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/*
* Copyright 2007 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// package com.google.zxing.client.result;
// import com.google.zxing.RXingResult;
// import java.util.regex.Pattern;
use regex::Regex;
use crate::RXingResult;
use super::{EmailAddressParsedRXingResult, ParsedClientResult, ResultParser};
use once_cell::sync::Lazy;
static ATEXT_ALPHANUMERIC: Lazy<Regex> =
Lazy::new(|| Regex::new("[a-zA-Z0-9@.!#$%&'*+\\-/=?^_`{|}~]+").unwrap());
/**
* Implements the "MATMSG" email message entry format.
*
* Supported keys: TO, SUB, BODY
*
* @author Sean Owen
*/
pub fn parse(result: &RXingResult) -> Option<ParsedClientResult> {
let rawText = ResultParser::getMassagedText(result);
if !rawText.starts_with("MATMSG:") {
return None;
}
let tos = ResultParser::match_docomo_prefixed_field("TO:", &rawText)?;
for to in &tos {
if !isBasicallyValidEmailAddress(to, &ATEXT_ALPHANUMERIC) {
return None;
}
}
let subject = ResultParser::match_single_docomo_prefixed_field("SUB:", &rawText, false)
.unwrap_or_default();
let body = ResultParser::match_single_docomo_prefixed_field("BODY:", &rawText, false)
.unwrap_or_default();
Some(ParsedClientResult::EmailResult(
EmailAddressParsedRXingResult::with_details(tos, Vec::new(), Vec::new(), subject, body),
))
}
/**
* This implements only the most basic checking for an email address's validity -- that it contains
* an '@' and contains no characters disallowed by RFC 2822. This is an overly lenient definition of
* validity. We want to generally be lenient here since this class is only intended to encapsulate what's
* in a barcode, not "judge" it.
*/
pub fn isBasicallyValidEmailAddress(email: &str, regex: &Regex) -> bool {
let email_exists = !email.is_empty();
let email_has_at = email.find('@').is_some();
let email_alphamatcher = if let Some(mtch) = regex.find(email) {
mtch.start() == 0 && mtch.end() == email.len()
} else {
false
};
email_exists && email_alphamatcher && email_has_at
// return email != null && ATEXT_ALPHANUMERIC.matcher(email).matches() && email.indexOf('@') >= 0;
}