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path: root/src/scrape_lexicanum.py
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from bs4 import BeautifulSoup
from markdownify import markdownify
from requests.exceptions import HTTPError

import requests

class WikiError(Exception):
    pass

def fix_link(config, node, field):
    node[field] = node[field].replace("/wiki", config["site"] + "/wiki")
    node[field] = node[field].replace("/mediawiki", config["site"] + "/mediawiki")

def get_search_response(config, query):
    try:
        response = requests.get(config['site'] + '/mediawiki/api.php?action=opensearch&format=json&formatversion=2&search=' + query + '&namespace=0&limit=6&suggest=true', timeout=7)
    except requests.exceptions.Timeout:
        raise WikiError("Request timed out.")
    except requests.exceptions.RequestException as e:
        print(f"Failed to complete request: {e}")
        raise WikiError("Error with wiki request.")

    try:
        response.raise_for_status()
    except HTTPError as e:
        print(f"HTTP error occured: {e}")
        raise WikiError("Bad HTTP response.")

    data = response.json()

    if not data[3]:
        raise WikiError("No such wiki entry found.")

    return data[3]

def get_page_content(config, page_name):
    try:
        response = requests.get(page_name, timeout=7)
    except requests.exceptions.Timeout:
        raise WikiError("Request timed out.")
    except requests.exceptions.RequestException as e:
        print(f"Failed to complete request: {e}")
        raise WikiError("Error with wiki request.")

    try:
        response.raise_for_status()
    except HTTPError as e:
        print(f"HTTP error occured: {e}")
        raise WikiError("Bad HTTP response.")

    soup = BeautifulSoup(response.content, "html.parser")
    
    parser_output = soup.find(id="mw-content-text").contents[0]

    for unwanted in parser_output.select("div.portal"):
        unwanted.decompose()
    for unwanted in parser_output.select("table.nottemplate"):
        unwanted.decompose()
    for unwanted in parser_output.select("table.Anpassen"):
        unwanted.decompose()

    image = parser_output.find("a.image")
    image_link = None
    if image:
        if image.contents[0]:
            fix_link(config, image.contents[0], "src")
            image_link = image.contents[0]["src"]

    for unwanted in parser_output.select("div.quotebox"):
        unwanted.decompose()
    for unwanted in parser_output.select("p > br"):
        unwanted.parent.decompose()
    for unwanted in parser_output.select("table"):
        unwanted.decompose()

    content = parser_output.find("p")
    for a in content.findAll("a"):
        fix_link(config, a, "href")

    header_md = markdownify(str(soup.find(id="firstHeading").contents[0]))
    content_md = markdownify(str(content))

    return header_md, content_md, image_link