Adding Channelate

Fixes #3

channelate.php

@@ -0,0 +1,54 @@
+<?php
+// Channelate
+// A fairly simple WordPress site
+
+// Start by navigating to the latest comic
+$html = file_get_contents('https://www.channelate.com/');
+preg_match('@img src="https://www.channelate.com/wp-content/uploads/(.+\\.png)@', $html, $matches);
+
+if (empty($matches[1])) {
+    echo "No comic found on home page! :(\n";
+    return;
+}
+
+if (!is_dir('channelate')) {
+    mkdir('channelate');
+}
+
+// Download current page's comic, load previous comic webpage, repeat
+while (true) {
+    $filename = basename($matches[1]);
+    if (is_file('channelate/' . $filename)) {
+        return;
+    }
+
+    echo "Downloading {$filename}\n";
+    $url = "https://www.channelate.com/wp-content/uploads/{$matches[1]}";
+    $data = @file_get_contents($url);
+    if ($data) {
+        file_put_contents("channelate/{$filename}", $data);
+    }
+
+    // Find previous page link
+    $regex = '@href="(https://www.channelate.com/comic/[0-9a-zA-Z/-]+)" class="navi comic-nav-previous navi-prev"@';
+    preg_match($regex, $html, $prevMatch);
+
+    if (empty($prevMatch[1])) {
+        echo "No previous URL found!\n";
+        return;
+    }
+
+    $html = @file_get_contents($prevMatch[1]);
+    if (!$html) {
+        echo "Failed to load previous page!\n";
+        return;
+    }
+
+    preg_match('@img src="https://www.channelate.com/wp-content/uploads/(.+\\.png)@', $html, $matches);
+    if (empty($matches[1])) {
+        echo "No image found on page!\n";
+        return;
+    }
+
+    usleep(5e5);
+}