Generate RSS for comments

app/services/processor.py

@@ -15,6 +15,8 @@ from app.models.report import Report
 import requests
 import json
 import config
+import PyRSS2Gen
+import markdown
 
 logger = logging.getLogger(__name__)
 queue = Queue()
@@ -146,9 +148,11 @@ def reply_comment_email(data):
         # update Comment row
         comment.published = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
         comment.save()
-
         logger.info('commit comment: %d' % comment_id)
 
+        # rebuild RSS
+        rss(token)
+
         # send approval confirmation email to admin
         email_body = get_template('approve_comment').render(original=message)
         mail(from_email, 'Re: ' + subject, email_body)
@@ -334,6 +338,31 @@ def report(token):
     Report.delete().execute()
 
 
+def rss(token):
+    site = Site.select().where(Site.token == token).get()
+    rss_title = get_template('rss_title_message').render(site=site.name)
+    md = markdown.Markdown()
+
+    items = []
+    for row in Comment.select().join(Site).where(
+            Site.token == token, Comment.published).order_by(-Comment.published).limit(10):
+        items.append(PyRSS2Gen.RSSItem(
+            title='%s - http://%s%s' % (row.author_name, site.url, row.url),
+            link="http://%s%s" % (site.url, row.url),
+            description=md.convert(row.content),
+            guid=PyRSS2Gen.Guid('%s%d' % (token, row.id)),
+            pubDate=row.published
+        ))
+
+    rss = PyRSS2Gen.RSS2(
+        title=rss_title,
+        link="http://" + site.url,
+        description="Commentaires du site '%s'" % site.name,
+        lastBuildDate=datetime.now(),
+        items=items)
+    rss.write_xml(open(config.RSS_FILE, "w"), encoding="utf-8")
+
+
 def mail(to_email, subject, message):
 
     headers = {'Content-Type': 'application/json; charset=utf-8'}
@@ -368,6 +397,10 @@ def start(template_dir):
     logger.info("load templates from directory %s" % template_dir)
     env = Environment(loader=FileSystemLoader(template_dir))
 
+    # generate RSS for all sites
+    for site in Site.select():
+        rss(site.token)
+
     # start processor thread
     proc = Processor()
     proc.start()

app/templates/en/rss_title_message.tpl

@@ -0,0 +1 @@
+Comments : {{ site }}

app/templates/fr/rss_title_message.tpl

@@ -0,0 +1 @@
+Commentaires du site : {{ site }}

config.py

@@ -18,3 +18,4 @@ SECRET = "Uqca5Kc8xuU6THz9"
 
 ROOT_URL = 'http://localhost:8000'
 
+RSS_FILE = 'comments.xml'

requirements.txt

@@ -3,6 +3,7 @@ Flask==0.10.1
 Flask-Cors==2.0.1
 itsdangerous==0.24
 Jinja2==2.7.3
+Markdown==2.6.2
 MarkupSafe==0.23
 peewee==2.6.0
 PyMySQL==0.6.6