mox/webmail/lib.ts
Mechiel Lukkien d07c871f5c
webmail: better recognize URLs in text wrapped in () or <> if it follows interpunction
e.g. "text... (https://localhost)." would keep ) as part of the url before, but not anymore.
2023-09-21 11:09:27 +02:00

394 lines
17 KiB
TypeScript
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// Javascript is generated from typescript, do not modify generated javascript because changes will be overwritten.
type ElemArg = string | Element | Function | {_class: string[]} | {_attrs: {[k: string]: string}} | {_styles: {[k: string]: string | number}} | {_props: {[k: string]: any}} | {root: HTMLElement} | ElemArg[]
const [dom, style, attr, prop] = (function() {
// Start of unicode block (rough approximation of script), from https://www.unicode.org/Public/UNIDATA/Blocks.txt
const scriptblocks = [0x0000, 0x0080, 0x0100, 0x0180, 0x0250, 0x02B0, 0x0300, 0x0370, 0x0400, 0x0500, 0x0530, 0x0590, 0x0600, 0x0700, 0x0750, 0x0780, 0x07C0, 0x0800, 0x0840, 0x0860, 0x0870, 0x08A0, 0x0900, 0x0980, 0x0A00, 0x0A80, 0x0B00, 0x0B80, 0x0C00, 0x0C80, 0x0D00, 0x0D80, 0x0E00, 0x0E80, 0x0F00, 0x1000, 0x10A0, 0x1100, 0x1200, 0x1380, 0x13A0, 0x1400, 0x1680, 0x16A0, 0x1700, 0x1720, 0x1740, 0x1760, 0x1780, 0x1800, 0x18B0, 0x1900, 0x1950, 0x1980, 0x19E0, 0x1A00, 0x1A20, 0x1AB0, 0x1B00, 0x1B80, 0x1BC0, 0x1C00, 0x1C50, 0x1C80, 0x1C90, 0x1CC0, 0x1CD0, 0x1D00, 0x1D80, 0x1DC0, 0x1E00, 0x1F00, 0x2000, 0x2070, 0x20A0, 0x20D0, 0x2100, 0x2150, 0x2190, 0x2200, 0x2300, 0x2400, 0x2440, 0x2460, 0x2500, 0x2580, 0x25A0, 0x2600, 0x2700, 0x27C0, 0x27F0, 0x2800, 0x2900, 0x2980, 0x2A00, 0x2B00, 0x2C00, 0x2C60, 0x2C80, 0x2D00, 0x2D30, 0x2D80, 0x2DE0, 0x2E00, 0x2E80, 0x2F00, 0x2FF0, 0x3000, 0x3040, 0x30A0, 0x3100, 0x3130, 0x3190, 0x31A0, 0x31C0, 0x31F0, 0x3200, 0x3300, 0x3400, 0x4DC0, 0x4E00, 0xA000, 0xA490, 0xA4D0, 0xA500, 0xA640, 0xA6A0, 0xA700, 0xA720, 0xA800, 0xA830, 0xA840, 0xA880, 0xA8E0, 0xA900, 0xA930, 0xA960, 0xA980, 0xA9E0, 0xAA00, 0xAA60, 0xAA80, 0xAAE0, 0xAB00, 0xAB30, 0xAB70, 0xABC0, 0xAC00, 0xD7B0, 0xD800, 0xDB80, 0xDC00, 0xE000, 0xF900, 0xFB00, 0xFB50, 0xFE00, 0xFE10, 0xFE20, 0xFE30, 0xFE50, 0xFE70, 0xFF00, 0xFFF0, 0x10000, 0x10080, 0x10100, 0x10140, 0x10190, 0x101D0, 0x10280, 0x102A0, 0x102E0, 0x10300, 0x10330, 0x10350, 0x10380, 0x103A0, 0x10400, 0x10450, 0x10480, 0x104B0, 0x10500, 0x10530, 0x10570, 0x10600, 0x10780, 0x10800, 0x10840, 0x10860, 0x10880, 0x108E0, 0x10900, 0x10920, 0x10980, 0x109A0, 0x10A00, 0x10A60, 0x10A80, 0x10AC0, 0x10B00, 0x10B40, 0x10B60, 0x10B80, 0x10C00, 0x10C80, 0x10D00, 0x10E60, 0x10E80, 0x10EC0, 0x10F00, 0x10F30, 0x10F70, 0x10FB0, 0x10FE0, 0x11000, 0x11080, 0x110D0, 0x11100, 0x11150, 0x11180, 0x111E0, 0x11200, 0x11280, 0x112B0, 0x11300, 0x11400, 0x11480, 0x11580, 0x11600, 0x11660, 0x11680, 0x11700, 0x11800, 0x118A0, 0x11900, 0x119A0, 0x11A00, 0x11A50, 0x11AB0, 0x11AC0, 0x11B00, 0x11C00, 0x11C70, 0x11D00, 0x11D60, 0x11EE0, 0x11F00, 0x11FB0, 0x11FC0, 0x12000, 0x12400, 0x12480, 0x12F90, 0x13000, 0x13430, 0x14400, 0x16800, 0x16A40, 0x16A70, 0x16AD0, 0x16B00, 0x16E40, 0x16F00, 0x16FE0, 0x17000, 0x18800, 0x18B00, 0x18D00, 0x1AFF0, 0x1B000, 0x1B100, 0x1B130, 0x1B170, 0x1BC00, 0x1BCA0, 0x1CF00, 0x1D000, 0x1D100, 0x1D200, 0x1D2C0, 0x1D2E0, 0x1D300, 0x1D360, 0x1D400, 0x1D800, 0x1DF00, 0x1E000, 0x1E030, 0x1E100, 0x1E290, 0x1E2C0, 0x1E4D0, 0x1E7E0, 0x1E800, 0x1E900, 0x1EC70, 0x1ED00, 0x1EE00, 0x1F000, 0x1F030, 0x1F0A0, 0x1F100, 0x1F200, 0x1F300, 0x1F600, 0x1F650, 0x1F680, 0x1F700, 0x1F780, 0x1F800, 0x1F900, 0x1FA00, 0x1FA70, 0x1FB00, 0x20000, 0x2A700, 0x2B740, 0x2B820, 0x2CEB0, 0x2F800, 0x30000, 0x31350, 0xE0000, 0xE0100, 0xF0000, 0x100000]
// Find block code belongs in.
const findBlock = (code: number): number => {
let s = 0
let e = scriptblocks.length
while (s < e-1) {
let i = Math.floor((s+e)/2)
if (code < scriptblocks[i]) {
e = i
} else {
s = i
}
}
return s
}
// formatText adds s to element e, in a way that makes switching unicode scripts
// clear, with alternating DOM TextNode and span elements with a "switchscript"
// class. Useful for highlighting look alikes, e.g. a (ascii 0x61) and а (cyrillic
// 0x430).
//
// This is only called one string at a time, so the UI can still display strings
// without highlighting switching scripts, by calling formatText on the parts.
const formatText = (e: HTMLElement, s: string): void => {
// Handle some common cases quickly.
if (!s) {
return
}
let ascii = true
for (const c of s) {
const cp = c.codePointAt(0) // For typescript, to check for undefined.
if (cp !== undefined && cp >= 0x0080) {
ascii = false
break
}
}
if (ascii) {
e.appendChild(document.createTextNode(s))
return
}
// todo: handle grapheme clusters? wait for Intl.Segmenter?
let n = 0 // Number of text/span parts added.
let str = '' // Collected so far.
let block = -1 // Previous block/script.
let mod = 1
const put = (nextblock: number) => {
if (n === 0 && nextblock === 0) {
// Start was non-ascii, second block is ascii, we'll start marked as switched.
mod = 0
}
if (n % 2 === mod) {
const x = document.createElement('span')
x.classList.add('scriptswitch')
x.appendChild(document.createTextNode(str))
e.appendChild(x)
} else {
e.appendChild(document.createTextNode(str))
}
n++
str = ''
}
for (const c of s) {
// Basic whitespace does not switch blocks. Will probably need to extend with more
// punctuation in the future. Possibly for digits too. But perhaps not in all
// scripts.
if (c === ' ' || c === '\t' || c === '\r' || c === '\n') {
str += c
continue
}
const code: number = c.codePointAt(0) as number
if (block < 0 || !(code >= scriptblocks[block] && (code < scriptblocks[block+1] || block === scriptblocks.length-1))) {
const nextblock = code < 0x0080 ? 0 : findBlock(code)
if (block >= 0) {
put(nextblock)
}
block = nextblock
}
str += c
}
put(-1)
}
const _domKids = <T extends HTMLElement>(e: T, l: ElemArg[]): T => {
l.forEach((c) => {
const xc = c as {[k: string]: any}
if (typeof c === 'string') {
formatText(e, c)
} else if (c instanceof Element) {
e.appendChild(c)
} else if (c instanceof Function) {
if (!c.name) {
throw new Error('function without name')
}
e.addEventListener(c.name as string, c as EventListener)
} else if (Array.isArray(xc)) {
_domKids(e, c as ElemArg[])
} else if (xc._class) {
for (const s of xc._class) {
e.classList.toggle(s, true)
}
} else if (xc._attrs) {
for (const k in xc._attrs) {
e.setAttribute(k, xc._attrs[k])
}
} else if (xc._styles) {
for (const k in xc._styles) {
const estyle: {[k: string]: any} = e.style
estyle[k as string] = xc._styles[k]
}
} else if (xc._props) {
for (const k in xc._props) {
const eprops: {[k: string]: any} = e
eprops[k] = xc._props[k]
}
} else if (xc.root) {
e.appendChild(xc.root)
} else {
console.log('bad kid', c)
throw new Error('bad kid')
}
})
return e
}
const dom = {
_kids: function(e: HTMLElement, ...kl: ElemArg[]) {
while(e.firstChild) {
e.removeChild(e.firstChild)
}
_domKids(e, kl)
},
_attrs: (x: {[k: string]: string}) => { return {_attrs: x}},
_class: (...x: string[]) => { return {_class: x}},
// The createElement calls are spelled out so typescript can derive function
// signatures with a specific HTML*Element return type.
div: (...l: ElemArg[]) => _domKids(document.createElement('div'), l),
span: (...l: ElemArg[]) => _domKids(document.createElement('span'), l),
a: (...l: ElemArg[]) => _domKids(document.createElement('a'), l),
input: (...l: ElemArg[]) => _domKids(document.createElement('input'), l),
textarea: (...l: ElemArg[]) => _domKids(document.createElement('textarea'), l),
select: (...l: ElemArg[]) => _domKids(document.createElement('select'), l),
option: (...l: ElemArg[]) => _domKids(document.createElement('option'), l),
clickbutton: (...l: ElemArg[]) => _domKids(document.createElement('button'), [attr.type('button'), ...l]),
submitbutton: (...l: ElemArg[]) => _domKids(document.createElement('button'), [attr.type('submit'), ...l]),
form: (...l: ElemArg[]) => _domKids(document.createElement('form'), l),
fieldset: (...l: ElemArg[]) => _domKids(document.createElement('fieldset'), l),
table: (...l: ElemArg[]) => _domKids(document.createElement('table'), l),
thead: (...l: ElemArg[]) => _domKids(document.createElement('thead'), l),
tbody: (...l: ElemArg[]) => _domKids(document.createElement('tbody'), l),
tr: (...l: ElemArg[]) => _domKids(document.createElement('tr'), l),
td: (...l: ElemArg[]) => _domKids(document.createElement('td'), l),
th: (...l: ElemArg[]) => _domKids(document.createElement('th'), l),
datalist: (...l: ElemArg[]) => _domKids(document.createElement('datalist'), l),
h1: (...l: ElemArg[]) => _domKids(document.createElement('h1'), l),
h2: (...l: ElemArg[]) => _domKids(document.createElement('h2'), l),
br: (...l: ElemArg[]) => _domKids(document.createElement('br'), l),
hr: (...l: ElemArg[]) => _domKids(document.createElement('hr'), l),
pre: (...l: ElemArg[]) => _domKids(document.createElement('pre'), l),
label: (...l: ElemArg[]) => _domKids(document.createElement('label'), l),
ul: (...l: ElemArg[]) => _domKids(document.createElement('ul'), l),
li: (...l: ElemArg[]) => _domKids(document.createElement('li'), l),
iframe: (...l: ElemArg[]) => _domKids(document.createElement('iframe'), l),
b: (...l: ElemArg[]) => _domKids(document.createElement('b'), l),
img: (...l: ElemArg[]) => _domKids(document.createElement('img'), l),
style: (...l: ElemArg[]) => _domKids(document.createElement('style'), l),
search: (...l: ElemArg[]) => _domKids(document.createElement('search'), l),
}
const _attr = (k: string, v: string) => { const o: {[key: string]: string} = {}; o[k] = v; return {_attrs: o} }
const attr = {
title: (s: string) => _attr('title', s),
value: (s: string) => _attr('value', s),
type: (s: string) => _attr('type', s),
tabindex: (s: string) => _attr('tabindex', s),
src: (s: string) => _attr('src', s),
placeholder: (s: string) => _attr('placeholder', s),
href: (s: string) => _attr('href', s),
checked: (s: string) => _attr('checked', s),
selected: (s: string) => _attr('selected', s),
id: (s: string) => _attr('id', s),
datalist: (s: string) => _attr('datalist', s),
rows: (s: string) => _attr('rows', s),
target: (s: string) => _attr('target', s),
rel: (s: string) => _attr('rel', s),
required: (s: string) => _attr('required', s),
multiple: (s: string) => _attr('multiple', s),
download: (s: string) => _attr('download', s),
disabled: (s: string) => _attr('disabled', s),
draggable: (s: string) => _attr('draggable', s),
rowspan: (s: string) => _attr('rowspan', s),
colspan: (s: string) => _attr('colspan', s),
for: (s: string) => _attr('for', s),
role: (s: string) => _attr('role', s),
arialabel: (s: string) => _attr('aria-label', s),
arialive: (s: string) => _attr('aria-live', s),
name: (s: string) => _attr('name', s)
}
const style = (x: {[k: string]: string | number}) => { return {_styles: x}}
const prop = (x: {[k: string]: any}) => { return {_props: x}}
return [dom, style, attr, prop]
})()
// join elements in l with the results of calls to efn. efn can return
// HTMLElements, which cannot be inserted into the dom multiple times, hence the
// function.
const join = (l: any, efn: () => any): any[] => {
const r: any[] = []
const n = l.length
for (let i = 0; i < n; i++) {
r.push(l[i])
if (i < n-1) {
r.push(efn())
}
}
return r
}
// addLinks turns a line of text into alternating strings and links. Links that
// would end with interpunction followed by whitespace are returned with that
// interpunction moved to the next string instead.
const addLinks = (text: string): (HTMLAnchorElement | string)[] => {
// todo: look at ../rfc/3986 and fix up regexp. we should probably accept utf-8.
const re = RegExp('(http|https):\/\/([:%0-9a-zA-Z._~!$&\'/()*+,;=-]+@)?([\\[\\]0-9a-zA-Z.-]+)(:[0-9]+)?([:@%0-9a-zA-Z._~!$&\'/()*+,;=-]*)(\\?[:@%0-9a-zA-Z._~!$&\'/()*+,;=?-]*)?(#[:@%0-9a-zA-Z._~!$&\'/()*+,;=?-]*)?')
const r = []
while (text.length > 0) {
const l = re.exec(text)
if (!l) {
r.push(text)
break
}
let s = text.substring(0, l.index)
let url = l[0]
text = text.substring(l.index+url.length)
r.push(s)
// If URL ends with interpunction, and next character is whitespace or end, don't
// include the interpunction in the URL.
if (!text || /^[ \t\r\n]/.test(text)) {
if (/[)>][!,.:;?]$/.test(url)) {
text = url.substring(url.length-2)+text
url = url.substring(0, url.length-2)
} else if (/[)>!,.:;?]$/.test(url)) {
text = url.substring(url.length-1)+text
url = url.substring(0, url.length-1)
}
}
r.push(dom.a(url, attr.href(url), attr.target('_blank'), attr.rel('noopener noreferrer')))
}
return r
}
// renderText turns text into a renderable element with ">" interpreted as quoted
// text (with different levels), and URLs replaced by links.
const renderText = (text: string): HTMLElement => {
return dom.div(text.split('\n').map(line => {
let q = 0
for (const c of line) {
if (c == '>') {
q++
} else if (c !== ' ') {
break
}
}
if (q == 0) {
return [addLinks(line), '\n']
}
q = (q-1)%3 + 1
return dom.div(dom._class('quoted'+q), addLinks(line))
}))
}
const displayName = (s: string) => {
// ../rfc/5322:1216
// ../rfc/5322:1270
// todo: need support for group addresses (eg "undisclosed recipients").
// ../rfc/5322:697
const specials = /[()<>\[\]:;@\\,."]/
if (specials.test(s)) {
return '"' + s.replace('\\', '\\\\').replace('"', '\\"') + '"'
}
return s
}
// format an address with both name and email address.
const formatAddress = (a: api.MessageAddress): string => {
let s = '<' + a.User + '@' + a.Domain.ASCII + '>'
if (a.Name) {
s = displayName(a.Name) + ' ' + s
}
return s
}
// returns an address with all available details, including unicode version if
// available.
const formatAddressFull = (a: api.MessageAddress): string => {
let s = ''
if (a.Name) {
s = a.Name + ' '
}
s += '<' + a.User + '@' + a.Domain.ASCII + '>'
if (a.Domain.Unicode) {
s += ' (' + a.User + '@' + a.Domain.Unicode + ')'
}
return s
}
// format just the name, or otherwies just the email address.
const formatAddressShort = (a: api.MessageAddress): string => {
if (a.Name) {
return a.Name
}
return '<' + a.User + '@' + a.Domain.ASCII + '>'
}
// return just the email address.
const formatEmailASCII = (a: api.MessageAddress): string => {
return a.User + '@' + a.Domain.ASCII
}
const equalAddress = (a: api.MessageAddress, b: api.MessageAddress) => {
return (!a.User || !b.User || a.User === b.User) && a.Domain.ASCII === b.Domain.ASCII
}
// loadMsgheaderView loads the common message headers into msgheaderelem.
// if refineKeyword is set, labels are shown and a click causes a call to
// refineKeyword.
const loadMsgheaderView = (msgheaderelem: HTMLElement, mi: api.MessageItem, moreHeaders: string[], refineKeyword: null | ((kw: string) => Promise<void>)) => {
const msgenv = mi.Envelope
const received = mi.Message.Received
const receivedlocal = new Date(received.getTime() - received.getTimezoneOffset()*60*1000)
dom._kids(msgheaderelem,
// todo: make addresses clickable, start search (keep current mailbox if any)
dom.tr(
dom.td('From:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(
style({width: '100%'}),
dom.div(style({display: 'flex', justifyContent: 'space-between'}),
dom.div(join((msgenv.From || []).map(a => formatAddressFull(a)), () => ', ')),
dom.div(
attr.title('Received: ' + received.toString() + ';\nDate header in message: ' + (msgenv.Date ? msgenv.Date.toString() : '(missing/invalid)')),
receivedlocal.toDateString() + ' ' + receivedlocal.toTimeString().split(' ')[0],
),
)
),
),
(msgenv.ReplyTo || []).length === 0 ? [] : dom.tr(
dom.td('Reply-To:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(join((msgenv.ReplyTo || []).map(a => formatAddressFull(a)), () => ', ')),
),
dom.tr(
dom.td('To:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(join((msgenv.To || []).map(a => formatAddressFull(a)), () => ', ')),
),
(msgenv.CC || []).length === 0 ? [] : dom.tr(
dom.td('Cc:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(join((msgenv.CC || []).map(a => formatAddressFull(a)), () => ', ')),
),
(msgenv.BCC || []).length === 0 ? [] : dom.tr(
dom.td('Bcc:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(join((msgenv.BCC || []).map(a => formatAddressFull(a)), () => ', ')),
),
dom.tr(
dom.td('Subject:', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(
dom.div(style({display: 'flex', justifyContent: 'space-between'}),
dom.div(msgenv.Subject || ''),
dom.div(
mi.IsSigned ? dom.span(style({backgroundColor: '#666', padding: '0px 0.15em', fontSize: '.9em', color: 'white', borderRadius: '.15em'}), 'Message has a signature') : [],
mi.IsEncrypted ? dom.span(style({backgroundColor: '#666', padding: '0px 0.15em', fontSize: '.9em', color: 'white', borderRadius: '.15em'}), 'Message is encrypted') : [],
refineKeyword ? (mi.Message.Keywords || []).map(kw =>
dom.clickbutton(dom._class('keyword'), kw, async function click() {
await refineKeyword(kw)
}),
) : [],
),
)
),
),
moreHeaders.map(k =>
dom.tr(
dom.td(k+':', style({textAlign: 'right', color: '#555', whiteSpace: 'nowrap'})),
dom.td(),
)
),
)
}