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SearchBot.py
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SearchBot.py
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import urllib.request as request
import urllib.parse as parse
from urllib.error import URLError
import time
from email.mime.text import MIMEText
import smtplib
class SearchBot:
ResultOnConsole = True
MAXTRY = 3600*24*30*2
def __init__(self,CourseArgs,IncludeList = None, ExclueList = None, RstrList = None, MailInfo: ('sender','Password','receiver') = None,
gap = 1):
self._CheckRstr = False
self._CheckIn = False
self._CheckEx = False
self._args = CourseArgs
assert MailInfo==None or len(MailInfo) == 3
self._Mail = MailInfo
self._gap = gap
if RstrList != None:
self._CheckRstr = True
self._Rstr = RstrList
if IncludeList != None:
self._CheckIn = True
self._in = IncludeList
elif ExclueList != None:
self._CheckEx = True
self._ex = ExclueList
def _request(self):
para = parse.urlencode(self._args)
para = para.encode("utf8")
htRes = request.Request("https://www.reg.uci.edu/perl/WebSoc", data=para)
txtRes = request.urlopen(htRes)
txtRes = txtRes.read().decode("utf8")
return txtRes
def _encodeMail(self,subject,context):
res = MIMEText(context)
res["Subject"] = subject
res["From"] = self._Mail[0]
res["To"] = self._Mail[2]
return res
def _sendMail(self,msg):
ser = smtplib.SMTP("smtp.gmail.com")
ser.starttls()
ser.login(self._Mail[0], self._Mail[1])
ser.send_message(msg)
ser.quit()
def _RstrCheck(self,line):
Rstr = line.split('</td>')[13][len('<td nowrap="nowrap">'):]
if 'and' in Rstr:
Rstr = Rstr.split(' and ')
for i in Rstr:
if i in self._Rstr:
return False
return True
def _analyse(self,msg):
msg = msg.split('\n')
courses = []
for line in msg:
if line.lstrip().startswith('<tr valign="top">') or line.lstrip().startswith('<tr valign="top" bgcolor="#FFFFCC">'):
courses.append(line)
success = []
if self._CheckIn:
for line in courses:
start = line.index('nowrap="nowrap">')
courseCode = line[start + len('nowrap="nowrap">'):start + len('nowrap="nowrap">') + 5]
if courseCode in self._in:
if 'OPEN' in line:
if not self._CheckRstr or self._RstrCheck(line):
success.append(courseCode)
else:
for line in courses:
start = line.index('nowrap="nowrap">')
courseCode = line[start + len('nowrap="nowrap">'):start + len('nowrap="nowrap">') + 5]
if courseCode not in self._ex:
if 'OPEN' in line:
if not self._CheckRstr or self._RstrCheck(line):
success.append(courseCode)
return success
def run(self):
sendnote = True if self._Mail != None else False
lastsent = 0
count = 1
while True:
if self.ResultOnConsole:
print("Trying to find course for {} time(s)...".format(count))
while True:
try:
webMsg = self._request()
except URLError:
if self.ResultOnConsole:
print("Connection Error, Reconnecting...")
time.sleep(1)
else:
break
Res = self._analyse(webMsg)
if self.ResultOnConsole:
for course in Res:
print('{} is OPEN!!'.format(course))
if len(Res) != 0 and sendnote:
if count - lastsent >= 10 * 50 or lastsent == 0:
lastsent = count
msgList = ['{} is OPEN!!'.format(i) for i in Res]
msg = self._encodeMail("Your course is available!!",'\n'.join(msgList))
self._sendMail(msg)
count += 1
if count>= self.MAXTRY:
if self.ResultOnConsole:
print('MAXTRY, BOT STOP')
break
time.sleep(1)