Implement simple attachment support

It is now possible to upload and view attachments!

Attachments are saved by their content hash, therefore they are
automatically deduplicated and we can later easily add integrity checks.

Still missing:
- Deleting attachments
- Multiple file inputs (idea: when the user fills in a file input, create a
  new empty file input beneath with js)
- (nice to have) Thumbnails

3 files changed, 36 insertions, 1 deletions

diff --git a/src/Handlers/AttachmentHandler.php b/src/Handlers/AttachmentHandler.php
new file mode 100644
index 0000000..9b329b0
--- /dev/null
+++ b/src/Handlers/AttachmentHandler.php
@@ -0,0 +1,26 @@
+<?php
+
+
+namespace Micropoly\Handlers;
+
+
+use Micropoly\Env;
+use Micropoly\Handler;
+use Micropoly\Models\Attachment;
+
+class AttachmentHandler implements Handler
+{
+    public function handle(\Micropoly\Env $env, array $variables)
+    {
+        $db = $env->db();
+
+        $attachment = Attachment::byId($db, $variables["id"]);
+        if ($attachment === null) {
+            (new NotFoundHandler())->handle($env, []);
+            return;
+        }
+
+        header("Content-Type: {$attachment->getMime()}");
+        readfile($attachment->getFilePath($env->attachmentsPath()));
+    }
+}
\ No newline at end of file
diff --git a/src/Handlers/NewNote.php b/src/Handlers/NewNote.php
index 9c60757..9d4286d 100644
--- a/src/Handlers/NewNote.php
+++ b/src/Handlers/NewNote.php
@@ -7,6 +7,7 @@ namespace Micropoly\Handlers;
 use Micropoly\Env;
 use Micropoly\Esc;
 use Micropoly\Handler;
+use Micropoly\Models\Attachment;
 use Micropoly\Models\Note;
 
 class NewNote implements Handler
@@ -29,6 +30,9 @@ class NewNote implements Handler
             $note->setTags($_POST["tag"]);
             $note->save($env->db());
 
+            if (isset($_FILES['attachments']))
+                Attachment::createFromUploads($env->db(), $env->attachmentsPath(), $note, $_FILES['attachments']);
+
             $url = $env->documentRoot() . "n/" . $note->getId();
             http_response_code(303);
             header("Location: {$url}");
diff --git a/src/Handlers/NoteHandler.php b/src/Handlers/NoteHandler.php
index afdabb5..aa1cf78 100644
--- a/src/Handlers/NoteHandler.php
+++ b/src/Handlers/NoteHandler.php
@@ -6,7 +6,9 @@ namespace Micropoly\Handlers;
 
 use Micropoly\Env;
 use Micropoly\Handler;
+use Micropoly\Models\Attachment;
 use Micropoly\Models\Note;
+use Micropoly\TemplateModelWrappers\NoteForTemplate;
 
 class NoteHandler implements Handler
 {
@@ -32,8 +34,11 @@ class NoteHandler implements Handler
             $note->setContent($_POST["content"]);
             $note->setTags($_POST["tag"]);
             $note->save($db);
+
+            if (isset($_FILES['attachments']))
+                Attachment::createFromUploads($env->db(), $env->attachmentsPath(), $note, $_FILES['attachments']);
         }
 
-        echo $env->twig()->render("/note.twig", ["note" => $note]);
+        echo $env->twig()->render("/note.twig", ["note" => new NoteForTemplate($db, $note)]);
     }
 }
\ No newline at end of file