Add API repository functions

Now an user can create, edit, list, add conditions, start and stop a repository.

code/backend/nest_backend/__main__.py

@@ -33,6 +33,11 @@ app.config['CORS_HEADERS'] = 'Content-Type'
 app.add_url_rule("/doa", view_func=page_doa, methods=["GET", "POST"])
 app.add_url_rule("/api/login", view_func=page_login, methods=["POST"])
 app.add_url_rule("/api/user/create", view_func=page_user_create, methods=["POST"])
+app.add_url_rule("/api/user/remove", view_func=page_user_delete, methods=["POST"])
+app.add_url_rule("/api/repository/list", view_func=page_repository_list, methods=["POST"])
+app.add_url_rule("/api/repository/create", view_func=page_repository_create, methods=["POST"])
+app.add_url_rule("/api/repository/edit", view_func=page_repository_edit, methods=["POST"])
+app.add_url_rule("/api/repository/add_condition", view_func=page_repository_add_condition, methods=["POST"])
 
 if __name__ == "__main__":
     Base.create_all()

code/backend/nest_backend/database/tables/Repository.py

@@ -9,8 +9,9 @@ class Repository(Base.Model):
     __tablename__ = "repository"
     id = Base.Column(Base.Integer, primary_key=True)
     name = Base.Column(Base.String, nullable=False)
-    start = Base.Column(Base.DateTime, nullable=False)
+    start = Base.Column(Base.DateTime, nullable=True)
     end = Base.Column(Base.DateTime, nullable=True)
+    isActive = Base.Column(Base.Boolean, nullable=False, default=False)
     # Foreign Keys
     owner_id = Base.Column(Base.String, Base.ForeignKey("user.email"), nullable=False)
     # Relationships

code/backend/nest_backend/database/tables/__init__.py

@@ -13,3 +13,4 @@ from .Repository import Repository
 from .Tweet import Tweet
 from .User import User
 from .Uses import Uses
+from .Enums import ConditionType, OperationType

code/backend/nest_backend/gestione.py

@@ -9,6 +9,7 @@ from .database import *
 import bcrypt
 import functools
 from flask_jwt_extended import get_jwt_identity
+from flask import request, jsonify
 
 
 def authenticate(username, password):
@@ -61,3 +62,20 @@ def admin_or_403(f):
         return f(*args, **kwargs)
 
     return func
+
+
+def repository_auth(f):
+    @functools.wraps(f)
+    def func(*args, **kwargs):
+        user = find_user(get_jwt_identity())
+        repository_id = request.json.get("id")
+        if not repository_id:
+            return jsonify({"result": "failure", "msg": "Missing one or more parameters."}), 400
+        repository = Repository.query.filter_by(id=repository_id)
+        if not repository:
+            return jsonify({"result": "failure", "msg": "Can't find repository."}), 404
+        if repository.owner_id != user.email:
+            return jsonify({"result": "failure",
+                            "msg": "Stop right there, criminal scum! Nobody accesses protected data under MY watch!"}), 403
+        return f(*args, **kwargs)
+    return func

code/backend/nest_backend/routes/__init__.py

@@ -4,3 +4,4 @@ This module imports all the routes that return something to the frontend.
 
 from .doa import page_doa
 from .users import *
+from .repository import *

code/backend/nest_backend/routes/repository/__init__.py

@@ -0,0 +1,4 @@
+from .repository_add_condition import page_repository_add_condition
+from .repository_edit import page_repository_edit
+from .repository_create import page_repository_create
+from .repository_list import page_repository_list

code/backend/nest_backend/routes/repository/repository_add_condition.py

@@ -0,0 +1,34 @@
+from flask import render_template, abort, jsonify, request
+from ...database import *
+from flask_jwt_extended import jwt_required
+from ...gestione import *
+from flask_cors import cross_origin
+
+
+@cross_origin()
+@jwt_required()
+@repository_auth
+def page_repository_add_condition():
+    """
+    API call that allows to add conditions to a repository.
+    :form id: Repository ID
+    :form type: The type of the condition. It can either be an 'hashtag', a 'location' or 'time'
+    :form content: The content of the condition (#PdS2021, Roma, 18:00)
+    :returns: a JSON string that tells whether or not the procedure was a success.
+    """
+    type = request.json.get("type")
+    if not type or type not in dir(ConditionType):
+        return jsonify({"result": "failure", "msg": "Could not understand the type of the condition."}), 400
+    content = request.json.get("content")
+    if not content:
+        return jsonify({"result": "failure", "msg": "Could not find the content"}), 400
+    condition = Condition.query.filter(Condition.content.ilike(str(content))).filter_by(type=ConditionType.__getattr__(str(type)).value).first()
+    if not condition:
+        condition = Condition(content=content, type=ConditionType.__getattr__(str(type)).value)
+        Base.session.add(condition)
+    repository = Repository.query.filter_by(request.json.get("id"))
+    if Uses.query.filter_by(cid=condition.id, rid=repository.id):
+        return jsonify({"result": "failure", "msg": "This condition is already connected to the repository."}), 406
+    Base.session.add(Uses(cid=condition.id, rid=repository.id))
+    Base.session.commit()
+    return jsonify({"result": "success", "content": "Condition added successfully."}), 200

code/backend/nest_backend/routes/repository/repository_create.py

@@ -12,13 +12,14 @@ def page_repository_create():
     """
     API call that allows an user to create a new repository.
     :form name: The name of the repository.
-    :returns: If the user is logged in and
+    :returns: If the user is logged in and has provided the repository name, a JSON string is returned containing
+    the return status of the operation and the repository in json format.
     """
     user = find_user(get_jwt_identity())
     name = request.json.get("name")
     if not name:
-        return jsonify({"result": "failure", "msg": "Missing one or more parameters"}), 40
-    repository = Repository(name=name, start=datetime.datetime.now(), owner_id=user.email)
+        return jsonify({"result": "failure", "msg": "Missing one or more parameters"}), 400
+    repository = Repository(name=name, owner_id=user.email)
     Base.session.add(repository)
     Base.session.commit()
     return jsonify({"result": "success", "content": repository.to_json()}), 200

code/backend/nest_backend/routes/repository/repository_edit.py

@@ -0,0 +1,28 @@
+from flask import render_template, abort, jsonify, request
+from ...database import *
+from flask_jwt_extended import jwt_required
+from ...gestione import *
+from flask_cors import cross_origin
+import datetime
+
+
+@cross_origin()
+@jwt_required()
+@repository_auth
+def page_repository_edit():
+    """
+    This API call allows to edit a repository.
+    :form name: If present, it changes the repository name.
+    :form close: If present, it closes the repository.
+    :returns: A JSON formatted string that either contains an error or the updated representation of the repository.
+    """
+    repository = Repository.query.filter_by(id=request.json['id'])
+    if 'name' in request.json:
+        repository.name = request.json['name']
+    if 'close' in request.json and not repository.end and repository.isActive:
+        repository.end = datetime.datetime.now()
+        repository.isActive = False
+    if 'open' in request.json and not repository.isActive and not repository.end:
+        repository.isActive = True
+    Base.session.commit()
+    return jsonify({"result": "success", "content":repository.to_json()})

code/backend/nest_backend/routes/repository/repository_list.py

@@ -0,0 +1,18 @@
+from flask import render_template, abort, jsonify, request
+from ...database import *
+from flask_jwt_extended import jwt_required
+from ...gestione import *
+from flask_cors import cross_origin
+
+
+@cross_origin()
+@jwt_required()
+def page_repository_list():
+    """
+    API call that returns the list of repositories.
+    :returns: a JSON-formatted string that contains under the "content" field the list of repositories that belong to
+    the user ("owner") and a list of repositories that he can spectate ("spectator").
+    """
+    user = find_user(get_jwt_identity())
+    return {"result": "success", "content": {"owner": [r.to_json() for r in user.owner_of],
+                                             "spectator": [r.repository.to_json() for r in user.authorizations]}}