From 13bb06d2c93992375aa39eef4691407c1bb6c9cc Mon Sep 17 00:00:00 2001
From: Aaron Parecki <aaron@parecki.com>
Date: Fri, 19 Feb 2016 15:29:05 -0800
Subject: [PATCH] stub mf2 parsing

---
 README.md             | 24 ++++++++++++++++++------
 composer.json         |  3 ++-
 controllers/Parse.php | 16 ++++++++++++++--
 lib/Formats/Mf2.php   | 12 ++++++++++++
 tests/ParseTest.php   |  3 +--
 5 files changed, 47 insertions(+), 11 deletions(-)
 create mode 100644 lib/Formats/Mf2.php

diff --git a/README.md b/README.md
index eca805a..7fb01cb 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,18 @@
 Percolator
 ==========
 
-API
----
+
+## Discovering Content
+
+The contents of the URL is checked in the following order:
+
+* A supported silo URL
+* h-entry, h-event, h-card
+* OEmbed
+* OGP
+
+
+## API
 
 To parse a page and return structured data for the contents of the page, simply pass a url to the parse route.
 
@@ -31,14 +41,14 @@ In both cases, the response will be a JSON object containing a key of "type". If
 Other possible errors are listed below:
 
 * not_found: The URL provided was not found. (Returned 404 when fetching)
-* invalid_ssl: There was an error validating the SSL certificate. This may happen if the SSL certificate has expired, or was signed by a root authority not recognized by this service.
+* ssl_cert_error: There was an error validating the SSL certificate. This may happen if the SSL certificate has expired.
+* ssl_unsupported_cipher: The web server does not support any of the SSL ciphers known by the service.
 * timeout: The service timed out trying to connect to the URL.
 * invalid_content: The content at the URL was not valid. For example, providing a URL to an image will return this error.
 * no_link_found: The target link was not found on the page. When a target parameter is provided, this is the error that will be returned if the target could not be found on the page.
+* no_content: No usable content could be found at the given URL.
 
-
-Response Format
----------------
+## Response Format
 
 ```json
 {
@@ -75,6 +85,8 @@ The content will be an object that always contains a "text" property and may con
 
 The author will always be set in the entry if available. The service follows the [authorship discovery](http://indiewebcamp.com/authorship) algorithm to try to find the author information elsewhere on the page if it is not inside the entry in the source document.
 
+All URLs provided in the output are absolute URLs. If the source document contains a relative URL, it will be resolved first.
+
 Replies, likes, reposts, etc. of this post will be included if they are listed on the page.
 
 ```json
diff --git a/composer.json b/composer.json
index d6c8533..60dbf6c 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,8 @@
       "lib/helpers.php",
       "controllers/Main.php",
       "controllers/Parse.php",
-      "lib/HTTP.php"
+      "lib/HTTP.php",
+      "lib/Formats/Mf2.php"
     ]
   },
   "autoload-dev": {
diff --git a/controllers/Parse.php b/controllers/Parse.php
index d9d1314..bf58ae2 100644
--- a/controllers/Parse.php
+++ b/controllers/Parse.php
@@ -2,6 +2,8 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 
+use Percolator\Formats;
+
 class Parse {
 
   public $http;
@@ -103,10 +105,20 @@ class Parse {
       }
     }
 
+    // Now start pulling in the data from the page. Start by looking for microformats2
+    $mf2 = mf2\Parse($result['body']);
+    if($mf2 && count($mf2['items']) > 0) {
+      $data = Formats\Mf2::parse($mf2);
+      return $this->respond($response, 200, $data);
+    }
+
+    // TODO: look for other content like OEmbed or known services later
 
 
-    return $this->respond($response, 200, [
-      'url' => $url,
+    return $this->respond($response, 400, [
+      'type' => 'error',
+      'error' => 'no_content',
+      'error_description' => 'No usable content could be found at the given URL'
     ]);
   }
 
diff --git a/lib/Formats/Mf2.php b/lib/Formats/Mf2.php
new file mode 100644
index 0000000..95c4b83
--- /dev/null
+++ b/lib/Formats/Mf2.php
@@ -0,0 +1,12 @@
+<?php
+namespace Percolator\Formats;
+
+class Mf2 {
+
+  public static function parse($mf2) {
+    return [
+      'type' => 'entry'
+    ];
+  }
+
+}
diff --git a/tests/ParseTest.php b/tests/ParseTest.php
index 1360440..f103179 100644
--- a/tests/ParseTest.php
+++ b/tests/ParseTest.php
@@ -54,11 +54,10 @@ class ParseTest extends PHPUnit_Framework_TestCase {
     $response = $this->parse(['url' => $url, 'target' => 'http://target.example.com']);
 
     $body = $response->getContent();
-    print_r($body);
     $this->assertEquals(200, $response->getStatusCode());
     $data = json_decode($body);
     $this->assertNotEquals('error', $data->type);
-    $this->assertNotEquals('no_link_found', $data->error);
+    $this->assertObjectNotHasAttribute('error', $data);
   }
 
 }
\ No newline at end of file