From ad1bc34595afe95706be99c088f93440a555de0c Mon Sep 17 00:00:00 2001
From: Dnomd343 <i@343.re>
Date: Sat, 15 Oct 2022 15:31:30 +0800
Subject: [PATCH] feat: catalog script for `wxsy.net`

---
 src/wxsy.net/catalog.py | 46 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 src/wxsy.net/catalog.py

diff --git a/src/wxsy.net/catalog.py b/src/wxsy.net/catalog.py
new file mode 100644
index 0000000..5f5d150
--- /dev/null
+++ b/src/wxsy.net/catalog.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+Fetch catalog and output as JSON format.
+
+    USAGE: python3 catalog.py
+"""
+
+import re
+import json
+import requests
+from bs4 import BeautifulSoup
+
+userAgent = (  # default user agent
+    'Mozilla/5.0 (Windows NT 10.0; Win64; x64) '
+    'AppleWebKit/537.36 (KHTML, like Gecko) '
+    'Chrome/106.0.0.0 Safari/537.36 Edg/106.0.1370.47'
+)
+
+
+def httpRequest(url: str) -> str:  # fetch raw html content
+    request = requests.get(url, headers = {
+        'user-agent': userAgent,  # with fake user-agent
+        'accept-encoding': 'gzip, deflate',  # allow content compress
+    })
+    if request.status_code not in range(200, 300):  # http status code 2xx
+        raise RuntimeError('Http request failed')
+    return request.text
+
+
+def extractCatalog(rawHtml: str) -> dict:  # extract catalog from html content
+    catalog = {}
+    html = BeautifulSoup(rawHtml, 'lxml')
+    detail = html.select('div[class="pt-chapter-cont-detail full"]')[0]
+    for item in detail.select('a'):
+        catalog[item.attrs['title']] = re.search(r'/novel/57104/read_(\d+).html', item.attrs['href'])[1]
+    catalog = sorted(catalog.items(), key = lambda d: int(
+        re.search(r'^第(\d+)章', d[0])[1]  # sort by chapter
+    ))
+    return {x[0]: x[1] for x in catalog}  # formatted output
+
+
+print(json.dumps(
+    extractCatalog(httpRequest('https://www.wxsy.net/novel/57104/'))
+))