New hook: post to Tumblr

example-hooks/post_tumblr.php

@@ -0,0 +1,158 @@
+<?php
+
+// Paste in your values for these strings:
+class TumblrPostHookCredentials
+{
+    public static $account_email = '';
+    public static $account_password = '';
+
+     // The part that goes here: (blog name).tumblr.com
+    public static $blog_name = 'test';
+}
+
+// Test your credentials by executing this file alone from the command line:
+//   php -f post_tumblr.php
+
+// Edit this function to customize the generated Tumblr posts.
+// The $post array is just like the $content['post'] arrays in the templates.
+// This function MUST return an associative array of Tumblr post variables documented here:
+// http://www.tumblr.com/docs/en/api/v1#api_write
+//
+// Or return false to skip posting this to Tumblr.
+//
+function tumblr_post_for_post(array $post)
+{
+    if (isset($post['link'])) {
+        return false;
+    } else {
+        return array(
+            'type' => 'link',
+            'name' => $post['post-title'],
+            'url' => $post['post-absolute-permalink'],
+            'description' => isset($post['sharing-summary']) ? $post['sharing-summary'] : ''
+        );
+    }
+}
+
+// ======== You probably don't want to edit anything below this line =========
+
+function tumblr_http_build_query_raw(array $arr)
+{
+    $out = array();
+    foreach ($arr as $name => $val) $out[] = rawurlencode($name) . '=' . rawurlencode($val);
+    return implode('&', $out);
+}
+
+function post_tumblr_link_to_post(array $post_array_for_template)
+{
+    $tumblr_post = tumblr_post_for_post($post_array_for_template);
+    if (! $tumblr_post) {
+        error_log("Not posting this to Tumblr");
+        return;
+    }
+
+    $request_data = tumblr_http_build_query_raw(
+        array_merge(
+            array(
+                'email'     => TumblrPostHookCredentials::$account_email,
+                'password'  => TumblrPostHookCredentials::$account_password,
+                'group'     => TumblrPostHookCredentials::$blog_name . '.tumblr.com',
+                'generator' => 'Second Crack'
+            ),
+        	$tumblr_post
+        )
+    );
+
+    $c = curl_init('https://www.tumblr.com/api/write');
+    curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 5);
+    curl_setopt($c, CURLOPT_TIMEOUT, 10);
+    curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
+    curl_setopt($c, CURLOPT_FAILONERROR, 0);
+    curl_setopt($c, CURLOPT_POST, true);
+    curl_setopt($c, CURLOPT_POSTFIELDS, $request_data);
+    curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
+    $result = curl_exec($c);
+    $status = curl_getinfo($c, CURLINFO_HTTP_CODE);
+    curl_close($c);
+
+    // Check for success
+    if ($status == 201) {
+        error_log("Posted to Tumblr: http://" . TumblrPostHookCredentials::$blog_name . ".tumblr.com/post/$result");
+    } else {
+        error_log("Posting to Tumblr failed (HTTP $status): $response");
+    }
+}
+
+$command_line_test_mode = isset($_SERVER['argv'][0]) && substr($_SERVER['argv'][0], -15) == 'post_tumblr.php';
+if ($command_line_test_mode) {
+    // test auth
+
+    $c = curl_init('https://www.tumblr.com/api/authenticate');
+    curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 5);
+    curl_setopt($c, CURLOPT_TIMEOUT, 10);
+    curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
+    curl_setopt($c, CURLOPT_FAILONERROR, 0);
+    curl_setopt($c, CURLOPT_POST, true);
+    curl_setopt($c, CURLOPT_POSTFIELDS, 
+        tumblr_http_build_query_raw(array(
+            'email'     => TumblrPostHookCredentials::$account_email,
+            'password'  => TumblrPostHookCredentials::$account_password,
+        ))
+    );
+    curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
+    $result = curl_exec($c);
+    $status = curl_getinfo($c, CURLINFO_HTTP_CODE);
+    curl_close($c);
+
+    // Check for success
+    libxml_use_internal_errors(true);
+    if ($status == 200 &&
+        ($dom = new DOMDocument()) &&
+        $dom->loadXML($result) &&
+        ($tumblelogs = $dom->getElementsByTagName('tumblelog'))
+    ) {
+        $permitted = false;
+        $names = array();
+        foreach ($tumblelogs as $tumblelog) {
+            if (! ($name = $tumblelog->getAttribute('name')) ) continue;
+            if ($name == TumblrPostHookCredentials::$blog_name) {
+                $permitted = true;
+                break;
+            }
+            $names[] = $name;
+        }
+
+        if ($permitted) {
+            echo "\nSuccessfully authenticated for " . TumblrPostHookCredentials::$blog_name . "\n";
+        } else {
+            echo "\nTumblrPostHookCredentials::\$blog_name is not set to one of your blog names.\nBlog names available on your account:\n\n\t" . implode("\n\t", $names) . "\n\n";
+            exit(1);            
+        }        
+    } else if ($status == 403) {
+        echo "\nInvalid Tumblr account email address or password.\n\n";
+        exit(1);
+    } else {
+        echo "\nTumblr returned an error:\n$result\n\n";
+        exit(1);
+    }
+
+    if (isset($_SERVER['argv'][1]) && $_SERVER['argv'][1] == 'post') {
+        post_tumblr_link_to_post(array(
+            'post-title' => 'Test post title',
+            'post-absolute-permalink' => 'http://www.tumblr.com/',
+            'sharing-summary' => 'This is a post about nothing.',
+        ));
+        echo "\n";
+    } else {
+        echo "Re-run with argument 'post' to create a test post on Tumblr.\n\n";
+    }
+} else {
+    class Tumblr extends Hook
+    {
+        public function doHook(Post $post)
+        {
+            post_tumblr_link_to_post($post->array_for_template());
+        }
+    }
+}
+