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my_parser.py
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#!/usr/bin/python3
# -*- coding: utf8 -*-
import re
from urllib.parse import urlparse, unquote
import requests
from bs4 import BeautifulSoup
from model import User, Post, Publication, Tag, Image, OutputFormat, to_dict
from constant import ROOT_URL, HTML_PARSER
from file_handler import IpfsHandler
def parse_user(payload):
user_dict = payload["payload"]["user"]
user_id = user_dict["userId"]
user = User(user_id)
username = user_dict["username"]
display_name = user_dict["name"]
avatar = user_dict["imageId"]
bio = user_dict["bio"]
twitter_name = user_dict["twitterScreenName"]
facebook_id = user_dict["facebookAccountId"]
user_meta_dict = payload["payload"]["userMeta"]
ref_dict = payload["payload"]["references"]
# interest_tags = user_meta_dict["interestTags"]
# user.interest_tags = parse_tags(interest_tags)
# author_tags = user_meta_dict["authorTags"]
# user.author_tags = parse_tags(author_tags)
publication_ids = ref_dict["Collection"]
if publication_ids is not None and len(publication_ids.keys()) > 0:
publication_list = []
for pub_id in publication_ids.keys():
publication = parse_publication(payload, pub_id)
publication_list.append(publication)
if len(publication_list) > 0:
user.publications = publication_list
stats_dict = ref_dict["SocialStats"][user_id]
following_count = stats_dict["usersFollowedCount"]
followby_count = stats_dict["usersFollowedByCount"]
user.user_id = user_id
user.username = username
user.display_name = display_name
user.avatar = avatar
user.bio = bio
user.twitter = twitter_name
user.facebook = facebook_id
user.following_count = following_count
user.followedby_count = followby_count
return to_dict(user)
def parse_publication(payload, pub_id=None):
if pub_id is None:
pub_id = payload["payload"]["collection"]["id"]
publication_dict = payload["payload"]["references"]["Collection"][pub_id]
publication = Publication(pub_id)
publication.display_name = publication_dict["name"]
publication.description = publication_dict["description"]
publication.creator_user_id = publication_dict["creatorId"]
image_dict = publication_dict["image"]
image = parse_images(image_dict)
if image is not None:
publication.image = image
logo_dict = publication_dict["logo"]
logo = parse_images(logo_dict)
if logo is not None:
publication.logo = logo
publication.follower_count = publication_dict["metadata"]["followerCount"]
publication.post_count = publication_dict["metadata"]["postCount"]
if "domain" in publication_dict:
publication.url = "http://" + publication_dict["domain"]
else:
publication.url = ROOT_URL + publication_dict["slug"]
publication.name = publication_dict["slug"]
return to_dict(publication)
def parse_post(payload):
# get the different parsing keys
post_detail_parsing_keys = ("payload", "references", "Post")
if post_detail_parsing_keys is None:
return
post_list_payload = payload
for key in post_detail_parsing_keys:
post_list_payload = post_list_payload.get(key)
def parse_post_dict(post_dict, post_id=None):
if post_id is None:
post_id = post_dict["id"]
post = Post(post_id)
unique_slug = post_dict["uniqueSlug"]
title = post_dict["title"]
post_date = post_dict["createdAt"]
publication_id = post_dict["approvedHomeCollectionId"]
url = ROOT_URL
ref_dict = payload["payload"]["references"]
if publication_id is not None and publication_id:
publication_dict = ref_dict["Collection"][publication_id]
# custom publication domain
if "domain" in publication_dict and publication_dict["domain"]:
url = "https://" + publication_dict["domain"]
else:
# simple publication
url += publication_dict["slug"]
else:
# personal post, no publication
creator_id = post_dict["creatorId"]
username = ref_dict["User"][creator_id]["username"]
url += "@{username}".format(username=username)
url += u"/{path}".format(path=unique_slug)
virtual_dict = post_dict["virtuals"]
recommend_count = virtual_dict["recommends"]
response_count = virtual_dict["responsesCreatedCount"]
read_time = virtual_dict["readingTime"]
word_count = virtual_dict["wordCount"]
image_count = virtual_dict["imageCount"]
preview_image = virtual_dict["previewImage"]
# post_tags = virtual_dict["tags"]
# post.post_tags = parse_tags(post_tags)
# post.unique_slug = unique_slug
post.title = title
post.post_date = post_date
post.url = url
post.recommend_count = recommend_count
post.response_count = response_count
post.read_time = read_time
post.word_count = word_count
post.image_count = image_count
image = parse_images(preview_image)
if image is not None:
post.preview_image = image
# print("{id}, {title}".format(id=post_id, title=title))
# print("{recommend}, {response}, {read}".format(
# recommend=recommend_count, response=response_count, read=read_time))
return to_dict(post)
post_list = []
# print(post_list_payload)
# payload -> references -> Post
if type(post_list_payload) is dict:
for post_id in post_list_payload.keys():
post_dict = post_list_payload.get(post_id)
post_list.append(parse_post_dict(post_dict, post_id))
# payload -> value
elif type(post_list_payload) is list:
for post_dict in post_list_payload:
post_list.append(parse_post_dict(post_dict))
return post_list
def parse_tags(tags_list_dict):
if tags_list_dict is not None and len(tags_list_dict) > 0:
tags_list = []
for tag_dict in tags_list_dict:
tag = Tag()
tag.unique_slug = tag_dict["slug"]
tag.name = tag_dict["name"]
tag.post_count = tag_dict["postCount"]
metadata_dict = tag_dict["metadata"]
if metadata_dict is not None:
tag.follower_count = metadata_dict["followerCount"]
tags_list.append(to_dict(tag))
return tags_list
def parse_images(image_dict):
if image_dict is not None:
image_id = image_dict["imageId"] if "imageId" in image_dict else image_dict["id"]
if image_id:
image = Image(image_id)
image.original_width = image_dict["originalWidth"]
image.original_height = image_dict["originalHeight"]
# This isn't working.
# image.url = u"https://cdn-images-1.medium.com/fit/t/{width}/{height}/{id}" \
# .format(width=image.original_width,
# height=image.original_height,
# id=image.image_id)
return to_dict(image)
else:
return None
def parse_post_detail(post_url, token):
print(post_url)
# driver = webdriver.Remote(desired_capabilities=DesiredCapabilities.CHROME)
# for json format, just return medium json response
# driver.get(post_url)
r = requests.get(post_url)
if r.ok:
# content_elements = driver.find_element_by_class_name("postArticle-content")
inner_html = BeautifulSoup(r.text, HTML_PARSER).find("div", {"class": "postArticle-content"})
content_tags = inner_html.find_all()
response = ""
for i in range(0, len(content_tags)):
tag = content_tags[i]
md = to_markdown(tag, token)
if md is not None and md and md is not 'None':
response += md + "\n"
print(response)
return response
def strip_space(text, trim_space=True):
text = re.sub(r'\s+', ' ', text)
if trim_space:
return text.strip()
else:
return text
def to_markdown(medium_tag, token):
text = strip_space(medium_tag.text)
if medium_tag.name == 'h3':
return '\n## {}'.format(text)
elif medium_tag.name == 'h4':
return '\n### {}'.format(text)
elif medium_tag.name == 'p': # text paragraph
# find style, link inside a paragraph
plain_text = ''
for child in medium_tag.children:
if child.name is None:
if len(strip_space(child.string)) > 0:
plain_text += strip_space(child.string)
else:
content = strip_space(child.text)
if child.name == 'strong':
plain_text += " \n**{0}**\n ".format(content)
elif child.name == 'em':
plain_text += " \n_{0}_\n ".format(content)
elif child.name == 'a':
plain_text += " \n[{0}]({1})\n ".format(content, child['href'])
elif child.name == 'br':
plain_text += "{} \n ".format(content)
elif child.name == 'code' or child.name == '':
plain_text += " \n`{0}`\n ".format(content)
return plain_text
elif medium_tag.name == 'figure': # image and comment
for child in medium_tag.children:
img_tag = child.find('img')
if img_tag is not None and img_tag.has_attr('src'):
x = IpfsHandler(img_tag['src'], token)
return '\n\n'.format(x.ipfs_url)
# Handle Tweets
iframe = child.find('iframe')
if iframe is not None:
iframe_url = 'https://medium.com' + iframe['src']
try:
r = requests.get(iframe_url)
# driver.get(iframe_url)
iframe_content = BeautifulSoup(r.text, HTML_PARSER).find('body')
# print(iframe_content)
if iframe_content.find('iframe'):
return None
if iframe_content.find('blockquote'):
return '\n{}\n'.format(iframe_content.find('blockquote'))
if iframe_content is not None:
return '\n{}\n'.format(iframe_content)
# if 'body' in frame_content):
# print(iframe_content.find('body'))
# return '\n{}\n'.format(iframe_content.find('body'))
# if iframe_content.find('iframe') is not None:
# return '\n{}\n'.format(iframe_content.find('iframe'))
except:
return None
elif medium_tag.name == 'blockquote': # quote
return '> {}\n'.format(strip_space(medium_tag.text))
elif medium_tag.name == 'ol' or medium_tag.name == 'ul':
return "\n"
elif medium_tag.name == 'li':
plain_text = ''
for child in medium_tag.children:
if child.name is None:
if len(strip_space(child.string)) > 0:
plain_text += strip_space(child.string)
else:
content = strip_space(child.text)
if child.name == 'strong':
plain_text += " **{0}** ".format(content)
elif child.name == 'em':
plain_text += " _{0}_ ".format(content)
elif child.name == 'a':
plain_text += " [{0}]({1}) ".format(content, child['href'])
elif child.name == 'code' or child.name == '':
plain_text += " `{0}` ".format(content)
return '\n * {0}'.format(plain_text)
elif medium_tag.name == 'pre': # code block (not inline code or embed code)
code_block = ''
code_tags = medium_tag.prettify().split('<br/>')
for i in range(len(code_tags)):
t = BeautifulSoup(code_tags[i], HTML_PARSER)
code = re.sub(r'\r\n(\s{10})', '', t.text).replace('\n', '')
code_block += '{}\n'.format(code)
# print(i, code)
return '\n```\n{}```\n\n'.format(code_block)
# elif medium_tag.name == 'hr':
# return '\n----\n'
# TODO: need more test and change to adopt to chrome driver
elif medium_tag.name == 'iframe':
# gist, video, github, link...etc.
iframe_url = ROOT_URL + medium_tag['src']
try:
r = requests.get(iframe_url)
# driver.get(iframe_url)
iframe_content = BeautifulSoup(r.text, HTML_PARSER).find('iframe')
if iframe_content is not None:
iframe_src = iframe_content['src']
try:
uq = unquote(iframe_src)
src_string = urlparse(uq)
src_string2 = src_string.query
rgx = re.search('(?<=src\=)(.*?[^?]*)', src_string2).group()
iframe_content['src'] = rgx
iframe_content['width'] = '512'
iframe_content['height'] = '300'
return '\n{}\n'.format(iframe_content)
except:
return None
else:
iframe_content = BeautifulSoup(r.text, HTML_PARSER).find('script')
try:
iframe_url = iframe_content['src']
except:
return None
r = requests.get(iframe_url)
if r.ok:
try:
raw_url = r.text.split('href=\\"')[1].split("\\")[0]
req = requests.get(raw_url)
if req.ok:
code_html = BeautifulSoup(req.content, HTML_PARSER)
return '\n```\n{}\n```\n\n'.format(code_html.prettify())
except:
return None
except (RuntimeError, requests.exceptions.MissingSchema):
pass
# print(e)
else:
return None