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GitHubApi.cs
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GitHubApi.cs
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using System.Net.Http.Headers;
using System.Text.Json;
using GithubActionsOrchestrator.GitHub;
using Npgsql.Replication;
using Serilog;
using Serilog.Core;
namespace GithubActionsOrchestrator;
public static class GitHubApi {
public static async Task<List<GitHubRunner>> GetRunnersForOrg(string githubToken, string orgName)
{
return await GetRunners(githubToken, $"orgs/{orgName}");
}
public static async Task<List<GitHubRunner>> GetRunnersForRepo(string githubToken, string repoName)
{
return await GetRunners(githubToken, $"repos/{repoName}");
}
private static async Task<List<GitHubRunner>> GetRunners(string githubToken, string ownerPath)
{
// Register a runner with github
using HttpClient client = new();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/vnd.github+json"));
client.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
client.DefaultRequestHeaders.Authorization = AuthenticationHeaderValue.Parse($"Bearer {githubToken}");
client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("hetzner-autoscale", "1"));
var runners = new List<GitHubRunner>();
string url = $"https://api.github.com/{ownerPath}/actions/runners?per_page=100";
while (!string.IsNullOrEmpty(url))
{
HttpResponseMessage response = await client.GetAsync(url);
if (response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
var pageRunners = JsonSerializer.Deserialize<GitHubRunners>(content);
if (pageRunners != null)
{
runners.AddRange(pageRunners.Runners);
}
url = GetNextPageUrl(response);
}
else
{
Log.Warning($"Unable to get GH runners for org: [{response.StatusCode}] {response.ReasonPhrase}");
}
}
return runners;
}
private static string GetNextPageUrl(HttpResponseMessage response)
{
if (response.Headers.TryGetValues("Link", out var links))
{
foreach (var link in links)
{
// Example Link header format: <https://api.github.com/resource?page=2>; rel="next", ...
foreach (var part in link.Split(','))
{
if (part.Contains("rel=\"next\""))
{
int startIndex = part.IndexOf('<') + 1;
int endIndex = part.IndexOf('>');
if (startIndex >= 0 && endIndex > startIndex)
{
return part[startIndex..endIndex];
}
}
}
}
}
return null;
}
public static async Task<string> GetRunnerTokenForOrg(string githubToken, string orgName)
{
// Register a runner with github
using HttpClient client = new();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/vnd.github+json"));
client.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
client.DefaultRequestHeaders.Authorization = AuthenticationHeaderValue.Parse($"Bearer {githubToken}");
client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("hetzner-autoscale", "1"));
HttpResponseMessage response = await client.PostAsync(
$"https://api.github.com/orgs/{orgName}/actions/runners/registration-token", null);
if(response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
GitHubResponse responseObject = JsonSerializer.Deserialize<GitHubResponse>(content);
return responseObject?.token;
}
Log.Warning($"Unable to get GH runner token for org: [{response.StatusCode}] {response.ReasonPhrase}");
return null;
}
public static async Task<string> GetRunnerTokenForRepo(string githubToken, string repoName)
{
// Register a runner with github
using HttpClient client = new();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/vnd.github+json"));
client.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
client.DefaultRequestHeaders.Authorization = AuthenticationHeaderValue.Parse($"Bearer {githubToken}");
client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("hetzner-autoscale", "1"));
HttpResponseMessage response = await client.PostAsync(
$"https://api.github.com/repos/{repoName}/actions/runners/registration-token", null);
if(response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
GitHubResponse responseObject = JsonSerializer.Deserialize<GitHubResponse>(content);
return responseObject?.token;
}
Log.Warning($"Unable to get GH runner token for repo: [{response.StatusCode}] {response.ReasonPhrase}");
return null;
}
public static async Task<bool> RemoveRunnerFromOrg(string orgName, string orgGitHubToken, long runnerToRemove)
{
// Register a runner with github
using HttpClient client = new();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/vnd.github+json"));
client.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
client.DefaultRequestHeaders.Authorization = AuthenticationHeaderValue.Parse($"Bearer {orgGitHubToken}");
client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("hetzner-autoscale", "1"));
HttpResponseMessage response = await client.DeleteAsync(
$"https://api.github.com/orgs/{orgName}/actions/runners/{runnerToRemove}");
return response.IsSuccessStatusCode;
}
public static async Task<bool> RemoveRunnerFromRepo(string repoName, string orgGitHubToken, long runnerToRemove)
{
// Register a runner with github
using HttpClient client = new();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/vnd.github+json"));
client.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
client.DefaultRequestHeaders.Authorization = AuthenticationHeaderValue.Parse($"Bearer {orgGitHubToken}");
client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("hetzner-autoscale", "1"));
HttpResponseMessage response = await client.DeleteAsync(
$"https://api.github.com/repos/{repoName}/actions/runners/{runnerToRemove}");
return response.IsSuccessStatusCode;
}
}