private static PackageRequestResult RequestPackage(string repoPath, string packageName, string version, string localFile, string packagesFolder)
{
var result = new PackageRequestResult();
bool hasVersion = !string.IsNullOrWhiteSpace(version);
try
{
if (Directory.Exists(repoPath))
{
string name = null;
if (hasVersion)
{
name = packageName + "." + version;
}
else
{
var packages = Directory.GetFiles(repoPath, "*.nupkg", SearchOption.TopDirectoryOnly);
var escapedName = packageName.Replace(".", @"\.");
string pattern = "\\A" + escapedName + "\\.\\d+(\\.\\d+){2}\\z";
// Prerelease-aware pattern
if (Program.EnablePrerelease)
{
pattern = "\\A" + escapedName + "\\.\\d+(\\.\\d+){2}(|-.*)\\z";
}
version = null;
InformationalVersion latestVersion = null;
foreach (var p in packages)
{
var pName = Path.GetFileNameWithoutExtension(p);
if (Regex.IsMatch(pName, pattern, RegexOptions.IgnoreCase))
{
var pVersion = new InformationalVersion(pName.Substring(packageName.Length + 1));
if (latestVersion == null)
{
latestVersion = pVersion;
}
else if (pVersion > latestVersion)
{
latestVersion = pVersion;
}
}
}
if (latestVersion == null)
{
return(result);
}
BridgeVersion.ValidatePackageVersion(packageName, repoPath, latestVersion);
name = packageName + "." + latestVersion;
}
name = name[0].ToString().ToUpper() + name.Substring(1);
var packageFolder = Path.Combine(packagesFolder, name);
result.Folder = packageFolder;
if (Directory.Exists(packageFolder))
{
result.Exists = true;
result.Success = true;
}
else
{
var packageFile = Path.Combine(repoPath, name + ".nupkg");
if (File.Exists(packageFile))
{
File.Copy(packageFile, localFile, true);
result.Success = true;
}
else
{
result.Success = false;
}
}
}
else
{
var isFile = true;
try
{
var uri = new Uri(repoPath);
isFile = uri.IsFile;
}
catch (Exception)
{
}
if (!isFile)
{
if (!repoPath.EndsWith("/"))
{
repoPath += "/";
}
string uri = repoPath + packageName + (hasVersion ? "/" + version : "");
string name = null;
if (hasVersion)
{
name = packageName + "." + version;
}
else
{
var webRequest = (HttpWebRequest)WebRequest.Create(uri + "?" + new Random().Next());
webRequest.AllowAutoRedirect = false;
var webResponse = (HttpWebResponse)webRequest.GetResponse();
if (!String.IsNullOrEmpty(webResponse.Headers["Location"]))
{
var fileName = System.IO.Path.GetFileName(webResponse.Headers["Location"]);
name = Path.GetFileNameWithoutExtension(fileName);
}
BridgeVersion.ValidatePackageVersion(packageName, repoPath, name.Substring(packageName.Length + 1));
webResponse.Dispose();
}
name = name[0].ToString().ToUpper() + name.Substring(1);
var packageFolder = Path.Combine(packagesFolder, name);
result.Folder = packageFolder;
if (Directory.Exists(packageFolder))
{
result.Exists = true;
result.Success = true;
}
else
{
WebClient client = new WebClient();
client.DownloadFile(uri, localFile);
client.Dispose();
result.Success = true;
}
}
}
}
catch (Exception e)
{
result.Success = false;
result.Exception = new Exception("Package request failed.", e);
}
return(result);
}
/// <summary>
/// This just throws exceptions if some package sanity checks do not pass.
/// </summary>
/// <param name="packageName"></param>
/// <param name="repoPath"></param>
/// <param name="version"></param>
public static void ValidatePackageVersion(string packageName, string repoPath, InformationalVersion version)
{
switch (packageName)
{
case string p when p == "Bridge" || p == "Bridge.Min" || p == "Bridge.Core":
if (!Program.EnablePrerelease && version.IsPrerelease)
{
throw new Exception("Invalid package version: " + version + "." + nl +
"Prerelease packages handling is disabled. If you want to enable it, please" + nl +
"specify the --enable-prerelease commandline argument.");
}
if (Constants.MinBridgeVersion > version)
{
throw new Exception("Latest available " + packageName + " version on repository is behind minimum required." + nl +
"Repository path: " + repoPath + nl +
"Latest available version: " + version + nl +
"Minimal version required: " + Constants.MinBridgeVersion);
}
break;
}
}