Subversion Repositories SmartDukaan

'''

Created on 28-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 time import *

from datastore.DataCodeAccessor import *

from datastore.DataAccessor import *

import urllib

from html2text.unescaping import *

class naaptol_price2(BaseSpider):

    def __init__(self):

       initialize_table()

       #NAAPTOL_DOMAINNAME2 = "naaptol2"   

       NAAPTOL_DOMAINNAME2 = get_code_word("NAAPTOL_DOMAINNAME2")

       self.domain_name = NAAPTOL_DOMAINNAME2 

       # get urls from the database and append them in the list for crawling

       da = DataHelper()

       for pitem in da.get_allmorenaaptolurls():

            self.start_urls.append(pitem.url.strip())

    def start_requests(self):

        #for each request a referer has to be set

        listreq = []

        #NAAPTOL_REFERER = "http://www.google.com"

        NAAPTOL_REFERER = get_code_word("NAAPTOL_REFERER")

        for url1 in self.start_urls:

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

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

            listreq.append(request)

        return listreq

    def parse(self, response): 

        da = DataHelper()

        #NAAPTOL_REMOVELIST = ["Rs.",","]

        #list separated by ';'

        NAAPTOL_REMOVELIST = get_code_word("NAAPTOL_REMOVELIST")

        NAAPTOL_REMOVELIST = NAAPTOL_REMOVELIST.split(';')

        #retreiving name from the the url

        name = str(response.url)

        name = unescape(name)

        name_pos = name.rfind("/")

        name = name[name_pos+1:len(name)-5]

        name_pos = name.find("-")

        name = name[name_pos+1:len(name)]

        hxs = HtmlXPathSelector(response)

        #price and price2 determine range

        #NAAPTOL_XPATH2 = '//table[@class ="ProductDetails"]//td[@class="Price"]/span/text()'

        NAAPTOL_XPATH2 = get_code_word("NAAPTOL_XPATH2")

        prices = hxs.select(NAAPTOL_XPATH2)

        try:

            price1 = prices.extract()[0]

            #price1 = price1.decode("utf-8")

            price1 = price1.strip()

        except:

            price1 = ""

        try:

            price2 = prices.extract()[1]

            #price2 = price2.decode("utf-8")

            price2 = price2.strip()

        except:

            price2 = ""

        try:

            if price1 == "" and price2 == "":

                #NAAPTOL_XPATH3 = '//table[@class ="ProductDetails"]//td[@class="Price"]/span/script/text()'

                NAAPTOL_XPATH3 = get_code_word("NAAPTOL_XPATH3")

                prices = hxs.select(NAAPTOL_XPATH3)

                price = str(prices.extract()[0])

                pos1 = price.find("'")

                pos2 = price.find("'",pos1+1,len(price))

                price1 = price[pos1+1:pos2] + "(approx)" 

                price2 = ""

        except:

            price1 = price2 = ""

        #removelist is used for converting price to decimal format containing only numbers and '.'    

        if price1 != '':

            for r in NAAPTOL_REMOVELIST: 

                while price1.find(r) != -1:

                    price1 = price1.replace(r, "")

            price1 = price1.strip()

        if price2 != '':        

            for r in NAAPTOL_REMOVELIST: 

                while price2.find(r) != -1:

                    price2 = price2.replace(r, "")

            price2 = price2.strip()

        if price1 == "Rates Not Available":

            price1 = price2 = ""

        #range = price1 to price2

        range = price1

        if price2 != "":

            range = str(range) + " to " 

            range = range + str(price2) 

        da.add_new_naaptolphone(name, range)

        OnlineSellers_pricelist = []

        OnlineSellers_namelist = []

        try:

            #ct1 holds the count of online sellers

            #NAAPTOL_XPATH4 = '//div[@id="OnlineSellers"]//div[@class="ProductResultHead"]//div[@class="headingstyle"]/text()'

            NAAPTOL_XPATH4 = get_code_word("NAAPTOL_XPATH4")

            ct1 = hxs.select(NAAPTOL_XPATH4)

            ct1 = str(ct1.extract()[0])

            ct1 = ct1.decode("utf-8")

            ct1 = ct1.strip()

            ps1 = ct1.find(" ")

            ct1 = ct1[0:ps1]

            ct1 = int(ct1)

        except:

            ct1 = 0

        ct = ct1

        i = 0

        #NAAPTOL_XPATH5 = '//div[@id="onSellerContents"]//td[@class="price"]'

        NAAPTOL_XPATH5 = get_code_word("NAAPTOL_XPATH5")

        os_info = hxs.select(NAAPTOL_XPATH5)

        while ct > 0:

            os = os_info[i].extract()

            ps1 = os.find(">")

            ps2 = os.find("<",ps1)

            os = os[ps1+1:ps2]

            if os != '':        

                for r in NAAPTOL_REMOVELIST: 

                    while os.find(r) != -1:

                        os = os.replace(r, "")

            os = urllib.unquote(os)

            try:

                os = int(os)

            except:

                #stored in format different than previous one

                os = os_info[i].extract()

                ps1 = os.find(">",ps2)

                ps2 = os.find("<",ps1)

                os = os[ps1+1:ps2]

                if os != '':        

                    for r in NAAPTOL_REMOVELIST: 

                        while os.find(r) != -1:

                            os = os.replace(r, "")

                os = urllib.unquote(os)

                os = int(os) 

            OnlineSellers_pricelist.append(os)

            #NAAPTOL_XPATH6 = '//div[@id="onSellerContents"]//tr[@class="DottedBorder"]/td/a[@id="storeInfoPop'  

            NAAPTOL_XPATH6 = get_code_word("NAAPTOL_XPATH6")

            #NAAPTOL_XPATH7 = '"]/span/text()'

            NAAPTOL_XPATH7 = get_code_word("NAAPTOL_XPATH7")

            NAAPTOL_XPATH6 = NAAPTOL_XPATH6 + str(i) 

            NAAPTOL_XPATH6 = NAAPTOL_XPATH6 + NAAPTOL_XPATH7 

            path = NAAPTOL_XPATH6

            osname = hxs.select(path)

            osname = osname.extract()[0]

            osname = unescape(osname)

            osname = urllib.unquote(osname)

            OnlineSellers_namelist.append(osname)

            i = i+1

            ct = ct-1

        l = len(OnlineSellers_pricelist)

        i = 0 

        nid = da.get_naaptolphone(name,range).id

        while l > 0:

            da.add_new_ntonlinesp(nid, OnlineSellers_namelist[i], OnlineSellers_pricelist[i])

            i = i+1

            l = l-1

        LocalSellers_pricelist = []   

        LocalSellers_namelist = []

        try:

            #ct1 holds the count of online sellers

            #NAAPTOL_XPATH8 = '//div[@id="LocalStores"]//div[@class="ProductResultHead"]//div[@class="headingstyle"]/text()'

            NAAPTOL_XPATH8 = get_code_word("NAAPTOL_XPATH8")

            ct1 = hxs.select(NAAPTOL_XPATH8)

            ct1 = str(ct1.extract()[0])

            ct1 = ct1.decode("utf-8")

            ct1 = ct1.strip()

            ps1 = ct1.find(" ")

            ct1 = ct1[0:ps1]

            ct1 = int(ct1)

        except:

            ct1 = 0

        ct = ct1

        i = 0

        #NAAPTOL_XPATH9 = '//div[@id="offSellerContents"]//td[@class="price"]'

        NAAPTOL_XPATH9 = get_code_word("NAAPTOL_XPATH9")

        #NAAPTOL_XPATH10 = '//div[@id="offSellerContents"]//span[@class="LocalStoreHeading"]/text()'

        NAAPTOL_XPATH10 = get_code_word("NAAPTOL_XPATH10")

        os_info = hxs.select(NAAPTOL_XPATH9)

        os_names = hxs.select(NAAPTOL_XPATH10)

        while ct > 0:

            os = os_info[i].extract()

            osname = os_names[i].extract() 

            ps1 = os.find(">")

            ps2 = os.find("<",ps1)

            os = os[ps1+1:ps2]

            if os != '':        

                for r in NAAPTOL_REMOVELIST: 

                    while os.find(r) != -1:

                        os = os.replace(r, "")

            os = urllib.unquote(os)

            osname = urllib.unquote(osname)

            osname = unescape(osname)

            try:

                os = int(os)

            except:

                #stored in format different than previous one

                os = os_info[i].extract()

                ps1 = os.find(">",ps2)

                ps2 = os.find("<",ps1)

                os = os[ps1+1:ps2]

                if os != '':        

                    for r in NAAPTOL_REMOVELIST: 

                        while os.find(r) != -1:

                            os = os.replace(r, "")

                os = urllib.unquote(os)

                os = int(os)        

            LocalSellers_pricelist.append(os)

            LocalSellers_namelist.append(osname)

            i = i+1

            ct = ct-1

        l = len(LocalSellers_pricelist)

        i = 0

        nid = da.get_naaptolphone(name,range).id

        while l > 0:

            da.add_new_ntofflinesp(nid, LocalSellers_namelist[i], LocalSellers_pricelist[i])

            i = i+1

            l = l-1

SPIDER = naaptol_price2()