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import { Git, GitAPI } from "./git";
import { readdir } from "fs";
type VerificationResultErrorType = "REPO_NOT_FOUND" | "REPO_INVALID" | "COMMIT_NOT_FOUND" | "COMMIT_INVALID" | "ACCESS_DENIED";
const verification_error_types = {
REPO_NOT_FOUND: { code: 404, message: "Repository not found!" },
REPO_INVALID: { code: 403, message: "Invalid repository!" },
COMMIT_NOT_FOUND: { code: 404, message: "Commit not found!" },
COMMIT_INVALID: { code: 403, message: "Invalid commit!" },
ACCESS_DENIED: { code: 403, message: "Access denied!" }
};
export class VerificationResult {
constructor(success: boolean, error_type?: VerificationResultErrorType) {
this.success = success;
if(error_type) {
this.message = verification_error_types[error_type].message;
this.code = verification_error_types[error_type].code;
}
}
success: boolean;
code: number = 0;
message: string | null = null;
}
export function verifyRepoName(base_dir: string, repo_name: string) {
return new Promise<VerificationResult>(resolve => {
console.log(repo_name);
const is_valid_repo_name = (/^[a-zA-Z0-9.\-_]+$/u).test(repo_name);
if(!is_valid_repo_name) {
resolve(new VerificationResult(false, "REPO_INVALID"));
return;
}
readdir(base_dir, (err, dir_content) => {
if(err) {
resolve(new VerificationResult(false, "REPO_NOT_FOUND"));
return;
}
const dir_content_repos = dir_content.filter(repo => repo.endsWith(".git"));
if(!dir_content_repos.includes(repo_name + ".git")) {
resolve(new VerificationResult(false, "REPO_NOT_FOUND"));
return;
}
resolve(new VerificationResult(true));
});
});
}
export async function verifyCommitID(git: GitAPI, repo: string, commit_id: string) {
if(!(/^[a-fA-F0-9]+$/u).test(commit_id)) {
return new VerificationResult(false, "COMMIT_INVALID");
}
const commit_exists = await git.doesCommitExist(repo, commit_id);
if(!commit_exists) {
return new VerificationResult(false, "COMMIT_NOT_FOUND");
}
return new VerificationResult(true);
}
export function verifyGitRequest(request_info: Git.RequestInfo): VerificationResult {
if((/\.\/|\.\./u).test(request_info.parsed_url.pathname)) {
return new VerificationResult(false, "REPO_NOT_FOUND");
}
if(request_info.service !== "git-upload-pack") {
return new VerificationResult(false, "ACCESS_DENIED");
}
return new VerificationResult(true);
}
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