shii.moe

commit 3decd37d3f9c65980fe1805bc6975f95a543b2f5
parent 3b19045227bbb5012f1f804a7ed5f90227f04031
Author: knutsen <samuel@knutsen.co>
Date:   Tue,  8 Jun 2021 22:53:55 +0100

Spam filtering.

Diffstat:
M
shiimoe.py
 | 
16
+++++++++++++++-
M
templates/guestbook.html
 | 
2
+-

2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/shiimoe.py b/shiimoe.py
@@ -68,6 +68,8 @@ def render_guestbook(**kw):
 def guestbook():
     return render_guestbook()
 
+LINK_MATCH = re.compile("https?://")
+
 @app.route('/postcomment', methods=['POST'])
 def postcomment():
     now = datetime.now()
@@ -79,9 +81,21 @@ def postcomment():
           request.environ.get('REMOTE_ADDR')    or
           request.remote_addr)
 
+    err = lambda msg: render_guestbook(error_msg=msg)
+
     # Comment or name left empty, send error message.
     if not (name or "").strip() or not (comment or "").strip():
-        return render_guestbook(error_msg="Please provide a name and comment.")
+        return err("Please provide a name and comment.")
+
+    # Spam filtering!!
+    if len(name) > 130:
+        return err("You're taking the piss with a name that long mate.")
+    if len(comment) > 850:
+        return err("No more than 850 characters!")
+    if name.lower() == "annasysdek":
+        return err("Sorry, that name is toxic. Pick another.")
+    if len(LINK_MATCH.findall(comment)) > 2:
+        return err("No more than two (2) links!")
 
     comments = read_comments()
     comments.append({
diff --git a/templates/guestbook.html b/templates/guestbook.html
@@ -116,7 +116,7 @@
         <input class="name-input input" name="name" placeholder="Your name" required>
         <div class="textbox">
         <textarea class="comment-input input" name="comment"
-                  placeholder="# Your comment&#x0a;&#x0a;(≤2 links, ≤500 characters)"
+                  placeholder="# Your comment&#x0a;&#x0a;(≤2 links, ≤850 characters)"
                   required></textarea>
         <i class="fab fa-markdown"></i>
         </div>