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<text x="503" y="71" style="font:18px Open Sans">Friendica - Contact request</text>
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<text x="1021" y="259" style="font:13px Tahoma">karenn@karenhompage.com</text>
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<text x="251" y="257" style="font:13px Tahoma">bob@example.com</text>
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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 $issued_id = random_string();</text>
<text x="904" y="1222" style="font:13px Open Sans">- if we already found a contact record above update the </text>
<text x="904" y="1245" style="font:13px Open Sans">issued-id with the one we have created</text>
<text x="904" y="1291" style="font:13px Open Sans">- otherwise if Bob is not already in the contact table scrape </text>
<text x="904" y="1314" style="font:13px Open Sans">Bobs profile and create a new contact with this data (e.g. </text>
<text x="904" y="1337" style="font:13px Open Sans">the scraped issued-id / profiles pubkey becomes contacts </text>
<text x="904" y="1360" style="font:13px Open Sans">site-pubkey) in the contact table (blocked = 1, pending = 1)</text>
<text x="904" y="1406" style="font:13px Open Sans">- select this created contact from contact table and create </text>
<text x="904" y="1429" style="font:13px Open Sans">an intro in the intro table (blocked = 1)</text>
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<text x="939" y="716" style="font:13px Open Sans">$_POST['dfrn_url'] is transmited and is Bobs profile url</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>
<text x="902" y="1833" style="font:13px Open Sans">696c652f6b6172656e&amp;aes_allow=1&amp;confirm_key=”ABC123”</text>
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<text x="302" y="1203" style="font:13px Open Sans">dfrn_request.php</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>
<text x="149" y="1491" style="font:13px Open Sans">636f6d2f70726f66696c652f6b6172656e&amp;aes_allow=1&amp;</text>
<text x="149" y="1514" style="font:13px Open Sans">confirm_key=”ABC123”</text>
<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 with blocked = 1 and pending = 1 </text>
<text x="149" y="2158" style="font:13px Open Sans">(Karens pubkey becomes the contact 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="1075" y="2050" style="font:13px Open Sans">dfrn_request.php</text>
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<text x="871" y="2228" style="font:13px Open Sans">http://karenhomepage.com/dfrn_request?confirm_key=”ABC123”</text>
<text x="871" y="2274" style="font:13px Open Sans">dfrn_request_content() -</text>
<text x="871" y="2297" style="font:13px Open Sans">(elseif((x($_GET,'confirm_key')) &amp;&amp; strlen($_GET['confirm_key'])) )</text>
<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="2447" style="font:13px Open Sans">Bob stays on his Friendica server</text>
<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>
<text x="29" y="106" style="font:13px Open Sans">incomplete)</text>
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<text x="885" y="514" style="font:13px Open Sans">dfrn_request_content()</text>
<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>
<text x="885" y="606" style="font:13px Open Sans">request</text>
<text x="885" y="629" style="font:13px Open Sans">- the form transmit on submit Bobs profile url as dfrn_url</text>
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<text x="405" y="323" style="font:10px Georgia">bob wants to make a request and is directed from karens profile page to karens dfrn-request page</text>
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<text x="576" y="1385" style="font:10px Georgia">redirict to bobs dfrn_request page</text>
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<text x="651" y="2168" style="font:10px Georgia">http://karenhomepage.com/dfrn_request?confirm_key=”ABC123”</text>
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<text x="1029" y="672" style="font:10px Georgia">Bob fills request form and presses submit</text>
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