(rl => {
window.identiconSvg = (hash, txt, font) => {
// color defaults to last 7 chars as hue at 70% saturation, 50% brightness
// hsl2rgb adapted from: https://gist.github.com/aemkei/1325937
let h = (parseInt(hash.substr(-7), 16) / 0xfffffff) * 6, s = 0.7, l = 0.5,
v = [
l += s *= l < .5 ? l : 1 - l,
l - h % 1 * s * 2,
l -= s *= 2,
l,
l + h % 1 * s,
l + s
],
m = txt ? 128 : 200,
color = 'rgb(' + [
v[ ~~h % 6 ] * m, // red
v[ (h | 16) % 6 ] * m, // green
v[ (h | 8) % 6 ] * m // blue
].map(Math.round).join(',') + ')';
if (txt) {
return ``;
}
return ``;
};
const
size = 50,
getEl = id => document.getElementById(id),
queue = [],
avatars = new Map,
ncAvatars = new Map,
identicons = new Map,
templateId = 'MailMessageView',
b64 = data => btoa(unescape(encodeURIComponent(data))),
b64url = data => b64(data).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, ''),
getBimiSelector = msg => {
// Get 's' value out of 'v=BIMI1; s=foo;'
let bimiSelector = msg.headers().valueByName('BIMI-Selector');
bimiSelector = bimiSelector ? bimiSelector.match(/;.*s=([^\s;]+)/)[1] : '';
return bimiSelector || '';
},
getBimiId = msg => ('pass' == msg.from[0].dkimStatus ? 1 : 0) + '-' + getBimiSelector(msg),
email = msg => msg.from[0].email.toLowerCase(),
getAvatarUid = msg => `${getBimiId(msg)}/${email(msg)}`,
getAvatar = msg => ncAvatars.get(email(msg)) || avatars.get(getAvatarUid(msg)),
getAvatarUri = msg => {
if ('remote' === msg.avatar) {
msg.avatar = `?Avatar/${getBimiId(msg)}/${b64url(email(msg))}`;
}
/*
else if (!msg.avatar.startsWith('data:')) {
msg.avatar = null;
}
*/
return msg.avatar;
},
hash = async txt => {
if (/^[0-9a-f]{15,}$/i.test(txt)) {
return txt;
}
const hashArray = Array.from(new Uint8Array(
// await crypto.subtle.digest('SHA-256', (new TextEncoder()).encode(txt.toLowerCase()))
await crypto.subtle.digest('SHA-1', (new TextEncoder()).encode(txt.toLowerCase()))
));
return hashArray.map(b => b.toString(16).padStart(2, '0')).join(''); // convert bytes to hex string
},
fromChars = from =>
// (from.name?.split(/[^\p{Lu}]+/gu) || []).reduce((a, s) => a + (s || '')), '')
(from.name?.split(/[^\p{L}]+/gu) || []).reduce((a, s) => a + (s[0] || ''), '')
.slice(0,2)
.toUpperCase(),
setIdenticon = (msg, fn, cb) => {
const from = email(msg);
if (identicons.get(from)) {
fn(identicons.get(from));
} else {
hash(from).then(hash => {
const uri = 'data:image/svg+xml;base64,' + b64(window.identiconSvg(
hash,
fromChars(msg.from[0]),
window.getComputedStyle(getEl('rl-app'), null).getPropertyValue('font-family')
));
fn(uri);
identicons.set(email(msg), uri);
cb?.(uri);
});
}
},
addQueue = (msg, fn) => {
if (msg.from?.[0]) {
if (getAvatarUri(msg)) {
if (rl.pluginSettingsGet('avatars', 'delay')) {
setIdenticon(msg, fn, ()=>{
queue.push([msg, fn]);
runQueue();
});
} else {
fn(msg.avatar);
}
} else {
setIdenticon(msg, fn);
}
}
},
runQueue = (() => {
let item = queue.shift();
while (item) {
let url = getAvatar(item[0]);
if (url) {
item[1](url);
item = queue.shift();
continue;
} else if (item[0].avatar) {
item[1](item[0].avatar);
}
runQueue();
break;
}
}).debounce(1000);
/**
* Modify templates
*/
getEl('MailMessageList').content.querySelectorAll('.messageCheckbox')
.forEach(el => el.append(Element.fromHTML(`![]()
`)));
const messageItemHeader = getEl(templateId).content.querySelector('.messageItemHeader');
if (messageItemHeader) {
messageItemHeader.prepend(Element.fromHTML(
`![]()
`
));
}
/**
* Loads images from Nextcloud contacts
*/
// rl.pluginSettingsGet('avatars', 'nextcloud');
if (parent.OC?.requestToken) {
const OC = parent.OC,
nsDAV = 'DAV:',
nsNC = 'http://nextcloud.com/ns',
nsCard = 'urn:ietf:params:xml:ns:carddav',
getElementsByTagName = (parent, namespace, localName) => parent.getElementsByTagNameNS(namespace, localName),
getElementValue = (parent, namespace, localName) =>
getElementsByTagName(parent, namespace, localName)?.item(0)?.textContent;
fetch(`${OC.webroot}/remote.php/dav/addressbooks/users/${OC.currentUser}/contacts/`, {
mode: 'same-origin',
cache: 'no-cache',
redirect: 'error',
credentials: 'same-origin',
method: 'REPORT',
headers: {
requesttoken: OC.requestToken,
'Content-Type': 'application/xml; charset=utf-8',
Depth: 1
},
body: ''
})
.then(response => (response.status < 400) ? response.text() : Promise.reject(new Error({ response })))
.then(text => {
const
xmlParser = new DOMParser(),
responseList = getElementsByTagName(
xmlParser.parseFromString(text, 'application/xml').documentElement,
nsDAV,
'response');
for (let i = 0; i < responseList.length; ++i) {
const item = responseList.item(i);
if (1 == getElementValue(item, nsNC, 'has-photo')) {
[...getElementValue(item, nsCard, 'address-data').matchAll(/EMAIL.*?:([^@\r\n]+@[^@\r\n]+)/g)]
.forEach(match => {
ncAvatars.set(
match[1].toLowerCase(),
getElementValue(item, nsDAV, 'href') + '?photo'
);
});
}
}
});
}
// });
/**
* Used by MailMessageList
*/
ko.bindingHandlers.fromPic = {
init: (element, self, dummy, msg) => {
try {
if (msg?.from?.[0]) {
let url = getAvatar(msg),
fn = url=>{element.src = url};
element.onerror = ()=>{
element.onerror = null;
setIdenticon(msg, fn, uri=>avatars.set(getAvatarUid(msg), uri));
};
if (url) {
fn(url);
} else if (msg.avatar?.startsWith('data:')) {
fn(msg.avatar);
} else {
element.onload = ()=>{
if (!element.src.startsWith('data:')) {
element.onload = null;
avatars.set(getAvatarUid(msg), element.src);
}
};
addQueue(msg, fn);
}
}
} catch (e) {
console.error(e);
}
}
};
addEventListener('rl-view-model.create', e => {
if (templateId === e.detail.viewModelTemplateID) {
let view = e.detail;
view.viewUserPic = ko.observable('');
view.viewUserPicVisible = ko.observable(false);
view.message.subscribe(msg => {
view.viewUserPicVisible(false);
if (msg) {
let url = msg.from?.[0] ? getAvatar(msg) : 0,
fn = url => {
view.viewUserPic(url);
view.viewUserPicVisible(true);
};
if (url) {
fn(url);
} else if (msg.avatar) {
fn(getAvatarUri(msg));
} else {
addQueue(msg, fn);
}
}
});
}
});
})(window.rl);