<?php /** @file */
namespace Zotlabs\Module;
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;
$showCommitMsg = false;
$hidePageHistory = false;
$pageHistory = array();
$local_observer = null;
$resource_id = '';
// 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
$wikiheaderName = t('Wiki');
$wikiheaderPage = t('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;
$hidePageHistory = true;
$showCommitMsg = false;
break;
case 3:
// /wiki/channel/wiki -> No page was specified, so redirect to Home.md
$wikiUrlName = urlencode(argv(2));
goaway('/'.argv(0).'/'.argv(1).'/'.$wikiUrlName.'/Home');
case 4:
// GET /wiki/channel/wiki/page
// Fetch the wiki info and determine observer permissions
$wikiUrlName = urlencode(argv(2));
$pageUrlName = urlencode(argv(3));
$w = wiki_exists_by_name($channel['channel_id'], $wikiUrlName);
if(!$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));
}
if($perms['write']) {
$wiki_editor = true;
} else {
$wiki_editor = false;
}
} else {
$wiki_editor = true;
}
$wikiheaderName = urldecode($wikiUrlName);
$wikiheaderPage = urldecode($pageUrlName);
$p = wiki_get_page_content(array('resource_id' => $resource_id, 'pageUrlName' => $pageUrlName));
if(!$p['success']) {
notice('Error retrieving page content' . EOL);
goaway('/'.argv(0).'/'.argv(1).'/'.$wikiUrlName);
}
$content = ($p['content'] !== '' ? $p['content'] : '"# New page\n"');
$hide_editor = false;
$showPageControls = $wiki_editor;
$showNewWikiButton = $wiki_owner;
$showNewPageButton = $wiki_editor;
$hidePageHistory = false;
$showCommitMsg = true;
$pageHistory = wiki_page_history(array('resource_id' => $resource_id, 'pageUrlName' => $pageUrlName));
break;
default: // Strip the extraneous URL components
goaway('/'.argv(0).'/'.argv(1).'/'.$wikiUrlName.'/'.$pageUrlName);
}
// Render the Markdown-formatted page content in HTML
require_once('library/markdown.php');
$wikiModalID = random_string(3);
$wikiModal = replace_macros(
get_markup_template('generic_modal.tpl'), array(
'$id' => $wikiModalID,
'$title' => t('Revision Comparison'),
'$ok' => t('Revert'),
'$cancel' => t('Cancel')
)
);
$o .= replace_macros(get_markup_template('wiki.tpl'),array(
'$wikiheaderName' => $wikiheaderName,
'$wikiheaderPage' => $wikiheaderPage,
'$hideEditor' => $hide_editor,
'$showPageControls' => $showPageControls,
'$showNewWikiButton'=> $showNewWikiButton,
'$showNewPageButton'=> $showNewPageButton,
'$hidePageHistory' => $hidePageHistory,
'$showCommitMsg' => $showCommitMsg,
'$channel' => $channel['channel_address'],
'$resource_id' => $resource_id,
'$page' => $pageUrlName,
'$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:'), '', ''),
'$pageName' => array('pageName', t('Enter the name of the new page:'), '', ''),
'$pageRename' => array('pageRename', t('Enter the new name:'), '', ''),
'$commitMsg' => array('commitMsg', '', '', '', '', 'placeholder="(optional) Enter a custom message when saving the page..."'),
'$pageHistory' => $pageHistory['history'],
'$wikiModal' => $wikiModal,
'$wikiModalID' => $wikiModalID,
'$commit' => 'HEAD'
));
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');
$html = purify_html(Markdown($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);
$channel = get_channel_by_nick($nick);
// Determine if observer has permission to create wiki
$observer_hash = get_observer_hash();
// Only the channel owner can create a wiki, at least until we create a
// more detail permissions framework
if (local_channel() !== intval($channel['channel_id'])) {
goaway('/'.argv(0).'/'.$nick.'/');
}
$wiki = array();
// Generate new wiki info from input name
$wiki['rawName'] = $_POST['wikiName'];
$wiki['htmlName'] = escape_tags($_POST['wikiName']);
$wiki['urlName'] = urlencode($_POST['wikiName']);
if($wiki['urlName'] === '') {
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, $wiki, $acl);
if ($r['success']) {
$homePage = wiki_create_page('Home', $r['item']['resource_id']);
if(!$homePage['success']) {
notice('Wiki created, but error creating Home page.');
goaway('/wiki/'.$nick.'/'.$wiki['urlName']);
}
goaway('/wiki/'.$nick.'/'.$wiki['urlName'].'/'.$homePage['page']['urlName']);
} else {
notice('Error creating wiki');
goaway('/wiki');
}
}
// Delete a wiki
if ((argc() > 3) && (argv(2) === 'delete') && (argv(3) === 'wiki')) {
$nick = argv(1);
$channel = get_channel_by_nick($nick);
// Only the channel owner can delete a wiki, at least until we create a
// more detail permissions framework
if (local_channel() !== intval($channel['channel_id'])) {
logger('Wiki delete permission denied.' . EOL);
json_return_and_die(array('message' => 'Wiki delete permission denied.', 'success' => false));
} 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('message' => '', 'success' => true));
} else {
logger('Error deleting wiki: ' . $resource_id);
json_return_and_die(array('message' => 'Error deleting wiki', '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 a page
$channel = get_channel_by_nick($nick);
if (local_channel() !== intval($channel['channel_id'])) {
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied. ' . EOL);
json_return_and_die(array('success' => false));
}
}
$name = $_POST['name']; //Get new page name
if(urlencode(escape_tags($_POST['name'])) === '') {
json_return_and_die(array('message' => 'Error creating page. Invalid name.', 'success' => false));
}
$page = wiki_create_page($name, $resource_id);
if ($page['success']) {
json_return_and_die(array('url' => '/'.argv(0).'/'.argv(1).'/'.$page['wiki']['urlName'].'/'.urlencode($page['page']['urlName']), '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));
$observer_hash = get_observer_hash();
if (local_channel() !== intval($channel['channel_id'])) {
$perms = wiki_get_permissions($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')) {
$resource_id = $_POST['resource_id'];
$pageUrlName = $_POST['name'];
$pageHtmlName = escape_tags($_POST['name']);
$content = $_POST['content']; //Get new content
$commitMsg = $_POST['commitMsg'];
if ($commitMsg === '') {
$commitMsg = 'Updated ' . $pageHtmlName;
}
$nick = argv(1);
$channel = get_channel_by_nick($nick);
// Determine if observer has permission to save content
if (local_channel() !== intval($channel['channel_id'])) {
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied. ' . EOL);
json_return_and_die(array('success' => false));
}
}
$saved = wiki_save_page(array('resource_id' => $resource_id, 'pageUrlName' => $pageUrlName, 'content' => $content));
if($saved['success']) {
$ob = \App::get_observer();
$commit = wiki_git_commit(array(
'commit_msg' => $commitMsg,
'resource_id' => $resource_id,
'observer' => $ob,
'files' => array($pageUrlName.'.md')
));
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')) {
$resource_id = $_POST['resource_id'];
$pageUrlName = $_POST['name'];
$nick = argv(1);
$channel = get_channel_by_nick($nick);
// Determine if observer has permission to read content
if (local_channel() !== intval($channel['channel_id'])) {
$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,
'pageUrlName' => $pageUrlName
));
json_return_and_die(array('historyHTML' => $historyHTML, 'message' => '', 'success' => true));
}
// Delete a page
if ((argc() === 4) && (argv(2) === 'delete') && (argv(3) === 'page')) {
$resource_id = $_POST['resource_id'];
$pageUrlName = $_POST['name'];
if ($pageUrlName === 'Home') {
json_return_and_die(array('message' => 'Cannot delete Home','success' => false));
}
// Determine if observer has permission to delete pages
$nick = argv(1);
$channel = get_channel_by_nick($nick);
if (local_channel() !== intval($channel['channel_id'])) {
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied. ' . EOL);
json_return_and_die(array('success' => false));
}
}
$deleted = wiki_delete_page(array('resource_id' => $resource_id, 'pageUrlName' => $pageUrlName));
if($deleted['success']) {
$ob = \App::get_observer();
$commit = wiki_git_commit(array(
'commit_msg' => 'Deleted ' . $pageUrlName,
'resource_id' => $resource_id,
'observer' => $ob,
'files' => null
));
if($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 deleting page', 'success' => false));
}
}
// Revert a page
if ((argc() === 4) && (argv(2) === 'revert') && (argv(3) === 'page')) {
$resource_id = $_POST['resource_id'];
$pageUrlName = $_POST['name'];
$commitHash = $_POST['commitHash'];
// Determine if observer has permission to revert pages
$nick = argv(1);
$channel = get_channel_by_nick($nick);
if (local_channel() !== intval($channel['channel_id'])) {
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied.' . EOL);
json_return_and_die(array('success' => false));
}
}
$reverted = wiki_revert_page(array('commitHash' => $commitHash, 'resource_id' => $resource_id, 'pageUrlName' => $pageUrlName));
if($reverted['success']) {
json_return_and_die(array('content' => $reverted['content'], 'message' => '', 'success' => true));
} else {
json_return_and_die(array('content' => '', 'message' => 'Error reverting page', 'success' => false));
}
}
// Compare page revisions
if ((argc() === 4) && (argv(2) === 'compare') && (argv(3) === 'page')) {
$resource_id = $_POST['resource_id'];
$pageUrlName = $_POST['name'];
$compareCommit = $_POST['compareCommit'];
$currentCommit = $_POST['currentCommit'];
// Determine if observer has permission to revert pages
$nick = argv(1);
$channel = get_channel_by_nick($nick);
if (local_channel() !== intval($channel['channel_id'])) {
$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('success' => false));
}
}
$compare = wiki_compare_page(array('currentCommit' => $currentCommit, 'compareCommit' => $compareCommit, 'resource_id' => $resource_id, 'pageUrlName' => $pageUrlName));
if($compare['success']) {
json_return_and_die(array('diff' => $compare['diff'], 'message' => '', 'success' => true));
} else {
json_return_and_die(array('diff' => '', 'message' => 'Error comparing page', 'success' => false));
}
}
// Rename a page
if ((argc() === 4) && (argv(2) === 'rename') && (argv(3) === 'page')) {
$resource_id = $_POST['resource_id'];
$pageUrlName = $_POST['oldName'];
$pageNewName = $_POST['newName'];
if ($pageUrlName === 'Home') {
json_return_and_die(array('message' => 'Cannot rename Home','success' => false));
}
if(urlencode(escape_tags($pageNewName)) === '') {
json_return_and_die(array('message' => 'Error renaming page. Invalid name.', 'success' => false));
}
// Determine if observer has permission to rename pages
$nick = argv(1);
$channel = get_channel_by_nick($nick);
if (local_channel() !== intval($channel['channel_id'])) {
$observer_hash = get_observer_hash();
$perms = wiki_get_permissions($resource_id, intval($channel['channel_id']), $observer_hash);
if(!$perms['write']) {
logger('Wiki write permission denied. ' . EOL);
json_return_and_die(array('success' => false));
}
}
$renamed = wiki_rename_page(array('resource_id' => $resource_id, 'pageUrlName' => $pageUrlName, 'pageNewName' => $pageNewName));
logger('$renamed: ' . json_encode($renamed));
if($renamed['success']) {
$ob = \App::get_observer();
$commit = wiki_git_commit(array(
'commit_msg' => 'Renamed ' . urldecode($pageUrlName) . ' to ' . $renamed['page']['htmlName'],
'resource_id' => $resource_id,
'observer' => $ob,
'files' => array($pageUrlName . '.md', $renamed['page']['fileName']),
'all' => true
));
if($commit['success']) {
json_return_and_die(array('name' => $renamed['page'], '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 renaming page', 'success' => false));
}
}
//notice('You must be authenticated.');
json_return_and_die(array('message' => 'You must be authenticated.', 'success' => false));
}
}
