Add X-Plex-Language header to config (#1241)

Author: JonnyWong16

docs/configuration.rst

@@ -130,6 +130,10 @@ Section [header] Options
     Header value used for X_PLEX_IDENTIFIER to all Plex server and Plex client requests. This is generally
     a UUID, serial number, or other number unique id for the device (default: `result of hex(uuid.getnode())`).
 
+**language**
+    Header value used for X_PLEX_LANGUAGE to all Plex server and Plex client requests. This is an ISO 639-1
+    language code (default: en).
+
 **platform**
     Header value used for X_PLEX_PLATFORM to all Plex server and Plex client requests. Example platforms
     include: iOS, MacOSX, Android, LG (default: `result of platform.uname()[0]`).

plexapi/__init__.py

@@ -30,6 +30,7 @@
 X_PLEX_DEVICE = CONFIG.get('header.device', X_PLEX_PLATFORM)
 X_PLEX_DEVICE_NAME = CONFIG.get('header.device_name', uname()[1])
 X_PLEX_IDENTIFIER = CONFIG.get('header.identifier', str(hex(getnode())))
+X_PLEX_LANGUAGE = CONFIG.get('header.language', 'en')
 BASE_HEADERS = reset_base_headers()
 
 # Logging Configuration

plexapi/config.py

@@ -63,6 +63,7 @@ def reset_base_headers():
         'X-Plex-Device': plexapi.X_PLEX_DEVICE,
         'X-Plex-Device-Name': plexapi.X_PLEX_DEVICE_NAME,
         'X-Plex-Client-Identifier': plexapi.X_PLEX_IDENTIFIER,
+        'X-Plex-Language': plexapi.X_PLEX_LANGUAGE,
         'X-Plex-Sync-Version': '2',
         'X-Plex-Features': 'external-media',
     }