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https://github.com/KnugiHK/WhatsApp-Chat-Exporter.git
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78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
import vobject
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from typing import List, TypedDict
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class ExportedContactNumbers(TypedDict):
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full_name: str
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numbers: List[str]
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class ContactsFromVCards:
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def __init__(self) -> None:
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self.contact_mapping = []
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def is_empty(self):
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return self.contact_mapping == []
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def load_vcf_file(self, vcf_file_path: str, default_country_code: str):
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self.contact_mapping = read_vcards_file(vcf_file_path, default_country_code)
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def enrich_from_vcards(self, chats):
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for number, name in self.contact_mapping:
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# short number must be a bad contact, lets skip it
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if len(number) <= 5:
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continue
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for chat in filter_chats_by_prefix(chats, number).values():
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if not hasattr(chat, 'name') or (hasattr(chat, 'name') and chat.name is None):
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setattr(chat, 'name', name)
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def read_vcards_file(vcf_file_path, default_country_code: str):
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contacts = []
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with open(vcf_file_path, mode="r", encoding="utf-8") as f:
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reader = vobject.readComponents(f)
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for row in reader:
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if not hasattr(row, 'fn') or not hasattr(row, 'tel'):
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continue
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contact: ExportedContactNumbers = {
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"full_name": row.fn.value,
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"numbers": list(map(lambda tel: tel.value, row.tel_list)),
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}
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contacts.append(contact)
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return map_number_to_name(contacts, default_country_code)
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def filter_chats_by_prefix(chats, prefix: str):
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return {k: v for k, v in chats.items() if k.startswith(prefix)}
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def map_number_to_name(contacts, default_country_code: str):
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mapping = []
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for contact in contacts:
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for index, num in enumerate(contact['numbers']):
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normalized = normalize_number(num, default_country_code)
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if len(contact['numbers']) > 1:
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name = f"{contact['full_name']} ({index+1})"
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else:
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name = contact['full_name']
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mapping.append((normalized, name))
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return mapping
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def normalize_number(number: str, country_code: str):
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# Clean the number
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number = ''.join(c for c in number if c.isdigit() or c == "+")
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# A number that starts with a + or 00 means it already have a country code
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for starting_char in ('+', "00"):
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if number.startswith(starting_char):
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return number[len(starting_char):]
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# leading zero should be removed
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if starting_char == '0':
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number = number[1:]
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return country_code + number # fall back
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