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/google
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#!/usr/bin/python
#
# Copyright (C) 2008 Henri Hakkinen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys
import termios, fcntl, struct
import webbrowser
import HTMLParser
from urllib import quote_plus
from httplib import HTTPConnection
from getopt import getopt, GetoptError
# Global variables
columns = None # Terminal window size.
start = None # The first result to display (option -s)
num = None # Number of results to display (option -n)
lang = None # Language to search for (option -l)
openUrl = False # If True, opens the first URL in browser (option -j)
colorize = False # If True, colorizes the output (option -C)
# Classes
class GoogleParser(HTMLParser.HTMLParser):
def __init__(self):
HTMLParser.HTMLParser.__init__(self)
self.handle_starttag = self.main_start
self.handle_data = self.main_data
self.handle_endtag = self.main_end
def main_start(self, tag, attrs):
if tag == "li" and len(attrs) > 0 and attrs[0] == ("class", "g"):
self.title = ""
self.url = ""
self.text = ""
self.handle_starttag = self.li_start
self.handle_data = self.li_data
self.handle_endtag = self.li_end
def main_data(self, data):
pass
def main_end(self, tag):
pass
# <li class="g"> ... </li>
def li_start(self, tag, attrs):
if tag == "h3":
self.handle_starttag = self.h3_start
self.handle_data = self.h3_data
self.handle_endtag = self.h3_end
elif tag == "div":
self.handle_starttag = self.div_start
self.handle_data = self.div_data
self.handle_endtag = self.div_end
def li_data(self, data):
pass
def li_end(self, tag):
if tag == "div":
print_entry(self.title, self.url, self.text)
self.handle_starttag = self.main_start
self.handle_data = self.main_data
self.handle_endtag = self.main_end
# <h3> ... </h3>
def h3_start(self, tag, attrs):
if tag == "a":
self.url = attrs[0][1]
def h3_data(self, data):
self.title += data
def h3_end(self, tag):
if tag == "h3":
self.handle_starttag = self.li_start
self.handle_data = self.li_data
self.handle_endtag = self.li_end
# <div> ... </div>
def div_start(self, tag, start):
if tag == "br":
self.handle_starttag = self.li_start
self.handle_data = self.li_data
self.handle_endtag = self.li_end
def div_data(self, data):
self.text += data
def div_end(self, tag):
pass
# Functions
def print_entry(title, url, text):
# Open the URL in a web browser if option -j was specified.
if openUrl:
webbrowser.open(url)
sys.exit(0)
# Print the title and the URL.
if colorize:
print "\x1B[96m* \x1B[92m%s\n\x1B[93m%s\x1B[39m" % (title, url)
else:
print "* %s\n%s" % (title, url)
# Print the text with truncating.
col = 0
for w in text.split():
if (col + len(w) + 1) > columns:
col = 0
print
print w,
col += len(w) + 1
print
print
def usage():
print "Usage: google [OPTIONS] KEYWORDS..."
print "Performs a Google search and prints the results to stdout.\n"
print "Options"
print " -s N start at the Nth result"
print " -n N show N results"
print " -l LANG display in language LANG, such as fi for Finnish"
print " -C enable color output"
print " -j open the first result in a web browser\n"
print "Copyright (C) 2008 Henri Hakkinen."
print "Report bugs to <[email protected]>."
sys.exit(1)
########### Program Main
# Process command line options.
optlist = None
keywords = None
if len(sys.argv) < 2:
usage()
try:
optlist, keywords = getopt(sys.argv[1:], "s:n:l:Cj")
for opt in optlist:
if opt[0] == "-s":
# Option -s N
if not opt[1].isdigit():
print "google: option -s needs an integer"
sys.exit(1)
start = opt[1]
elif opt[0] == "-n":
# Option -n N
if not opt[1].isdigit():
print "google: option -n needs an integer"
sys.exit(1)
num = opt[1]
elif opt[0] == "-l":
# Option -l LANG
lang = opt[1]
elif opt[0] == "-C":
# Option -C
colorize = True
elif opt[0] == "-j":
# Option -j
openUrl = True
if len(keywords) < 1:
usage()
except GetoptError, e:
print "google:", e
sys.exit(1)
# Construct the query URL.
url = "/search?"
if start != None:
url += "start=" + start + "&"
if num != None:
url += "num=" + num + "&"
if lang != None:
url += "hl=" + lang + "&"
url += "q=" + quote_plus(keywords[0])
for kw in keywords[1:]:
url += "+" + quote_plus(kw)
if not openUrl:
print "\nhttp://www.google.com%s\n" % url
# Get the terminal window size.
winsz = fcntl.ioctl(sys.stdout, termios.TIOCGWINSZ, "1234")
columns = struct.unpack("HH", winsz)[1]
# Connect to Google and request the result page.
conn = HTTPConnection("www.google.com")
conn.request("GET", url)
resp = conn.getresponse()
if resp.status != 200:
# The server responded with an error.
print "Server responded with an error:", str(resp.status)
sys.exit(1)
# Parse the HTML document and print the results.
parser = GoogleParser()
parser.feed(resp.read())
conn.close()
# vim:set sts=4 sw=4 et: