added code for rendering simple blog entries

wortschlucker/src/wortschlucker.py

@@ -8,6 +8,7 @@ BASE_DIR = os.path.dirname(os.path.abspath(os.path.join(__file__, os.path.pardir
 import sys
 sys.path.insert(0, os.path.join(BASE_DIR, "src"))
 
+import tools
 import bobo
 import forms
 import sqlobject
@@ -34,6 +35,8 @@ db_uri = config.get("database", "uri")
 sqlobject.sqlhub.processConnection = sqlobject.connectionForURI(db_uri)
 loader = genshi.template.TemplateLoader(os.path.join(BASE_DIR, 'templates'), auto_reload=False)
 
+BLOG_DIR = os.path.join(BASE_DIR, "blog")
+
 
 BASE_DICT = {
     "base_url": "/",    # the trailing slash is necessary
@@ -556,6 +559,61 @@ def admin_poll(cancel=False, submit=None, admin_hash_key=None, author=None,
         else:
             return render("poll_admin_edit.html", input_data=data, **value_dict)
 
+def render_blog_entry(blog_id):
+    blog_info = get_blog_info(blog_id)
+    if blog_info is None:
+        return None
+    else:
+        value_dict = get_default_values()
+        value_dict["title"] = blog_info[0]
+        value_dict["date"] = blog_info[1]
+        value_dict["link"] = blog_info[2]
+        value_dict["body"] = blog_info[3]
+        return render("blog_entry.html", **value_dict)
+
+def get_blog_info(blog_id):
+    blog_file = os.path.join(BLOG_DIR, blog_id)
+    try:
+        input = open(blog_file)
+        title = input.readline()
+        body = input.read()
+        input.close()
+    except IOError:
+        return None
+    date = "%s.%s.%s %s:%s" % (blog_id[6:8], blog_id[4:6], blog_id[0:4],
+            blog_id[8:10], blog_id[10:12])
+    link = "%sblog/%s" % (get_default_values()["base_url"], blog_id)
+    body = tools.creole2html(body.decode("utf-8"))
+    return title, date, link, body
+
+def get_blog_ids():
+    def add_files_to_list(file_list, dirname, fnames):
+        for fname in fnames:
+            if re.match(r"^[0-9]{12}$", fname) \
+                    and os.path.isfile(os.path.join(dirname, fname)):
+                file_list.append(fname)
+        # remove all entries (e.g. sub-directories)
+        while len(fnames) > 0:
+            del fnames[0]
+    file_list = []
+    os.path.walk(BLOG_DIR, add_files_to_list, file_list)
+    return file_list
+
+@bobo.query('/blog')
+@bobo.query('/blog/')
+@bobo.query('/blog/:blog_id')
+@bobo.query('/blog/:blog_id/')
+def serve_blog(blog_id=None):
+    value_dict = get_default_values()
+    if blog_id and re.match(r"^[0-9]{12}$", blog_id):
+        # the blog_id should consist of 12 digits
+        result = render_blog_entry(blog_id)
+        if not result is None:
+            return result
+    # if anything fails: render the blog list
+    value_dict["blog_list"] = [get_blog_info(blog_id) for blog_id in get_blog_ids()]
+    return render("blog_list.html", **value_dict)
+
 @bobo.query('')
 def base():
     return bobo.redirect(BASE_DICT["base_url"])