feat: custom headers

CONTRIBUTING.md

@@ -35,6 +35,19 @@ In case of Google Cloud Identity-Aware Proxy, please specify these env variables
 - `IAP_AUTH_CLIENT_ID` - # pick [client ID of the application](https://console.cloud.google.com/apis/credentials) you are connecting to
 - `IAP_AUTH_SERVICE_ACCOUNT_JSON` - # generate in [Actions](https://console.cloud.google.com/iam-admin/serviceaccounts) -> Create key -> JSON
 
+#### Custom headers
+
+Using `headers` configuration:
+
+```json
+{
+  "index_name": "my_index",
+  "headers": {
+    "Authorization": "Bearer <my_token>"
+   }
+},
+```
+
 ### Installing Chrome Headless
 
 Websites that need JavaScript for rendering are passed through ChromeDriver.

scraper/src/config/config_loader.py

@@ -33,6 +33,7 @@ class ConfigLoader:
     index_name_tmp = None
     js_wait = 0
     js_render = False
+    headers = None
     keep_tags = []
     min_indexed_level = 0
     remove_get_params = False

scraper/src/index.py

@@ -53,6 +53,9 @@ def run_config(config):
         "Accept-Language": "en",
     }  # Defaults for scrapy https://docs.scrapy.org/en/latest/topics/settings.html#default-request-headers
 
+    if config.headers is not None:
+        headers.update(config.headers)
+
     # Cloudflare Zero Trust (CF)
     if (os.getenv("CF_ACCESS_CLIENT_ID") and
         os.getenv("CF_ACCESS_CLIENT_SECRET")):

scraper/src/tests/config_loader/headers_test.py

@@ -0,0 +1,38 @@
+# coding: utf-8
+from ...config.config_loader import ConfigLoader
+from .abstract import config
+import pytest
+
+
+class TestInit:
+    def test_header(self):
+        """ Should have a header """
+        # Given
+        c = config({
+            'headers': {
+                'Authorization': 'Bearer xyz'
+            }
+        })
+
+        config_loaded = ConfigLoader(c)
+
+        assert config_loaded.headers == {
+                'Authorization': 'Bearer xyz'
+        }
+
+    def test_multiple_header(self):
+        """ Should have headers """
+        # Given
+        c = config({
+            'headers': {
+                'Authorization': 'Bearer xyz',
+                'Custom': 1,
+            }
+        })
+
+        config_loaded = ConfigLoader(c)
+
+        assert config_loaded.headers == {
+                'Authorization': 'Bearer xyz',
+                'Custom': 1,
+        }