public async Task <IActionResult> FileProxy(string mode, string path, string topic = "", string fileName = "")
{
// Special processing for file retrieval of attachments to TFS work items. This is mainly used to return images in item descriptions.
if (RepositoryTypeHelper.IsMatch(mode, RepositoryTypeNames.VstsWorkItemTracking))
{
var model = new TopicViewModel(topic, HttpContext);
if (SqlDataAccess.CanUseSql)
{
var prefix = ControllerHelper.GetCurrentDomainPrefix(HttpContext.Request);
var settings = await SqlDataAccess.GetSqlRepositorySettingsDynamic(prefix);
if (settings == null)
{
return(NotFound($"Document repository {prefix} does not exist."));
}
model.SetRootSettingsForRequest(settings);
}
await model.LoadData(buildHtml : false, buildToc : true);
var instance = model.GetSetting <string>(SettingsEnum.VstsInstance);
var pat = model.GetSetting <string>(SettingsEnum.VstsPat);
var stream = await VstsHelper.GetWorkItemAttachmentStream(path, instance, pat);
return(File(stream, GetContentTypeFromUrl(fileName), fileName));
}
// If we got this far, and the path is a fully qualified URL, then we just retrieve it
if (path.ToLowerInvariant().StartsWith("http://") || path.ToLowerInvariant().StartsWith("https://"))
{
using (var client = new WebClientEx())
{
var data = await client.DownloadDataTaskAsync(new Uri(path));
return(File(data, GetContentTypeFromUrl(path), StringHelper.JustFileName(path)));
}
}
// If it is in a VSTS Git repository, we use the API to retrieve it
if (RepositoryTypeHelper.IsMatch(mode, RepositoryTypeNames.VstsGit))
{
if (SqlDataAccess.CanUseSql)
{
var prefix = ControllerHelper.GetCurrentDomainPrefix(HttpContext.Request);
var settings = await SqlDataAccess.GetSqlRepositorySettingsDynamic(prefix);
if (settings == null)
{
return(NotFound($"Document repository {prefix} does not exist."));
}
var stream = await VstsHelper.GetFileStream(path,
SettingsHelper.GetSetting <string>(SettingsEnum.VstsInstance, requestRootSettings: settings),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsProjectName, requestRootSettings: settings),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsDocsFolder, requestRootSettings: settings),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsPat, requestRootSettings: settings),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsApiVersion, requestRootSettings: settings));
return(File(stream, GetContentTypeFromUrl(path), StringHelper.JustFileName(path)));
}
else
{
var stream = await VstsHelper.GetFileStream(path,
SettingsHelper.GetSetting <string>(SettingsEnum.VstsInstance),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsProjectName),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsDocsFolder),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsPat),
SettingsHelper.GetSetting <string>(SettingsEnum.VstsApiVersion));
return(File(stream, GetContentTypeFromUrl(path), StringHelper.JustFileName(path)));
}
}
// Otherwise, we got nothing :-)
return(null);
}