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| 1 | +#! /usr/bin/env python3 |
| 2 | +from typing import ( |
| 3 | + Optional, |
| 4 | + List, |
| 5 | + Dict, |
| 6 | + Any, |
| 7 | + # Tuple, |
| 8 | +) |
| 9 | + |
| 10 | +import sys |
| 11 | +from bs4 import BeautifulSoup |
| 12 | +import time |
| 13 | +import requests_cache |
| 14 | + |
| 15 | + |
| 16 | +class IanaCrawler: |
| 17 | + URL: str = "https://www.iana.org/domains/root/db" |
| 18 | + CacheTime: int = 3600 * 24 # default 24 hours |
| 19 | + Session: Any = None |
| 20 | + cacheName: str = ".iana_cache" |
| 21 | + verbose: bool = False |
| 22 | + cacheBackend: str = "filesystem" |
| 23 | + records: List[Any] = [] |
| 24 | + columns: List[Any] = [] |
| 25 | + |
| 26 | + resolver: Any = None |
| 27 | + |
| 28 | + def __init__( |
| 29 | + self, |
| 30 | + verbose: bool = False, |
| 31 | + resolver: Any = None, |
| 32 | + ): |
| 33 | + self.verbose = verbose |
| 34 | + self.resolver = resolver |
| 35 | + self.Session = requests_cache.CachedSession( |
| 36 | + self.cacheName, |
| 37 | + backend=self.cacheBackend, |
| 38 | + ) |
| 39 | + |
| 40 | + def getUrl(self) -> str: |
| 41 | + return self.URL |
| 42 | + |
| 43 | + def getBasicBs( |
| 44 | + self, |
| 45 | + url: str, |
| 46 | + ) -> BeautifulSoup: |
| 47 | + try: |
| 48 | + response = self.Session.get(url) |
| 49 | + except Exception as e: |
| 50 | + # in case of no data, sleep and try again |
| 51 | + print(e, file=sys.stderr) |
| 52 | + time.sleep(15) |
| 53 | + response = self.Session.get(url) |
| 54 | + |
| 55 | + soup = BeautifulSoup(response.text, "html.parser") |
| 56 | + return soup |
| 57 | + |
| 58 | + def getAdditionalItem( |
| 59 | + self, |
| 60 | + what: str, |
| 61 | + data: List[str], |
| 62 | + ) -> Optional[str]: |
| 63 | + |
| 64 | + for i in [0, 1]: |
| 65 | + try: |
| 66 | + z: str = f"{what}:" |
| 67 | + if z in data[i]: |
| 68 | + return data[i].replace(z, "").strip() |
| 69 | + except Exception as _: |
| 70 | + _ = _ |
| 71 | + return None |
| 72 | + return None |
| 73 | + |
| 74 | + def getTldInfo(self) -> None: |
| 75 | + soup = self.getBasicBs(self.getUrl()) |
| 76 | + table: Any = soup.find("table") # the first table has the tld data |
| 77 | + |
| 78 | + self.records: List[Any] = [] |
| 79 | + self.columns: List[Any] = [] |
| 80 | + n = 0 |
| 81 | + for tr in table.findAll("tr"): |
| 82 | + n += 1 |
| 83 | + # extract header info if present |
| 84 | + ths = tr.findAll("th") |
| 85 | + if ths != []: |
| 86 | + for each in ths: |
| 87 | + self.columns.append(each.text) |
| 88 | + continue |
| 89 | + |
| 90 | + # extrct data |
| 91 | + trs = tr.findAll("td") |
| 92 | + record = [] |
| 93 | + for each in trs: |
| 94 | + try: |
| 95 | + link = each.find("a")["href"] |
| 96 | + aa = link.split("/") |
| 97 | + record.append(aa[-1].replace(".html", "")) |
| 98 | + record.append(each.text.strip()) |
| 99 | + except Exception as _: |
| 100 | + _ = _ |
| 101 | + record.append(each.text) |
| 102 | + self.records.append(record) |
| 103 | + |
| 104 | + self.columns.insert(0, "Link") |
| 105 | + |
| 106 | + def getTldPWithString( |
| 107 | + self, |
| 108 | + url: str, |
| 109 | + text: str, |
| 110 | + ) -> Optional[str]: |
| 111 | + soup = self.getBasicBs(url) |
| 112 | + gfg: List[Any] = soup.find_all(lambda tag: tag.name == "p" and text in tag.text) |
| 113 | + if len(gfg): |
| 114 | + s: str = gfg[0].text.strip() |
| 115 | + return s |
| 116 | + return None |
| 117 | + |
| 118 | + def resolveWhois( |
| 119 | + self, |
| 120 | + whois: str, |
| 121 | + ) -> List[Any]: |
| 122 | + ll: List[Any] = [] |
| 123 | + if self.resolver: |
| 124 | + try: |
| 125 | + answer = list(self.resolver.resolve(whois, "A").response.answer) |
| 126 | + except Exception as e: |
| 127 | + print(whois, e, file=sys.stderr) |
| 128 | + time.sleep(30) |
| 129 | + answer = list(self.resolver.resolve(whois, "A").response.answer) |
| 130 | + |
| 131 | + for a in answer: |
| 132 | + s = str(a) |
| 133 | + if "\n" in s: |
| 134 | + ss = s.split("\n") |
| 135 | + ll.append(ss) |
| 136 | + else: |
| 137 | + ll.append(s) |
| 138 | + |
| 139 | + if self.verbose: |
| 140 | + print(a) |
| 141 | + return ll |
| 142 | + |
| 143 | + def addInfoToOneTld( |
| 144 | + self, |
| 145 | + tldItem: List[Any], |
| 146 | + ) -> List[str]: |
| 147 | + url = tldItem[0] |
| 148 | + |
| 149 | + if self.verbose: |
| 150 | + print(url, file=sys.stderr) |
| 151 | + |
| 152 | + if tldItem[3] == "Not assigned": |
| 153 | + tldItem[3] = None |
| 154 | + |
| 155 | + zz = { |
| 156 | + "Whois": "WHOIS Server", |
| 157 | + "RegistrationUrl": "URL for registration services", |
| 158 | + } |
| 159 | + for key, val in zz.items(): |
| 160 | + regDataW = self.getTldPWithString(self.getUrl() + "/" + url + ".html", val) |
| 161 | + if regDataW: |
| 162 | + regDataW = regDataW.replace(val, key) |
| 163 | + regDataA = regDataW.split("\n") |
| 164 | + |
| 165 | + for s in [key]: |
| 166 | + tldItem.append(self.getAdditionalItem(s, regDataA)) |
| 167 | + else: |
| 168 | + tldItem.append(None) |
| 169 | + |
| 170 | + if tldItem[4]: |
| 171 | + ll = self.resolveWhois(tldItem[4]) |
| 172 | + tldItem.append(ll) |
| 173 | + else: |
| 174 | + tldItem.append(None) |
| 175 | + |
| 176 | + if self.verbose: |
| 177 | + print(url, tldItem, file=sys.stderr) |
| 178 | + |
| 179 | + return tldItem |
| 180 | + |
| 181 | + def addInfoToAllTld(self) -> None: |
| 182 | + records2 = [] |
| 183 | + for tldItem in self.records: |
| 184 | + rr = self.addInfoToOneTld(tldItem) |
| 185 | + if self.verbose: |
| 186 | + print(len(rr), rr) |
| 187 | + records2.append(rr) |
| 188 | + self.columns.insert(4, "Whois") |
| 189 | + self.columns.insert(5, "RegistrationUrl") |
| 190 | + self.columns.insert(6, "DnsResolve-A") |
| 191 | + self.records = records2 |
| 192 | + self.columns[3] = self.columns[3].replace(" ", "_") |
| 193 | + |
| 194 | + def getResults(self) -> Dict[str, Any]: |
| 195 | + ll = list(self.columns) |
| 196 | + ll[3] = ll[3].replace(" ", "_") |
| 197 | + return { |
| 198 | + "header": ll, |
| 199 | + "data": self.records, |
| 200 | + } |
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