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Code Issues Releases Wiki Activity

Resign url based on setInterval

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This commit is contained in:
Tim Daubenschütz 2016-02-22 17:38:02 +01:00
parent 23efaa368e
commit b2a21c5cc1
1 changed files with 32 additions and 17 deletions
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49
js/components/ascribe_buttons/s3_download_button.js
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@ -24,7 +24,8 @@ const S3DownloadButton = React.createClass({
getInitialState() {
return {
downloadUrl: null
downloadUrl: null,
signatureExpiryTimerId: null
};
},
@ -36,6 +37,36 @@ const S3DownloadButton = React.createClass({
this.signUrl();
},
componentWillUnmount() {
window.clearInterval(this.state.signatureExpiryTime);
},
componentDidUpdate() {
const { signatureExpiryTimerId, downloadUrl } = this.state;
if(!signatureExpiryTimerId && downloadUrl) {
/**
* The signed url, however can expire, which is why
* we need to renew it when it expires.
*/
const { downloadUrl } = this.state;
const expires = parseInt(queryParamsToArgs(downloadUrl.split('?')[1]).expires, 10);
const now = new Date().getTime() / 1000;
/**
* Amazon uses seconds as their signature unix timestamp
* while `setInterval` uses milliseconds. Therefore we need to
* multiply with 1000.
*/
const interval = (expires - now) * 1000;
this.setState({
// Substract 5s to make sure there is a big enough window to sign again before expiration
signatureExpiryTimerId: window.setInterval(this.signUrl, interval - 5000)
});
}
},
transformS3UrlToS3Key(url) {
return url.replace(`https://${AppConstants.cloudfrontDomain}/`, '');
},
@ -49,21 +80,6 @@ const S3DownloadButton = React.createClass({
.catch(console.logGlobal);
},
reSignUrl(event) {
/**
* The signed url, however can expire, which is why
* we need to renew it when it expires.
*/
const { downloadUrl } = this.state;
const { expires } = queryParamsToArgs(downloadUrl.split('?')[1]);
const nowInSeconds = new Date().getTime() / 1000;
if(nowInSeconds > expires) {
event.preventDefault();
this.signUrl(() => this.refs.downloadButton.getDOMNode().click());
}
},
render() {
const { fileExtension, url } = this.props;
const { downloadUrl } = this.state;
@ -74,7 +90,6 @@ const S3DownloadButton = React.createClass({
download
className="btn btn-xs btn-default ascribe-margin-1px"
target="_blank"
onClick={this.reSignUrl}
href={downloadUrl || url}>
{/*
If it turns out that `fileExtension` is an empty string, we're just