<?php
require_once('include/html2bbcode.php');
require_once('include/hubloc.php');
// Sample module for importing conversation data from Reflection CMS. Some preparation was used to
// dump relevant posts, categories and comments into individual JSON files, and also JSON dump of
// the user table to search for avatars. Importation was also batched in sets of 20 posts per page
// visit so as to survive shared hosting process limits. This provides some clues as how to handle
// WordPress imports, which use a somewhat similar DB structure. The batching and individual files
// might not be needed in VPS environments. As such this could be considered an extreme test case, but
// the importation was successful in all regards using this code. The module URL was visited repeatedly
// with a browser until all the posts had been imported.
define('REDMATRIX_IMPORTCHANNEL','mike');
define('REFLECT_EXPORTUSERNAME','mike');
define('REFLECT_BLOGNAME','Diary and Other Rantings');
define('REFLECT_BASEURL','http://example.com/');
define('REFLECT_USERFILE','user.json');
// set to true if you need to process everything again
define('REFLECT_OVERWRITE',false);
// we'll only process a small number of posts at a time on a shared host.
define('REFLECT_MAXPERRUN',30);
function reflect_get_channel() {
// this will be the channel_address or nickname of the red channel
$c = q("select * from channel left join xchan on channel_hash = xchan_hash
where channel_address = '%s' limit 1",
dbesc(REDMATRIX_IMPORTCHANNEL)
);
return $c[0];
}
function refimport_content(&$a) {
$channel = reflect_get_channel();
// load the user file. We need that to find the commenter's avatars
$u = file_get_contents(REFLECT_USERFILE);
if($u) {
$users = json_decode($u,true);
}
$ignored = 0;
$processed = 0;
$files = glob('article/*');
if(! $files)
return;
foreach($files as $f) {
$s = file_get_contents($f);
$j = json_decode($s,true);
if(! $j)
continue;
$arr = array();
// see if this article was already processed
$r = q("select * from item where mid = '%s' and uid = %d limit 1",
dbesc($j['guid']),
intval($channel['channel_id'])
);
if($r) {
if(REFLECT_OVERWRITE)
$arr['id'] = $r[0]['id'];
else {
$ignored ++;
rename($f,str_replace('article','done',$f));
continue;
}
}
$arr['uid'] = $channel['channel_account_id'];
$arr['aid'] = $channel['channel_id'];
$arr['mid'] = $arr['parent_mid'] = $j['guid'];
$arr['created'] = $j['created'];
$arr['edited'] = $j['edited'];
$arr['author_xchan'] = $channel['channel_hash'];
$arr['owner_xchan'] = $channel['channel_hash'];
$arr['app'] = REFLECT_BLOGNAME;
$arr['item_flags'] = ITEM_ORIGIN|ITEM_WALL|ITEM_THREAD_TOP;
$arr['verb'] = ACTIVITY_POST;
// this is an assumption
$arr['comment_policy'] = 'contacts';
// import content. In this case the content is XHTML.
$arr['title'] = html2bbcode($j['title']);
$arr['title'] = htmlspecialchars($arr['title'],ENT_COMPAT,'UTF-8',false);
$arr['body'] = html2bbcode($j['body']);
$arr['body'] = htmlspecialchars($arr['body'],ENT_COMPAT,'UTF-8',false);
// convert relative urls to other posts on that service to absolute url on our service.
$arr['body'] = preg_replace_callback("/\[url\=\/+article\/(.*?)\](.*?)\[url\]/",'reflect_article_callback',$arr['body']);
// also import any photos
$arr['body'] = preg_replace_callback("/\[img(.*?)\](.*?)\[\/img\]/",'reflect_photo_callback',$arr['body']);
// add categories
if($j['taxonomy'] && is_array($j['taxonomy']) && count($j['taxonomy'])) {
$arr['term'] = array();
foreach($j['taxonomy'] as $tax) {
$arr['term'][] = array(
'uid' => $channel['channel_id'],
'type' => TERM_CATEGORY,
'otype' => TERM_OBJ_POST,
'term' => trim($tax['name']),
'url' => $channel['xchan_url'] . '?f=&cat=' . urlencode(trim($tax['name']))
);
}
}
// store the item
if($arr['id'])
item_store_update($arr);
else
item_store($arr);
// if there are any comments, process them
// $comment['registered'] is somebody with an account on the system. Others are mostly anonymous
if($j['comments']) {
foreach($j['comments'] as $comment) {
$user = (($comment['registered']) ? reflect_find_user($users,$comment['author']) : null);
reflect_comment_store($channel,$arr,$comment,$user);
}
}
$processed ++;
if(REFLECT_MAXPERRUN && $processed > REFLECT_MAXPERRUN)
break;
}
return 'processed: ' . $processed . EOL . 'completed: ' . $ignored . EOL;
}
function reflect_article_callback($matches) {
return '[zrl=' . z_root() . '/display/'. $matches[1] . ']' . $matches[2] . '[/zrl]';
}
function reflect_photo_callback($matches) {
if(strpos($matches[2],'http') !== false)
return $matches[0];
$prefix = REFLECT_BASEURL;
$x = z_fetch_url($prefix.$matches[2],true);
$hash = basename($matches[2]);
if($x['success']) {
$channel = reflect_get_channel();
require_once('include/photos.php');
$p = photo_upload($channel,$channel,
array('data' => $x['body'],
'resource_id' => str_replace('-','',$hash),
'filename' => $hash . '.jpg',
'type' => 'image/jpeg',
'visible' => false
)
);
if($p['success'])
$newlink = $p['resource_id'] . '-0.jpg';
// import photo and locate the link for it.
return '[zmg]' . z_root() . '/photo/' . $newlink . '[/zmg]';
}
// no replacement. Leave it alone.
return $matches[0];
}
function reflect_find_user($users,$name) {
if($users) {
foreach($users as $x) {
if($x['name'] === $name) {
return $x;
}
}
}
return false;
}
function reflect_comment_store($channel,$post,$comment,$user) {
// if the commenter was the channel owner, use their hubzilla xchan
if($comment['author'] === REFLECT_EXPORTUSERNAME && $comment['registered'])
$hash = $channel['xchan_hash'];
else {
// we need a unique hash for the commenter. We don't know how many may have supplied
// http://yahoo.com as their URL, so we'll use their avatar guid if they have one.
// anonymous folks may get more than one xchan_hash if they commented more than once.
$hash = (($comment['registered'] && $user) ? $user['avatar'] : '');
if(! $hash)
$hash = random_string() . '.unknown';
// create an xchan for them which will also import their profile photo
// they will have a network type 'unknown'.
$x = array(
'hash' => $hash,
'guid' => $hash,
'url' => (($comment['url']) ? $comment['url'] : z_root()),
'photo' => (($user) ? REFLECT_BASEURL . $user['avatar'] : z_root() . '/' . get_default_profile_photo()),
'name' => $comment['author']
);
xchan_store($x);
}
$arr = array();
$r = q("select * from item where mid = '%s' and uid = %d limit 1",
dbesc($comment['guid']),
intval($channel['channel_id'])
);
if($r) {
if(REFLECT_OVERWRITE)
$arr['id'] = $r[0]['id'];
else
return;
}
// this is a lot like storing the post except for subtle differences, like parent_mid, flags, author_xchan,
// and we don't have a comment edited field so use creation date
$arr['uid'] = $channel['channel_account_id'];
$arr['aid'] = $channel['channel_id'];
$arr['mid'] = $comment['guid'];
$arr['parent_mid'] = $post['mid'];
$arr['created'] = $comment['created'];
$arr['edited'] = $comment['created'];
$arr['author_xchan'] = $hash;
$arr['owner_xchan'] = $channel['channel_hash'];
$arr['item_flags'] = ITEM_ORIGIN|ITEM_WALL;
$arr['verb'] = ACTIVITY_POST;
$arr['comment_policy'] = 'contacts';
$arr['title'] = html2bbcode($comment['title']);
$arr['title'] = htmlspecialchars($arr['title'],ENT_COMPAT,'UTF-8',false);
$arr['body'] = html2bbcode($comment['body']);
$arr['body'] = htmlspecialchars($arr['body'],ENT_COMPAT,'UTF-8',false);
$arr['body'] = preg_replace_callback("/\[url\=\/+article\/(.*?)\](.*?)\[url\]/",'reflect_article_callback',$arr['body']);
$arr['body'] = preg_replace_callback("/\[img(.*?)\](.*?)\[\/img\]/",'reflect_photo_callback',$arr['body']);
// logger('comment: ' . print_r($arr,true));
if($arr['id'])
item_store_update($arr);
else
item_store($arr);
}
