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3a58b2a1f4
the attachment buttons for images get some opacity for the text view, to indicate you don't have to open them explicitly.
286 lines
11 KiB
TypeScript
286 lines
11 KiB
TypeScript
// Javascript is generated from typescript, do not modify generated javascript because changes will be overwritten.
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// For authentication/security results.
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const underlineGreen = '#50c40f'
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const underlineRed = '#e15d1c'
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const underlineBlue = '#09f'
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const underlineGrey = '#aaa'
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const underlineYellow = 'yellow'
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// join elements in l with the results of calls to efn. efn can return
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// HTMLElements, which cannot be inserted into the dom multiple times, hence the
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// function.
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const join = (l: any, efn: () => any): any[] => {
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const r: any[] = []
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const n = l.length
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for (let i = 0; i < n; i++) {
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r.push(l[i])
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if (i < n-1) {
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r.push(efn())
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}
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}
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return r
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}
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// From https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types
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const imageTypes = [
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'image/avif',
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'image/webp',
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'image/gif',
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'image/png',
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'image/jpeg',
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'image/apng',
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'image/svg+xml',
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]
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const isImage = (a: api.Attachment) => imageTypes.includes((a.Part.MediaType + '/' + a.Part.MediaSubType).toLowerCase())
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// addLinks turns a line of text into alternating strings and links. Links that
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// would end with interpunction followed by whitespace are returned with that
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// interpunction moved to the next string instead.
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const addLinks = (text: string): (HTMLAnchorElement | string)[] => {
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// todo: look at ../rfc/3986 and fix up regexp. we should probably accept utf-8.
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const re = RegExp('(?:(http|https):\/\/|mailto:)([:%0-9a-zA-Z._~!$&\'/()*+,;=-]+@)?([\\[\\]0-9a-zA-Z.-]+)(:[0-9]+)?([:@%0-9a-zA-Z._~!$&\'/()*+,;=-]*)(\\?[:@%0-9a-zA-Z._~!$&\'/()*+,;=?-]*)?(#[:@%0-9a-zA-Z._~!$&\'/()*+,;=?-]*)?')
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const r = []
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while (text.length > 0) {
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const l = re.exec(text)
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if (!l) {
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r.push(text)
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break
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}
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let s = text.substring(0, l.index)
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let url = l[0]
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text = text.substring(l.index+url.length)
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r.push(s)
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// If URL ends with interpunction, and next character is whitespace or end, don't
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// include the interpunction in the URL.
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if (!text || /^[ \t\r\n]/.test(text)) {
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if (/[)>][!,.:;?]$/.test(url)) {
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text = url.substring(url.length-2)+text
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url = url.substring(0, url.length-2)
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} else if (/[)>!,.:;?]$/.test(url)) {
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text = url.substring(url.length-1)+text
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url = url.substring(0, url.length-1)
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}
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}
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r.push(dom.a(url, attr.href(url), url.startsWith('mailto:') ? [] : [attr.target('_blank'), attr.rel('noopener noreferrer')]))
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}
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return r
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}
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// renderText turns text into a renderable element with ">" interpreted as quoted
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// text (with different levels), and URLs replaced by links.
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const renderText = (text: string): HTMLElement => {
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return dom.div(text.split('\n').map(line => {
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let q = 0
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for (const c of line) {
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if (c == '>') {
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q++
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} else if (c !== ' ') {
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break
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}
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}
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if (q == 0) {
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return [addLinks(line), '\n']
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}
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q = (q-1)%3 + 1
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return dom.div(dom._class('quoted'+q), addLinks(line))
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}))
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}
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const displayName = (s: string) => {
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// ../rfc/5322:1216
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// ../rfc/5322:1270
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// todo: need support for group addresses (eg "undisclosed recipients").
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// ../rfc/5322:697
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const specials = /[()<>\[\]:;@\\,."]/
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if (specials.test(s)) {
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return '"' + s.replace('\\', '\\\\').replace('"', '\\"') + '"'
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}
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return s
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}
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const formatDomain = (dom: api.Domain) => dom.Unicode || dom.ASCII
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// format an address with both name and email address.
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const formatAddress = (a: api.MessageAddress): string => {
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let s = '<' + a.User + '@' + formatDomain(a.Domain) + '>'
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if (a.Name) {
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s = displayName(a.Name) + ' ' + s
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}
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return s
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}
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// Like formatAddress, but returns an element with a title (for hover) with the ASCII domain, in case of IDN.
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const formatAddressElem = (a: api.MessageAddress): string | HTMLElement => {
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if (!a.Domain.Unicode) {
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return formatAddress(a)
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}
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return dom.span(a.Name ? [displayName(a.Name), ' '] : '', '<', a.User, '@', dom.span(attr.title(a.Domain.ASCII), formatDomain(a.Domain)), '>')
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}
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// like formatAddress, but underline domain with dmarc-like validation if appropriate.
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const formatAddressValidated = (a: api.MessageAddress, m: api.Message, use: boolean): (string | HTMLElement)[] => {
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const domainText = (domstr: string, ascii: string): HTMLElement | string => {
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if (!use) {
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return domstr
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}
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const extra = domstr === ascii ? '' : '; domain '+ascii
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// We want to show how "approved" this message is given the message From's domain.
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// We have MsgFromValidation available. It's not the greatest, being a mix of
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// potential strict validations, actual DMARC policy validation, potential relaxed
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// validation, but no explicit fail or (temporary) errors. We also don't know if
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// historic messages were from a mailing list. We could add a heuristic based on
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// List-Id headers, but it would be unreliable...
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// todo: add field to Message with the exact results.
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let color = ''
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let title = ''
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switch (m.MsgFromValidation) {
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case api.Validation.ValidationStrict:
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color = underlineGreen
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title = 'Message would have matched a strict DMARC policy.'
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break
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case api.Validation.ValidationDMARC:
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color = underlineGreen
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title = 'Message matched DMARC policy of domain.'
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break
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case api.Validation.ValidationRelaxed:
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color = underlineGreen
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title = 'Domain did not have a DMARC policy, but message would match a relaxed policy if it had existed.'
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break;
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case api.Validation.ValidationNone:
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if (m.IsForward || m.IsMailingList) {
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color = underlineBlue
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title = 'Message would not pass DMARC policy, but came in through a configured mailing list or forwarding address.'
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} else {
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color = underlineRed
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title = 'Either domain did not have a DMARC policy, or message did not adhere to it.'
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}
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break;
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default:
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// Also for zero value, when unknown. E.g. for sent messages added with IMAP.
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title = 'Unknown DMARC verification result.'
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return dom.span(attr.title(title+extra), domstr)
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}
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return dom.span(attr.title(title+extra), style({borderBottom: '1.5px solid '+color, textDecoration: 'none'}), domstr)
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}
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let l: (string | HTMLElement)[] = []
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if (a.Name) {
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l.push(a.Name + ' ')
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}
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l.push('<' + a.User + '@')
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l.push(domainText(formatDomain(a.Domain), a.Domain.ASCII))
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l.push('>')
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return l
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}
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// format just the name if present and it doesn't look like an address, or otherwise just the email address.
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const formatAddressShort = (a: api.MessageAddress, junk: boolean): string => {
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const n = a.Name
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if (!junk && n && !n.includes('<') && !n.includes('@') && !n.includes('>')) {
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return n
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}
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return '<' + a.User + '@' + formatDomain(a.Domain) + '>'
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}
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// return just the email address.
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const formatEmail = (a: api.MessageAddress) => a.User + '@' + formatDomain(a.Domain)
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const equalAddress = (a: api.MessageAddress, b: api.MessageAddress) => {
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return (!a.User || !b.User || a.User === b.User) && a.Domain.ASCII === b.Domain.ASCII
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}
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const addressList = (allAddrs: boolean, l: api.MessageAddress[]) => {
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if (l.length <= 5 || allAddrs) {
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return dom.span(join(l.map(a => formatAddressElem(a)), () => ', '))
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}
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let elem = dom.span(
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join(
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l.slice(0, 4).map(a => formatAddressElem(a)),
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() => ', '
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),
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' ',
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dom.clickbutton('More...', attr.title('More addresses:\n'+l.slice(4).map(a => formatAddress(a)).join(',\n')), function click() {
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const nelem = dom.span(
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join(l.map(a => formatAddressElem(a)), () => ', '),
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' ',
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dom.clickbutton('Less...', function click() {
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elem.replaceWith(addressList(allAddrs, l))
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}),
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)
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elem.replaceWith(nelem)
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elem = nelem
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})
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)
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return elem
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}
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// loadMsgheaderView loads the common message headers into msgheaderelem.
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// if refineKeyword is set, labels are shown and a click causes a call to
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// refineKeyword.
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const loadMsgheaderView = (msgheaderelem: HTMLElement, mi: api.MessageItem, moreHeaders: string[], refineKeyword: null | ((kw: string) => Promise<void>), allAddrs: boolean) => {
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const msgenv = mi.Envelope
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const received = mi.Message.Received
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const receivedlocal = new Date(received.getTime())
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dom._kids(msgheaderelem,
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// todo: make addresses clickable, start search (keep current mailbox if any)
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dom.tr(
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dom.td('From:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(
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style({width: '100%'}),
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dom.div(style({display: 'flex', justifyContent: 'space-between'}),
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dom.div(join((msgenv.From || []).map(a => formatAddressValidated(a, mi.Message, !!msgenv.From && msgenv.From.length === 1)), () => ', ')),
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dom.div(
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attr.title('Received: ' + received.toString() + ';\nDate header in message: ' + (msgenv.Date ? msgenv.Date.toString() : '(missing/invalid)')),
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receivedlocal.toDateString() + ' ' + receivedlocal.toTimeString().split(' ')[0],
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),
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)
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),
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),
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(msgenv.ReplyTo || []).length === 0 ? [] : dom.tr(
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dom.td('Reply-To:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(join((msgenv.ReplyTo || []).map(a => formatAddressElem(a)), () => ', ')),
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),
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dom.tr(
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dom.td('To:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(addressList(allAddrs, msgenv.To || [])),
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),
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(msgenv.CC || []).length === 0 ? [] : dom.tr(
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dom.td('Cc:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(addressList(allAddrs, msgenv.CC || [])),
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),
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(msgenv.BCC || []).length === 0 ? [] : dom.tr(
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dom.td('Bcc:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(addressList(allAddrs, msgenv.BCC || [])),
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),
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dom.tr(
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dom.td('Subject:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(
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dom.div(style({display: 'flex', justifyContent: 'space-between'}),
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dom.div(msgenv.Subject || ''),
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dom.div(
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mi.Message.IsForward ? dom.span(style({padding: '0px 0.15em', fontSize: '.9em'}), 'Forwarded', attr.title('Message came in from a forwarded address. Some message authentication policies, like DMARC, were not evaluated.')) : [],
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mi.Message.IsMailingList ? dom.span(style({padding: '0px 0.15em', fontSize: '.9em'}), 'Mailing list', attr.title('Message was received from a mailing list. Some message authentication policies, like DMARC, were not evaluated.')) : [],
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mi.Message.ReceivedTLSVersion === 1 ? dom.span(style({padding: '0px 0.15em', fontSize: '.9em', borderBottom: '1.5px solid #e15d1c'}), 'Without TLS', attr.title('Message received (last hop) without TLS.')) : [],
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mi.Message.ReceivedTLSVersion > 1 && !mi.Message.ReceivedRequireTLS ? dom.span(style({padding: '0px 0.15em', fontSize: '.9em', borderBottom: '1.5px solid #50c40f'}), 'With TLS', attr.title('Message received (last hop) with TLS.')) : [],
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mi.Message.ReceivedRequireTLS ? dom.span(style({padding: '.1em .3em', fontSize: '.9em', backgroundColor: '#d2f791', border: '1px solid #ccc', borderRadius: '3px'}), 'With RequireTLS', attr.title('Transported with RequireTLS, ensuring TLS along the entire delivery path from sender to recipient, with TLS certificate verification through MTA-STS and/or DANE.')) : [],
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mi.IsSigned ? dom.span(style({backgroundColor: '#666', padding: '0px 0.15em', fontSize: '.9em', color: 'white', borderRadius: '.15em'}), 'Message has a signature') : [],
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mi.IsEncrypted ? dom.span(style({backgroundColor: '#666', padding: '0px 0.15em', fontSize: '.9em', color: 'white', borderRadius: '.15em'}), 'Message is encrypted') : [],
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refineKeyword ? (mi.Message.Keywords || []).map(kw =>
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dom.clickbutton(dom._class('keyword'), kw, async function click() {
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await refineKeyword(kw)
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}),
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) : [],
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),
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)
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),
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),
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moreHeaders.map(k =>
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dom.tr(
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dom.td(k+':', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
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dom.td(),
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)
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),
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)
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}
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