-
Notifications
You must be signed in to change notification settings - Fork 0
/
moodle-crawler.py
242 lines (206 loc) · 7.96 KB
/
moodle-crawler.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
# -*- coding: utf-8 -*-
import sys
reload(sys)
sys.setdefaultencoding('utf8')
import mechanize #install
from bs4 import Tag, NavigableString, BeautifulSoup #install
import urllib2 #install
import cookielib #install
import os, errno
import re #install
import pdfcrowd #install
moodle_login_url = "https://moodle.pucrs.br/login/index.php"
moodle_login_redirect_page = "https://moodle.pucrs.br/my/"
# If you want to save 'prints' from moodle do this:
#1) Create a free account https://pdfcrowd.com
#2) Initiate a trial(no information is required) of API v2 trial activated
#3) Get your a API key
#4) Change pdf_ variables below
save_pdf_enabled = 0
pdf_api_username = ''
pdf_api_token = ''
if save_pdf_enabled == 1:
try:
client = pdfcrowd.HtmlToPdfClient(pdf_api_username, pdf_api_token)
except:
print 'PDF API not working'
raise
#https://stackoverflow.com/questions/20039643/how-to-scrape-a-website-that-requires-login-first-with-python
# wget --quiet --save-cookies cookiejar --keep-session-cookies --post-data "action=login&login_nick=USERNAME&login_pwd=PASSWORD" -O outfile.htm http://domain.com/index.php
def save_pdf(html_string,filename):
if save_pdf_enabled == 0:
return
try:
client.convertStringToFile(str(html_string),filename)
except pdfcrowd.Error as why:
# report the error
sys.stderr.write('Pdfcrowd Error: {}\n'.format(why))
raise
def init(moodle_username,moodle_password):
# cj = cookielib.CookieJar()
br = mechanize.Browser()
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
#Browser Options
br.set_handle_equiv(True)
# br.set_handle_gzip(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)
br.addheaders = [('User-agent', 'Chrome')]
#Open PUCRS Moodle
br.open(moodle_login_url)
br.select_form(nr=0)
br['username'] = moodle_username
br['password'] = moodle_password
br.submit()
if not br.geturl() == moodle_login_redirect_page:
print 'Username and/or password invalid'
return 0
else:
print 'Logged in'
# Logged in
#Avoid Redirect, easier to parse
# br.set_handle_refresh(False)
# if save_pdf_enabled == 1:
# try:
# client = pdfcrowd.HtmlToPdfClient(pdf_api_username, pdf_api_token)
# except:
# print 'PDF API not working'
# return 0
br.select_form(nr=0)
session_key = br['sesskey']
print 'Session Key is %s',session_key
soup = BeautifulSoup(br.response().read(),'lxml')
# print "\n\n\n\n"
if not os.path.exists('./output'):
os.makedirs('./output')
soup.findAll('script')[0].extract()
save_pdf(soup,'./output/my.pdf')
soup = soup.find(role='main')
soup = soup.findAll("div",{"class":{"coursebox"}})
for course in soup:
# course_name = course.find("h3",{"class":{"name"}})
course_info = course.find('div',{'class':{'info'}})
course_summary = course.find('div',{'class':{'summary'}})
course_name = course_info.h3.a
course_teachers = course_info.ul
course_link = course_name['href']
course_title = course_name.string
# print 'Curso: ',course_title
# print 'Link: ',course_link
course_data = "Curso: "+course_title+"\n"+"Link: "+course_link+"\n"
for teacher in course_teachers.findAll('li'):
course_data=course_data+'Professor: '+teacher.a.string+' [link: '+teacher.a['href']+"]\n"
# print 'Professor: ',teacher.a.string,'[link: '+teacher.a['href']
# print 'Sumario: ',course_summary.string
try:
course_data=course_data+'Sumario: '+course_summary.string+"\n"
except:
pass
#Access this course
br.open(course_link)
soup_course = BeautifulSoup(br.response().read(),'lxml')
soup_course.findAll('script')[0].extract()
course_content = soup_course.find('div',{'class':{'course-content'}})
# course_topics = course_content.find('ul',{'class':{'topics'}}).findAll('li')
course_topics = course_content.ul
course_dir = "./"+'output/'+course_title;
directory = os.path.dirname(course_dir)
# Create course folder if it doesn't exist
print 'Get ',directory
if not os.path.exists(directory):
os.makedirs(directory)
f = open(directory+"/"+"info.txt","w+")
f.write(course_data)
f.close()
save_pdf(soup_course,"./"+'output/'+str(course_title)+'.pdf')
no_name_counter = 0
for ct in course_topics:
# print "\n{"
try:
ct_topic = ct['aria-label']
except:
ct_topic = 'no_name_course_'+str(no_name_counter)
no_name_counter = no_name_counter + 1
ct_directory = directory+'/'+ct_topic
if not os.path.exists(ct_directory):
os.makedirs(ct_directory)
try:
course_topic_content = ct.find('div',{'class':{'content'}})
course_topic_summary = ct.find('div',{'class':{'summary'}})
except:
continue
# Still need to parse this
urlPack = ''
pagePack = ''
try:
for lk in course_topic_summary.findAll('a'):
lk_link = lk['href']
lk_filename = re.sub(r'.*/','',lk_link)
if '.htm' not in lk_link and '.html' not in lk_filename and lk_filename != '':
try:
# if not os.path.exists(ct_directory+'/'+lk_filename):
br.retrieve(lk_link,ct_directory+'/'+lk_filename)
except:
urlPack = urlPack + str(lk_link)+'\n'
else:
urlPack = urlPack + str(lk_link)+'\n'
except:
continue
try:
activities = course_topic_content.ul
except:
continue
try:
for activity in activities:
#['activity', 'label', 'modtype_label', '']
#['activity', 'forum', 'modtype_forum', '']
#['activity', 'assign', 'modtype_assign', '']
#['activity', 'url', 'modtype_url', '']
#['activity', 'page', 'modtype_page', '']
if activity.get('class') == ['activity', 'resource', 'modtype_resource', '']:
activity_instance = activity.find('div',{'class':{'activityinstance'}})
activity_link = activity_instance.a['onclick']
activity_link = re.sub(r'((window\.open\(\'))|(&)(.)*|((&redirect)(.)*)','',activity_link)
# print 'RedirectLink: ',activity_link
br.open(activity_link)
soup_redirect = BeautifulSoup(br.response().read(),'lxml')
true_activity_link = soup_redirect.find('div',{'class':{'resourceworkaround'}}).a['href']
true_activity_filename = re.sub(r'.*/','',true_activity_link)
# print 'TrueLink: ',true_activity_filename,":",true_activity_link
br.retrieve(true_activity_link,ct_directory+'/'+true_activity_filename)
elif activity.get('class') == ['activity', 'url', 'modtype_url', '']:
activity_instance = activity.find('div',{'class':{'activityinstance'}})
activity_name = activity_instance.find('span',{'class':{'instancename'}}).text
# print 'UrlActivityName: ',activity_name
activity_link = activity_instance.a['href']
br.open(activity_link)
true_activity_link = ''
try:
soup_redirect = BeautifulSoup(br.response().read(),'lxml')
true_activity_link = soup_redirect.find('div',{'class':{'urlworkaround'}}).a['href']
except: #Happens when there's a redirect
true_activity_link = br.geturl()
urlPack = urlPack + str(activity_name)+': ['+str(true_activity_link)+']'+'\n'
elif activity.get('class') == ['activity', 'page', 'modtype_page', '']:
activity_instance = activity.find('div',{'class':{'activityinstance'}})
activity_link = activity_instance.a['onclick']
activity_link = re.sub(r'((window\.open\(\'))|(&)(.)*|((&redirect)(.)*)','',activity_link)
activity_name = activity_instance.find('span',{'class':{'instancename'}}).text
br.open(activity_link)
soup_redirect = BeautifulSoup(br.response().read(),'lxml')
soup_redirect.findAll('script')[0].extract()
save_pdf(soup_redirect,ct_directory+'/'+true_activity_filename+'.pdf')
# options = {"cookie": cj}
# config = pdfkit.configuration(wkhtmltopdf='./wkhtmltopdf')
# pdfkit.from_url(activity_link, "./out.pdf", options=options, configuration=config)
else:
# print ''
pass
except:
pass
print 'Done!'
print 'Moodle downloaded to ./output/'
init(sys.argv[1],sys.argv[2])