Openid is slowly becoming the standard for user authentication .Wordpress went open first ,soon blogger has followed suit .
For those who don’t know what openid is ,
“OpenID eliminates the need for multiple usernames across different websites, simplifying your online experience.You get to choose the OpenID Provider that best meets your needs and most importantly that you trust. At the same time, your OpenID can stay with you, no matter which Provider you move to. And best of all, the OpenID technology is not proprietary and is completely free.”
Its very easy ,you only authenticate once on your openid server and then work acoss all platforms that support openid .
I use phpMyID to run the openid server ,its easy just two files to edit and you should be running .
Now just use it !
i was planning to put this one last week when i released meninblue but thanks to exam i just got time now .
It was basically a bot that would give you the latest commentary of india’s cricket matches on your twitter and it was written in python and using python-twitter .
First the libraries you will need
GNU/Linux or its variants preferred, python,urllib,urllib2,python-twitter and sgmlib and also minidom for xml parsing .
Twitter provides you with a very easy api to work with .posting a message is just two lines.
Here is how i have tried to go about my task .
Choose the main page where you get the list of all ongoing matches and i chose wap version of cricinfo since its easier to parse with minimal html and also their html is a little complex to parse with so many iframes .
i use the sgmllib to parse the html ,the code snippet is below
def get_contents(url):
import urllib, sgmllib
f=urllib.urlopen("http://ci.plusmo.com/cricket/wap")
s = f.read()
print "Read"
myparser = MyParser()
myparser.parse(s)
a=myparser.get_hyperlinks()
b=myparser.get_descriptions()
wget_command = "wget -p --output-document=index.html "+url
system(wget_command);
print wget_command
f=open("$CWD/index.html") #change the $CWD to what dir u have
filer=f.read()
strnew= filer.replace(' ',' ')
strnew1=strnew.replace(' ','')
findex=strnew1.find('<div class="dat">')
findex1=strnew1.find('</div>',findex+1,UP_LIMIT)
newindex=strnew1.find('</div>',findex1+1,UP_LIMIT_1)
newindex2=strnew1.find('</div>',newindex+1,NEW_LIMIT)
finalmesg=strnew1[findex:newindex2]
s=Stripper()
s.feed(finalmesg)
score=s.gettext()
score=score.replace(’<’,”)
score=score.replace(’>’,”)
score=score.replace(’div’,”)
print score
print “SCRE OBTAINED”
check(score)
And now the parser class
class MyParser(sgmllib.SGMLParser):
def parse(self, s):
self.feed(s)
self.close()
def __init__(self, verbose=0):
sgmllib.SGMLParser.__init__(self, verbose)
self.hyperlinks = []
self.descriptions = []
self.inside_a_element = 0
def start_a(self, attributes):
for name, value in attributes:
if name == "href":
self.hyperlinks.append(value)
self.inside_a_element = 1
def end_a(self):
self.inside_a_element = 0
def handle_data(self, data):
if self.inside_a_element:
self.descriptions.append(data)
def get_hyperlinks(self):
return self.hyperlinks
def get_descriptions(self):
for i in range(len(self.descriptions)):
str=self.descriptions[i]
if str.find(”India”) != -1:
index=i
return self.descriptions
The next stage is to strip all html and get the full content which we can post :-)
class Stripper(sgmllib.SGMLParser):
def __init__(self):
self.data = []
sgmllib.SGMLParser.__init__(self)
def unknown_starttag(self, tag, attrib):
self.data.append(” “)
def unknown_endtag(self, tag):
self.data.append(” “)
def handle_data(self, data):
self.data.append(data)
def gettext(self):
text = string.join(self.data, “”)
return string.join(string.split(text))
And see if the last posted message was the same as the message you have ,if yes then abort posting and wait for a update to be done ( mostly for script when its running while no match is on or after play)
def check(score):
settings={
"username":"YOURUSERNAME",
"statusdelimeter1":"<p class=\"entry-title entry-content\">",
"statusdelimeter2":"</p>"
}
url1="http://twitter.com/"+settings["username"]
message=”"
print url1
statusdelimeter1=settings["statusdelimeter1"]
statusdelimeter2=settings["statusdelimeter2"]
try:
print “In to the message checkloop”
instream=urllib.urlopen(url1)
for line in instream:
if statusdelimeter1 in line:
message=line[
line.index(statusdelimeter1)+len(statusdelimeter1):line.index(statusdelimeter2)
]
print message
print score
if string.lower(message)==string.lower(score):
print "No change in Score ,May be break or match just got over"
else:
if len(score)>140:
print "LEN Greater than 140,so truncating"
newscore=''
newscore=score[:140]
print newscore
twitter(newscore)
else:
twitter(score)
except IOError, e:
raise "Could not connect."
And finally when you have the message to be sent ,just use a few lines of twitter library and its done !
def twitter(score):
import sys,os,string
sys.path.append('$CWD/twitter/')
sys.path.append('$CWDsimplejson/')
import twitter
api=twitter.Api(username='YOUR_USERNAME',password='YOURPASS')
try:
status=api.PostUpdate(score)
print "POST SUCCESSFULL"
except IOError,e:
raise"Could not Post"
Thats all the code is about :-)
check out 2s birthday update bot :-)
UPDATE: The feed and scores were taken from Plusmo services .
