mirror of https://github.com/friendica/friendica
more instrumentation on dfrn_confirm to help track down why it quietly gives up on occasion with no helpful log messages.
This commit is contained in:
Friendika
parent
a42b9ea3de
commit
4d0f0f9a94
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@ -1,14 +1,28 @@
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<?php
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// There are two possible entry points.
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/*
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* Module: dfrn_confirm
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* Purpose: Friendship acceptance for DFRN contacts
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*
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* There are two possible entry points and three scenarios.
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*
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* 1. A form was submitted by our user approving a friendship that originated elsewhere.
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* This may also be called from dfrn_request to automatically approve a friendship.
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*
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* 2. We may be the target or other side of the conversation to scenario 1, and will
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* interact with that process on our own user's behalf.
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*
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*/
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function dfrn_confirm_post(&$a,$handsfree = null) {
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if(is_array($handsfree)) {
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// called directly from dfrn_request due to automatic friend acceptance
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// any $_POST parameters we may require are supplied in the $handsfree array
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/**
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* We were called directly from dfrn_request due to automatic friend acceptance.
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* Any $_POST parameters we may require are supplied in the $handsfree array.
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*
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*/
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$node = $handsfree['node'];
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$a->interactive = false; // notice() becomes a no-op since nobody is there to see it
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@ -19,10 +33,17 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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$node = $a->argv[1];
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}
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// Main entry point. Our user received a friend request notification (perhaps
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// from another site) and clicked 'Approve'. $POST['source_url'] is not set.
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// OR we have been called directly from dfrn_request ($handsfree != null) due to
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// this being a page type which supports automatic friend acceptance.
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/**
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*
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* Main entry point. Scenario 1. Our user received a friend request notification (perhaps
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* from another site) and clicked 'Approve'.
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* $POST['source_url'] is not set. If it is, it indicates Scenario 2.
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*
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* We may also have been called directly from dfrn_request ($handsfree != null) due to
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* this being a page type which supports automatic friend acceptance. That is also Scenario 1
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* since we are operating on behalf of our registered user to approve a friendship.
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*
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*/
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if(! x($_POST,'source_url')) {
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@ -43,35 +64,53 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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}
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// These come from either the friend request notification form or $handsfree array.
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// These data elements may come from either the friend request notification form or $handsfree array.
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if(is_array($handsfree)) {
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$dfrn_id = $handsfree['dfrn_id'];
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$intro_id = $handsfree['intro_id'];
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$duplex = $handsfree['duplex'];
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logger('dfrn_confirm: Confirm in handsfree mode');
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$dfrn_id = $handsfree['dfrn_id'];
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$intro_id = $handsfree['intro_id'];
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$duplex = $handsfree['duplex'];
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}
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else {
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$dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : "");
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$intro_id = intval($_POST['intro_id']);
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$duplex = intval($_POST['duplex']);
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$cid = intval($_POST['contact_id']);
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$dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : "");
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$intro_id = ((x($_POST,'intro_id')) ? intval($_POST['intro_id']) : 0 );
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$duplex = ((x($_POST,'duplex')) ? intval($_POST['duplex']) : 0 );
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$cid = ((x($_POST,'contact_id')) ? intval($_POST['contact_id']) : 0 );
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}
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/**
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*
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* Ensure that dfrn_id has precedence when we go to find the contact record.
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* We only want to search based on contact id if there is no dfrn_id,
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* e.g. for OStatus network followers.
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*
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*/
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if(strlen($dfrn_id))
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$cid = 0;
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logger('dfrn_confirm: Confirming request for dfrn_id (issued) ' . $dfrn_id);
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if($cid)
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logger('dfrn_confirm: Confirming follower with contact_id: ' . $cid);
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// The other person will have been issued an ID when they first requested friendship.
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// Locate their record. At this time, their record will have both pending and blocked set to 1.
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// There won't be any dfrn_id if this is a network follower, so use the contact_id instead.
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/**
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*
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* The other person will have been issued an ID when they first requested friendship.
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* Locate their record. At this time, their record will have both pending and blocked set to 1.
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* There won't be any dfrn_id if this is a network follower, so use the contact_id instead.
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*
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*/
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$r = q("SELECT * FROM `contact` WHERE ( ( `issued-id` != '' AND `issued-id` = '%s' ) OR ( `id` = %d AND `id` != 0 ) ) AND `uid` = %d LIMIT 1",
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dbesc($dfrn_id),
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intval($cid),
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intval($uid)
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dbesc($dfrn_id),
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intval($cid),
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intval($uid)
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);
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if(! count($r)) {
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logger('dfrn_confirm: Contact not found in DB.');
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notice( t('Contact not found.') . EOL );
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return;
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}
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@ -88,11 +127,15 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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if($network === 'dfrn') {
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// Generate a key pair for all further communications with this person.
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// We have a keypair for every contact, and a site key for unknown people.
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// This provides a means to carry on relationships with other people if
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// any single key is compromised. It is a robust key. We're much more
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// worried about key leakage than anybody cracking it.
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/**
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*
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* Generate a key pair for all further communications with this person.
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* We have a keypair for every contact, and a site key for unknown people.
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* This provides a means to carry on relationships with other people if
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* any single key is compromised. It is a robust key. We're much more
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* worried about key leakage than anybody cracking it.
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*
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*/
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$res = openssl_pkey_new(array(
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'digest_alg' => 'sha1',
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@ -100,7 +143,6 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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'encrypt_key' => false )
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);
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$private_key = '';
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openssl_pkey_export($res, $private_key);
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@ -118,16 +160,20 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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$params = array();
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// Per the protocol document, we will verify both ends by encrypting the dfrn_id with our
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// site private key (person on the other end can decrypt it with our site public key).
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// Then encrypt our profile URL with the other person's site public key. They can decrypt
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// it with their site private key. If the decryption on the other end fails for either
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// item, it indicates tampering or key failure on at least one site and we will not be
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// able to provide a secure communication pathway.
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// If other site is willing to accept full encryption, (aes_allow is 1 AND we have php5.3
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// or later) then we encrypt the personal public key we send them using AES-256-CBC and a
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// random key which is encrypted with their site public key.
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/**
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*
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* Per the DFRN protocol, we will verify both ends by encrypting the dfrn_id with our
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* site private key (person on the other end can decrypt it with our site public key).
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* Then encrypt our profile URL with the other person's site public key. They can decrypt
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* it with their site private key. If the decryption on the other end fails for either
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* item, it indicates tampering or key failure on at least one site and we will not be
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* able to provide a secure communication pathway.
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*
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* If other site is willing to accept full encryption, (aes_allow is 1 AND we have php5.3
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* or later) then we encrypt the personal public key we send them using AES-256-CBC and a
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* random key which is encrypted with their site public key.
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*
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*/
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$src_aes_key = random_string();
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@ -153,7 +199,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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if($duplex == 1)
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$params['duplex'] = 1;
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logger('dfrn_confirm: Confirm: posted data: ' . print_r($params,true), LOGGER_DATA);
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logger('dfrn_confirm: Confirm: posting data to ' . $dfrn_confirm . ': ' . print_r($params,true), LOGGER_DATA);
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// POST all this stuff to the other site.
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@ -233,9 +279,16 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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return;
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}
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// We have now established a relationship with the other site.
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// Let's make our own personal copy of their profile photo so we don't have
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// to always load it from their site.
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/*
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*
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* We have now established a relationship with the other site.
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* Let's make our own personal copy of their profile photo so we don't have
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* to always load it from their site.
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*
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* We will also update the contact record with the nature and scope of the relationship.
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*
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*/
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require_once("Photo.php");
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@ -276,12 +329,11 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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);
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}
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else {
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// $network !== 'dfrn'
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$notify = '';
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$poll = '';
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// $network !== 'dfrn'
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$arr = lrdd($contact['url']);
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if(count($arr)) {
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foreach($arr as $link) {
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@ -332,31 +384,33 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
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if($handsfree === null)
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goaway($a->get_baseurl() . '/contacts/' . intval($contact_id));
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return; //NOTREACHED
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else
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return;
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//NOTREACHED
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}
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// End of first scenario. [Local confirmation of remote friend request].
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// Begin scenario two. This is the remote response to the above scenario.
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// This will take place on the site that originally initiated the friend request.
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// In the section above where the confirming party makes a POST and
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// retrieves xml status information, they are communicating with the following code.
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/**
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*
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*
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* End of Scenario 1. [Local confirmation of remote friend request].
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*
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* Begin Scenario 2. This is the remote response to the above scenario.
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* This will take place on the site that originally initiated the friend request.
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* In the section above where the confirming party makes a POST and
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* retrieves xml status information, they are communicating with the following code.
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*
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*/
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if(x($_POST,'source_url')) {
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// We are processing an external confirmation to an introduction created by our user.
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$public_key = $_POST['public_key'];
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$dfrn_id = hex2bin($_POST['dfrn_id']);
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$source_url = hex2bin($_POST['source_url']);
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$aes_key = $_POST['aes_key'];
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$duplex = $_POST['duplex'];
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$version_id = (float) $_POST['dfrn_version'];
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$public_key = ((x($_POST,'public_key')) ? $_POST['public_key'] : '');
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$dfrn_id = ((x($_POST,'dfrn_id')) ? hex2bin($_POST['dfrn_id']) : '');
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$source_url = ((x($_POST,'source_url')) ? hex2bin($_POST['source_url']) : '');
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$aes_key = ((x($_POST,'aes_key')) ? $_POST['aes_key'] : '');
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$duplex = ((x($_POST,'duplex')) ? intval($_POST['duplex']) : 0 );
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$version_id = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
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logger('dfrn_confirm: requestee contacted: ' . $node);
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