Fix some unescaped regex strings (#6979)

Author: alexr00

src/github/utils.ts

@@ -19,7 +19,7 @@ import { Resource } from '../common/resources';
 import { GITHUB_ENTERPRISE, OVERRIDE_DEFAULT_BRANCH, PR_SETTINGS_NAMESPACE, URI } from '../common/settingKeys';
 import * as Common from '../common/timelineEvent';
 import { DataUri, toOpenIssueWebviewUri, toOpenPullRequestWebviewUri } from '../common/uri';
-import { gitHubLabelColor, stringReplaceAsync, uniqBy } from '../common/utils';
+import { escapeRegExp, gitHubLabelColor, stringReplaceAsync, uniqBy } from '../common/utils';
 import { OctokitCommon } from './common';
 import { FolderRepositoryManager, PullRequestDefaults } from './folderRepositoryManager';
 import { GitHubRepository, ViewerPermission } from './githubRepository';
@@ -309,7 +309,7 @@ export function convertRESTHeadToIGitHubRef(head: OctokitCommon.PullsListRespons
 
 async function transformHtmlUrlsToExtensionUrls(body: string, githubRepository: GitHubRepository): Promise<string> {
 	const issueRegex = new RegExp(
-		`href="https?:\/\/${githubRepository.remote.gitProtocol.url.authority}\\/${githubRepository.remote.owner}\\/${githubRepository.remote.repositoryName}\\/(issues|pull)\\/([0-9]+)"`);
+		`href="https?:\/\/${escapeRegExp(githubRepository.remote.gitProtocol.url.authority)}\\/${escapeRegExp(githubRepository.remote.owner)}\\/${escapeRegExp(githubRepository.remote.repositoryName)}\\/(issues|pull)\\/([0-9]+)"`);
 	return stringReplaceAsync(body, issueRegex, async (match: string, issuesOrPull: string, number: string) => {
 		if (issuesOrPull === 'issues') {
 			return `href="${(await toOpenIssueWebviewUri({ owner: githubRepository.remote.owner, repo: githubRepository.remote.repositoryName, issueNumber: Number(number) })).toString()}""`;

src/issues/currentIssue.ts

@@ -15,6 +15,7 @@ import {
 	USE_BRANCH_FOR_ISSUES,
 	WORKING_ISSUE_FORMAT_SCM,
 } from '../common/settingKeys';
+import { escapeRegExp } from '../common/utils';
 import { FolderRepositoryManager, PullRequestDefaults } from '../github/folderRepositoryManager';
 import { GithubItemStateEnum } from '../github/interface';
 import { IssueModel } from '../github/issueModel';
@@ -218,7 +219,7 @@ export class CurrentIssue extends Disposable {
 			undefined,
 			await this.getUser(),
 		);
-		const branchNameMatch = this._branchName?.match(new RegExp('^(' + branchNameConfig + ')(_)?(\\d*)'));
+		const branchNameMatch = this._branchName?.match(new RegExp('^(' + escapeRegExp(branchNameConfig) + ')(_)?(\\d*)'));
 		if ((createBranchConfig === 'on')) {
 			const branch = await this.getBranch(this._branchName!);
 			if (!branch) {