From af84b5d968dcceaf74dc76b9ee720b384d8277e5 Mon Sep 17 00:00:00 2001
From: Dnomd343 <i@343.re>
Date: Sun, 16 Oct 2022 01:07:41 +0800
Subject: [PATCH] feat: fetch script for `ixsw.la`

---
 src/ixsw.la/fetch.py  | 53 +++++++++++++++++++++++++++++++++++++++++++
 src/ixsw.la/logger.py | 47 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 100 insertions(+)
 create mode 100644 src/ixsw.la/fetch.py
 create mode 100644 src/ixsw.la/logger.py

diff --git a/src/ixsw.la/fetch.py b/src/ixsw.la/fetch.py
new file mode 100644
index 0000000..0c235ac
--- /dev/null
+++ b/src/ixsw.la/fetch.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+Download raw html content as `.html` files.
+
+    USAGE: python3 fetch.py [CATALOG] [OUTPUT_DIR]
+"""
+
+import os
+import sys
+import json
+import time
+import requests
+from logger import logger
+
+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(fileUrl: str, fileName: str) -> bool:  # save html content
+    try:
+        logger.debug('Http request `%s` -> `%s`' % (fileUrl, fileName))
+        request = requests.get(fileUrl, timeout = 30,  # timeout -> 30s
+            headers = {
+                'user-agent': userAgent,  # with fake user-agent
+            }
+        )
+        if request.status_code not in range(200, 300):  # http status code 2xx
+            logger.warning('Http request failed -> `%s`' % fileUrl)
+            return False
+        logger.debug('Http request success -> `%s`' % fileUrl)
+        with open(fileName, 'wb') as fileObj:  # save html content
+            fileObj.write(request.content)
+        logger.debug('File save success -> `%s`' % fileName)
+    except:
+        return False
+    return True
+
+
+catalog = json.loads(open(sys.argv[1]).read())  # load catalog
+
+for _, chapterId in catalog.items():  # traverse all chapters
+    pageUrl = 'https://www.ixsw.la/ks82668/%s.html' % chapterId
+    pageFile = os.path.join(sys.argv[2], '%s.html' % chapterId)
+    if httpRequest(pageUrl, pageFile):  # save html content
+        logger.info('Page request success -> %s' % pageUrl)
+    else:
+        logger.error('Page request failed -> %s' % pageUrl)
+    time.sleep(1)  # avoid being blocked by the server
diff --git a/src/ixsw.la/logger.py b/src/ixsw.la/logger.py
new file mode 100644
index 0000000..36cfaf8
--- /dev/null
+++ b/src/ixsw.la/logger.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+Logger module:
+  INFO level -> stderr
+  DEBUG level -> runtime.log
+"""
+
+import sys
+import logging
+import colorlog
+
+logColor = {  # log color
+    'DEBUG': 'white',
+    'INFO': 'green',
+    'WARNING': 'yellow',
+    'ERROR': 'red',
+    'CRITICAL': 'bold_red',
+}
+
+dateFormat = '%Y-%m-%d %H:%M:%S'
+timeFormat = '%(asctime)s.%(msecs)03d'
+logFormat = '[%(levelname)s] %(message)s (%(module)s.%(funcName)s:%(lineno)d)'
+
+# load fileHandler -> log file
+fileHandler = logging.FileHandler('runtime.log', encoding = 'utf-8')
+fileHandler.setFormatter(logging.Formatter(
+    '[' + timeFormat + '] ' + logFormat,
+    datefmt = dateFormat
+))
+fileHandler.setLevel(logging.DEBUG)  # debug level for log file
+
+# load stdHandler -> stderr
+stdHandler = colorlog.StreamHandler()
+stdHandler.setFormatter(colorlog.ColoredFormatter(
+    '%(light_black)s' + timeFormat + '%(log_color)s ' + logFormat,
+    datefmt = dateFormat,
+    log_colors = logColor,
+    stream = sys.stderr
+))
+stdHandler.setLevel(logging.INFO)  # info level for stderr
+
+logger = logging.getLogger()
+logger.addHandler(stdHandler)
+logger.addHandler(fileHandler)
+logger.setLevel(logging.DEBUG)  # set log level in handler