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Download Helm from redirect url. #7805

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merged 5 commits into from
Jul 26, 2018
Merged

Download Helm from redirect url. #7805

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e7f6216
Download Helm from redirect url.
vithati Jul 23, 2018
068eb90
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vithati Jul 24, 2018
0c108ea
Addressed comments.
vithati Jul 26, 2018
e321022
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vithati Jul 26, 2018
75498fd
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vithati Jul 26, 2018
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50 changes: 43 additions & 7 deletions Tasks/Common/utility-common/downloadutility.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,13 +2,45 @@

var https = require('https');
var fs = require('fs');
var url = require('url');
import * as tl from "vsts-task-lib/task";

export async function download(url: any, downloadPath: string, printData: boolean): Promise<void> {
function isDownloadSucceeded(response: any): boolean {
return response.statusCode >= 200 && response.statusCode < 300;
}

function isRedirect(response: any): boolean {
return response.statusCode >= 300
&& response.statusCode < 400
&& response.headers
&& response.headers.location;
}

function getRedirectOptions(options: any, redirectUrl: string): any {
tl.debug("redirect url: " + redirectUrl);
if (typeof options === 'string') {
options = redirectUrl;
}
else {
try {
var redirectUrlOptions = url.parse(redirectUrl);
options.path = redirectUrlOptions.path;
options.hostname = redirectUrlOptions.hostname;
}
catch(error) {
tl.warning("Unable to parse url:" + redirectUrl);
options = redirectUrl;
}
}

return options;
}

export async function download(options: any, downloadPath: string, printData: boolean, handleRedirect: boolean = true): Promise<void> {
var file = fs.createWriteStream(downloadPath);
var body = ''
return new Promise<void>((resolve, reject) => {
var req = https.request(url, res => {
var req = https.request(options, res => {
tl.debug("statusCode: " + res.statusCode);
res.pipe(file);
res.on("error", err => reject(err));
Expand All @@ -20,14 +52,18 @@ export async function download(url: any, downloadPath: string, printData: boolea
tl.debug(body);
}

if(res.statusCode < 200 || res.statusCode >= 300) {
tl.debug("File download failed");
reject(new Error('Failed to download file status code: ' + res.statusCode));
}
else {
if (isDownloadSucceeded(res)) {
tl.debug("File download completed");
resolve();
}
else if (isRedirect(res) && handleRedirect) {
var redirectOptions = getRedirectOptions(options, res.headers.location);
resolve(this.download(redirectOptions, downloadPath, printData, false));
}
else {
tl.debug("File download failed");
reject(new Error('Failed to download file status code: ' + res.statusCode));
}
});
});
req.on("error", err => {
Expand Down
2 changes: 1 addition & 1 deletion Tasks/HelmInstallerV0/task.json
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
"version": {
"Major": 0,
"Minor": 1,
"Patch": 5
"Patch": 6
},
"demands": [],
"satisfies": ["Helm"],
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2 changes: 1 addition & 1 deletion Tasks/HelmInstallerV0/task.loc.json
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
"version": {
"Major": 0,
"Minor": 1,
"Patch": 5
"Patch": 6
},
"demands": [],
"satisfies": [
Expand Down