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332 lines
12 KiB
Rust
332 lines
12 KiB
Rust
/*
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* meli - addressbook module
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*
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* Copyright 2019 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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//! # vCard format
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//!
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//! This module implements the standards:
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//!
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//! - Version 3 (read-only) [RFC 2426: vCard MIME Directory Profile](https://datatracker.ietf.org/doc/2426)
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//! - Version 4 [RFC 6350: vCard Format Specification](https://datatracker.ietf.org/doc/rfc6350/)
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//! - Parameter escaping [RFC 6868 Parameter Value Encoding in iCalendar and vCard](https://datatracker.ietf.org/doc/rfc6868/)
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use std::{collections::HashMap, convert::TryInto};
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use super::*;
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use crate::{
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error::{Error, Result},
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parsec::{match_literal_anycase, one_or_more, peek, prefix, take_until, Parser},
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};
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/* Supported vcard versions */
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pub trait VCardVersion: core::fmt::Debug {}
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#[derive(Debug)]
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pub struct VCardVersionUnknown;
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impl VCardVersion for VCardVersionUnknown {}
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/// Version 4 <https://tools.ietf.org/html/rfc6350>
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#[derive(Debug)]
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pub struct VCardVersion4;
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impl VCardVersion for VCardVersion4 {}
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/// <https://tools.ietf.org/html/rfc2426>
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#[derive(Debug)]
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pub struct VCardVersion3;
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impl VCardVersion for VCardVersion3 {}
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pub struct CardDeserializer;
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const HEADER_CRLF: &str = "BEGIN:VCARD\r\n"; //VERSION:4.0\r\n";
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const FOOTER_CRLF: &str = "END:VCARD\r\n";
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const HEADER_LF: &str = "BEGIN:VCARD\n"; //VERSION:4.0\n";
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const FOOTER_LF: &str = "END:VCARD\n";
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const HEADER: &str = "BEGIN:VCARD"; //VERSION:4.0";
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const FOOTER: &str = "END:VCARD";
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#[derive(Debug)]
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pub struct VCard<T: VCardVersion>(
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HashMap<String, ContentLine>,
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std::marker::PhantomData<*const T>,
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);
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impl<V: VCardVersion> VCard<V> {
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pub fn new_v4() -> VCard<impl VCardVersion> {
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VCard(
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HashMap::default(),
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std::marker::PhantomData::<*const VCardVersion4>,
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)
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}
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}
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#[derive(Debug, Default, Clone)]
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pub struct ContentLine {
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group: Option<String>,
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params: Vec<String>,
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value: String,
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}
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impl CardDeserializer {
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pub fn from_str(mut input: &str) -> Result<VCard<impl VCardVersion>> {
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input = if (!input.starts_with(HEADER_CRLF) || !input.ends_with(FOOTER_CRLF))
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&& (!input.starts_with(HEADER_LF) || !input.ends_with(FOOTER_LF))
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{
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return Err(Error::new(format!(
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"Error while parsing vcard: input does not start or end with correct header and \
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footer. input is:\n{:?}",
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input
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)));
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} else if input.starts_with(HEADER_CRLF) {
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&input[HEADER_CRLF.len()..input.len() - FOOTER_CRLF.len()]
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} else {
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&input[HEADER_LF.len()..input.len() - FOOTER_LF.len()]
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};
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let mut ret = HashMap::default();
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enum Stage {
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Group,
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Name,
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Param,
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Value,
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}
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let mut stage: Stage;
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for l in input.lines() {
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let mut el = ContentLine::default();
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let mut value_start = 0;
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let mut has_colon = false;
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stage = Stage::Group;
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let mut name = String::new();
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for i in 0..l.len() {
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let byte = l.as_bytes()[i];
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match (byte, &stage) {
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(b'.', Stage::Group) if l.as_bytes()[i] != b'\\' => {
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el.group = Some(l[value_start..i].to_string());
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value_start = i + 1;
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stage = Stage::Name;
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}
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(b';', Stage::Group) => {
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name = l[value_start..i].to_string();
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value_start = i + 1;
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stage = Stage::Param;
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}
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(b';', Stage::Param) => {
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el.params.push(l[value_start..i].to_string());
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value_start = i + 1;
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}
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(b';', Stage::Name) => {
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name = l[value_start..i].to_string();
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value_start = i + 1;
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stage = Stage::Param;
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}
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(b':', Stage::Group) | (b':', Stage::Name) => {
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name = l[value_start..i].to_string();
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has_colon = true;
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value_start = i + 1;
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stage = Stage::Value;
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}
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(b':', Stage::Param) if l.as_bytes()[i.saturating_sub(1)] != b'\\' => {
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el.params.push(l[value_start..i].to_string());
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has_colon = true;
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value_start = i + 1;
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stage = Stage::Value;
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}
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_ => {}
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}
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}
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if !has_colon {
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return Err(Error::new(format!(
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"Error while parsing vcard: error at line {}, no colon. {:?}",
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l, el
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)));
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}
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if name.is_empty() {
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return Err(Error::new(format!(
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"Error while parsing vcard: error at line {}, no name for content line. {:?}",
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l, el
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)));
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}
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el.value = l[value_start..].replace("\\:", ":");
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ret.insert(name, el);
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}
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Ok(VCard(ret, std::marker::PhantomData::<*const VCardVersion4>))
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}
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}
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impl<V: VCardVersion> TryInto<Card> for VCard<V> {
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type Error = crate::error::Error;
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fn try_into(mut self) -> crate::error::Result<Card> {
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let mut card = Card::new();
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card.set_id(CardId::Hash({
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use std::hash::Hasher;
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let mut hasher = std::collections::hash_map::DefaultHasher::new();
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if let Some(val) = self.0.get("FN") {
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hasher.write(val.value.as_bytes());
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}
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if let Some(val) = self.0.get("N") {
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hasher.write(val.value.as_bytes());
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}
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if let Some(val) = self.0.get("EMAIL") {
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hasher.write(val.value.as_bytes());
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}
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hasher.finish()
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}));
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if let Some(val) = self.0.remove("FN") {
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card.set_name(val.value);
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} else {
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return Err(Error::new("FN entry missing in VCard."));
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}
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if let Some(val) = self.0.remove("NICKNAME") {
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card.set_additionalname(val.value);
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}
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if let Some(val) = self.0.remove("BDAY") {
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/* 4.3.4. DATE-AND-OR-TIME
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Either a DATE-TIME, a DATE, or a TIME value. To allow unambiguous
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interpretation, a stand-alone TIME value is always preceded by a "T".
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Examples for "date-and-or-time":
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19961022T140000
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--1022T1400
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---22T14
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19850412
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1985-04
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1985
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--0412
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---12
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T102200
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T1022
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T10
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T-2200
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T--00
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T102200Z
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T102200-0800
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*/
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card.birthday = crate::datetime::timestamp_from_string(val.value.as_str(), "%Y%m%d\0")
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.unwrap_or_default();
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}
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if let Some(val) = self.0.remove("EMAIL") {
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card.set_email(val.value);
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}
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if let Some(val) = self.0.remove("URL") {
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card.set_url(val.value);
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}
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if let Some(val) = self.0.remove("KEY") {
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card.set_key(val.value);
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}
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for (k, v) in self.0.into_iter() {
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if k.eq_ignore_ascii_case("VERSION") || k.eq_ignore_ascii_case("N") {
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continue;
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}
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card.set_extra_property(&k, v.value);
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}
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Ok(card)
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}
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}
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fn parse_card<'a>() -> impl Parser<'a, Vec<&'a str>> {
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move |input| {
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one_or_more(prefix(
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peek(match_literal_anycase(HEADER)),
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take_until(match_literal_anycase(FOOTER)),
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))
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.parse(input)
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}
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}
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#[test]
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fn test_load_cards() {
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/*
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let mut contents = String::with_capacity(256);
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let p = &std::path::Path::new("/tmp/contacts.vcf");
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use std::io::Read;
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contents.clear();
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std::fs::File::open(&p)
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.unwrap()
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.read_to_string(&mut contents)
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.unwrap();
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for s in parse_card().parse(contents.as_str()).unwrap().1 {
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println!("");
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println!("{}", s);
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println!("{:?}", CardDeserializer::from_str(s));
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println!("");
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}
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*/
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}
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pub fn load_cards(p: &std::path::Path) -> Result<Vec<Card>> {
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let vcf_dir = std::fs::read_dir(p);
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let mut ret: Vec<Result<_>> = Vec::new();
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let mut is_any_valid = false;
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if vcf_dir.is_ok() {
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let mut contents = String::with_capacity(256);
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for f in vcf_dir? {
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if f.is_err() {
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continue;
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}
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let f = f?.path();
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if f.is_file() {
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use std::io::Read;
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contents.clear();
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std::fs::File::open(&f)?.read_to_string(&mut contents)?;
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match parse_card().parse(contents.as_str()) {
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Ok((_, c)) => {
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for s in c {
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ret.push(
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CardDeserializer::from_str(s)
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.and_then(TryInto::try_into)
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.map(|mut card| {
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Card::set_external_resource(&mut card, true);
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is_any_valid = true;
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card
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}),
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);
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}
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}
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Err(err) => {
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log::warn!("Could not parse vcard from {}: {}", f.display(), err);
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}
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}
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}
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}
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}
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for c in &ret {
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if c.is_err() {
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debug!(&c);
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}
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}
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if is_any_valid {
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ret.retain(Result::is_ok);
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}
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ret.into_iter().collect::<Result<Vec<Card>>>()
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}
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#[test]
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fn test_card() {
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let j = "BEGIN:VCARD\r\nVERSION:4.0\r\nN:Gump;Forrest;;Mr.;\r\nFN:Forrest Gump\r\nORG:Bubba Gump Shrimp Co.\r\nTITLE:Shrimp Man\r\nPHOTO;MEDIATYPE=image/gif:http://www.example.com/dir_photos/my_photo.gif\r\nTEL;TYPE=work,voice;VALUE=uri:tel:+1-111-555-1212\r\nTEL;TYPE=home,voice;VALUE=uri:tel:+1-404-555-1212\r\nADR;TYPE=WORK;PREF=1;LABEL=\"100 Waters Edge\\nBaytown\\, LA 30314\\nUnited States of America\":;;100 Waters Edge;Baytown;LA;30314;United States of America\r\nADR;TYPE=HOME;LABEL=\"42 Plantation St.\\nBaytown\\, LA 30314\\nUnited States of America\":;;42 Plantation St.;Baytown;LA;30314;United States of America\r\nEMAIL:forrestgump@example.com\r\nREV:20080424T195243Z\r\nx-qq:21588891\r\nEND:VCARD\r\n";
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println!("results = {:#?}", CardDeserializer::from_str(j).unwrap());
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let j = "BEGIN:VCARD\nVERSION:4.0\nN:Gump;Forrest;;Mr.;\nFN:Forrest Gump\nORG:Bubba Gump Shrimp Co.\nTITLE:Shrimp Man\nPHOTO;MEDIATYPE=image/gif:http://www.example.com/dir_photos/my_photo.gif\nTEL;TYPE=work,voice;VALUE=uri:tel:+1-111-555-1212\nTEL;TYPE=home,voice;VALUE=uri:tel:+1-404-555-1212\nADR;TYPE=WORK;PREF=1;LABEL=\"100 Waters Edge\\nBaytown\\, LA 30314\\nUnited States of America\":;;100 Waters Edge;Baytown;LA;30314;United States of America\nADR;TYPE=HOME;LABEL=\"42 Plantation St.\\nBaytown\\, LA 30314\\nUnited States of America\":;;42 Plantation St.;Baytown;LA;30314;United States of America\nEMAIL:forrestgump@example.com\nREV:20080424T195243Z\nx-qq:21588891\nEND:VCARD\n";
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println!("results = {:#?}", CardDeserializer::from_str(j).unwrap());
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}
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