Level 3

django_views_routing_homework/settings.py

@@ -21,7 +21,6 @@
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',

django_views_routing_homework/urls.py

@@ -10,6 +10,10 @@
 from django_views_routing_homework.views.level_2.b_greet_user_language import greet_user_in_different_languages_view
 from django_views_routing_homework.views.level_2.c_product_type import get_products_view
 from django_views_routing_homework.views.level_2.d_authorization import authorization_view, process_authorization_view
+from django_views_routing_homework.views.level_3.b_validate_user_data import ValidateUserDataView
+from django_views_routing_homework.views.level_3.a_user_ip import ShowUserIpView
+from django_views_routing_homework.views.level_3.c_github_full_name import FetchNameFromGithubView
+from django_views_routing_homework.views.level_3.d_file_generation import GenerateFileWithTextView
 
 urlpatterns = [
     path('admin/', admin.site.urls),
@@ -23,4 +27,8 @@
     path('authorization/', authorization_view),
     path('process-authorization/', process_authorization_view),
     path('greet/<slug:name>/<slug:language>/', greet_user_in_different_languages_view),
+    path('show-user-ip/', ShowUserIpView.as_view()),
+    path('validate-user-data/', ValidateUserDataView.as_view()),
+    path('user/github/<slug:github_username>/full-name', FetchNameFromGithubView.as_view()),
+    path('text/generate/', GenerateFileWithTextView.as_view())
 ]

django_views_routing_homework/views/level_3/a_user_ip.py

@@ -5,8 +5,10 @@
 https://docs.djangoproject.com/en/4.2/ref/request-response/#django.http.HttpRequest.META
 """
 
+from django.views import View
 from django.http import HttpResponse, HttpRequest
 
 
-def show_user_ip_view(request: HttpRequest) -> HttpResponse:
-    pass  # код писать тут
+class ShowUserIpView(View):
+    def get(self, request: HttpRequest) -> HttpResponse:
+        return HttpResponse(request.META["REMOTE_ADDR"])

django_views_routing_homework/views/level_3/b_validate_user_data.py

@@ -17,9 +17,59 @@
 Для тестирования рекомендую использовать Postman.
 Когда будете писать код, не забывайте о читаемости, поддерживаемости и модульности.
 """
+import json
+import re
 
+from django.core.validators import EmailValidator
+from django.core.exceptions import ValidationError
 from django.http import HttpResponse, HttpRequest
+from django.http import JsonResponse
+from django.views import View
 
 
-def validate_user_data_view(request: HttpRequest) -> HttpResponse:
-    pass  # код писать тут
+class ValidateUserDataView(View):
+
+    @staticmethod
+    def validate_full_name(full_name: str) -> bool:
+        return 5 <= len(full_name) <= 256
+
+    @staticmethod
+    def validate_email(email: str) -> bool:
+        validator = EmailValidator()
+        try:
+            validator(email)
+            return True
+        except ValidationError:
+            return False
+
+    @staticmethod
+    def validate_registered_from(registered_from: str) -> bool:
+        return registered_from in ["website", "mobile_app"]
+
+    @staticmethod
+    def validate_age(age: str) -> bool:
+        try:
+            return age.isdigit()
+        except AttributeError:
+            return False
+
+    def validate_all_data(self, data: dict) -> dict:
+        is_valid = (
+            self.validate_email(data.get('email', False)) and
+            self.validate_full_name(data.get('full_name', False)) and
+            self.validate_registered_from(data.get('registered_from', False))
+        )
+        age = data.get('age', None)
+        if self.validate_age(age):
+            data['age'] = age
+        elif age is not None:
+            is_valid = False
+        return {"is_valid": is_valid}
+
+    def post(self, request: HttpRequest) -> HttpResponse:
+        try:
+            data = json.loads(request.body.decode('utf-8'))
+        except json.JSONDecodeError:
+            return HttpResponse(status=400)
+        return JsonResponse(self.validate_all_data(data))
+

django_views_routing_homework/views/level_3/c_github_full_name.py

@@ -9,8 +9,18 @@
 - если пользователь на Гитхабе есть, но имя у него не указано, верните None вместо имени
 """
 
-from django.http import HttpResponse, HttpRequest
+from django.http import HttpResponse, HttpRequest, JsonResponse
+from django.views import View
+import requests
 
 
-def fetch_name_from_github_view(request: HttpRequest, github_username: str) -> HttpResponse:
-    pass  # код писать тут
+class FetchNameFromGithubView(View):
+    def get(self, request: HttpRequest, github_username: str) -> HttpResponse:
+        response = requests.get(f"https://api.github.com/users/{github_username}")
+        if response.status_code == 404:
+            return HttpResponse(status=404)
+
+        user_data = response.json()
+        name = user_data.get("name", None)
+        return JsonResponse({"name": name})
+

django_views_routing_homework/views/level_3/d_file_generation.py

@@ -15,7 +15,38 @@
 """
 
 from django.http import HttpResponse, HttpRequest
+from django.views import View
+from faker import Faker
 
 
-def generate_file_with_text_view(request: HttpRequest) -> HttpResponse:
-    pass  # код писать тут
+class GenerateFileWithTextView(View):
+
+    def generate_text(self, length: int) -> str:
+        fake = Faker()
+        text = ''
+        while len(text) < length:
+            text += fake.word() + ' '
+        text_cut = text[:length]
+        return text_cut
+
+    def validate_length(self, length: int) -> bool:
+        try:
+            int(length)
+        except ValueError or TypeError:
+            return False
+        if 0 <= int(length) <= 10000:
+            return True
+        return False
+
+    def get(self, request: HttpRequest) -> HttpResponse:
+      length = request.GET.get("length", None)
+      if not self.validate_length(length):
+          return HttpResponse(status=403)
+      response = HttpResponse(
+          content_type="text/txt",
+          headers={"Content-Disposition": 'attachment; filename="generated_file.txt"'},
+      )
+      text = self.generate_text(int(length))
+      response.write(text)
+      return response
+

requirements.txt

@@ -1 +1,12 @@
-django==4.2.3
+asgiref==3.7.2
+certifi==2023.7.22
+charset-normalizer==3.3.0
+Django==4.2.3
+Faker==19.6.2
+idna==3.4
+python-dateutil==2.8.2
+requests==2.31.0
+six==1.16.0
+sqlparse==0.4.4
+tzdata==2023.3
+urllib3==2.0.6