public async Task <UpdateCheckResult> CheckForUpdateAsync()
{
UpdateCheckResult result = null;
if (httpClient != null)
{
string url = GITHUB_RELEASE_API_URL;
Logger.Debug($"Sending a request to {url}");
HttpResponseMessage response = await httpClient.GetAsync(url);
Logger.Debug($"Response status code: {(int)response.StatusCode} {response.StatusCode}.");
Logger.Debug("Response headers:", response.Headers.ToString().TrimEnd(), response.Content.Headers.ToString().TrimEnd());
if (response.StatusCode != HttpStatusCode.OK)
{
throw new Exception($"GitHub API returned {(int)response.StatusCode} {response.StatusCode}.");
}
string responseContent = await response.Content.ReadAsStringAsync();
Logger.Debug("Response content:", responseContent);
List <GitHubApiRelease> releases;
try
{
releases = JsonConvert.DeserializeObject <List <GitHubApiRelease> >(responseContent);
}
catch (Exception exception)
{
throw new Exception("GitHub API response is not a valid JSON string.", exception);
}
Logger.Debug($"{releases.Count} releases have been parsed from the GitHub API response.");
if (releases.Any())
{
GitHubApiRelease latestRelease = releases.First();
Logger.Debug($@"Latest release is ""{latestRelease.Name}"".");
if (latestRelease.Name != CURRENT_GITHUB_RELEASE_NAME && latestRelease.Name != ignoreReleaseName)
{
GitHubApiRelease.Asset asset = latestRelease.Assets.FirstOrDefault(assetItem => assetItem.Name == expectedAssetName);
if (asset != null)
{
Logger.Debug($"New asset is {asset.Name} ({asset.Size} bytes), download URL = {asset.DownloadUrl}.");
result = new UpdateCheckResult(latestRelease.Name, latestRelease.PublishedAt, asset.Name, asset.Size, asset.DownloadUrl);
}
}
}
}
return(result);
}
public async Task <UpdateCheckResult> CheckForUpdateAsync(bool ignoreSpecifiedRelease)
{
UpdateCheckResult result = null;
if (httpClient != null)
{
DownloadUtils.DownloadPageResult downloadPageResult = await DownloadUtils.DownloadPageAsync(httpClient, updateUrl,
CancellationToken.None);
if (downloadPageResult.HttpStatusCode != HttpStatusCode.OK)
{
throw new Exception($"GitHub API returned {(int)downloadPageResult.HttpStatusCode} {downloadPageResult.HttpStatusCode}.");
}
List <GitHubApiRelease> releases;
try
{
releases = JsonConvert.DeserializeObject <List <GitHubApiRelease> >(downloadPageResult.PageContent);
}
catch (Exception exception)
{
throw new Exception("GitHub API response is not a valid JSON string.", exception);
}
Logger.Debug($"{releases.Count} releases have been parsed from the GitHub API response.");
if (releases.Any())
{
GitHubApiRelease latestRelease = releases.First();
Logger.Debug($@"Latest release is ""{latestRelease.Name}"".");
if (latestRelease.Name != CURRENT_GITHUB_RELEASE_NAME && (!ignoreSpecifiedRelease || latestRelease.Name != ignoreReleaseName))
{
GitHubApiRelease.Asset asset = latestRelease.Assets.FirstOrDefault(assetItem => assetItem.Name == expectedAssetName);
if (asset != null)
{
Logger.Debug($"New asset is {asset.Name} ({asset.Size} bytes), download URL = {asset.DownloadUrl}.");
result = new UpdateCheckResult(latestRelease.Name, latestRelease.PublishedAt, asset.Name, asset.Size, asset.DownloadUrl);
}
}
}
}
return(result);
}