/**
* Calls the Google API to get information about the user associated with this
* email address. For more details on the call, see
* http://code.google.com/apis/socialgraph/docs/
*
* @since Unknown
*
* @param string $email The email address of the user
*/
function google_find_by_email($email)
{
$user_info_url = 'http://socialgraph.apis.google.com/lookup';
$user_info_url .= '?q=' . urlencode('mailto:' . $email);
$user_info_url .= '&fme=1&edi=1&edo=1&pretty=1&sgn=1&callback=';
$user_info_result = http_request($user_info_url);
if (!did_http_succeed($user_info_result)) {
return null;
}
// Take the JSON string containing all the user's information and pull it into a PHP array as the final result
$user_info_json_string = $user_info_result['body'];
$user_info_object = json_decode($user_info_json_string, true);
if (!isset($user_info_object['nodes'])) {
return null;
}
$all_nodes = $user_info_object['nodes'];
$result = null;
foreach ($all_nodes as $current_id => $node) {
if (!isset($node['attributes'])) {
continue;
}
$attributes = $node['attributes'];
if (!isset($attributes['photo'])) {
continue;
}
$portrait_url = $attributes['photo'];
if (isset($attributes['fn'])) {
$display_name = $attributes['fn'];
} else {
$display_name = '';
}
$user_name = '';
$user_id = '';
$location = '';
$result = array('google' => array('user_id' => $user_id, 'user_name' => $user_name, 'display_name' => $display_name, 'portrait_url' => $portrait_url, 'location' => $location));
break;
}
return $result;
}
/**
* Queries the domain for this email address to see if it supports WebFinger, and
* if it does returns the right URL to call to get information on the address
*
* @param string $email The email address of the user
* @return string The URL to call to get information, or null if none found
*/
function webfinger_query_url_for_email($email)
{
$domain = get_domain_from_email($email);
if (empty($domain)) {
return null;
}
// First, ask the server for a list of the services it supports, so we can
// look through that list for WebFinger
$endpoint_url = WEBFINGER_ENDPOINT_PREFIX;
$endpoint_url .= $domain;
$endpoint_url .= WEBFINGER_ENDPOINT_SUFFIX;
$endpoint_result = http_request($endpoint_url);
if (!did_http_succeed($endpoint_result)) {
return null;
}
$endpoint_xml = $endpoint_result['body'];
$endpoint_data = convert_xml_string_to_array($endpoint_xml);
if (!isset($endpoint_data['xrd']['link'])) {
return null;
}
$endpoint_links = $endpoint_data['xrd']['link'];
// If there was a single link tag, we'll get its contents in $endpoint_links, but
// if multiple links were present, the contents will be an numeric array of them all.
// To normalize this, put lone tags into their own array.
if (!isset($endpoint_links[0])) {
$endpoint_links_list = array($endpoint_links);
} else {
$endpoint_links_list = $endpoint_links;
}
// Now search for a link with the right service rel tag, and get the URL template
$template = null;
foreach ($endpoint_links_list as $link) {
if (!isset($link['@attributes']['rel'])) {
continue;
}
$rel = $link['@attributes']['rel'];
if ($rel !== WEBFINGER_SERVICE_REL_TYPE) {
continue;
}
if (!isset($link['@attributes']['template'])) {
continue;
}
$template = $link['@attributes']['template'];
}
if (empty($template)) {
return null;
}
if (!strpos($template, '{uri}')) {
return null;
}
// Finally substitute the actual email address into the generic template
$result = str_replace('{uri}', urlencode('acct://' . $email), $template);
return $result;
}
function webfinger_find_by_email($email)
{
// Obtain the URL to gather user information from
$query_url = webfinger_query_url_for_email($email);
if (empty($query_url)) {
return null;
}
// Try to grab the information help on this email address
$query_result = http_request($query_url);
if (!did_http_succeed($query_result)) {
return null;
}
$query_xml = $query_result['body'];
$query_data = convert_xml_string_to_array($query_xml);
if (!isset($query_data['xrd']['link'])) {
return null;
}
$query_links = $query_data['xrd']['link'];
// If there was a single link tag, we'll get its contents in $query_links, but
// if multiple links were present, the contents will be an numeric array of them all.
// To normalize this, put lone tags into their own array.
if (!isset($query_links[0])) {
$query_links_list = array($query_links);
} else {
$query_links_list = $query_links;
}
// Go through all the links and extract the information from any we recognize
$result = array();
foreach ($query_links_list as $link) {
if (!isset($link['@attributes']['rel']) || !isset($link['@attributes']['href'])) {
continue;
}
$rel = $link['@attributes']['rel'];
$href = $link['@attributes']['href'];
// At the moment this only understands hCard formatted pages
if ($rel === HCARD_REL_URL) {
$hkit = new hKit();
$hcard_result = $hkit->getByURL('hcard', $href);
if (empty($hcard_result) || !isset($hcard_result[0])) {
continue;
}
$hcard_info = $hcard_result[0];
$user_id = $href;
$user_name = '';
if (isset($hcard_info['fn'])) {
$display_name = $hcard_info['fn'];
} else {
$display_name = '';
}
if (isset($hcard_info['photo'])) {
$portrait_url = $hcard_info['photo'];
} else {
$portrait_url = '';
}
if (isset($hcard_info['adr'])) {
$location = $hcard_info['adr'];
} else {
$location = '';
}
$result = array('webfinger' => array('user_id' => $user_id, 'user_name' => $user_name, 'display_name' => $display_name, 'portrait_url' => $portrait_url, 'location' => $location));
}
}
if (empty($result)) {
return null;
}
return $result;
}
/**
* Calls the MySpace API to get information about the user associated with this
* email address. For more details on the call, see
* http://wiki.developer.myspace.com/index.php?title=Open_Search
*
* @since Unknown
*
* @param string $email The email address of the user
*/
function myspace_find_by_email($email)
{
$user_info_url = 'http://api.myspace.com/opensearch/people';
$user_info_url .= '?searchBy=email';
$user_info_url .= '&searchTerms=' . urlencode($email);
$user_info_result = http_request($user_info_url);
if (!did_http_succeed($user_info_result)) {
return null;
}
// Take the JSON string containing all the user's information and pull it into a PHP array as the final result
$user_info_json_string = $user_info_result['body'];
$user_info_object = json_decode($user_info_json_string, true);
if (!isset($user_info_object['entry'][0])) {
return null;
}
$user_data = $user_info_object['entry'][0];
$user_id = str_replace('myspace.com.person.', '', $user_data['id']);
$user_name = '';
$display_name = $user_data['displayName'];
if (strrpos($user_data['thumbnailUrl'], 'no_pic.gif')) {
$portrait_url = '';
} else {
$portrait_url = $user_data['thumbnailUrl'];
}
$location = $user_data['location'];
$result = array('myspace' => array('user_id' => $user_id, 'user_name' => $user_name, 'display_name' => $display_name, 'portrait_url' => $portrait_url, 'location' => $location));
return $result;
}