<?php
namespace Zotlabs\Module;/** @file */
class Wiki extends \Zotlabs\Web\Controller {
function init() {
// Determine which channel's wikis to display to the observer
$nick = null;
if (argc() > 1)
$nick = argv(1); // if the channel name is in the URL, use that
if (!$nick && local_channel()) { // if no channel name was provided, assume the current logged in channel
$channel = \App::get_channel();
if ($channel && $channel['channel_address']) {
$nick = $channel['channel_address'];
goaway(z_root() . '/wiki/' . $nick);
}
}
if (!$nick) {
notice(t('You must be logged in to see this page.') . EOL);
goaway('/login');
}
}
function get() {
require_once('include/wiki.php');
require_once('include/acl_selectors.php');
// TODO: Combine the interface configuration into a unified object
// Something like $interface = array('new_page_button' => false, 'new_wiki_button' => false, ...)
$wiki_owner = false;
$showNewWikiButton = false;
$pageHistory = array();
$local_observer = null;
$resource_id = '';
$pagename = '';
// init() should have forced the URL to redirect to /wiki/channel so assume argc() > 1
$nick = argv(1);
$channel = get_channel_by_nick($nick); // The channel who owns the wikis being viewed
if(! $channel) {
notice('Invalid channel' . EOL);
goaway('/' . argv(0));
}
// Determine if the observer is the channel owner so the ACL dialog can be populated
if (local_channel() === intval($channel['channel_id'])) {
$local_observer = \App::get_channel();
$wiki_owner = true;
// Obtain the default permission settings of the channel
$channel_acl = array(
'allow_cid' => $local_observer['channel_allow_cid'],
'allow_gid' => $local_observer['channel_allow_gid'],
'deny_cid' => $local_observer['channel_deny_cid'],
'deny_gid' => $local_observer['channel_deny_gid']
);
// Initialize the ACL to the channel default permissions
$x = array(
'lockstate' => (( $local_observer['channel_allow_cid'] ||
$local_observer['channel_allow_gid'] ||
$local_observer['channel_deny_cid'] ||
$local_observer['channel_deny_gid'])
? 'lock' : 'unlock'),
'acl' => populate_acl($channel_acl),
'bang' => ''
);
} else {
// Not the channel owner
$channel_acl = $x = array();
}
switch (argc()) {
case 2:
// Configure page template
$wikiheader = t('Wiki Sandbox');
$content = '"# Wiki Sandbox\n\nContent you **edit** and **preview** here *will not be saved*."';
$hide_editor = false;
$showPageControls = false;
$showNewWikiButton = $wiki_owner;
$showNewPageButton = false;
break;
case 3:
// /wiki/channel/wiki -> No page was specified, so redirect to Home.md
goaway('/'.argv(0).'/'.argv(1).'/'.argv(2).'/Home.md');
case 4:
// GET /wiki/channel/wiki/page
// Fetch the wiki info and determine observer permissions
$wikiname = argv(2);
$pagename = argv(3);
$w = wiki_exists_by_name($channel['channel_id'], $wikiname);
if(!$w['resource_id']) {
notice('Wiki not found' . EOL);
goaway('/'.argv(0).'/'.argv(1));
}
$resource_id = $w['resource_id'];
if (!$wiki_owner) {
// Check for observer permissions
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['read']) {
notice('Permission denied.' . EOL);
goaway('/'.argv(0).'/'.argv(1));
}
}
$wikiheader = rawurldecode($wikiname) . ': ' . rawurldecode($pagename); // show wiki name and page
$p = wiki_get_page_content(array('resource_id' => $resource_id, 'page' => $pagename));
if(!$p['success']) {
notice('Error retrieving page content' . EOL);
goaway('/'.argv(0).'/'.argv(1).'/'.argv(2));
}
$content = ($p['content'] !== '' ? $p['content'] : '"# New page\n"');
$hide_editor = false;
$showPageControls = $wiki_owner;
$showNewWikiButton = $wiki_owner;
$showNewPageButton = $wiki_owner;
$pageHistory = wiki_page_history(array('resource_id' => $resource_id, 'page' => $pagename));
break;
default: // Strip the extraneous URL components
goaway('/'.argv(0).'/'.argv(1).'/'.argv(2).'/'.argv(3));
}
// Render the Markdown-formatted page content in HTML
require_once('library/markdown.php');
$o .= replace_macros(get_markup_template('wiki.tpl'),array(
'$wikiheader' => $wikiheader,
'$hideEditor' => $hide_editor,
'$showPageControls' => $showPageControls,
'$showNewWikiButton'=> $showNewWikiButton,
'$showNewPageButton'=> $showNewPageButton,
'$channel' => $channel['channel_address'],
'$resource_id' => $resource_id,
'$page' => $pagename,
'$lockstate' => $x['lockstate'],
'$acl' => $x['acl'],
'$bang' => $x['bang'],
'$content' => $content,
'$renderedContent' => Markdown(json_decode($content)),
'$wikiName' => array('wikiName', t('Enter the name of your new wiki:'), '', ''),
'$pageName' => array('pageName', t('Enter the name of the new page:'), '', ''),
'$pageHistory' => $pageHistory['history']
));
head_add_js('library/ace/ace.js'); // Ace Code Editor
return $o;
}
function post() {
require_once('include/wiki.php');
// /wiki/channel/preview
// Render mardown-formatted text in HTML for preview
if((argc() > 2) && (argv(2) === 'preview')) {
$content = $_POST['content'];
require_once('library/markdown.php');
$html = Markdown($content);
json_return_and_die(array('html' => $html, 'success' => true));
}
// Create a new wiki
// /wiki/channel/create/wiki
if ((argc() > 3) && (argv(2) === 'create') && (argv(3) === 'wiki')) {
$nick = argv(1);
// Determine if observer has permission to create wiki
$observer_hash = get_observer_hash();
if (local_channel()) {
$channel = \App::get_channel();
} else {
$channel = get_channel_by_nick($nick);
// Figure out who the page owner is.
$perms = get_all_perms(intval($channel['channel_id']), $observer_hash);
// TODO: Create a new permission setting for wiki analogous to webpages. Until
// then, use webpage permissions
if (!$perms['write_pages']) {
notice(t('Permission denied.') . EOL);
goaway('/'.argv(0).'/'.argv(1).'/'.argv(2));
}
}
$name = escape_tags(urlencode($_POST['wikiName'])); //Get new wiki name
if($name === '') {
notice('Error creating wiki. Invalid name.');
goaway('/wiki');
}
// Get ACL for permissions
$acl = new \Zotlabs\Access\AccessList($channel);
$acl->set_from_array($_POST);
$r = wiki_create_wiki($channel, $observer_hash, $name, $acl);
if ($r['success']) {
$homePage = wiki_create_page('Home.md', $r['item']['resource_id']);
if(!$homePage['success']) {
notice('Wiki created, but error creating Home page.');
goaway('/wiki/'.$nick.'/'.$name);
}
goaway('/wiki/'.$nick.'/'.$name.'/Home.md');
} else {
notice('Error creating wiki');
goaway('/wiki');
}
}
// Delete a wiki
if ((argc() > 3) && (argv(2) === 'delete') && (argv(3) === 'wiki')) {
$nick = argv(1);
// Determine if observer has permission to create wiki
if (local_channel()) {
$channel = \App::get_channel();
} else {
$channel = get_channel_by_nick($nick);
$observer_hash = get_observer_hash();
// Figure out who the page owner is.
$perms = get_all_perms(intval($channel['channel_id']), $observer_hash);
// TODO: Create a new permission setting for wiki analogous to webpages. Until
// then, use webpage permissions
if (!$perms['write_pages']) {
logger('Wiki delete permission denied.' . EOL);
json_return_and_die(array('success' => false));
}
}
$resource_id = $_POST['resource_id'];
$deleted = wiki_delete_wiki($resource_id);
if ($deleted['success']) {
json_return_and_die(array('success' => true));
} else {
logger('Error deleting wiki: ' . $resource_id);
json_return_and_die(array('success' => false));
}
}
// Create a page
if ((argc() === 4) && (argv(2) === 'create') && (argv(3) === 'page')) {
$nick = argv(1);
$resource_id = $_POST['resource_id'];
// Determine if observer has permission to create wiki
if (local_channel()) {
$channel = \App::get_channel();
} else {
$channel = get_channel_by_nick($nick);
$observer_hash = get_observer_hash();
// Figure out who the page owner is.
$perms = get_all_perms(intval($channel['channel_id']), $observer_hash);
// TODO: Create a new permission setting for wiki analogous to webpages. Until
// then, use webpage permissions
if (!$perms['write_pages']) {
logger('Wiki editing permission denied.' . EOL);
json_return_and_die(array('success' => false));
}
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied. Read only.' . EOL);
json_return_and_die(array('success' => false));
}
}
$name = escape_tags(urlencode($_POST['name'])); //Get new page name
if($name === '') {
json_return_and_die(array('message' => 'Error creating page. Invalid name.', 'success' => false));
}
$page = wiki_create_page($name . '.md', $resource_id);
if ($page['success']) {
json_return_and_die(array('url' => '/'.argv(0).'/'.argv(1).'/'.$page['wiki'].'/'.$name.'.md', 'success' => true));
} else {
logger('Error creating page');
json_return_and_die(array('message' => 'Error creating page.', 'success' => false));
}
}
// Fetch page list for a wiki
if ((argc() === 5) && (argv(2) === 'get') && (argv(3) === 'page') && (argv(4) === 'list')) {
$resource_id = $_POST['resource_id']; // resource_id for wiki in db
$channel = get_channel_by_nick(argv(1));
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['read']) {
logger('Wiki read permission denied.' . EOL);
json_return_and_die(array('pages' => null, 'message' => 'Permission denied.', 'success' => false));
}
$page_list_html = widget_wiki_pages(array(
'resource_id' => $resource_id,
'refresh' => true,
'channel' => argv(1)));
json_return_and_die(array('pages' => $page_list_html, 'message' => '', 'success' => true));
}
// Save a page
if ((argc() === 4) && (argv(2) === 'save') && (argv(3) === 'page')) {
$nick = argv(1);
$resource_id = $_POST['resource_id'];
$pagename = escape_tags(urlencode($_POST['name']));
$content = escape_tags($_POST['content']); //Get new content
// Determine if observer has permission to save content
if (local_channel()) {
$channel = \App::get_channel();
} else {
$channel = get_channel_by_nick($nick);
$observer_hash = get_observer_hash();
// Figure out who the page owner is.
$perms = get_all_perms(intval($channel['channel_id']), $observer_hash);
// TODO: Create a new permission setting for wiki analogous to webpages. Until
// then, use webpage permissions
if (!$perms['write_pages']) {
logger('Wiki editing permission denied.' . EOL);
json_return_and_die(array('success' => false));
}
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied. Read only.' . EOL);
json_return_and_die(array('success' => false));
}
}
$saved = wiki_save_page(array('resource_id' => $resource_id, 'name' => $pagename, 'content' => $content));
if($saved['success']) {
$ob = \App::get_observer();
$commit = wiki_git_commit(array(
'commit_msg' => 'Updated ' . $pagename,
'resource_id' => $resource_id,
'observer' => $ob,
'files' => array($pagename)
));
if($commit['success']) {
json_return_and_die(array('message' => 'Wiki git repo commit made', 'success' => true));
} else {
json_return_and_die(array('message' => 'Error making git commit','success' => false));
}
} else {
json_return_and_die(array('message' => 'Error saving page', 'success' => false));
}
}
// Update page history
// /wiki/channel/history/page
if ((argc() === 4) && (argv(2) === 'history') && (argv(3) === 'page')) {
$nick = argv(1);
$resource_id = $_POST['resource_id'];
$pagename = escape_tags(urlencode($_POST['name']));
// Determine if observer has permission to view content
if (local_channel()) {
$channel = \App::get_channel();
} else {
$channel = get_channel_by_nick($nick);
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if (!$perms['read']) {
logger('Wiki read permission denied.' . EOL);
json_return_and_die(array('historyHTML' => '', 'message' => 'Permission denied.', 'success' => false));
}
}
$historyHTML = widget_wiki_page_history(array(
'resource_id' => $resource_id,
'page' => $pagename
));
json_return_and_die(array('historyHTML' => $historyHTML, 'message' => '', 'success' => true));
}
//notice('You must be authenticated.');
json_return_and_die(array('message' => 'You must be authenticated.', 'success' => false));
}
}
