Merge pull request 'RSS module' (#19) from feature_rss into master

Reviewed-on: #19
Reviewed-by: Alexey Skobkin <skobkin-ru@ya.ru>

requirements.txt

@@ -4,3 +4,4 @@ idna==3.3
 pyTelegramBotAPI==4.5.0
 requests==2.27.1
 urllib3==1.26.9
+feedparser==6.0.2

rss.py

@@ -0,0 +1,35 @@
+import feedparser
+
+
+class FeedItem():
+    def __init__(self, url: str, title: str, description: str) -> None:
+        self.url = url
+        self.title = title
+        self.description = description
+
+class Feed():
+    def __init__(self, url: str, items: list[FeedItem]) -> None:
+        self.url = url
+        self.items = items
+
+class RssReader():
+    def get_feed(self, url: str) -> Feed:
+        f = feedparser.parse(url)
+        items = self.__get_items(f.entries)
+        return Feed(url, items)
+        
+    def __convert_to_feed_item(self, item: dict) -> FeedItem:
+        if 'title' in item:
+            title = item['title']
+        if 'link' in item:
+            url = item['link']
+        if 'summary' in item:
+            description = item['summary']
+        return FeedItem(url, title, description)
+
+    def __get_items(self, items: list) -> list:
+        list_items = []
+        for item in items:
+            list_items.append(self.__convert_to_feed_item(item))
+        return list_items
+