky, remove the sticky icon

'.nnf_thread-sticky' => !in_array ($file, $stickies)

//the lock-icon takes precedence over the sticky icon

|| $xml->channel->xpath ('category[.="locked"]'),

//is the last post author a mod?

'.nnf_thread-author@class' => !isMod ($last->author) ? 'mod' : false

//attach the templated sub-forum item to the list

))->next ();

} else {

//no threads, remove the template stuff

$template->remove ('#nnf_threads');

}

/* new thread form

---------------------------------------------------------------------------------------------------------------------- */

if (CAN_POST) $template->set (array (

//set the field values from what was typed in before //set the maximum field sizes

'input#nnf_title-field@value' => TITLE, 'input#nnf_title-field@maxlength' => SIZE_TITLE,

'input#nnf_name-field-http@value' => NAME,

'input#nnf_name-field@value' => NAME, 'input#nnf_name-field@maxlength' => SIZE_NAME,

'input#nnf_pass-field@value' => PASS, 'input#nnf_pass-field@maxlength' => SIZE_PASS,

'textarea#nnf_text-field' => TEXT, 'textarea#nnf_text-field@maxlength' => SIZE_TEXT

//is the user already signed-in?

))->remove (AUTH_HTTP

//don’t need the usual name / password fields and the deafult message for anonymous users

? '#nnf_name, #nnf_pass, #nnf_email, #nnf_error-none'

//user is not signed in, remove the "you are signed in as:" field and the message for signed in users

: '#nnf_name-http, #nnf_error-none-http'

//are new registrations allowed?

)->remove (FORUM_NEWBIES

? '#nnf_error-newbies' //yes: remove the warning message

: '#nnf_error-none' //no: remove the default message

//handle error messages

)->remove (array (

//if there's an error of any sort, remove the default messages

'#nnf_error-none, #nnf_error-none-http, #nnf_error-newbies' => !empty ($_POST),

//if the username & password are correct, remove the error message

'#nnf_error-auth' => empty ($_POST) || !TITLE || !TEXT || !NAME || !PASS || AUTH,

//if the password is valid, remove the error message

'#nnf_error-pass' => empty ($_POST) || !TITLE || !TEXT || !NAME || PASS,

//if the name is valid, remove the error message

'#nnf_error-name' => empty ($_POST) || !TITLE || !TEXT || NAME,

//if the message text is valid, remove the error message

'#nnf_error-text' => empty ($_POST) || !TITLE || TEXT,

//if the title is valid, remove the error message

'#nnf_error-title'=> empty ($_POST) || TITLE

));

//call the theme-specific templating function, in 'theme.php', before outputting

theme_custom ($template);

exit ($template->html ());

?>