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< ? php
/**
* Name : Facebook Post Connector
* Version : 1.3
* Author : Mike Macgirvin < http :// macgirvin . com / profile / mike >
* Author : Tobias Hößl < https :// github . com / CatoTH />
*
*/
/**
* Installing the Friendica / Facebook connector
*
* Detailed instructions how to use this plugin can be found at
* https :// github . com / friendica / friendica / wiki / How - to :- Friendica % E2 % 80 % 99 s - Facebook - connector
*
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* Vidoes and embeds will not be posted if there is no other content . Links
* and images will be converted to a format suitable for the Facebook API and
* long posts truncated - with a link to view the full post .
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*
* Facebook contacts will not be able to view private photos , as they are not able to
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* authenticate to your site to establish identity . We will address this
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* in a future release .
*/
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define ( 'FACEBOOK_DEFAULT_POLL_INTERVAL' , 5 ); // given in minutes
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require_once ( 'include/security.php' );
function fbpost_install () {
register_hook ( 'post_local' , 'addon/fbpost/fbpost.php' , 'fbpost_post_local' );
register_hook ( 'notifier_normal' , 'addon/fbpost/fbpost.php' , 'fbpost_post_hook' );
register_hook ( 'jot_networks' , 'addon/fbpost/fbpost.php' , 'fbpost_jot_nets' );
register_hook ( 'connector_settings' , 'addon/fbpost/fbpost.php' , 'fbpost_plugin_settings' );
register_hook ( 'enotify' , 'addon/fbpost/fbpost.php' , 'fbpost_enotify' );
register_hook ( 'queue_predeliver' , 'addon/fbpost/fbpost.php' , 'fbpost_queue_hook' );
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register_hook ( 'cron' , 'addon/fbpost/fbpost.php' , 'fbpost_cron' );
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}
function fbpost_uninstall () {
unregister_hook ( 'post_local' , 'addon/fbpost/fbpost.php' , 'fbpost_post_local' );
unregister_hook ( 'notifier_normal' , 'addon/fbpost/fbpost.php' , 'fbpost_post_hook' );
unregister_hook ( 'jot_networks' , 'addon/fbpost/fbpost.php' , 'fbpost_jot_nets' );
unregister_hook ( 'connector_settings' , 'addon/fbpost/fbpost.php' , 'fbpost_plugin_settings' );
unregister_hook ( 'enotify' , 'addon/fbpost/fbpost.php' , 'fbpost_enotify' );
unregister_hook ( 'queue_predeliver' , 'addon/fbpost/fbpost.php' , 'fbpost_queue_hook' );
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unregister_hook ( 'cron' , 'addon/fbpost/fbpost.php' , 'fbpost_cron' );
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}
/* declare the fbpost_module function so that /fbpost url requests will land here */
function fbpost_module () {}
// If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
// If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
/**
* @ param App $a
*/
function fbpost_init ( & $a ) {
if ( $a -> argc != 2 )
return ;
$nick = $a -> argv [ 1 ];
if ( strlen ( $nick ))
$r = q ( " SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1 " ,
dbesc ( $nick )
);
if ( ! ( isset ( $r ) && count ( $r )))
return ;
$uid = $r [ 0 ][ 'uid' ];
$auth_code = ( x ( $_GET , 'code' ) ? $_GET [ 'code' ] : '' );
$error = ( x ( $_GET , 'error_description' ) ? $_GET [ 'error_description' ] : '' );
if ( $error )
logger ( 'fbpost_init: Error: ' . $error );
if ( $auth_code && $uid ) {
$appid = get_config ( 'facebook' , 'appid' );
$appsecret = get_config ( 'facebook' , 'appsecret' );
$x = fetch_url ( 'https://graph.facebook.com/oauth/access_token?client_id='
. $appid . '&client_secret=' . $appsecret . '&redirect_uri='
. urlencode ( $a -> get_baseurl () . '/fbpost/' . $nick )
. '&code=' . $auth_code );
logger ( 'fbpost_init: returned access token: ' . $x , LOGGER_DATA );
if ( strpos ( $x , 'access_token=' ) !== false ) {
$token = str_replace ( 'access_token=' , '' , $x );
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if ( strpos ( $token , '&' ) !== false )
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$token = substr ( $token , 0 , strpos ( $token , '&' ));
set_pconfig ( $uid , 'facebook' , 'access_token' , $token );
set_pconfig ( $uid , 'facebook' , 'post' , '1' );
fbpost_get_self ( $uid );
}
}
}
/**
* @ param int $uid
*/
function fbpost_get_self ( $uid ) {
$access_token = get_pconfig ( $uid , 'facebook' , 'access_token' );
if ( ! $access_token )
return ;
$s = fetch_url ( 'https://graph.facebook.com/me/?access_token=' . $access_token );
if ( $s ) {
$j = json_decode ( $s );
set_pconfig ( $uid , 'facebook' , 'self_id' ,( string ) $j -> id );
}
}
// This is the POST method to the facebook settings page
// Content is posted to Facebook in the function facebook_post_hook()
/**
* @ param App $a
*/
function fbpost_post ( & $a ) {
$uid = local_user ();
if ( $uid ){
$fb_limited = get_config ( 'facebook' , 'crestrict' );
$value = (( x ( $_POST , 'post_by_default' )) ? intval ( $_POST [ 'post_by_default' ]) : 0 );
set_pconfig ( $uid , 'facebook' , 'post_by_default' , $value );
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$value = (( x ( $_POST , 'mirror_posts' )) ? intval ( $_POST [ 'mirror_posts' ]) : 0 );
set_pconfig ( $uid , 'facebook' , 'mirror_posts' , $value );
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$value = (( x ( $_POST , 'suppress_view_on_friendica' )) ? intval ( $_POST [ 'suppress_view_on_friendica' ]) : 0 );
set_pconfig ( $uid , 'facebook' , 'suppress_view_on_friendica' , $value );
$value = (( x ( $_POST , 'post_to_page' )) ? $_POST [ 'post_to_page' ] : " 0-0 " );
$values = explode ( " - " , $value );
set_pconfig ( $uid , 'facebook' , 'post_to_page' , $values [ 0 ]);
set_pconfig ( $uid , 'facebook' , 'page_access_token' , $values [ 1 ]);
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info ( t ( 'Settings updated.' ) . EOL );
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}
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return ;
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}
// Facebook settings form
/**
* @ param App $a
* @ return string
*/
function fbpost_content ( & $a ) {
if ( ! local_user ()) {
notice ( t ( 'Permission denied.' ) . EOL );
return '' ;
}
if ( ! service_class_allows ( local_user (), 'facebook_connect' )) {
notice ( t ( 'Permission denied.' ) . EOL );
return upgrade_bool_message ();
}
if ( $a -> argc > 1 && $a -> argv [ 1 ] === 'remove' ) {
del_pconfig ( local_user (), 'facebook' , 'post' );
info ( t ( 'Facebook Post disabled' ) . EOL );
}
$o = '' ;
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$fb_installed = false ;
if ( get_pconfig ( local_user (), 'facebook' , 'post' )) {
$access_token = get_pconfig ( local_user (), 'facebook' , 'access_token' );
if ( $access_token ) {
$s = fetch_url ( 'https://graph.facebook.com/me/feed?access_token=' . $access_token );
if ( $s ) {
$j = json_decode ( $s );
if ( isset ( $j -> data )) $fb_installed = true ;
}
}
}
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$appid = get_config ( 'facebook' , 'appid' );
if ( ! $appid ) {
notice ( t ( 'Facebook API key is missing.' ) . EOL );
return '' ;
}
$a -> page [ 'htmlhead' ] .= '<link rel="stylesheet" type="text/css" href="'
. $a -> get_baseurl () . '/addon/fbpost/fbpost.css' . '" media="all" />' . " \r \n " ;
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$o .= '<h3>' . t ( 'Facebook' ) . '</h3>' ;
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if ( ! $fb_installed ) {
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$o .= '<div id="fbpost-enable-wrapper">' ;
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//read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access
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$o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
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. $a -> get_baseurl () . '/fbpost/' . $a -> user [ 'nickname' ] . '&scope=export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,create_note,share_item,video_upload,status_update">' . t ( 'Install Facebook Post connector for this account.' ) . '</a>' ;
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$o .= '</div>' ;
}
if ( $fb_installed ) {
$o .= '<div id="fbpost-disable-wrapper">' ;
$o .= '<a href="' . $a -> get_baseurl () . '/fbpost/remove' . '">' . t ( 'Remove Facebook Post connector' ) . '</a></div>' ;
$o .= '<div id="fbpost-enable-wrapper">' ;
$o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
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. $a -> get_baseurl () . '/fbpost/' . $a -> user [ 'nickname' ] . '&scope=export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,create_note,share_item,video_upload,status_update">' . t ( 'Re-authenticate [This is necessary whenever your Facebook password is changed.]' ) . '</a>' ;
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$o .= '</div>' ;
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$o .= '<div id="fbpost-post-default-form">' ;
$o .= '<form action="fbpost" method="post" >' ;
$post_by_default = get_pconfig ( local_user (), 'facebook' , 'post_by_default' );
$checked = (( $post_by_default ) ? ' checked="checked" ' : '' );
$o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t ( 'Post to Facebook by default' ) . EOL ;
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$suppress_view_on_friendica = get_pconfig ( local_user (), 'facebook' , 'suppress_view_on_friendica' );
$checked = (( $suppress_view_on_friendica ) ? ' checked="checked" ' : '' );
$o .= '<input type="checkbox" name="suppress_view_on_friendica" value="1"' . $checked . '/>' . ' ' . t ( 'Suppress "View on friendica"' ) . EOL ;
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$mirror_posts = get_pconfig ( local_user (), 'facebook' , 'mirror_posts' );
$checked = (( $mirror_posts ) ? ' checked="checked" ' : '' );
$o .= '<input type="checkbox" name="mirror_posts" value="1"' . $checked . '/>' . ' ' . t ( 'Mirror wall posts from facebook to friendica.' ) . EOL ;
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// List all pages
$post_to_page = get_pconfig ( local_user (), 'facebook' , 'post_to_page' );
$page_access_token = get_pconfig ( local_user (), 'facebook' , 'page_access_token' );
$fb_token = get_pconfig ( $a -> user [ 'uid' ], 'facebook' , 'access_token' );
$url = 'https://graph.facebook.com/me/accounts' ;
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$x = fetch_url ( $url . " ?access_token= " . $fb_token );
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$accounts = json_decode ( $x );
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$o .= t ( " Post to page/group: " ) . " <select name='post_to_page'> " ;
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if ( intval ( $post_to_page ) == 0 )
$o .= " <option value='0-0' selected> " . t ( 'None' ) . " </option> " ;
else
$o .= " <option value='0-0'> " . t ( 'None' ) . " </option> " ;
foreach ( $accounts -> data as $account ) {
if ( is_array ( $account -> perms ))
if ( $post_to_page == $account -> id )
$o .= " <option value=' " . $account -> id . " - " . $account -> access_token . " ' selected> " . $account -> name . " </option> " ;
else
$o .= " <option value=' " . $account -> id . " - " . $account -> access_token . " '> " . $account -> name . " </option> " ;
}
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$url = 'https://graph.facebook.com/me/groups' ;
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$x = fetch_url ( $url . " ?access_token= " . $fb_token );
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$groups = json_decode ( $x );
foreach ( $groups -> data as $group ) {
if ( $post_to_page == $group -> id )
$o .= " <option value=' " . $group -> id . " -0' selected> " . $group -> name . " </option> " ;
else
$o .= " <option value=' " . $group -> id . " -0'> " . $group -> name . " </option> " ;
}
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$o .= " </select> " ;
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$o .= '<p><input type="submit" name="submit" value="' . t ( 'Save Settings' ) . '" /></form></div>' ;
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}
return $o ;
}
/**
* @ param App $a
* @ param null | object $b
*/
function fbpost_plugin_settings ( & $a , & $b ) {
$b .= '<div class="settings-block">' ;
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$b .= '<a href="fbpost"><h3>' . t ( 'Facebook' ) . '</a></h3>' ;
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$b .= '</div>' ;
}
/**
* @ param App $a
* @ param null | object $o
*/
function fbpost_plugin_admin ( & $a , & $o ){
$o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token ( " fbsave " ) . '">' ;
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$o .= '<h4>' . t ( 'Facebook API Key' ) . '</h4>' ;
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$appid = get_config ( 'facebook' , 'appid' );
$appsecret = get_config ( 'facebook' , 'appsecret' );
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$ret1 = q ( " SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1 " );
$ret2 = q ( " SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1 " );
if (( count ( $ret1 ) > 0 && $ret1 [ 0 ][ 'v' ] != $appid ) || ( count ( $ret2 ) > 0 && $ret2 [ 0 ][ 'v' ] != $appsecret )) $o .= t ( 'Error: it appears that you have specified the App-ID and -Secret in your .htconfig.php file. As long as they are specified there, they cannot be set using this form.<br><br>' );
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$o .= '<label for="fb_appid">' . t ( 'App-ID / API-Key' ) . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags ( $appid ? $appid : " " ) . '"><br style="clear: both;">' ;
$o .= '<label for="fb_appsecret">' . t ( 'Application secret' ) . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags ( $appsecret ? $appsecret : " " ) . '"><br style="clear: both;">' ;
$o .= '<input type="submit" name="fb_save_keys" value="' . t ( 'Save' ) . '">' ;
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}
/**
* @ param App $a
*/
function fbpost_plugin_admin_post ( & $a ){
check_form_security_token_redirectOnErr ( '/admin/plugins/fbpost' , 'fbsave' );
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if ( x ( $_REQUEST , 'fb_save_keys' )) {
set_config ( 'facebook' , 'appid' , $_REQUEST [ 'appid' ]);
set_config ( 'facebook' , 'appsecret' , $_REQUEST [ 'appsecret' ]);
info ( t ( 'The new values have been saved.' ));
}
}
/**
* @ param App $a
* @ param object $b
* @ return mixed
*/
function fbpost_jot_nets ( & $a , & $b ) {
if ( ! local_user ())
return ;
$fb_post = get_pconfig ( local_user (), 'facebook' , 'post' );
if ( intval ( $fb_post ) == 1 ) {
$fb_defpost = get_pconfig ( local_user (), 'facebook' , 'post_by_default' );
$selected = (( intval ( $fb_defpost ) == 1 ) ? ' checked="checked" ' : '' );
$b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
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. t ( 'Post to Facebook' ) . '</div>' ;
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}
}
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function fbpost_createmsg ( $b ) {
require_once ( " include/bbcode.php " );
require_once ( " include/html2plain.php " );
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$b [ 'body' ] = bb_CleanPictureLinks ( $b [ 'body' ]);
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// Looking for the first image
$image = '' ;
if ( preg_match ( " / \ [img \ =([0-9]*)x([0-9]*) \ ](.*?) \ [ \ /img \ ]/is " , $b [ 'body' ], $matches ))
$image = $matches [ 3 ];
if ( $image == '' )
if ( preg_match ( " / \ [img \ ](.*?) \ [ \ /img \ ]/is " , $b [ 'body' ], $matches ))
$image = $matches [ 1 ];
$multipleimages = ( strpos ( $b [ 'body' ], " [img " ) != strrpos ( $b [ 'body' ], " [img " ));
// When saved into the database the content is sent through htmlspecialchars
// That means that we have to decode all image-urls
$image = htmlspecialchars_decode ( $image );
$body = $b [ " body " ];
if ( $b [ " title " ] != " " )
$body = $b [ " title " ] . " \n \n " . $body ;
if ( strpos ( $body , " [bookmark " ) !== false ) {
// splitting the text in two parts:
// before and after the bookmark
$pos = strpos ( $body , " [bookmark " );
$body1 = substr ( $body , 0 , $pos );
$body2 = substr ( $body , $pos );
// Removing all quotes after the bookmark
// they are mostly only the content after the bookmark.
$body2 = preg_replace ( " / \ [quote \ =([^ \ ]]*) \ ](.*?) \ [ \ /quote \ ]/ism " , '' , $body2 );
$body2 = preg_replace ( " / \ [quote \ ](.*?) \ [ \ /quote \ ]/ism " , '' , $body2 );
$pos2 = strpos ( $body2 , " [/bookmark] " );
if ( $pos2 )
$body2 = substr ( $body2 , $pos2 + 11 );
$body = $body1 . $body2 ;
}
// Add some newlines so that the message could be cut better
$body = str_replace ( array ( " [quote " , " [bookmark " , " [/bookmark] " , " [/quote] " ),
array ( " \n [quote " , " \n [bookmark " , " [/bookmark] \n " , " [/quote] \n " ), $body );
// remove the recycle signs and the names since they aren't helpful on twitter
// $recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8');
// $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n", $body);
// At first convert the text to html
$html = bbcode ( $body , false , false , 2 );
// Then convert it to plain text
//$msg = trim($b['title']." \n\n".html2plain($html, 0, true));
$msg = trim ( html2plain ( $html , 0 , true ));
$msg = html_entity_decode ( $msg , ENT_QUOTES , 'UTF-8' );
// Removing multiple newlines
while ( strpos ( $msg , " \n \n \n " ) !== false )
$msg = str_replace ( " \n \n \n " , " \n \n " , $msg );
// Removing multiple spaces
while ( strpos ( $msg , " " ) !== false )
$msg = str_replace ( " " , " " , $msg );
// Removing URLs
$msg = preg_replace ( '/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/i' , " " , $msg );
$msg = trim ( $msg );
$link = '' ;
$linkname = '' ;
// look for bookmark-bbcode and handle it with priority
if ( preg_match ( " / \ [bookmark \ =([^ \ ]]*) \ ](.*?) \ [ \ /bookmark \ ]/is " , $b [ 'body' ], $matches )) {
$link = $matches [ 1 ];
$linkname = $matches [ 2 ];
}
$multiplelinks = ( strpos ( $b [ 'body' ], " [bookmark " ) != strrpos ( $b [ 'body' ], " [bookmark " ));
if ( $multiplelinks )
$linkname = '' ;
// If there is no bookmark element then take the first link
if ( $link == '' ) {
$links = collecturls ( $html );
if ( sizeof ( $links ) > 0 ) {
reset ( $links );
$link = current ( $links );
}
$multiplelinks = ( sizeof ( $links ) > 1 );
}
$msglink = " " ;
if ( $multiplelinks )
$msglink = $b [ " plink " ];
else if ( $link != " " )
$msglink = $link ;
else if ( $multipleimages )
$msglink = $b [ " plink " ];
else if ( $image != " " )
$msglink = $image ;
// Removing multiple spaces - again
while ( strpos ( $msg , " " ) !== false )
$msg = str_replace ( " " , " " , $msg );
if ( $msglink != " " ) {
// Looking if the link points to an image
$img_str = fetch_url ( $msglink );
$tempfile = tempnam ( get_config ( " system " , " temppath " ), " cache " );
file_put_contents ( $tempfile , $img_str );
$mime = image_type_to_mime_type ( exif_imagetype ( $tempfile ));
unlink ( $tempfile );
} else
$mime = " " ;
if (( $image == $msglink ) OR ( substr ( $mime , 0 , 6 ) == " image/ " ))
return ( array ( " msg " => trim ( $msg ), " link " => " " , " linkname " => $linkname , " image " => $msglink ));
else
return ( array ( " msg " => trim ( $msg ), " link " => $msglink , " linkname " => $linkname , " image " => $image ));
}
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/**
* @ param App $a
* @ param object $b
* @ return mixed
*/
function fbpost_post_hook ( & $a , & $b ) {
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logger ( 'fbpost_post_hook: Facebook post invoked' , LOGGER_DEBUG );
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if ( $b [ 'deleted' ] || ( $b [ 'created' ] !== $b [ 'edited' ]))
return ;
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logger ( 'fbpost_post_hook: Facebook post first check successful' , LOGGER_DEBUG );
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// if post comes from facebook don't send it back
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if (( $b [ 'app' ] == " Facebook " ) AND ( $b [ 'verb' ] != ACTIVITY_LIKE ))
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return ;
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logger ( 'fbpost_post_hook: Facebook post accepted' , LOGGER_DEBUG );
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/**
* Post to Facebook stream
*/
require_once ( 'include/group.php' );
require_once ( 'include/html2plain.php' );
$reply = false ;
$likes = false ;
$deny_arr = array ();
$allow_arr = array ();
$toplevel = (( $b [ 'id' ] == $b [ 'parent' ]) ? true : false );
$linking = (( get_pconfig ( $b [ 'uid' ], 'facebook' , 'no_linking' )) ? 0 : 1 );
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if (( ! $toplevel ) && ( $linking )) {
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$r = q ( " SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1 " ,
intval ( $b [ 'parent' ]),
intval ( $b [ 'uid' ])
);
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//$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
// dbesc($b['parent-uri']),
// intval($b['uid'])
//);
// is it a reply to a facebook post?
// A reply to a toplevel post is only allowed for "real" facebook posts
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if ( count ( $r ) && substr ( $r [ 0 ][ 'uri' ], 0 , 4 ) === 'fb::' )
$reply = substr ( $r [ 0 ][ 'uri' ], 4 );
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elseif ( count ( $r ) && ( substr ( $r [ 0 ][ 'extid' ], 0 , 4 ) === 'fb::' ) AND ( $r [ 0 ][ 'id' ] != $r [ 0 ][ 'parent' ]))
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$reply = substr ( $r [ 0 ][ 'extid' ], 4 );
else
return ;
$u = q ( " SELECT * FROM user where uid = %d limit 1 " ,
intval ( $b [ 'uid' ])
);
if ( ! count ( $u ))
return ;
// only accept comments from the item owner. Other contacts are unknown to FB.
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if ( ! link_compare ( $b [ 'author-link' ], $a -> get_baseurl () . '/profile/' . $u [ 0 ][ 'nickname' ]))
return ;
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logger ( 'fbpost_post_hook: facebook reply id=' . $reply );
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}
if ( strstr ( $b [ 'postopts' ], 'facebook' ) || ( $b [ 'private' ]) || ( $reply )) {
if ( $b [ 'private' ] && $reply === false ) {
$allow_people = expand_acl ( $b [ 'allow_cid' ]);
$allow_groups = expand_groups ( expand_acl ( $b [ 'allow_gid' ]));
$deny_people = expand_acl ( $b [ 'deny_cid' ]);
$deny_groups = expand_groups ( expand_acl ( $b [ 'deny_gid' ]));
$recipients = array_unique ( array_merge ( $allow_people , $allow_groups ));
$deny = array_unique ( array_merge ( $deny_people , $deny_groups ));
$allow_str = dbesc ( implode ( ', ' , $recipients ));
if ( $allow_str ) {
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logger ( " fbpost_post_hook: private post to: " . $allow_str , LOGGER_DEBUG );
$r = q ( " SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face' " );
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if ( count ( $r ))
foreach ( $r as $rr )
$allow_arr [] = $rr [ 'notify' ];
}
$deny_str = dbesc ( implode ( ', ' , $deny ));
if ( $deny_str ) {
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$r = q ( " SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face' " );
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if ( count ( $r ))
foreach ( $r as $rr )
$deny_arr [] = $rr [ 'notify' ];
}
if ( count ( $deny_arr ) && ( ! count ( $allow_arr ))) {
// One or more FB folks were denied access but nobody on FB was specifically allowed access.
// This might cause the post to be open to public on Facebook, but only to selected members
// on another network. Since this could potentially leak a post to somebody who was denied,
// we will skip posting it to Facebook with a slightly vague but relevant message that will
// hopefully lead somebody to this code comment for a better explanation of what went wrong.
notice ( t ( 'Post to Facebook cancelled because of multi-network access permission conflict.' ) . EOL );
return ;
}
// if it's a private message but no Facebook members are allowed or denied, skip Facebook post
if (( ! count ( $allow_arr )) && ( ! count ( $deny_arr )))
return ;
}
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if ( $b [ 'verb' ] == ACTIVITY_LIKE ) {
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$likes = true ;
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logger ( 'fbpost_post_hook: liking ' . print_r ( $b , true ), LOGGER_DEBUG );
}
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$appid = get_config ( 'facebook' , 'appid' );
$secret = get_config ( 'facebook' , 'appsecret' );
if ( $appid && $secret ) {
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logger ( 'fbpost_post_hook: have appid+secret' );
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$fb_token = get_pconfig ( $b [ 'uid' ], 'facebook' , 'access_token' );
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// post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
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// or it's a private message with facebook participants
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// or it's a reply or likes action to an existing facebook post
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if ( $fb_token && ( $toplevel || $b [ 'private' ] || $reply )) {
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logger ( 'fbpost_post_hook: able to post' );
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require_once ( 'library/facebook.php' );
require_once ( 'include/bbcode.php' );
$msg = $b [ 'body' ];
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logger ( 'fbpost_post_hook: original msg=' . $msg , LOGGER_DATA );
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// To-Do: if it is a reply, then only do a simple bbcode2plain conversion
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$msgarr = fbpost_createmsg ( $b );
$msg = $msgarr [ " msg " ];
$link = $msgarr [ " link " ];
$image = $msgarr [ " image " ];
$linkname = $msgarr [ " linkname " ];
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// Fallback - if message is empty
if ( ! strlen ( $msg ))
$msg = $linkname ;
if ( ! strlen ( $msg ))
$msg = $link ;
if ( ! strlen ( $msg ))
$msg = $image ;
// If there is nothing to post then exit
if ( ! strlen ( $msg ))
return ;
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logger ( 'fbpost_post_hook: msg=' . $msg , LOGGER_DATA );
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$video = " " ;
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if ( $likes ) {
$postvars = array ( 'access_token' => $fb_token );
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} else {
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// message, picture, link, name, caption, description, source, place, tags
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//if(trim($link) != "")
// if (@exif_imagetype($link) != 0) {
// $image = $link;
// $link = "";
// }
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$postvars = array (
'access_token' => $fb_token ,
'message' => $msg
);
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if ( trim ( $image ) != " " )
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$postvars [ 'picture' ] = $image ;
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if ( trim ( $link ) != " " ) {
$postvars [ 'link' ] = $link ;
if (( stristr ( $link , 'youtube' )) || ( stristr ( $link , 'youtu.be' )) || ( stristr ( $link , 'vimeo' ))) {
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$video = $link ;
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}
}
if ( trim ( $linkname ) != " " )
$postvars [ 'name' ] = $linkname ;
}
if (( $b [ 'private' ]) && ( $toplevel )) {
$postvars [ 'privacy' ] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"' ;
if ( count ( $allow_arr ))
$postvars [ 'privacy' ] .= ',"allow": "' . implode ( ',' , $allow_arr ) . '"' ;
if ( count ( $deny_arr ))
$postvars [ 'privacy' ] .= ',"deny": "' . implode ( ',' , $deny_arr ) . '"' ;
$postvars [ 'privacy' ] .= '}' ;
}
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$post_to_page = get_pconfig ( $b [ 'uid' ], 'facebook' , 'post_to_page' );
$page_access_token = get_pconfig ( $b [ 'uid' ], 'facebook' , 'page_access_token' );
if (( intval ( $post_to_page ) != 0 ) and ( $page_access_token != " " ))
$target = $post_to_page ;
else
$target = " me " ;
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if ( $reply ) {
$url = 'https://graph.facebook.com/' . $reply . '/' . (( $likes ) ? 'likes' : 'comments' );
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} else if (( $video != " " ) or (( $image == " " ) and ( $link != " " ))) {
// If it is a link to a video or a link without a preview picture then post it as a link
if ( $video != " " )
$link = $video ;
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$postvars = array (
'access_token' => $fb_token ,
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'link' => $link ,
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);
if ( $msg != $video )
$postvars [ 'message' ] = $msg ;
$url = 'https://graph.facebook.com/' . $target . '/links' ;
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} else if (( $link == " " ) and ( $image != " " )) {
// If it is only an image without a page link then post this image as a photo
$postvars = array (
'access_token' => $fb_token ,
'url' => $image ,
);
if ( $msg != $image )
$postvars [ 'message' ] = $msg ;
$url = 'https://graph.facebook.com/' . $target . '/photos' ;
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} else if (( $link != " " ) or ( $image != " " ) or ( $b [ 'title' ] == '' ) or ( strlen ( $msg ) < 500 )) {
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$url = 'https://graph.facebook.com/' . $target . '/feed' ;
if ( ! get_pconfig ( $b [ 'uid' ], 'facebook' , 'suppress_view_on_friendica' ) and $b [ 'plink' ])
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$postvars [ 'actions' ] = '{"name": "' . t ( 'View on Friendica' ) . '", "link": "' . $b [ 'plink' ] . '"}' ;
} else {
// if its only a message and a subject and the message is larger than 500 characters then post it as note
$postvars = array (
'access_token' => $fb_token ,
'message' => bbcode ( $b [ 'body' ], false , false ),
'subject' => $b [ 'title' ],
);
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$url = 'https://graph.facebook.com/' . $target . '/notes' ;
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}
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// Post to page?
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if ( ! $reply and ( $target != " me " ) and $page_access_token )
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$postvars [ 'access_token' ] = $page_access_token ;
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logger ( 'fbpost_post_hook: post to ' . $url );
logger ( 'fbpost_post_hook: postvars: ' . print_r ( $postvars , true ));
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// "test_mode" prevents anything from actually being posted.
// Otherwise, let's do it.
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if ( ! get_config ( 'facebook' , 'test_mode' )) {
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$x = post_url ( $url , $postvars );
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logger ( 'fbpost_post_hook: post returns: ' . $x , LOGGER_DEBUG );
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$retj = json_decode ( $x );
if ( $retj -> id ) {
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// Only set the extid when it isn't the toplevel post
q ( " UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d " ,
dbesc ( 'fb::' . $retj -> id ),
intval ( $b [ 'id' ]),
intval ( $b [ 'id' ])
);
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} else {
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// Sometimes posts are accepted from facebook although it telling an error
// This leads to endless comment flooding.
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// If it is a special kind of failure the post was receiced
// Although facebook said it wasn't received ...
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if ( ! $likes AND (( $retj -> error -> type != " OAuthException " ) OR ( $retj -> error -> code != 2 )) AND ( $x <> " " )) {
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$r = q ( " SELECT `id` FROM `contact` WHERE `uid` = %d AND `self` " , intval ( $b [ 'uid' ]));
if ( count ( $r ))
$a -> contact = $r [ 0 ][ " id " ];
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$s = serialize ( array ( 'url' => $url , 'item' => $b [ 'id' ], 'post' => $postvars ));
require_once ( 'include/queue_fn.php' );
add_to_queue ( $a -> contact , NETWORK_FACEBOOK , $s );
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logger ( 'fbpost_post_hook: Post failed, requeued.' , LOGGER_DEBUG );
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notice ( t ( 'Facebook post failed. Queued for retry.' ) . EOL );
}
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if ( isset ( $retj -> error ) && $retj -> error -> type == " OAuthException " && $retj -> error -> code == 190 ) {
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logger ( 'fbpost_post_hook: Facebook session has expired due to changed password.' , LOGGER_DEBUG );
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$last_notification = get_pconfig ( $b [ 'uid' ], 'facebook' , 'session_expired_mailsent' );
if ( ! $last_notification || $last_notification < ( time () - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL )) {
require_once ( 'include/enotify.php' );
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$r = q ( " SELECT * FROM `user` WHERE `uid` = %d LIMIT 1 " , intval ( $b [ 'uid' ]));
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notification ( array (
'uid' => $b [ 'uid' ],
'type' => NOTIFY_SYSTEM ,
'system_type' => 'facebook_connection_invalid' ,
'language' => $r [ 0 ][ 'language' ],
'to_name' => $r [ 0 ][ 'username' ],
'to_email' => $r [ 0 ][ 'email' ],
'source_name' => t ( 'Administrator' ),
'source_link' => $a -> config [ " system " ][ " url " ],
'source_photo' => $a -> config [ " system " ][ " url " ] . '/images/person-80.jpg' ,
));
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set_pconfig ( $b [ 'uid' ], 'facebook' , 'session_expired_mailsent' , time ());
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} else logger ( 'fbpost_post_hook: No notification, as the last one was sent on ' . $last_notification , LOGGER_DEBUG );
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}
}
}
}
}
}
}
/**
* @ param App $app
* @ param object $data
*/
function fbpost_enotify ( & $app , & $data ) {
if ( x ( $data , 'params' ) && $data [ 'params' ][ 'type' ] == NOTIFY_SYSTEM && x ( $data [ 'params' ], 'system_type' ) && $data [ 'params' ][ 'system_type' ] == 'facebook_connection_invalid' ) {
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$data [ 'itemlink' ] = '/fbpost' ;
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$data [ 'epreamble' ] = $data [ 'preamble' ] = t ( 'Your Facebook connection became invalid. Please Re-authenticate.' );
$data [ 'subject' ] = t ( 'Facebook connection became invalid' );
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$data [ 'body' ] = sprintf ( t ( " Hi %1 \$ s, \n \n The connection between your accounts on %2 \$ s and Facebook became invalid. This usually happens after you change your Facebook-password. To enable the connection again, you have to %3 \$ sre-authenticate the Facebook-connector%4 \$ s. " ), $data [ 'params' ][ 'to_name' ], " [url= " . $app -> config [ " system " ][ " url " ] . " ] " . $app -> config [ " sitename " ] . " [/url] " , " [url= " . $app -> config [ " system " ][ " url " ] . " /fbpost] " , " [/url] " );
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}
}
/**
* @ param App $a
* @ param object $b
*/
function fbpost_post_local ( & $a , & $b ) {
// Figure out if Facebook posting is enabled for this post and file it in 'postopts'
// where we will discover it during background delivery.
// This can only be triggered by a local user posting to their own wall.
if (( local_user ()) && ( local_user () == $b [ 'uid' ])) {
$fb_post = intval ( get_pconfig ( local_user (), 'facebook' , 'post' ));
$fb_enable = (( $fb_post && x ( $_REQUEST , 'facebook_enable' )) ? intval ( $_REQUEST [ 'facebook_enable' ]) : 0 );
// if API is used, default to the chosen settings
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// but allow a specific override
if ( $_REQUEST [ 'api_source' ] && intval ( get_pconfig ( local_user (), 'facebook' , 'post_by_default' ))) {
if ( ! x ( $_REQUEST , 'facebook_enable' ))
$fb_enable = 1 ;
}
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if ( ! $fb_enable )
return ;
if ( strlen ( $b [ 'postopts' ]))
$b [ 'postopts' ] .= ',' ;
$b [ 'postopts' ] .= 'facebook' ;
}
}
/**
* @ param App $a
* @ param object $b
*/
function fbpost_queue_hook ( & $a , & $b ) {
$qi = q ( " SELECT * FROM `queue` WHERE `network` = '%s' " ,
dbesc ( NETWORK_FACEBOOK )
);
if ( ! count ( $qi ))
return ;
require_once ( 'include/queue_fn.php' );
foreach ( $qi as $x ) {
if ( $x [ 'network' ] !== NETWORK_FACEBOOK )
continue ;
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logger ( 'fbpost_queue_hook: run' );
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$r = q ( " SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
WHERE `contact` . `self` = 1 AND `contact` . `id` = % d LIMIT 1 " ,
intval ( $x [ 'cid' ])
);
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if ( ! count ( $r )) {
logger ( 'fbpost_queue_hook: no user found for entry ' . print_r ( $x , true ));
update_queue_time ( $x [ 'id' ]);
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continue ;
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}
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$user = $r [ 0 ];
$appid = get_config ( 'facebook' , 'appid' );
$secret = get_config ( 'facebook' , 'appsecret' );
if ( $appid && $secret ) {
$fb_post = intval ( get_pconfig ( $user [ 'uid' ], 'facebook' , 'post' ));
$fb_token = get_pconfig ( $user [ 'uid' ], 'facebook' , 'access_token' );
if ( $fb_post && $fb_token ) {
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logger ( 'fbpost_queue_hook: able to post' );
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require_once ( 'library/facebook.php' );
$z = unserialize ( $x [ 'content' ]);
$item = $z [ 'item' ];
$j = post_url ( $z [ 'url' ], $z [ 'post' ]);
$retj = json_decode ( $j );
if ( $retj -> id ) {
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// Only set the extid when it isn't the toplevel post
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q ( " UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d " ,
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dbesc ( 'fb::' . $retj -> id ),
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intval ( $item ),
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intval ( $item )
);
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logger ( 'fbpost_queue_hook: success: ' . $j );
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remove_queue_item ( $x [ 'id' ]);
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} else {
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logger ( 'fbpost_queue_hook: failed: ' . $j );
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// If it is a special kind of failure the post was receiced
// Although facebook said it wasn't received ...
$ret = json_decode ( $j );
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if (( $ret -> error -> type != " OAuthException " ) OR ( $ret -> error -> code != 2 ) AND ( $j <> " " ))
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update_queue_time ( $x [ 'id' ]);
else
logger ( 'fbpost_queue_hook: Not requeued, since it seems to be received' );
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}
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} else {
logger ( 'fbpost_queue_hook: No fb_post or fb_token.' );
update_queue_time ( $x [ 'id' ]);
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}
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} else {
logger ( 'fbpost_queue_hook: No appid or secret.' );
update_queue_time ( $x [ 'id' ]);
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}
}
}
/**
* @ return bool | string
*/
function fbpost_get_app_access_token () {
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$acc_token = get_config ( 'facebook' , 'app_access_token' );
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if ( $acc_token !== false ) return $acc_token ;
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$appid = get_config ( 'facebook' , 'appid' );
$appsecret = get_config ( 'facebook' , 'appsecret' );
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if ( $appid === false || $appsecret === false ) {
logger ( 'fb_get_app_access_token: appid and/or appsecret not set' , LOGGER_DEBUG );
return false ;
}
logger ( 'https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials' , LOGGER_DATA );
$x = fetch_url ( 'https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials' );
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if ( strpos ( $x , 'access_token=' ) !== false ) {
logger ( 'fb_get_app_access_token: returned access token: ' . $x , LOGGER_DATA );
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$token = str_replace ( 'access_token=' , '' , $x );
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if ( strpos ( $token , '&' ) !== false )
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$token = substr ( $token , 0 , strpos ( $token , '&' ));
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if ( $token == " " ) {
logger ( 'fb_get_app_access_token: empty token: ' . $x , LOGGER_DEBUG );
return false ;
}
set_config ( 'facebook' , 'app_access_token' , $token );
return $token ;
} else {
logger ( 'fb_get_app_access_token: response did not contain an access_token: ' . $x , LOGGER_DATA );
return false ;
}
}
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function fbpost_cron ( $a , $b ) {
$last = get_config ( 'facebook' , 'last_poll' );
$poll_interval = intval ( get_config ( 'facebook' , 'poll_interval' ));
if ( ! $poll_interval )
$poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL ;
if ( $last ) {
$next = $last + ( $poll_interval * 60 );
if ( $next > time ()) {
logger ( 'facebook: poll intervall not reached' );
return ;
}
}
logger ( 'facebook: cron_start' );
$r = q ( " SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() " );
if ( count ( $r )) {
foreach ( $r as $rr ) {
logger ( 'facebook: fetching for user ' . $rr [ 'uid' ]);
fbpost_fetchwall ( $a , $rr [ 'uid' ]);
}
}
logger ( 'facebook: cron_end' );
set_config ( 'facebook' , 'last_poll' , time ());
}
function fbpost_fetchwall ( $a , $uid ) {
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require_once ( " include/oembed.php " );
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$access_token = get_pconfig ( $uid , 'facebook' , 'access_token' );
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$post_to_page = get_pconfig ( $uid , 'facebook' , 'post_to_page' );
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$lastcreated = get_pconfig ( $uid , 'facebook' , 'last_created' );
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if (( int ) $post_to_page == 0 )
$post_to_page = " me " ;
$url = " https://graph.facebook.com/ " . $post_to_page . " /feed?access_token= " . $access_token ;
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$first_time = ( $lastcreated == " " );
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if ( $lastcreated != " " )
$url .= " &since= " . urlencode ( $lastcreated );
$feed = fetch_url ( $url );
$data = json_decode ( $feed );
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if ( ! is_array ( $data -> data ))
return ;
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$items = array_reverse ( $data -> data );
foreach ( $items as $item ) {
if ( $item -> created_time > $lastcreated )
$lastcreated = $item -> created_time ;
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if ( $first_time )
continue ;
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if ( $item -> application -> id == get_config ( 'facebook' , 'appid' ))
continue ;
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if ( isset ( $item -> privacy ) && ( $item -> privacy -> value !== 'EVERYONE' ) && ( $item -> privacy -> value !== '' ))
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continue ;
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if (( $post_to_page != $item -> from -> id ) AND (( int ) $post_to_page != 0 ))
continue ;
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if ( ! strstr ( $item -> id , $item -> from -> id . " _ " ) AND isset ( $item -> to ) AND (( int ) $post_to_page == 0 ))
continue ;
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$_SESSION [ " authenticated " ] = true ;
$_SESSION [ " uid " ] = $uid ;
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unset ( $_REQUEST );
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$_REQUEST [ " type " ] = " wall " ;
$_REQUEST [ " api_source " ] = true ;
$_REQUEST [ " profile_uid " ] = $uid ;
$_REQUEST [ " source " ] = " Facebook " ;
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$_REQUEST [ " title " ] = " " ;
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$_REQUEST [ " body " ] = ( isset ( $item -> message ) ? escape_tags ( $item -> message ) : '' );
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$content = " " ;
$type = " " ;
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if ( isset ( $item -> name ) and isset ( $item -> link )) {
$oembed_data = oembed_fetch_url ( $item -> link );
$type = $oembed_data -> type ;
$content = " [bookmark= " . $item -> link . " ] " . $item -> name . " [/bookmark] " ;
} elseif ( isset ( $item -> name ))
$content .= " [b] " . $item -> name . " [/b] " ;
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$quote = " " ;
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if ( isset ( $item -> description ) and ( $item -> type != " photo " ))
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$quote = $item -> description ;
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if ( isset ( $item -> caption ) and ( $item -> type == " photo " ))
$quote = $item -> caption ;
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// Only import the picture when the message is no video
// oembed display a picture of the video as well
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//if ($item->type != "video") {
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//if (($item->type != "video") and ($item->type != "photo")) {
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if (( $type == " " ) OR ( $type == " link " )) {
$type = $item -> type ;
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if ( isset ( $item -> picture ) && isset ( $item -> link ))
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$content .= " \n " . '[url=' . $item -> link . '][img]' . fpost_cleanpicture ( $item -> picture ) . '[/img][/url]' ;
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else {
if ( isset ( $item -> picture ))
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$content .= " \n " . '[img]' . fpost_cleanpicture ( $item -> picture ) . '[/img]' ;
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// if just a link, it may be a wall photo - check
if ( isset ( $item -> link ))
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$content .= fbpost_get_photo ( $uid , $item -> link );
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}
}
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if ( trim ( $_REQUEST [ " body " ] . $content . $quote ) == '' ) {
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logger ( 'facebook: empty body ' . $item -> id . ' ' . print_r ( $item , true ));
continue ;
}
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if ( $content )
$_REQUEST [ " body " ] .= " \n \n " ;
if ( $type )
$_REQUEST [ " body " ] .= " [class=type- " . $type . " ] " ;
if ( $content )
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$_REQUEST [ " body " ] .= trim ( $content );
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if ( $quote )
$_REQUEST [ " body " ] .= " \n [quote] " . $quote . " [/quote] " ;
if ( $type )
$_REQUEST [ " body " ] .= " [/class] " ;
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$_REQUEST [ " body " ] = trim ( $_REQUEST [ " body " ]);
if ( isset ( $item -> place )) {
if ( $item -> place -> name or $item -> place -> location -> street or
$item -> place -> location -> city or $item -> place -> location -> country ) {
$_REQUEST [ " location " ] = '' ;
if ( $item -> place -> name )
$_REQUEST [ " location " ] .= $item -> place -> name ;
if ( $item -> place -> location -> street )
$_REQUEST [ " location " ] .= " " . $item -> place -> location -> street ;
if ( $item -> place -> location -> city )
$_REQUEST [ " location " ] .= " " . $item -> place -> location -> city ;
if ( $item -> place -> location -> country )
$_REQUEST [ " location " ] .= " " . $item -> place -> location -> country ;
$_REQUEST [ " location " ] = trim ( $_REQUEST [ " location " ]);
}
if ( $item -> place -> location -> latitude and $item -> place -> location -> longitude )
$_REQUEST [ " coord " ] = substr ( $item -> place -> location -> latitude , 0 , 8 )
. ' ' . substr ( $item -> place -> location -> longitude , 0 , 8 );
}
//print_r($_REQUEST);
logger ( 'facebook: posting for user ' . $uid );
require_once ( 'mod/item.php' );
item_post ( $a );
}
set_pconfig ( $uid , 'facebook' , 'last_created' , $lastcreated );
}
function fbpost_get_photo ( $uid , $link ) {
$access_token = get_pconfig ( $uid , 'facebook' , 'access_token' );
if ( ! $access_token || ( ! stristr ( $link , 'facebook.com/photo.php' )))
return " " ;
$ret = preg_match ( '/fbid=([0-9]*)/' , $link , $match );
if ( $ret )
$photo_id = $match [ 1 ];
else
return " " ;
$x = fetch_url ( 'https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token );
$j = json_decode ( $x );
if ( $j -> picture )
return " \n \n " . '[url=' . $link . '][img]' . fpost_cleanpicture ( $j -> picture ) . '[/img][/url]' ;
return " " ;
}
function fpost_cleanpicture ( $image ) {
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if (( strpos ( $image , " .fbcdn.net/ " ) OR strpos ( $image , " /fbcdn-photos- " )) and ( substr ( $image , - 6 ) == " _s.jpg " ))
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$image = substr ( $image , 0 , - 6 ) . " _n.jpg " ;
$queryvar = fbpost_parse_query ( $image );
if ( $queryvar [ 'url' ] != " " )
$image = urldecode ( $queryvar [ 'url' ]);
return $image ;
}
function fbpost_parse_query ( $var ) {
/**
* Use this function to parse out the query array element from
* the output of parse_url () .
*/
$var = parse_url ( $var , PHP_URL_QUERY );
$var = html_entity_decode ( $var );
$var = explode ( '&' , $var );
$arr = array ();
foreach ( $var as $val ) {
$x = explode ( '=' , $val );
$arr [ $x [ 0 ]] = $x [ 1 ];
}
unset ( $val , $x , $var );
return $arr ;
}