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-rw-r--r--mod/dfrn_request.php290
1 files changed, 290 insertions, 0 deletions
diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
new file mode 100644
index 000000000..ef3c7274b
--- /dev/null
+++ b/mod/dfrn_request.php
@@ -0,0 +1,290 @@
+<?php
+
+if(! function_exists('dfrn_request_init')) {
+function dfrn_request_init(&$a) {
+
+ if($_SESSION['authenticated']) {
+ // choose which page to show (could be remote auth)
+
+ }
+
+ if($a->argc > 1)
+ $which = $a->argv[1];
+
+ require_once('mod/profile.php');
+ profile_init($a,$which);
+
+ return;
+}}
+
+
+if(! function_exists('dfrn_request_post')) {
+function dfrn_request_post(&$a) {
+
+ if(($a->argc != 2) || (! count($a->profile)))
+ return;
+
+
+ if($_POST['cancel']) {
+ goaway($a->get_baseurl());
+ }
+
+ // callback to local site after remote request and local confirm
+
+ if((x($_POST,'localconfirm')) && ($_POST['localconfirm'] == 1)
+ && (x($_SESSION,'authenticated')) && (x($_SESSION,'uid'))
+ && ($_SESSION['uid'] == $a->argv[1]) && (x($_POST,'dfrn_url'))) {
+
+ $dfrn_url = notags(trim($_POST['dfrn_url']));
+ $aes_allow = (((x($_POST,'aes_allow')) && ($_POST['aes_allow'] == 1)) ? 1 : 0);
+ $confirm_key = ((x($_POST,'confirm_key')) ? $_POST['confirm_key'] : "");
+ $failed = false;
+
+ require_once('Scrape.php');
+
+ if(x($dfrn_url)) {
+
+ $parms = scrape_dfrn($dfrn_url);
+
+ if(! count($parms)) {
+ $_SESSION['sysmsg'] .= 'URL is not valid or does not contain profile information.' . EOL ;
+ $failed = true;
+ }
+ else {
+ if(! x($parms,'fn'))
+ $_SESSION['sysmsg'] .= 'Warning: DFRN profile has no identifiable owner name.' . EOL ;
+ if(! x($parms,'photo'))
+ $_SESSION['sysmsg'] .= 'Warning: DFRN profile has no profile photo.' . EOL ;
+ $invalid = validate_dfrn($parms);
+ if($invalid) {
+ echo $invalid . ' required DFRN parameter'
+ . (($invalid == 1) ? " was " : "s were " )
+ . "not found at the given URL" . '<br />';
+
+ $failed = true;
+ }
+ }
+ }
+ if(! $failed) {
+
+ $dfrn_request = $parms['dfrn-request'];
+ /////////////////////////
+ dbesc_array($parms);
+ ////////////////////////
+
+ $r = q("INSERT INTO `contact` ( `uid`, `created`,`url`, `name`, `photo`, `site-pubkey`,
+ `request`, `confirm`, `notify`, `poll`, `aes_allow`)
+ VALUES ( %d, '%s', '%s', '%s' , '%s', '%s', '%s', '%s', '%s', '%s', %d)",
+ intval($_SESSION['uid']),
+ datetime_convert(),
+ dbesc($dfrn_url),
+ $parms['fn'],
+ $parms['photo'],
+ $parms['key'],
+ $parms['dfrn-request'],
+ $parms['dfrn-confirm'],
+ $parms['dfrn-notify'],
+ $parms['dfrn-poll'],
+ intval($aes_allow)
+ );
+ if($r === false)
+ $_SESSION['sysmsg'] .= "Failed to create contact." . EOL;
+ else
+ $_SESSION['sysmsg'] .= "Introduction complete.";
+
+ // Allow the blocked remote notification to complete
+
+ if(strlen($dfrn_request) && strlen($confirm_key))
+ $s = fetch_url($dfrn_request . '?confirm_key=' . $confirm_key);
+
+ goaway($dfrn_url);
+ }
+ }
+
+
+ // we are operating as a remote site and an introduction was requested of us.
+ // Scrape the originating DFRN-URL for everything we need. Create a contact record
+ // and an introduction to show our user next time he/she logs in.
+ // Finally redirect back to the originator so that their site can record the request.
+ // If our user confirms the request, a record of it will need to exist on the
+ // originator's site in order for the confirmation process to complete..
+
+ if($a->profile['nickname'])
+ $tailname = $a->profile['nickname'];
+ else
+ $tailname = $a->profile['uid'];
+
+ $uid = $a->profile['uid'];
+
+ $failed = false;
+
+ require_once('Scrape.php');
+
+ if( x($_POST,'dfrn_url')) {
+
+ $url = trim($_POST['dfrn_url']);
+ if(x($url)) {
+ $parms = scrape_dfrn($url);
+
+ if(! count($parms)) {
+ $_SESSION['sysmsg'] .= 'URL is not valid or does not contain profile information.' . EOL ;
+ $failed = true;
+ }
+ else {
+ if(! x($parms,'fn'))
+ $_SESSION['sysmsg'] .= 'Warning: DFRN profile has no identifiable owner name.' . EOL ;
+ if(! x($parms,'photo'))
+ $_SESSION['sysmsg'] .= 'Warning: DFRN profile has no profile photo.' . EOL ;
+ $invalid = validate_dfrn($parms);
+ if($invalid) {
+ echo $invalid . ' required DFRN parameter'
+ . (($invalid == 1) ? " was " : "s were " )
+ . "not found at the given URL" . '<br />';
+
+ $failed = true;
+ }
+ }
+ }
+
+ $ret = q("SELECT `url` FROM `contact` WHERE `url` = '%s'", dbesc($url));
+ if($ret !== false && count($ret)) {
+ $_SESSION['sysmsg'] .= 'You have already introduced yourself here.' . EOL;
+ $failed = true;
+ }
+
+
+ if(! $failed) {
+
+ $parms['url'] = $url;
+ $parms['issued-id'] = random_string();
+
+ /////////////////////////
+ dbesc_array($parms);
+ ////////////////////////
+
+ $ret = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `name`, `issued-id`, `photo`, `site-pubkey`,
+ `request`, `confirm`, `notify`, `poll`, `visible` )
+ VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d )",
+ intval($uid),
+ datetime_convert(),
+ $parms['url'],
+ $parms['fn'],
+ $parms['issued-id'],
+ $parms['photo'],
+ $parms['key'],
+ $parms['dfrn-request'],
+ $parms['dfrn-confirm'],
+ $parms['dfrn-notify'],
+ $parms['dfrn-poll'],
+ ((x($_POST,'visible')) ? 1 : 0 )
+ );
+
+ }
+ if($ret === false) {
+ $_SESSION['sysmsg'] .= 'Failed to create contact record.' . EOL;
+ return;
+ }
+
+ $ret = q("SELECT `id` FROM `contact`
+ WHERE `uid` = '%s' AND `url` = '%s' AND `issued-id` = '%s'
+ LIMIT 1",
+ intval($uid),
+ $parms['url'],
+ $parms['issued-id']
+ );
+
+ if(($ret !== NULL) && (count($ret)))
+ $contact_id = $ret[0]['id'];
+
+ $hash = random_string() . (string) time(); // Generate a confirm_key
+
+ if($contact_id) {
+ $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
+ VALUES ( %d, %d, 1, %d, '%s', '%s', '%s' )",
+ intval($uid),
+ intval($contact_id),
+ ((x($_POST,'knowyou') && ($_POST['knowyou'] == 1)) ? 1 : 0),
+ dbesc(trim($_POST['dfrn-request-message'])),
+ dbesc($hash),
+ dbesc(datetime_convert())
+ );
+ }
+
+
+ // TODO: send an email notification if our user wants one
+
+ if(! $failed)
+ $_SESSION['sysmsg'] .= "Your introduction has been sent." . EOL;
+
+ // "Homecoming" - send the requestor back to their site to record the introduction.
+
+ $dfrn_url = bin2hex($a->get_baseurl() . "/profile/$tailname");
+ $aes_allow = ((function_exists('openssl_encrypt')) ? 1 : 0);
+
+ goaway($parms['dfrn-request'] . "?dfrn_url=$dfrn_url" . '&confirm_key=' . $hash . (($aes_allow) ? "&aes_allow=1" : ""));
+
+ }
+
+}}
+
+if(! function_exists('dfrn_request_content')) {
+function dfrn_request_content(&$a) {
+
+
+
+ if(($a->argc != 2) || (! count($a->profile)))
+ return "";
+
+ $a->page['template'] = 'profile';
+
+ // "Homecoming". Make sure we're logged in to this site as the correct user. Then offer a confirm button
+ // to send us to the post section to record the introduction.
+
+ if(x($_GET,'dfrn_url')) {
+
+ if(! x($_SESSION,'authenticated')) {
+ $_SESSION['sysmsg'] .= "Please login to confirm introduction." . EOL;
+ return login();
+ }
+
+ // Edge case, but can easily happen in the wild. This person is authenticated,
+ // but not as the person who needs to deal with this request.
+
+ if (($_SESSION['uid'] != $a->argv[1]) && ($a->user['nickname'] != $a->argv[1])) {
+ $_SESSION['sysmsg'] .= "Incorrect identity currently logged in. Please login to <strong>this</strong> profile." . EOL;
+ return login();
+ }
+
+ $dfrn_url = notags(trim(pack("H*" , $_GET['dfrn_url'])));
+ $aes_allow = (((x($_GET,'aes_allow')) && ($_GET['aes_allow'] == 1)) ? 1 : 0);
+ $confirm_key = (x($_GET,'confirm_key') ? $_GET['confirm_key'] : "");
+ $o .= file_get_contents("view/dfrn_req_confirm.tpl");
+ $o = replace_macros($o,array(
+ '$dfrn_url' => $dfrn_url,
+ '$aes_allow' => (($aes_allow) ? '<input type="hidden" name="aes_allow" value="1" />' : "" ),
+ '$confirm_key' => $confirm_key,
+ '$username' => $a->user['username'],
+ '$uid' => $_SESSION['uid'],
+ 'dfrn_rawurl' => $_GET['dfrn_url']
+ ));
+ return $o;
+
+ }
+ else {
+ // safe to send our user their introduction
+ if((x($_GET,'confirm_key')) && strlen($_GET['confirm_key'])) {
+ $r = q("UPDATE `intro` SET `blocked` = 0 WHERE `hash` = '%s' LIMIT 1",
+ dbesc($_GET['confirm_key'])
+ );
+ return;
+ }
+
+
+ // Outside request. Display our user's introduction form.
+
+
+ $o = file_get_contents("view/dfrn_request.tpl");
+ $o = replace_macros($o,array('$uid' => $a->profile['uid']));
+ return $o;
+ }
+}} \ No newline at end of file