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from flask import current_app
import requests
from requests_oauthlib import OAuth2Session
from urllib.parse import urlencode
class LinkedInService:
"""Service for LinkedIn API integration."""
def __init__(self):
self.client_id = current_app.config['CLIENT_ID']
self.client_secret = current_app.config['CLIENT_SECRET']
self.redirect_uri = current_app.config['REDIRECT_URL']
self.scope = ['openid', 'profile', 'email', 'w_member_social']
def get_authorization_url(self, state: str) -> str:
"""
Get LinkedIn authorization URL.
Args:
state (str): State parameter for security
Returns:
str: Authorization URL
"""
linkedin = OAuth2Session(
self.client_id,
redirect_uri=self.redirect_uri,
scope=self.scope,
state=state
)
authorization_url, _ = linkedin.authorization_url(
'https://www.linkedin.com/oauth/v2/authorization'
)
return authorization_url
def get_access_token(self, code: str) -> dict:
"""
Exchange authorization code for access token.
Args:
code (str): Authorization code
Returns:
dict: Token response
"""
url = "https://www.linkedin.com/oauth/v2/accessToken"
headers = {
"Content-Type": "application/x-www-form-urlencoded"
}
data = {
"grant_type": "authorization_code",
"code": code,
"redirect_uri": self.redirect_uri,
"client_id": self.client_id,
"client_secret": self.client_secret
}
response = requests.post(url, headers=headers, data=data)
response.raise_for_status()
return response.json()
def get_user_info(self, access_token: str) -> dict:
"""
Get user information from LinkedIn.
Args:
access_token (str): LinkedIn access token
Returns:
dict: User information
"""
url = "https://api.linkedin.com/v2/userinfo"
headers = {
"Authorization": f"Bearer {access_token}"
}
response = requests.get(url, headers=headers)
response.raise_for_status()
return response.json()
def publish_post(self, access_token: str, user_id: str, text_content: str, image_url: str = None) -> dict:
"""
Publish a post to LinkedIn.
Args:
access_token (str): LinkedIn access token
user_id (str): LinkedIn user ID
text_content (str): Post content
image_url (str, optional): Image URL
Returns:
dict: Publish response
"""
url = "https://api.linkedin.com/v2/ugcPosts"
headers = {
"Authorization": f"Bearer {access_token}",
"X-Restli-Protocol-Version": "2.0.0",
"Content-Type": "application/json"
}
if image_url:
# Handle image upload
register_body = {
"registerUploadRequest": {
"recipes": ["urn:li:digitalmediaRecipe:feedshare-image"],
"owner": f"urn:li:person:{user_id}",
"serviceRelationships": [{
"relationshipType": "OWNER",
"identifier": "urn:li:userGeneratedContent"
}]
}
}
r = requests.post(
"https://api.linkedin.com/v2/assets?action=registerUpload",
headers=headers,
json=register_body
)
if r.status_code not in (200, 201):
raise Exception(f"Failed to register upload: {r.status_code} {r.text}")
datar = r.json()["value"]
upload_url = datar["uploadMechanism"]["com.linkedin.digitalmedia.uploading.MediaUploadHttpRequest"]["uploadUrl"]
asset_urn = datar["asset"]
# Upload image
upload_headers = {
"Authorization": f"Bearer {access_token}",
"X-Restli-Protocol-Version": "2.0.0",
"Content-Type": "application/octet-stream"
}
# Download image and upload to LinkedIn
image_response = requests.get(image_url)
if image_response.status_code == 200:
upload_response = requests.put(upload_url, headers=upload_headers, data=image_response.content)
if upload_response.status_code not in (200, 201):
raise Exception(f"Failed to upload image: {upload_response.status_code} {upload_response.text}")
# Create post with image
post_body = {
"author": f"urn:li:person:{user_id}",
"lifecycleState": "PUBLISHED",
"specificContent": {
"com.linkedin.ugc.ShareContent": {
"shareCommentary": {"text": text_content},
"shareMediaCategory": "IMAGE",
"media": [{
"status": "READY",
"media": asset_urn,
"description": {"text": "Post image"},
"title": {"text": "Post image"}
}]
}
},
"visibility": {"com.linkedin.ugc.MemberNetworkVisibility": "PUBLIC"}
}
else:
# Create text-only post
post_body = {
"author": f"urn:li:person:{user_id}",
"lifecycleState": "PUBLISHED",
"specificContent": {
"com.linkedin.ugc.ShareContent": {
"shareCommentary": {
"text": text_content
},
"shareMediaCategory": "NONE"
}
},
"visibility": {
"com.linkedin.ugc.MemberNetworkVisibility": "PUBLIC"
}
}
response = requests.post(url, headers=headers, json=post_body)
response.raise_for_status()
return response.json() |