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237 lines
9.3 KiB
237 lines
9.3 KiB
import os
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import yaml
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import json
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import urllib.request, urllib.error, urllib.parse
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from lxml import etree
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import lxml.html
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import lxml.html.soupparser
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class fdb_spider(object):
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def __init__(self, config_file):
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with open(config_file, "r") as stream:
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try:
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self.config = yaml.safe_load(stream)
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except yaml.YAMLError as exc:
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print(exc)
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# input list of funding databases in form of yaml file ['foerderinfo.bund.de', 'ausschreibungen.giz.de', .. , 'usw']
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def download_entry_list_pages_of_funding_databases(self, list_of_fdbs):
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# download only html pages of the funding databases specified in input
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for fdb in list_of_fdbs:
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for key in self.config:
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if key in list_of_fdbs:
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try:
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entry_list = self.config.get(key).get("entry-list")
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except Exception as e:
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print(
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"There is a problem with the configuration variable entryList in the config.yaml - the original error message is:",
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e,
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)
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try:
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entry_list_link1 = entry_list.get("link1")
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except Exception as e:
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print(
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"No link1 defined in config.yaml - the original error message is:",
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e,
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)
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try:
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entry_list_link2 = entry_list.get("link2")
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except Exception as e:
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print(
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"No link2 defined in config.yaml - the original error message is:",
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e,
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)
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try:
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entry_iteration_var_list = eval(entry_list.get("iteration-var-list"))
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except Exception as e:
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print(
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"No iteration-var-list defined in config.yaml - the original error message is:",
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e,
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)
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for i in entry_iteration_var_list:
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# download the html page of the List of entrys
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response = urllib.request.urlopen(entry_list_link1 + string(i) + entry_list_link2)
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web_content = response.read().decode("UTF-8")
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# save interim results to files
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f = open("spiders/pages/" + key + str(i) + "entryList.html", "w+")
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f.write(webContent)
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f.close
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def parse_entry_list_data2dictionary(self, list_of_fdbs):
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for fdb in list_of_fdbs:
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try:
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iteration_var_list = eval(self.config.get(fdb).get("entry-list").get("iteration-var-list"))
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except Exception as e:
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print(
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"There is a problem with the configuration variable entryList iteration var list in the config.yaml - the original error message is:",
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e,
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)
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for i in iteration_var_list:
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try:
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# use soupparser to handle broken html
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tree = lxml.html.soupparser.parse(
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"spiders/pages/" + fdb + str(i) + "entryList.html"
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)
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# for e in tree.iter():
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#
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# print(e.tag)
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#
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# for e in tree.xpath('//html//body//form//table//tr//td//table//tr'):
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#
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# #print(etree.tostring(e).decode())
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dictionary_entry_list = {}
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fdb_conf = self.config.get(fdb)
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fdb_domain = fdb_conf.get("domain")
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fdb_conf_entry_list = fdb_conf.get("entry-list")
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fdb_conf_entry_list_parent = fdb_conf_entry_list.get("parent")
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fdb_conf_entry_list_child_name = fdb_conf_entry_list.get("child-name")
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fdb_conf_entry_list_child_link = fdb_conf_entry_list.get("child-link")
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for n in range(len(tree.xpath(fdb_conf_entry_list_parent))):
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name = tree.xpath(
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fdb_conf_entry_list_parent
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+ "["
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+ str(n)
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+ "]"
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+ fdb_conf_entry_list_child_name
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)
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link = tree.xpath(
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fdb_conf_entry_list_parent
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+ "["
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+ str(n)
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+ "]"
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+ fdb_conf_entry_list_child_link
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)
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if len(name) > 0:
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dictionary_entry_list[n] = {}
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dictionary_entry_list[n]["name"] = name[0]
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if fdb_domain in link[0]:
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dictionary_entry_list[n]["link"] = link[0]
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if fdb_domain not in link[0]:
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dictionary_entry_list[n]["link"] = fdb_domain + link[0]
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except Exception as e:
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print(
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"parsing the html did not work. Possibly you first have to run download_link_list_pages_of_funding_databases(). The original error message is:",
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e,
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)
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# save interim results to files
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f = open("spiders/output/" + fdb + str(i) + "entryList.txt", "w+")
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f.write(str(dictionary_entry_list))
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f.close
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def download_entry_data_htmls(self, list_of_fdbs):
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for fdb in list_of_fdbs:
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try:
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iteration_var_list = eval(self.config.get(fdb).get("entry-list").get("iteration-var-list"))
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except Exception as e:
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print(
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"There is a problem with the configuration variable entryList iteration var list in the config.yaml - the original error message is:",
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e,
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)
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for i in iteration_var_list:
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f = open("spiders/output/" + fdb + str(i) + "entryList.txt")
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text = f.read()
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dictionary_entry_list = eval(text)
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for entry_id in dictionary_entry_list:
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entry_link = dictionary_entry_list[entry_id]["link"]
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# download the html page of the entry
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response = urllib.request.urlopen(entry_link)
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web_content = response.read().decode("UTF-8")
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# save interim results to files
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file_name = "spiders/pages/" + fdb + str(i) + "/" + str(entry_id) + ".html"
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os.makedirs(os.path.dirname(file_name), exist_ok=True)
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f = open(file_name, "w+")
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f.write(web_content)
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f.close
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def parse_entry_data2dictionary(self, list_of_fdbs):
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for fdb in list_of_fdbs:
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try:
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iteration_var_list = eval(self.config.get(fdb).get("entry-list").get("iteration-var-list"))
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except Exception as e:
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print(
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"There is a problem with the configuration variable entryList iteration var list in the config.yaml - the original error message is:",
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e,
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)
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for i in iteration_var_list:
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print("started to parse data of entry of " + fdb + " ..")
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f = open("spiders/output/" + fdb + str(i) + "entryList.txt")
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text = f.read()
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dictionary_entry_list = eval(text)
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fdb_conf = self.config.get(fdb)
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fdb_domain = fdb_conf.get("domain")
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fdb_conf_entry = fdb_conf.get("entry")
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fdb_conf_entry_info1 = fdb_conf_entry.get("info-1")
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fdb_conf_entry_info1_parent = fdb_conf_entry_info1.get("parent")
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fdb_conf_entry_info1_child_1 = fdb_conf_entry_info1.get(
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"child-1"
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)
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for entry_id in dictionary_entry_list:
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print(
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"started to parse data of entry with name "
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+ dictionary_entry_list[entry_id]["name"]
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+ " .."
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)
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file_name = "spiders/pages/" + fdb + str(i) + "/" + str(entry_id) + ".html"
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tree = lxml.html.soupparser.parse(file_name)
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child_1 = tree.xpath(
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fdb_conf_entry_info1_parent
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+ fdb_conf_entry_info1_child_1
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)
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print("oi", child_1)
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if len(child_1) > 0:
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dictionary_entry_list[entry_id]["child_1"] = child_1[
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0
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]
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f = open("spiders/output/" + fdb + str(i) + "entryList.txt", "w+")
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f.write(str(dictionary_entry_list))
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f.close
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