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board now uses sha256

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This commit is contained in:
Kevin Froman 2019-09-27 18:04:49 -05:00
parent 24d682860f
commit 71c9337ab7
6 changed files with 16 additions and 8 deletions
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4
static-data/www/board/board.js
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@ -97,7 +97,9 @@ function appendMessages(msg, blockHash, beforeHash){
div[3].textContent = msg['meta']['signer'].substr(0, 5)
setHumanReadableIDOnPost(div[3], msg['meta']['signer'])
div[3].title = msg['meta']['signer']
identicon[0].src = "data:image/svg+xml;base64," + userIcon(msg['meta']['signer'])
userIcon(msg['meta']['signer']).then(function(data){
identicon[0].src = "data:image/svg+xml;base64," + data
})
}
else{
identicon[0].remove()

9
static-data/www/shared/useridenticons.js
View file

@ -7,8 +7,13 @@ function toHexString(byteArray) {
return s;
}
function userIcon(pubkey, imgSize=64){
pubkey = toHexString(base32.decode.asBytes(pubkey))
async function sha256(str) {
const buf = await crypto.subtle.digest("SHA-256", new TextEncoder("utf-8").encode(str));
return Array.prototype.map.call(new Uint8Array(buf), x=>(('00'+x.toString(16)).slice(-2))).join('');
}
async function userIcon(pubkey, imgSize=64){
pubkey = await sha256(base32.decode.asBytes(pubkey))
let options = {
//foreground: [0,0,0,1], // rgba black
background: [255, 255, 255, 255], // rgba white