From 7047fe16da843d649baac375e9674f238072d7d5 Mon Sep 17 00:00:00 2001
From: Aaron Parecki <aaron@parecki.com>
Date: Sat, 6 Jan 2018 13:57:50 -0800
Subject: support posting code snippets

---
 controllers/controllers.php         | 102 +++++++++++++++++++++++++++++++
 public/css/style.css                |   5 ++
 views/new-code.php                  | 116 ++++++++++++++++++++++++++++++++++++
 views/partials/code-bookmarklet.php |   3 +
 4 files changed, 226 insertions(+)
 create mode 100644 views/new-code.php
 create mode 100644 views/partials/code-bookmarklet.php

diff --git a/controllers/controllers.php b/controllers/controllers.php
index 8c371c7..bc13dd3 100644
--- a/controllers/controllers.php
+++ b/controllers/controllers.php
@@ -694,6 +694,108 @@ $app->post('/repost', function() use($app) {
   }
 });
 
+$app->get('/code', function() use($app) {
+  if($user=require_login($app)) {
+    $params = $app->request()->params();
+
+    $edit_data = ['content'=>'','name'=>''];
+
+    if(array_key_exists('edit', $params)) {
+      $source = get_micropub_source($user, $params['edit'], ['content','name']);
+      if(isset($source['content']) && is_array($source['content']) && isset($source['content'][0]))
+        $edit_data['content'] = $source['content'][0];
+      if(isset($source['name']) && is_array($source['name']) && isset($source['name'][0]))
+        $edit_data['name'] = $source['name'][0];
+      $url = $params['edit'];
+    } else {
+      $url = false;
+    }
+
+    $languages = [
+      'php' => ['php'],
+      'ruby' => ['rb'],
+      'python' => ['py'],
+      'perl' => ['pl'],
+      'javascript' => ['js'],
+      'html' => ['html','htm'],
+      'css' => ['css'],
+      'bash' => ['sh'],
+      'nginx' => ['conf'],
+      'apache' => [],
+      'text' => ['txt'],
+    ]; 
+    ksort($languages);
+    $language_map = [];
+    foreach($languages as $lang=>$exts) {
+      foreach($exts as $ext)
+        $language_map[$ext] = $lang;
+    }
+
+    render('new-code', array(
+      'title' => 'New Code Snippet',
+      'url' => $url,
+      'edit_data' => $edit_data,
+      'token' => generate_login_token(),
+      'languages' => $languages,
+      'language_map' => $language_map,
+      'my_hostname' => parse_url($user->url, PHP_URL_HOST),
+      'authorizing' => false,
+    ));
+  }
+});
+
+$app->post('/code', function() use($app) {
+  if($user=require_login($app)) {
+    $params = $app->request()->params();
+
+    $error = false;
+
+    if(isset($params['edit']) && $params['edit']) {
+      $micropub_request = [
+        'action' => 'update',
+        'url' => $params['edit'],
+        'replace' => [
+          'content' => [$params['content']]
+        ]
+      ];
+      if(isset($params['name']) && $params['name']) {
+        $micropub_request['replace']['name'] = [$params['name']];
+      }
+      $r = micropub_post_for_user($user, $micropub_request, null, true);
+
+      if(isset($r['location']) && $r['location'])
+        $location = $r['location'];
+      elseif(in_array($r['code'], [200,201,204]))
+        $location = $params['edit'];
+      elseif(in_array($r['code'], [401,403])) {
+        $location = false;
+        $error = 'Your Micropub endpoint denied the request. Check that Quill is authorized to update posts.';
+      } else {
+        $location = false;
+        $error = 'Your Micropub endpoint did not return a location header or a recognized response code';
+      }
+    } else {
+      $micropub_request = array(
+        'p3k-content-type' => 'code/' . $params['language'],
+        'content' => $params['content'],
+      );
+      if(isset($params['name']) && $params['name'])
+        $micropub_request['name'] = $params['name'];
+
+      $r = micropub_post_for_user($user, $micropub_request);
+
+      $location = $r['location'];
+    }
+
+    $app->response()['Content-type'] = 'application/json';
+    $app->response()->body(json_encode(array(
+      'location' => $location,
+      'error' => $r['error'],
+      'error_details' => $error,
+    )));
+  }
+});
+
 $app->get('/reply/preview', function() use($app) {
   if($user=require_login($app)) {
     $params = $app->request()->params();
diff --git a/public/css/style.css b/public/css/style.css
index 4a2acff..6dcf682 100644
--- a/public/css/style.css
+++ b/public/css/style.css
@@ -202,6 +202,11 @@ body {
     margin-top: 20px;
   }
 
+  textarea.code-snippet {
+    font-size: 12px;
+    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
+  }
+
 
 /** 
  * nicer file upload
diff --git a/views/new-code.php b/views/new-code.php
new file mode 100644
index 0000000..96a93d3
--- /dev/null
+++ b/views/new-code.php
@@ -0,0 +1,116 @@
+  <div class="narrow">
+    <?= partial('partials/header') ?>
+
+      <div style="clear: both;" class="notice-pad">
+        <div class="alert alert-success hidden" id="test_success"><strong>Success!</strong><br>Your post should be on your website now!<br><a href="" id="post_href">View your post</a></div>
+        <div class="alert alert-danger hidden" id="test_error"><strong>Your endpoint did not return a Location header.</strong><br>See <a href="/creating-a-micropub-endpoint">Creating a Micropub Endpoint</a> for more information.</div>
+      </div>
+
+      <form role="form" style="margin-top: 20px;" id="note_form">
+
+
+        <div class="form-group" id="note-name">
+          <label for="note_name">File Name (optional)</label>
+          <input type="text" id="note_name" value="<?= htmlspecialchars($this->edit_data['name']) ?>" class="form-control" placeholder="">
+        </div>
+
+        <div class="form-group">
+          <label for="note_content">Code</label>
+          <textarea id="note_content" value="" class="form-control code-snippet" style="height: 12em;"><?= htmlspecialchars($this->edit_data['content']) ?></textarea>
+        </div>
+
+        <? if(!$this->url): ?>
+        <label for="note_language">Language</label>
+        <select class="form-control" id="note_language">
+          <?php
+            foreach($this->languages as $lang=>$exts):
+              ?>
+              <option value="<?= $lang ?>"<?= $lang == 'text' ? ' selected="selected"' : '' ?>><?= $lang ?></option>
+              <?php
+            endforeach;
+          ?>
+        </select>
+        <? endif; ?>
+
+        <div style="float: right; margin-top: 6px;">
+          <button class="btn btn-success" id="btn_post"><?= $this->url ? 'Save' : 'Post' ?></button>
+        </div>
+
+        <input type="hidden" id="edit_url" value="<?= $this->url ?>">
+      </form>
+
+      <div style="clear: both;"></div>
+
+      <hr>
+      <div style="text-align: right;" id="bookmarklet">
+        Bookmarklet: <a href="javascript:<?= js_bookmarklet('partials/code-bookmarklet', $this) ?>" class="btn btn-default btn-xs">code</a>
+      </div>
+
+  </div>
+<script>
+$(function(){
+
+  var language_map = <?= json_encode($this->language_map) ?>;
+
+  $("#note_name").on("keyup", function(){
+    var name = $("#note_name").val();
+    if(name && (m=name.match(/\.([a-z]+)$/))) {
+      if(language_map[m[1]]) {
+        $("#note_language").val(language_map[m[1]]);
+      }
+    }
+  });
+
+  $("#note_content").on('keyup', function(){
+    var scrollHeight = document.getElementById("note_content").scrollHeight;
+    var currentHeight = parseInt($("#note_content").css("height"));
+    if(Math.abs(scrollHeight - currentHeight) > 20) {
+      $("#note_content").css("height", (scrollHeight+30)+"px");
+    }
+  });
+
+  $("#btn_post").click(function(){
+    $("#btn_post").addClass("loading disabled");
+
+    var syndications = [];
+    $("#syndication-container button.btn-info").each(function(i,btn){
+      syndications.push($(btn).data('syndication'));
+    });
+
+    var params = {
+      content: $("#note_content").val(),
+    };
+    if($("#edit_url").val() != "") {
+      params['edit'] = $("#edit_url").val();
+    } else {
+      params['language'] = $("#note_language").val();
+    }
+    if($("#note_name").val() != "") {
+      params['name'] = $("#note_name").val();
+    }
+
+    $.post("/code", params, function(response){
+      if(response.location != false) {
+
+        $("#test_success").removeClass('hidden');
+        $("#test_error").addClass('hidden');
+        $("#post_href").attr("href", response.location);
+        $("#note_form").addClass('hidden');
+
+        window.location = response.location;
+      } else {
+        $("#test_success").addClass('hidden');
+        $("#test_error").removeClass('hidden');
+        if(response.error_details) {
+          $("#test_error").text(response.error_details);
+        }
+        $("#btn_post").removeClass("loading disabled");
+      }
+
+    });
+    return false;
+  });
+
+});
+
+</script>
diff --git a/views/partials/code-bookmarklet.php b/views/partials/code-bookmarklet.php
new file mode 100644
index 0000000..d0cf219
--- /dev/null
+++ b/views/partials/code-bookmarklet.php
@@ -0,0 +1,3 @@
+(function(){
+  window.open("<?= Config::$base_url ?>code?"+(window.location.hostname=='<?= $this->my_hostname ?>'?"edit="+encodeURIComponent(window.location.href)+"&":"")+"token=<?= $this->token ?>");
+})();
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