Restructure static site generation
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918a94b8b4
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8edb363efe
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SHA256:p4HP49CCk4YQMkJpWJ09L8peEPQWjERtdCRAFxPfbOY
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<?php
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$PROJECT_ROOT=__DIR__;
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$CACHE_ROOT="$PROJECT_ROOT/cache";
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$QR_CODES="$CACHE_ROOT/qr-codes";
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$ROOMS_FILE="$CACHE_ROOT/rooms.json";
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$DOCUMENT_ROOT="$PROJECT_ROOT/output";
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$TEMPLATES_ROOT="$PROJECT_ROOT/sites";
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$LANGUAGES_ROOT="$PROJECT_ROOT/languages"
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// set timeout for file_get_contents()
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ini_set('default_socket_timeout', 6); // in seconds, default is 60
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// curl timeout is millisecons
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$curl_connecttimeout_ms = 3000; // time for initiation of the connection
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$curl_timeout_ms = 6000; // max time for whole connection (incl. transfer)
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// do not report warnings (timeouts, SSL/TLS errors)
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error_reporting(E_ALL & ~E_WARNING);
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?>
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@ -1,201 +0,0 @@
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<?php
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/*
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* Build valid HTML5 page from provided (table) html
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*/
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function create_html_page_from_html_data($html_data, $title, $timestamp) {
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$pre =
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"<!DOCTYPE html>" . PHP_EOL .
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"<html lang=\"en\">" . PHP_EOL .
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" <head>" . PHP_EOL .
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" <meta charset=\"UTF-8\">" . PHP_EOL .
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" <link rel=\"icon\" type=\"image/svg+xml\" href=\"favicon.svg\" sizes=\"any\">" . PHP_EOL .
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" <link rel=\"stylesheet\" href=\"styles2.css\">" . PHP_EOL .
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" <script src=\"script2.js\" defer></script>" . PHP_EOL .
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" <title>" . $title . "</title>" . PHP_EOL .
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" </head>" . PHP_EOL .
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" <body onload=\"onLoad(" . $timestamp . ")\">" . PHP_EOL;
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$post =
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" </body>" . PHP_EOL .
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"</html>" . PHP_EOL;
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$html5 = $pre . $html_data . $post;
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return $html5;
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}
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/*
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* Writes HTML table with the following info:
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* Token + shortened pubkey | Name | Description | Users | View Links(?) | Join URL
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*/
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function get_table_html($info_arrays) {
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$table_lines = array();
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foreach($info_arrays as $id => $content) {
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/*
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* $id is "room token+shortened_pubkey", e.g. "example+09af"
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* Each $content looks like this:
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* $info_array = array(
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* "name" => "Name of the room",
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* "language" => "🇩🇪",
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* "description" => "Some text that describes the community",
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* "active_users" => 1234,
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* "preview_link" => "https://example.com/r/example",
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* "join_link" => "https://example.com/example?public_key=[64_hex_chars]"
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* );
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*/
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$exploded = explode("/", $content["join_link"]); // https: + "" + 1.2.3.4:56789 + token?public_key=0123456789abcdef
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$server_url = $exploded[0] . "//" . $exploded[2]; // extract server_url
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$token = explode("?", $exploded[3])[0]; // extract token
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$line =
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" <tr id=\"" . $id . "\">" . PHP_EOL .
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" <td class=\"td_identifier\">" . $id . "</td>" . PHP_EOL .
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" <td>" . $content["language"] . "</td>" . PHP_EOL .
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" <td>" . $content["name"] . "</td>" . PHP_EOL .
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" <td>" . $content["description"] . "</td>" . PHP_EOL .
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" <td class=\"td_users\">" . $content["active_users"] . "</td>" . PHP_EOL .
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" <td><a href=\"" . $content["preview_link"] . "\">" . $content["preview_link"] . "</a></td>" . PHP_EOL .
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" <td><img class=\"qr-code-icon\" src=\"qrcode-solid.svg\" onclick=\"displayQRModal('" . $id . "')\" alt=\"Pictogram of an QR code\"></td>" . PHP_EOL .
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" <td class=\"td_join_url\"><a href=\"" . $content["join_link"] . "\">" . $content["join_link"] . "</a></td>" . PHP_EOL .
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" </tr>" . PHP_EOL;
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$table_lines[] = $line;
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}
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// prefix
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$prefix =
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"<h1 id=\"headline\">Session Communities</h1>" . PHP_EOL .
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"<table id=\"tbl_communities\">" . PHP_EOL .
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" <tr>" . PHP_EOL .
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" <th onclick=\"sortTable(0)\" id=\"th_identifier\">Identifier</th>" . PHP_EOL .
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" <th onclick=\"sortTable(1)\" id=\"th_language\">L</th>" . PHP_EOL .
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" <th onclick=\"sortTable(2)\" id=\"th_name\">Name</th>" . PHP_EOL .
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" <th onclick=\"sortTable(3)\" id=\"th_description\">Description</th>" . PHP_EOL .
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" <th onclick=\"sortTable(4)\" id=\"th_users\">Users</th>" . PHP_EOL .
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" <th onclick=\"sortTable(5)\" id=\"th_preview\">Preview</th>" . PHP_EOL .
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" <th id=\"th_qr\">QR</th>" . PHP_EOL .
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" <th onclick=\"sortTable(7)\" id=\"th_join_url\">Join URL</th>" . PHP_EOL .
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" </tr>" . PHP_EOL;
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// suffix
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$suffix =
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"</table>" . PHP_EOL .
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"<table id=\"tbl_footer\">" . PHP_EOL .
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" <tr>" . PHP_EOL .
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" <td id=\"td_summary\">" . count($table_lines) . " unique Session Communities on " . count_servers($info_arrays) . " servers have been found.</td>" . PHP_EOL .
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" </tr>" . PHP_EOL .
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" <tr>" . PHP_EOL .
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" <td id=\"td_last_checked\">Last checked X minutes ago.</td>" . PHP_EOL .
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" </tr>" . PHP_EOL .
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"</table>" . PHP_EOL;
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// concatenate html
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$html = $prefix;
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foreach($table_lines as $line) {
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$html = $html . $line;
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}
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$html = $html . $suffix;
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return $html;
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}
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/*
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* Needed until all Community servers reliably generate QR codes again
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*/
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function get_qr_img_element_from_join_url($join_url) {
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$data = get_base64_qr_code_from_join_url($join_url);
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$mime = "image/png";
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$src = "data:" . $mime . ";base64," . $data;
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$result =
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"<img src=\"" . $src . "\" " .
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"alt=\"Community join link encoded as QR code image\" " .
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"class=\"qr-code\">";
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// echo($result . PHP_EOL);
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return $result;
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}
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/*
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* Use Google API to generate QR codes and encode them as base64
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*/
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function get_base64_qr_code_from_join_url($join_url) {
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// https://developers.google.com/chart/infographics/docs/qr_codes
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$data = urlencode($join_url);
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$size = "512x512";
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$api_url =
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"https://chart.googleapis.com/chart?cht=qr" .
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"&chs=" . $size .
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"&chl=" . $data .
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"&chld=L|0"; // error correction level: L = 7%, M = 15%, Q = 25%, H = 30% | margin in number of rows
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$img_base64 = base64_encode(file_get_contents($api_url));
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// echo($img_base64 . PHP_EOL);
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return $img_base64;
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}
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/*
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* TODO: Description
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*/
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function create_qr_code_modals_html($info_arrays) {
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$html = "";
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foreach($info_arrays as $id => $content) {
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/*
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* $id is "room token+shortened_pubkey", e.g. "example+09af"
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* Each $content looks like this:
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* $info_array = array(
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* "name" => "Name of the room",
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* "language" => "🇩🇪",
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* "description" => "Some text that describes the community",
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* "active_users" => 1234,
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* "preview_link" => "https://example.com/r/example",
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* "join_link" => "https://example.com/example?public_key=[64_hex_chars]"
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* );
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*/
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$img_elem = get_qr_img_element_from_join_url($content["join_link"]); // TODO: incorporate ID to use in js function
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$modal_html =
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"<div id=\"modal_" . $id . "\" class=\"qr-code-modal\">" . PHP_EOL .
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" <div class=\"qr-code-modal-content\">" . PHP_EOL .
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" <span class=\"qr-code-modal-close\" onclick=\"hideQRModal('" . $id . "')\">×</span>" . PHP_EOL .
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" " . $img_elem . PHP_EOL .
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" </div>" . PHP_EOL .
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"</div>" . PHP_EOL;
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$html = $html . $modal_html;
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}
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return $html;
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}
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/*
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* Generate the HTML for the toast/snackbar when you copy a join link
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*/
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function get_copy_snackbar() {
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$snackbar_html =
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"<div id=\"copy-snackbar\">" .
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"Copied URL to clipboard. Paste into Session app to join." .
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"</div>";
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return $snackbar_html;
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}
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/*
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* TODO: Description
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*/
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function generateHTML($timestamp, $info_arrays) {
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$title = "Self-updating list of active Session Communities";
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$table_html = get_table_html($info_arrays);
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$modal_html = create_qr_code_modals_html($info_arrays);
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$snackbar_html = get_copy_snackbar();
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$html =
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$table_html . PHP_EOL .
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$modal_html . PHP_EOL .
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$snackbar_html . PHP_EOL;
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$final_html = create_html_page_from_html_data($html, $title, $timestamp);
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return $final_html;
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}
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?>
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<?php
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// Perform static site generation.
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require_once "getenv.php";
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// https://stackoverflow.com/a/17161106
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function rglob($pattern, $flags = 0) {
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$files = glob($pattern, $flags);
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foreach (glob(dirname($pattern).'/*', GLOB_ONLYDIR|GLOB_NOSORT) as $dir) {
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$files = array_merge(
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[],
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...[$files, rglob($dir . "/" . basename($pattern), $flags)]
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);
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}
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return $files;
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}
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foreach (rglob("$TEMPLATES_ROOT/*.php") as $phppath) {
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// Do not render auxilliary PHP files.
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if (str_contains("$phppath", "/+") || $phppath[0] == "+")
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continue;
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$docpath = str_replace($TEMPLATES_ROOT, $DOCUMENT_ROOT, $phppath);
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$docpath = str_replace(".php", ".html", $docpath);
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// This works? Yes, yes it does.
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// We do this to isolate the environment and include-once triggers,
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// otherwise we could include the documents in an ob_* wrapper.
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$document = `php $phppath`;
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file_put_contents($docpath, $document);
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}
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?>
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<?php
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$PROJECT_ROOT = dirname(__FILE__);
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while (!file_exists("$PROJECT_ROOT/.phpenv")) {
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if ($PROJECT_ROOT == "/" || $PROJECT_ROOT == "")
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throw new RuntimeException("Could not find .phpenv file.");
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$PROJECT_ROOT = dirname($PROJECT_ROOT);
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}
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require_once "$PROJECT_ROOT/.phpenv";
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// set_include_path(get_include_path() . PATH_SEPARATOR . $PROJECT_ROOT);
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?>
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<?php
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// Perform full update of community list.
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require_once "fetch-servers.php";
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require_once "generate-html.php";
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?>
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<?php
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function room_qr_code_cached($room_id) {
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global $QR_CODES;
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return "$QR_CODES/$room_id.png";
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}
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/*
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* Use Google API to generate QR codes and encode them as base64
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*/
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function base64_qr_code($room_id, $join_url, $size = "512x512") {
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// Could use http_build_query() instead, but I won't break what works.
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// https://developers.google.com/chart/infographics/docs/qr_codes
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$png_cached = room_qr_code_cached($room_id);
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if (file_exists($png_cached))
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return base64_encode(file_get_contents($png_cached));
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$data = urlencode($join_url);
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$api_url =
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"https://chart.googleapis.com/chart?cht=qr" .
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"&chs=$size" .
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"&chl=$data" .
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"&chld=L|0";
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// error correction level: L = 7%, M = 15%, Q = 25%, H = 30%
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// | margin in number of rows
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$png = file_get_contents($api_url);
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file_put_contents($png_cached, $png);
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return base64_encode($png);
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}
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file_exists($QR_CODES) or mkdir($QR_CODES, 700);
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?>
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<?php foreach ($rooms as $id => $room): ?>
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<div id="modal_<?=$id?>" class="qr-code-modal">
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<div class="qr-code-modal-content">
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<span class="qr-code-modal-close" onclick='hideQRModal("<?=$id?>")'>
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×
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</span>
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<img
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src="data:image/png;base64,<?=base64_qr_code($id, $room->join_link)?>"
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alt="Community join link encoded as QR code"
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class="qr-code"
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>
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</div>
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</div>
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<?php endforeach; ?>
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<?php
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// Once handlers are attached in JS, this check ceases to be useful.
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function column_sortable($id) {
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return $id != "qr";
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}
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function sort_onclick($colno) {
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global $TABLE_COLUMNS;
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$column = $TABLE_COLUMNS[$colno];
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if (!column_sortable($column['id'])) return "";
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return " onclick='sortTable($colno)'";
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}
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$TABLE_COLUMNS = [
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['id' => "identifier", 'name' => "Identifier"],
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['id' => "language", 'name' => "L"],
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['id' => "name", 'name' => "Name"],
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['id' => "description", 'name' => "Description"],
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['id' => "users", 'name' => "Users"],
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['id' => "preview", 'name' => "Preview"],
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['id' => "qr", 'name' => "QR"],
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['id' => "join_url", 'name' => "Join URL"],
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];
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?>
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<table id="tbl_communities">
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<tr>
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<?php foreach ($TABLE_COLUMNS as $colno => $column): ?>
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<th<?=sort_onclick($colno)?> id="th_<?=$column['id']?>">
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<?=$column['name']?>
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</th>
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<?php endforeach; ?>
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</tr>
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<?php foreach ($rooms as $id => $room): ?>
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<tr id="<?=$id?>">
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<td class="td_identifier"><?=$id?></td>
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<td class="td_language"><?=$room->language?></td>
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<td class="td_name"><?=$room->name?></td>
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<td class="td_description">
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<?=$room->description?>
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</td>
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<td class="td_users"><?=$room->active_users?></td>
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<td class="td_preview">
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<a href="<?=$room->preview_link?>">
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<?=$room->preview_link?>
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</a>
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</td>
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<td class="td_qr_code">
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<img
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class="qr-code-icon"
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src="qrcode-solid.svg"
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onclick='displayQRModal("<?=$id?>")'
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alt="Pictogram of a QR code"
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>
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</td>
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<td class="td_join_url">
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<a href="<?=$room->join_link?>">
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<?=$room->join_link?>
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</a>
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</td>
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</tr>
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<?php endforeach; ?>
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</table>
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../php/getenv.php
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<?php
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// prerequisite include for sites and components
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require_once "+getenv.php";
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require_once "$PROJECT_ROOT/php/server-utils.php";
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$rooms_raw = file_get_contents($ROOMS_FILE);
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$rooms = json_decode($rooms_raw);
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$rooms_assoc = json_decode($rooms_raw, true);
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$timestamp = filemtime($ROOMS_FILE);
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<link rel="icon" type="image/svg+xml" href="favicon.svg" sizes="any">
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<link rel="stylesheet" href="styles2.css">
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<script src="script2.js" defer></script>
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<title>Self-updating list of active Session communities</title>
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</head>
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<body onload="onLoad(<?php echo $timestamp ?>)">
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<h1 id="headline">Session Communities</h1>
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<?php include "+components/qr_modals.php" ?>
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<?php include "+components/tbl_communities.php" ?>
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<table id="tbl_footer">
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<tr>
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<td id="td_summary">
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<?=count($rooms_assoc)?> unique Session Communities
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on <?=count_servers($rooms_assoc)?> servers have been found.
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</td>
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</tr>
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<tr>
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<td id="td_last_checked">Last checked X minutes ago.</td>
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</tr>
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</table>
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<div id="copy-snackbar">
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Copied URL to clipboard. Paste into Session app to join
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</div>
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</body>
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</html>
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Reference in New Issue