6061: Allow to use a Github Auth token for fetching releases r=matklad a=Matthias247

This change allows to use a authorization token provided by Github in
order to fetch metadata for a RA release. Using an authorization token
prevents to get rate-limited in environments where lots of RA users use
a shared client IP (e.g. behind a company NAT).

The auth token is stored in `ExtensionContext.globalState`.
As far as I could observe through testing with a local WSL2 environment
that state is synced between an extension installed locally and a remote
version.

The change provides no explicit command to query for an auth token.
However in case a download fails it will provide a retry option as well
as an option to enter the auth token. This should be more discoverable
for most users.

Closes #3688

Co-authored-by: Matthias Einwag <matthias.einwag@live.com>
This commit is contained in:
bors[bot] 2020-09-24 14:08:46 +00:00 committed by GitHub
commit de4fb13806
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4 changed files with 117 additions and 19 deletions

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@ -158,6 +158,11 @@
"title": "Restart server",
"category": "Rust Analyzer"
},
{
"command": "rust-analyzer.updateGithubToken",
"title": "Update Github API token",
"category": "Rust Analyzer"
},
{
"command": "rust-analyzer.onEnter",
"title": "Enhanced enter key",
@ -984,6 +989,10 @@
"command": "rust-analyzer.reload",
"when": "inRustProject"
},
{
"command": "rust-analyzer.updateGithubToken",
"when": "inRustProject"
},
{
"command": "rust-analyzer.onEnter",
"when": "inRustProject"

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@ -95,6 +95,10 @@ async function tryActivate(context: vscode.ExtensionContext) {
await activate(context).catch(log.error);
});
ctx.registerCommand('updateGithubToken', ctx => async () => {
await queryForGithubToken(new PersistentState(ctx.globalState));
});
ctx.registerCommand('analyzerStatus', commands.analyzerStatus);
ctx.registerCommand('memoryUsage', commands.memoryUsage);
ctx.registerCommand('reloadWorkspace', commands.reloadWorkspace);
@ -173,7 +177,9 @@ async function bootstrapExtension(config: Config, state: PersistentState): Promi
if (!shouldCheckForNewNightly) return;
}
const release = await fetchRelease("nightly").catch((e) => {
const release = await downloadWithRetryDialog(state, async () => {
return await fetchRelease("nightly", state.githubToken);
}).catch((e) => {
log.error(e);
if (state.releaseId === undefined) { // Show error only for the initial download
vscode.window.showErrorMessage(`Failed to download rust-analyzer nightly ${e}`);
@ -192,10 +198,14 @@ async function bootstrapExtension(config: Config, state: PersistentState): Promi
assert(!!artifact, `Bad release: ${JSON.stringify(release)}`);
const dest = path.join(config.globalStoragePath, "rust-analyzer.vsix");
await download({
url: artifact.browser_download_url,
dest,
progressTitle: "Downloading rust-analyzer extension",
await downloadWithRetryDialog(state, async () => {
await download({
url: artifact.browser_download_url,
dest,
progressTitle: "Downloading rust-analyzer extension",
overwrite: true,
});
});
await vscode.commands.executeCommand("workbench.extensions.installExtension", vscode.Uri.file(dest));
@ -308,21 +318,22 @@ async function getServer(config: Config, state: PersistentState): Promise<string
if (userResponse !== "Download now") return dest;
}
const release = await fetchRelease(config.package.releaseTag);
const releaseTag = config.package.releaseTag;
const release = await downloadWithRetryDialog(state, async () => {
return await fetchRelease(releaseTag, state.githubToken);
});
const artifact = release.assets.find(artifact => artifact.name === `rust-analyzer-${platform}.gz`);
assert(!!artifact, `Bad release: ${JSON.stringify(release)}`);
// Unlinking the exe file before moving new one on its place should prevent ETXTBSY error.
await fs.unlink(dest).catch(err => {
if (err.code !== "ENOENT") throw err;
});
await download({
url: artifact.browser_download_url,
dest,
progressTitle: "Downloading rust-analyzer server",
gunzip: true,
mode: 0o755
await downloadWithRetryDialog(state, async () => {
await download({
url: artifact.browser_download_url,
dest,
progressTitle: "Downloading rust-analyzer server",
gunzip: true,
mode: 0o755,
overwrite: true,
});
});
// Patching executable if that's NixOS.
@ -333,3 +344,56 @@ async function getServer(config: Config, state: PersistentState): Promise<string
await state.updateServerVersion(config.package.version);
return dest;
}
async function downloadWithRetryDialog<T>(state: PersistentState, downloadFunc: () => Promise<T>): Promise<T> {
while (true) {
try {
return await downloadFunc();
} catch (e) {
const selected = await vscode.window.showErrorMessage("Failed to download: " + e.message, {}, {
title: "Update Github Auth Token",
updateToken: true,
}, {
title: "Retry download",
retry: true,
}, {
title: "Dismiss",
});
if (selected?.updateToken) {
await queryForGithubToken(state);
continue;
} else if (selected?.retry) {
continue;
}
throw e;
};
}
}
async function queryForGithubToken(state: PersistentState): Promise<void> {
const githubTokenOptions: vscode.InputBoxOptions = {
value: state.githubToken,
password: true,
prompt: `
This dialog allows to store a Github authorization token.
The usage of an authorization token will increase the rate
limit on the use of Github APIs and can thereby prevent getting
throttled.
Auth tokens can be created at https://github.com/settings/tokens`,
};
const newToken = await vscode.window.showInputBox(githubTokenOptions);
if (newToken === undefined) {
// The user aborted the dialog => Do not update the stored token
return;
}
if (newToken === "") {
log.info("Clearing github token");
await state.updateGithubToken(undefined);
} else {
log.info("Storing new github token");
await state.updateGithubToken(newToken);
}
}

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@ -18,7 +18,8 @@ const OWNER = "rust-analyzer";
const REPO = "rust-analyzer";
export async function fetchRelease(
releaseTag: string
releaseTag: string,
githubToken: string | null | undefined,
): Promise<GithubRelease> {
const apiEndpointPath = `/repos/${OWNER}/${REPO}/releases/tags/${releaseTag}`;
@ -27,7 +28,12 @@ export async function fetchRelease(
log.debug("Issuing request for released artifacts metadata to", requestUrl);
const response = await fetch(requestUrl, { headers: { Accept: "application/vnd.github.v3+json" } });
const headers: Record<string, string> = { Accept: "application/vnd.github.v3+json" };
if (githubToken != null) {
headers.Authorization = "token " + githubToken;
}
const response = await fetch(requestUrl, { headers: headers });
if (!response.ok) {
log.error("Error fetching artifact release info", {
@ -70,6 +76,7 @@ interface DownloadOpts {
dest: string;
mode?: number;
gunzip?: boolean;
overwrite?: boolean;
}
export async function download(opts: DownloadOpts) {
@ -79,6 +86,13 @@ export async function download(opts: DownloadOpts) {
const randomHex = crypto.randomBytes(5).toString("hex");
const tempFile = path.join(dest.dir, `${dest.name}${randomHex}`);
if (opts.overwrite) {
// Unlinking the exe file before moving new one on its place should prevent ETXTBSY error.
await fs.promises.unlink(opts.dest).catch(err => {
if (err.code !== "ENOENT") throw err;
});
}
await vscode.window.withProgress(
{
location: vscode.ProgressLocation.Notification,

View File

@ -38,4 +38,15 @@ export class PersistentState {
async updateServerVersion(value: string | undefined) {
await this.globalState.update("serverVersion", value);
}
/**
* Github authorization token.
* This is used for API requests against the Github API.
*/
get githubToken(): string | undefined {
return this.globalState.get("githubToken");
}
async updateGithubToken(value: string | undefined) {
await this.globalState.update("githubToken", value);
}
}