Subversion Repositories SmartDukaan

'''

Created on 14-May-2010

@author: gaurav

'''

from scrapy.spider import BaseSpider

from scrapy.selector import HtmlXPathSelector

from scrapy.http import Request

from demo.items import DemoItem

from scrapy.contrib.spidermiddleware import referer

from scrapy.http.headers import Headers

from scrapy.http.request.form import FormRequest

from scrapy.log import msg

from scrapy.http.response import Response

from datastore.DataCodeAccessor import *

from datastore.DataAccessor import *

from html2text.unescaping import *

class vendor_links(BaseSpider):

    def __init__(self):

        initialize_table()

        #UNIVERCELL_DOMAINNAME = "univercell"   

        UNIVERCELL_DOMAINNAME = get_code_word("UNIVERCELL_DOMAINNAME")

        self.domain_name = UNIVERCELL_DOMAINNAME 

        #UNIVERCELL_URL = "http://www.univercell.in/mobiles/populateStore.action"

        UNIVERCELL_URL = get_code_word("UNIVERCELL_URL")

        self.start_urls.append(UNIVERCELL_URL)

    def start_requests(self):

        #adding entry for the supplier i.e its name and site

        #UNIVERCELL_HOMEPAGE = "http://www.univercell.in"

        UNIVERCELL_HOMEPAGE = get_code_word("UNIVERCELL_HOMEPAGE")

        da = DataHelper()

        da.add_supplier(self.domain_name, UNIVERCELL_HOMEPAGE)

        listreq = []

        #for each request a referer has to be set

        #UNIVERCELL_REFERER = "www.google.com/search"

        UNIVERCELL_REFERER = get_code_word("UNIVERCELL_REFERER")

        for url1 in self.start_urls:

            request = Request(url = str(url1), callback=self.parse)

            request.headers.setdefault("Referer", UNIVERCELL_REFERER)

            listreq.append(request)

        return listreq

    def parse(self, response):

        #url1 needed to get complete urls for phones

        #UNIVERCELL_URL1 = "http://www.univercell.in"

        UNIVERCELL_URL1 = get_code_word("UNIVERCELL_URL1")

        hxs = HtmlXPathSelector(response)

        #UNIVERCELL_XPATH1 = '//div[@id="mobilesTab"]/table/tr[1]/td/table/tr'

        UNIVERCELL_XPATH1 = get_code_word("UNIVERCELL_XPATH1")

        vendor_info = hxs.select(UNIVERCELL_XPATH1)

        items = []

        for i in vendor_info:

            item = {}

            #UNIVERCELL_XPATH2 = './/a/text()'

            UNIVERCELL_XPATH2 = get_code_word("UNIVERCELL_XPATH2")

            #UNIVERCELL_XPATH3 = './/a/@href' 

            UNIVERCELL_XPATH3 = get_code_word("UNIVERCELL_XPATH3")

            item['name'] = i.select(UNIVERCELL_XPATH2)[0].extract()

            temp = i.select(UNIVERCELL_XPATH3)[0].extract()

            #site having data has url containing repopulate instead of populate

            #UNIVERCELL_VAR1 = ";"

            UNIVERCELL_VAR1 = get_code_word("UNIVERCELL_VAR1")

            #UNIVERCELL_VAR2 = "?"

            UNIVERCELL_VAR2 = get_code_word("UNIVERCELL_VAR2")

            #UNIVERCELL_VAR3 = "populate"

            UNIVERCELL_VAR3 = get_code_word("UNIVERCELL_VAR3")

            #UNIVERCELL_VAR4 = "rePopulate"

            UNIVERCELL_VAR4 = get_code_word("UNIVERCELL_VAR4")

            a = str(temp).find(UNIVERCELL_VAR1)

            b = str(temp).find(UNIVERCELL_VAR2)

            temp1 = str(temp)[a:b]

            temp2 = str(temp).replace(temp1,"")

            item['site'] =  str(temp2).replace(UNIVERCELL_VAR3,UNIVERCELL_VAR4)

            items.append(item)

        da = DataHelper()

        for item in items:

            str2 = UNIVERCELL_URL1 + str(item['site'])

            da.add_univervendor( unescape(item['name'].strip()), unescape(str2))

SPIDER = vendor_links()