You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
stud.ip-crawler/src/crawler.py

88 lines
2.9 KiB

import os
import logging as log
from studip import Studip
class Crawler:
def __init__(self, studip):
self.studip = studip
def download_folder(self, folder):
"""Download all documents in a folder.
Parameters:
folder(string): id of the folder to download
"""
docs = self.studip.get_docs(folder)
for doc in docs:
log.info('found doc ' + doc)
self.studip.download(doc)
def download_folder_rec(self, folder, base_dir):
"""Download all documents in a folder and its subfolders.
This keeps the folder structure.
Parameters:
folder(string): id of the folder to download
base_dir(string): directory where to put the download
"""
log.info('crawling folder ' + folder)
self.create_dir(base_dir)
self.download_folder(folder)
subdirs = self.studip.get_subdirs(folder)
os.chdir(base_dir)
for subdir in subdirs:
subdir_name = subdirs[subdir].replace('/', '-')
subdir_path = os.path.join(base_dir, subdir_name)
log.debug(subdir_path)
self.create_dir(subdir_path)
os.chdir(subdir_path)
self.download_folder_rec(subdir, subdir_path)
log.info('finished crawling folder ' + folder)
def download_course(self, course, base_dir):
"""Download all documents in course.
This keeps the folder structure.
Parameters:
course(string): id of the course to download
base_dir(string): directory where to put the download
"""
log.info('crawling course ' + course)
self.create_dir(base_dir)
os.chdir(base_dir)
root = self.studip.get_top_folder(course)
self.download_folder_rec(root, base_dir)
log.info('finished crawling course ' + course)
def download_curr_courses(self, base_dir):
"""Download all documents of all current courses.
This keeps the folder structure.
Parameters:
base_dir(string): directory where to put the download
"""
self.create_dir(base_dir)
curr_courses = self.studip.get_curr_courses(
self.studip.get_uid(), self.studip.get_curr_semester())
log.info('crawling all current courses')
os.chdir(base_dir)
for course in curr_courses:
log.debug('course is ' + curr_courses[course])
course_name = curr_courses[course].replace('/', '-')
path = os.path.join(base_dir, course_name)
self.download_course(course, path)
log.info('finished crawling all current courses')
def create_dir(self, dir):
"""Creates a dir if it doesnt exist already.
Parameters:
dir(string): directory path to create
"""
if not os.path.exists(dir):
log.info('creating folder ' + dir)
os.mkdir(dir)