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upload connection graphics & update doxygen headers to insert link to the spec
authorrabuzarus <>
Mon, 28 Nov 2016 15:23:47 +0000 (16:23 +0100)
committerrabuzarus <>
Mon, 28 Nov 2016 15:23:47 +0000 (16:23 +0100)
include/dfrn.php patch | blob | history
mod/dfrn_confirm.php patch | blob | history
mod/dfrn_notify.php patch | blob | history
spec/dfrn2_contact_confirmation.png [new file with mode: 0644] patch | blob
spec/dfrn2_contact_confirmation.svg [new file with mode: 0644] patch | blob
spec/dfrn2_contact_request.png [new file with mode: 0644] patch | blob
spec/dfrn2_contact_request.svg [new file with mode: 0644] patch | blob

diff --git a/include/dfrn.php b/include/dfrn.php
index 67cef59d956ccbe037a060e272ba9f83a1439c97..9cbf05ece2bf4da3374e1bc64c580ad55968e85d 100644 (file)
--- a/include/dfrn.php
+++ b/include/dfrn.php
@@ -3,7 +3,8 @@
  * @file include/dfrn.php
  * @brief The implementation of the dfrn protocol
  *
- * https://github.com/friendica/friendica/wiki/Protocol
+ * @see https://github.com/friendica/friendica/wiki/Protocol and
+ * https://github.com/friendica/friendica/blob/master/spec/dfrn2.pdf
  */
 
 require_once("include/Contact.php");
diff --git a/mod/dfrn_confirm.php b/mod/dfrn_confirm.php
index 51cd59c62fe100b203e6caf8683571725491318c..5aea4eede967524f4b093dd04657aebadb985479 100644 (file)
--- a/mod/dfrn_confirm.php
+++ b/mod/dfrn_confirm.php
@@ -1,17 +1,21 @@
 <?php
 
-/*
- * Module: dfrn_confirm
+/**
+ * @file mod/dfrn_confirm.php
+ * @brief Module: dfrn_confirm
  * Purpose: Friendship acceptance for DFRN contacts
- *
+ *.
  * There are two possible entry points and three scenarios.
- *
+ *.
  *   1. A form was submitted by our user approving a friendship that originated elsewhere.
  *      This may also be called from dfrn_request to automatically approve a friendship.
  *
  *   2. We may be the target or other side of the conversation to scenario 1, and will
  *      interact with that process on our own user's behalf.
- *
+ *.
+ *  @see PDF with dfrn specs: https://github.com/friendica/friendica/blob/master/spec/dfrn2.pdf
+ *    You also find a graphic which describes the confirmation process at
+ *    https://github.com/friendica/friendica/blob/master/spec/dfrn2_contact_confirmation.png
  */
 
 require_once('include/enotify.php');
@@ -22,7 +26,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
 
        if(is_array($handsfree)) {
 
-               /**
+               /*
                 * We were called directly from dfrn_request due to automatic friend acceptance.
                 * Any $_POST parameters we may require are supplied in the $handsfree array.
                 *
@@ -37,7 +41,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
                        $node = $a->argv[1];
        }
 
-               /**
+               /*
                 *
                 * Main entry point. Scenario 1. Our user received a friend request notification (perhaps
                 * from another site) and clicked 'Approve'.
@@ -87,7 +91,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
                        $activity = ((x($_POST,'activity'))   ? intval($_POST['activity'])      : 0 );
                }
 
-               /**
+               /*
                 *
                 * Ensure that dfrn_id has precedence when we go to find the contact record.
                 * We only want to search based on contact id if there is no dfrn_id,
@@ -103,7 +107,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
                        logger('Confirming follower with contact_id: ' . $cid);
 
 
-               /**
+               /*
                 *
                 * The other person will have been issued an ID when they first requested friendship.
                 * Locate their record. At this time, their record will have both pending and blocked set to 1.
@@ -139,7 +143,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
 
                if($network === NETWORK_DFRN) {
 
-                       /**
+                       /*
                         *
                         * Generate a key pair for all further communications with this person.
                         * We have a keypair for every contact, and a site key for unknown people.
@@ -166,7 +170,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
 
                        $params = array();
 
-                       /**
+                       /*
                         *
                         * Per the DFRN protocol, we will verify both ends by encrypting the dfrn_id with our
                         * site private key (person on the other end can decrypt it with our site public key).
@@ -212,7 +216,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
 
                        logger('Confirm: posting data to ' . $dfrn_confirm . ': ' . print_r($params,true), LOGGER_DATA);
 
-                       /**
+                       /*
                         *
                         * POST all this stuff to the other site.
                         * Temporarily raise the network timeout to 120 seconds because the default 60
@@ -506,7 +510,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
                //NOTREACHED
        }
 
-       /**
+       /*
         *
         *
         * End of Scenario 1. [Local confirmation of remote friend request].
diff --git a/mod/dfrn_notify.php b/mod/dfrn_notify.php
index 780fb456f5cd33f43e7bc6783196fd15e55570f1..6f6fc41c12d28078290c9bd85cc66f9dd01cc5db 100644 (file)
--- a/mod/dfrn_notify.php
+++ b/mod/dfrn_notify.php
@@ -1,5 +1,10 @@
 <?php
 
+/**
+ * @file mod/dfrn_notify.php
+ * @brief The dfrn notify endpoint
+ * @see PDF with dfrn specs: https://github.com/friendica/friendica/blob/master/spec/dfrn2.pdf
+ */
 require_once('include/items.php');
 require_once('include/dfrn.php');
 require_once('include/event.php');
@@ -7,7 +12,7 @@ require_once('include/event.php');
 require_once('library/defuse/php-encryption-1.2.1/Crypto.php');
 
 function dfrn_notify_post(&$a) {
-    logger(__function__, LOGGER_TRACE);
+       logger(__function__, LOGGER_TRACE);
        $dfrn_id      = ((x($_POST,'dfrn_id'))      ? notags(trim($_POST['dfrn_id']))   : '');
        $dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version']    : 2.0);
        $challenge    = ((x($_POST,'challenge'))    ? notags(trim($_POST['challenge'])) : '');
@@ -117,7 +122,7 @@ function dfrn_notify_post(&$a) {
 
        if($dissolve == 1) {
 
-               /**
+               /*
                 * Relationship is dissolved permanently
                 */
 
diff --git a/spec/dfrn2_contact_confirmation.png b/spec/dfrn2_contact_confirmation.png
new file mode 100644 (file)
index 0000000..ed30c79
Binary files /dev/null and b/spec/dfrn2_contact_confirmation.png differ
diff --git a/spec/dfrn2_contact_confirmation.svg b/spec/dfrn2_contact_confirmation.svg
new file mode 100644 (file)
index 0000000..7468e1e
--- /dev/null
+++ b/spec/dfrn2_contact_confirmation.svg
@@ -0,0 +1,161 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.2" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0" y="0" width="1633" height="2173" viewBox="0 0 1633 2173">
+<style type="text/css"><![CDATA[
+text { font:12px Dialog; }
+]]></style>
+<rect x="-485" y="-485" width="2603" height="3143" style="fill:rgb(255,255,255);stroke:none" />
+<clipPath id="clip1"><path d="M614,37 L1056,37 L1056,106 L614,106 L614,37 Z" /></clipPath>
+<path d="M616,39 L616,103 L1053,103 L1053,39 Z" style="fill:rgb(202,221,254);stroke:none" clip-path="url(#clip1)" />
+<clipPath id="clip2"><path d="M614,37 L1056,37 L1056,106 L614,106 L614,37 Z" /></clipPath>
+<path d="M616,39 L616,103 L1053,103 L1053,39 Z" style="fill:none;stroke:rgb(61,83,127)" clip-path="url(#clip2)" />
+<text x="649" y="76" style="font:18px Open Sans">Friendica - Contact confirmation</text>
+<clipPath id="clip3"><path d="M1198,202 L1388,202 L1388,244 L1198,244 L1198,202 Z" /></clipPath>
+<path d="M1208,204 C1203.5820313,204 1200,207.5820313 1200,212 L1200,233 C1200,237.4179688 1203.5820313,241 1208,241 L1377,241 C1381.4179688,241 1385,237.4179688 1385,233 L1385,212 C1385,207.5820313 1381.4179688,204 1377,204 Z" style="fill:rgb(0,131,191);stroke:none" clip-path="url(#clip3)" />
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+<text x="1213" y="225" style="font:13px Tahoma">bob@example.com</text>
+<image x="0" y="0" width="1374" height="231" xlink:href="data:image/png;base64,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" /><clipPath id="clip5"><path d="M181,198 L432,198 L432,240 L181,240 L181,198 Z" /></clipPath>
+<path d="M191,200 C186.5820313,200 183,203.5820313 183,208 L183,229 C183,233.4179688 186.5820313,237 191,237 L421,237 C425.4179688,237 429,233.4179688 429,229 L429,208 C429,203.5820313 425.4179688,200 421,200 Z" style="fill:rgb(0,131,191);stroke:none" clip-path="url(#clip5)" />
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+<text x="197" y="221" style="font:13px Tahoma">karen@karenhompage.com</text>
+<image x="0" y="0" width="418" height="227" xlink:href="data:image/png;base64,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" /><clipPath id="clip7"><path d="M215,325 L390,325 L390,367 L215,367 L215,325 Z" /></clipPath>
+<path d="M224,326 C219.5820313,326 216,329.5820313 216,334 L216,357 C216,361.4179688 219.5820313,365 224,365 L380,365 C384.4179688,365 388,361.4179688 388,357 L388,334 C388,329.5820313 384.4179688,326 380,326 Z" style="fill:rgb(127,127,127);stroke:none" clip-path="url(#clip7)" />
+<text x="230" y="348" style="font:13px Open Sans">notifications.php</text>
+<clipPath id="clip8"><path d="M30,409 L580,409 L580,566 L30,566 L30,409 Z" /></clipPath>
+<path d="M39,410 C34.5820313,410 31,413.5820313 31,418 L31,556 C31,560.4179688 34.5820313,564 39,564 L570,564 C574.4179688,564 578,560.4179688 578,556 L578,418 C578,413.5820313 574.4179688,410 570,410 Z" style="fill:rgb(255,255,3);stroke:none" clip-path="url(#clip8)" />
+<text x="45" y="432" style="font:13px Open Sans">notifications_content()</text>
+<text x="45" y="455" style="font:13px Open Sans">-----------------------------------------</text>
+<text x="45" y="501" style="font:13px Open Sans">- This is the page where Karen see Bobs friendship request</text>
+<text x="45" y="524" style="font:13px Open Sans">- the submit form redirects to Karens local dfrn_confirm page </text>
+<text x="45" y="547" style="font:13px Open Sans">($dfrn_id, $contact_id, $intro_id are submitted)</text>
+<clipPath id="clip9"><path d="M219,640 L399,640 L399,682 L219,682 L219,640 Z" /></clipPath>
+<path d="M228,641 C223.5820313,641 220,644.5820313 220,649 L220,672 C220,676.4179688 223.5820313,680 228,680 L389,680 C393.4179688,680 397,676.4179688 397,672 L397,649 C397,644.5820313 393.4179688,641 389,641 Z" style="fill:rgb(127,127,127);stroke:none" clip-path="url(#clip9)" />
+<text x="234" y="663" style="font:13px Open Sans">dfrn_confirm.php</text>
+<clipPath id="clip10"><path d="M14,698 L594,698 L594,1798 L14,1798 L14,698 Z" /></clipPath>
+<path d="M23,699 C18.5820313,699 15,702.5820313 15,707 L15,1788 C15,1792.4179688 18.5820313,1796 23,1796 L584,1796 C588.4179688,1796 592,1792.4179688 592,1788 L592,707 C592,702.5820313 588.4179688,699 584,699 Z" style="fill:rgb(255,255,3);stroke:none" clip-path="url(#clip10)" />
+<text x="29" y="721" style="font:13px Open Sans">dfrn_confirm_post()</text>
+<text x="29" y="744" style="font:13px Open Sans">SCENARIO 1 ( no $_POST['source_url'] available)</text>
+<text x="29" y="767" style="font:13px Open Sans">--------------------------------------------------------------------------------</text>
+<text x="29" y="813" style="font:13px Open Sans">- contact data come either form $handsfree (if autoconfirm) or </text>
+<text x="29" y="836" style="font:13px Open Sans">from $_POST</text>
+<text x="29" y="882" style="font:13px Open Sans">- get all data about Karen form the user table</text>
+<text x="29" y="928" style="font:13px Open Sans">[Note: Bob have been issued an ID (contact issue-id) when he first </text>
+<text x="29" y="951" style="font:13px Open Sans">requested the friendship. Locate Bobs contact record. At this </text>
+<text x="29" y="974" style="font:13px Open Sans">time, his record will have both pending and blocked set to 1. </text>
+<text x="29" y="997" style="font:13px Open Sans">There won't be any dfrn_id if this is a network follower, so use </text>
+<text x="29" y="1020" style="font:13px Open Sans">the contact_id instead]</text>
+<text x="29" y="1066" style="font:13px Open Sans">- search for Bob in the contact table by contact_id, dfrn_id and </text>
+<text x="29" y="1089" style="font:13px Open Sans">issued-id not empty (for the uid -&gt; Karens user id)</text>
+<text x="29" y="1135" style="font:13px Open Sans">- if network = dfrn </text>
+<text x="29" y="1158" style="font:13px Open Sans">  -&gt; create a new keypair (prvkey &amp; pubkey) and update the </text>
+<text x="29" y="1181" style="font:13px Open Sans">contact</text>
+<text x="29" y="1227" style="font:13px Open Sans">[Note: Generate a key pair for all further communications with </text>
+<text x="29" y="1250" style="font:13px Open Sans">this person. We have a keypair for every contact, and a site key </text>
+<text x="29" y="1273" style="font:13px Open Sans">for unknown people. This provides a means to carry on </text>
+<text x="29" y="1296" style="font:13px Open Sans">relationships with other people any single key is compromised. It </text>
+<text x="29" y="1319" style="font:13px Open Sans">is a robust key. We're much more worried about key leakage </text>
+<text x="29" y="1342" style="font:13px Open Sans">than anybody cracking it.]</text>
+<text x="29" y="1388" style="font:13px Open Sans">     -&gt; update Bobs contact record (in the contact table) with the </text>
+<text x="29" y="1411" style="font:13px Open Sans">generated prvkey</text>
+<text x="29" y="1457" style="font:13px Open Sans">  -&gt; encrypting the dfrn_id with Karens prvkey (Bob can decrypt it </text>
+<text x="29" y="1480" style="font:13px Open Sans">on the other and with Karens site-pubkey) and add it to the </text>
+<text x="29" y="1503" style="font:13px Open Sans">transmit params.</text>
+<text x="29" y="1549" style="font:13px Open Sans">     -&gt; encrypting Karens profile url with Bobs site-pubkey (Bob </text>
+<text x="29" y="1572" style="font:13px Open Sans">can decrypt it with his own private key)  and add it to the </text>
+<text x="29" y="1595" style="font:13px Open Sans">transmit params.</text>
+<text x="29" y="1641" style="font:13px Open Sans">     -&gt; add the above generated public key to params which </text>
+<text x="29" y="1664" style="font:13px Open Sans">getting transmitted (if $aes_allow -&gt; encrypt the the public key)</text>
+<text x="29" y="1710" style="font:13px Open Sans">     -&gt; add duplex state and page-flags to the params</text>
+<text x="29" y="1756" style="font:13px Open Sans">  -&gt; send params to Bobs dfrn_confirm page ($res = </text>
+<text x="29" y="1779" style="font:13px Open Sans">post_url($dfrn_confirm,$params);</text>
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+<text x="1055" y="1365" style="font:13px Open Sans">SCENARIO 2 ( $_POST['source_url'] is available)</text>
+<text x="1055" y="1388" style="font:13px Open Sans">------------------------------------------------------------------------</text>
+<text x="1055" y="1434" style="font:13px Open Sans">- get all data about Bob from the user table (prvkey and uid form </text>
+<text x="1055" y="1457" style="font:13px Open Sans">Bob )</text>
+<text x="1055" y="1503" style="font:13px Open Sans">- decrypt the transmitted source_url  (profile url) with Bobs </text>
+<text x="1055" y="1526" style="font:13px Open Sans">prvkey</text>
+<text x="1055" y="1572" style="font:13px Open Sans">- get data of Karen from contact table by her source_url (and by </text>
+<text x="1055" y="1595" style="font:13px Open Sans">her user id)</text>
+<text x="1055" y="1641" style="font:13px Open Sans">- decrypt the dfrn_id sent by Karen with Karens site-pubkey </text>
+<text x="1055" y="1664" style="font:13px Open Sans">(taken from contact table)</text>
+<text x="1055" y="1710" style="font:13px Open Sans">- if possible decrpyt the pubkey sent by Karen with the prvkey of </text>
+<text x="1055" y="1733" style="font:13px Open Sans">Bob (taken from user table) -&gt; if this is not possible use the raw </text>
+<text x="1055" y="1756" style="font:13px Open Sans">pubkey</text>
+<text x="1055" y="1802" style="font:13px Open Sans">- search if the dfrn_id is already present in the contact table (if it </text>
+<text x="1055" y="1825" style="font:13px Open Sans">is prensent it is a duplicate)</text>
+<text x="1055" y="1871" style="font:13px Open Sans">- update dfrn-id and pubkey for Karens contact entry in the </text>
+<text x="1055" y="1894" style="font:13px Open Sans">contact table</text>
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+<text x="1142" y="2019" style="font:13px Open Sans">-&gt; if duplex delete the issued-id</text>
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+<text x="1255" y="2140" style="font:13px Open Sans">send a notification</text>
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+<text x="205" y="1960" style="font:13px Open Sans">delete the intro of Bob</text>
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+<text x="171" y="38" style="font:13px Open Sans">Note: this chart respects only dfrn </text>
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+<text x="171" y="84" style="font:13px Open Sans">(for other areas it might be very </text>
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diff --git a/spec/dfrn2_contact_request.svg b/spec/dfrn2_contact_request.svg
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+<text x="1073" y="386" style="font:13px Open Sans"> dfrn_request.php</text>
+<text x="1146" y="409" style="font:13px Open Sans">-</text>
+<text x="968" y="432" style="font:13px Open Sans">https://karenhompage/dfrn_request/karin</text>
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+<text x="904" y="831" style="font:13px Open Sans">dfrn_request_post - SCENARIO 1</text>
+<text x="904" y="854" style="font:13px Open Sans">----------------------------------------------</text>
+<text x="904" y="900" style="font:13px Open Sans">- Cleanup old introductions that remain blocked + Cleanup </text>
+<text x="904" y="923" style="font:13px Open Sans">any old email intros - which will have a greater lifetime</text>
+<text x="904" y="969" style="font:13px Open Sans">- probe_url Bobs posted dfrn_url and get the network with </text>
+<text x="904" y="992" style="font:13px Open Sans">webfinger_dfrn</text>
+<text x="904" y="1038" style="font:13px Open Sans">- try to select all contact data of Bob (contact table) by the </text>
+<text x="904" y="1061" style="font:13px Open Sans">url ($_POST['dfrn_url] and profile uid ($a-&gt;profile['uid']) </text>
+<text x="904" y="1084" style="font:13px Open Sans">where self = 0 to look if this contact is already there (if </text>
+<text x="904" y="1107" style="font:13px Open Sans">issued-id or rel is already available return here because it </text>
+<text x="904" y="1130" style="font:13px Open Sans">seems that we are already connected)</text>
+<text x="904" y="1176" style="font:13px Open Sans">- create a issued-id with $issued_id = random_string();</text>
+<text x="904" y="1222" style="font:13px Open Sans">- if we already found a contact record above update the </text>
+<text x="904" y="1245" style="font:13px Open Sans">issued-id with the one we have created</text>
+<text x="904" y="1291" style="font:13px Open Sans">- otherwise if Bob is not already in the contact table scrape </text>
+<text x="904" y="1314" style="font:13px Open Sans">Bobs profile and create a new contact with this data (e.g. </text>
+<text x="904" y="1337" style="font:13px Open Sans">the scraped issued-id / profiles pubkey becomes contacts </text>
+<text x="904" y="1360" style="font:13px Open Sans">site-pubkey) in the contact table</text>
+<text x="904" y="1406" style="font:13px Open Sans">- select this created contact from contact table and create </text>
+<text x="904" y="1429" style="font:13px Open Sans">an intro in the intro table (blocked = 1)</text>
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+<text x="902" y="1580" style="font:13px Open Sans">redirect to Bobs request page</text>
+<text x="902" y="1626" style="font:13px Open Sans">goaway($parms['dfrn-request'] . "?dfrn_url=$dfrn_url"</text>
+<text x="902" y="1649" style="font:13px Open Sans">                            . '&amp;dfrn_version=' . </text>
+<text x="902" y="1672" style="font:13px Open Sans">DFRN_PROTOCOL_VERSION</text>
+<text x="902" y="1695" style="font:13px Open Sans">                            . '&amp;confirm_key='  . $hash</text>
+<text x="902" y="1718" style="font:13px Open Sans">                            . (($aes_allow) ? "&amp;aes_allow=1" : "")</text>
+<text x="902" y="1741" style="font:13px Open Sans">                    );</text>
+<text x="902" y="1787" style="font:13px Open Sans">http://example.com/dfrn_request/bob?dfrn_url=6874747</text>
+<text x="902" y="1810" style="font:13px Open Sans">03a2f2f6b6172656e686f6d65706167652e636f6d2f70726f66</text>
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+<text x="149" y="1422" style="font:13px Open Sans">http://example.com/dfrn_request/bob?</text>
+<text x="149" y="1445" style="font:13px Open Sans">dfrn_url=</text>
+<text x="149" y="1468" style="font:13px Open Sans">687474703a2f2f6b6172656e686f6d65706167652e</text>
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+<text x="149" y="1560" style="font:13px Open Sans">dfrn_request_content()</text>
+<text x="149" y="1583" style="font:13px Open Sans">------------------------------------------</text>
+<text x="149" y="1606" style="font:13px Open Sans">- copy the posted parameters (dfrn_url, key and so on) </text>
+<text x="149" y="1629" style="font:13px Open Sans">to $_POST</text>
+<text x="149" y="1698" style="font:13px Open Sans"> dfrn_request_post() - SCENARIO 2 </text>
+<text x="149" y="1721" style="font:13px Open Sans">($_POST['localconfirm'] == 1)</text>
+<text x="149" y="1744" style="font:13px Open Sans">-----------------------------------------------------------------------</text>
+<text x="149" y="1767" style="font:13px Open Sans">- if(local_user() &amp;&amp; ($a-&gt;user['nickname'] == $a-</text>
+<text x="149" y="1790" style="font:13px Open Sans">&gt;argv[1]) &amp;&amp; (x($_POST,'dfrn_url')))</text>
+<text x="149" y="1813" style="font:13px Open Sans">-&gt;</text>
+<text x="149" y="1859" style="font:13px Open Sans">- $confirm_key comes from $_POST</text>
+<text x="149" y="1905" style="font:13px Open Sans">- get data for contact Karen (contact table) by </text>
+<text x="149" y="1928" style="font:13px Open Sans">$dfrn_url (contacts url and nurl) -&gt; if contact Karen </text>
+<text x="149" y="1951" style="font:13px Open Sans">does already have a dfrn-id Bob seems already </text>
+<text x="149" y="1974" style="font:13px Open Sans">connected with Karen (abort here)</text>
+<text x="149" y="2020" style="font:13px Open Sans">- if this contact (Karen) isn't available in the contact </text>
+<text x="149" y="2043" style="font:13px Open Sans">tabel, scrape Karens profile page to pick up the dfrn </text>
+<text x="149" y="2066" style="font:13px Open Sans">links, key, fn, and photo</text>
+<text x="149" y="2112" style="font:13px Open Sans">- create a contact for Karen in the contact table with </text>
+<text x="149" y="2135" style="font:13px Open Sans">the scraped data (Karens pubkey becomes the contact </text>
+<text x="149" y="2158" style="font:13px Open Sans">site-pubkey)</text>
+<text x="149" y="2204" style="font:13px Open Sans">- fetch_url($dfrn_request . '?confirm_key=' . </text>
+<text x="149" y="2227" style="font:13px Open Sans">$confirm_key);</text>
+<text x="149" y="2273" style="font:13px Open Sans">- fetch_url(http://karenhomepage.com/dfrn_request?</text>
+<text x="149" y="2296" style="font:13px Open Sans">confirm_key=”ABC123”)</text>
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+<text x="871" y="2320" style="font:13px Open Sans">----------------------------------------------------------------------------------------------</text>
+<text x="871" y="2366" style="font:13px Open Sans">- select the intro by confirm_key (intro table) -&gt; get contact id</text>
+<text x="871" y="2389" style="font:13px Open Sans">- use the intro contact id to get the contact in the contact table</text>
+<text x="871" y="2412" style="font:13px Open Sans">- build a notification package ( notification(array.....) )</text>
+<text x="871" y="2435" style="font:13px Open Sans">- update intro in intro table (blocked = 0)</text>
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+<text x="242" y="2493" style="font:13px Open Sans">- goaway($forwardurl);</text>
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+<text x="29" y="38" style="font:13px Open Sans">Note: this chart respects only dfrn </text>
+<text x="29" y="61" style="font:13px Open Sans">contacts and focuses on key exchange </text>
+<text x="29" y="83" style="font:13px Open Sans">(for other areas it might be very </text>
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+<text x="885" y="537" style="font:13px Open Sans">------------------------------------</text>
+<text x="885" y="583" style="font:13px Open Sans">- the page for the on Katrins server where Bob do a connection </text>
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Unnamed repository; edit this file 'description' to name the repository.