Added atcoder support (#17)

* Added atcoder support

* Added Atcoder in readme

Author: sainad2222

README.md

@@ -38,5 +38,6 @@ Use this [JSON Formatter Chrome Extension](https://chrome.google.com/webstore/de
 * SPOJ
 * Interviewbit
 * Leetcode (new)
+* Atcoder
 
 If you would like to leave a feedback or request a feature, please [open an issue](https://github.com/Abhijeet-AR/Competitive_Programming_Score_API/issues) or feel free to PR. Do follow [these](https://help.github.com/articles/creating-a-pull-request/) instructions to make a valid PR.

details_soup.py

@@ -19,6 +19,8 @@ class UsernameError(Exception):
 class PlatformError(Exception):
     pass
 
+class BrokenChangesError(Exception):
+    pass
 
 class UserData:
     def __init__(self, username=None):
@@ -296,6 +298,47 @@ def __interviewbit(self):
 
         return details
 
+    def __atcoder(self):
+        url = "https://atcoder.jp/users/{}".format(self.__username)
+
+        page = requests.get(url)
+
+        if page.status_code != 200:
+            raise UsernameError("User not Found")
+
+        soup = BeautifulSoup(page.text, "html.parser")
+        tables = soup.find_all("table", class_="dl-table")
+        if len(tables)<2:
+            details = {
+                "status": "Success",
+                "username": self.__username,
+                "platform": "Atcoder",
+                "rating": "NA",
+                "highest": "NA",
+                "rank": "NA",
+                "level": "NA",
+            }
+            return details
+        rows = tables[1].find_all("td")
+        try:
+            rank = int(rows[0].text[:-2])
+            current_rating = int(rows[1].text)
+            spans = rows[2].find_all("span")
+            highest_rating = int(spans[0].text)
+            level = spans[2].text
+        except Exception as E:
+            raise BrokenChangesError(E)
+        details = {
+            "status": "Success",
+            "username": self.__username,
+            "platform": "Atcoder",
+            "rating": current_rating,
+            "highest": highest_rating,
+            "rank": rank,
+            "level": level,
+        }
+        return details
+
     # DEPRECATED
     def __leetcode(self):
         url = 'https://leetcode.com/{}'.format(self.__username)
@@ -490,6 +533,9 @@ def get_details(self, platform):
         if platform == 'leetcode':
             return self.__leetcode_v2()
 
+        if platform == 'atcoder':
+            return self.__atcoder()
+
         raise PlatformError('Platform not Found')
 
 

main.py

@@ -2,7 +2,7 @@
 from flask_restful import Api, Resource
 from flask_cors import CORS
 
-from details_soup import UserData, UsernameError, PlatformError
+from details_soup import UserData, UsernameError, PlatformError, BrokenChangesError
 from send_mail import Mail
 
 app = Flask(__name__)
@@ -23,6 +23,9 @@ def get(self, platform, username):
 
         except PlatformError:
             return {'status': 'Failed', 'details': 'Invalid Platform'}
+        
+        except BrokenChangesError:
+            return {'status': 'Failed', 'details': 'API broken due to site changes'}
 
 
 api.add_resource(Details,'/api/<string:platform>/<string:username>')
@@ -34,4 +37,4 @@ def invalid_route(e):
 
 
 if __name__ == '__main__':
-    app.run()
+    app.run()