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static private GetCustomMetaTagCodeAsync ( ) : Task |
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| return | Task |
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// Populates index.html template and serves it
private static async Task <ContentResult> ReturnIndexHtml(ExecutionContext context, ILogger log, string root, string connAndHubName)
{
string indexHtmlPath = Path.Join(root, "index.html");
string html = await File.ReadAllTextAsync(indexHtmlPath);
// Replacing our custom meta tag with customized code from Storage or with default Content Security Policy
string customMetaTagCode = (await CustomTemplates.GetCustomMetaTagCodeAsync()) ?? DefaultContentSecurityPolicyMeta;
html = html.Replace("<meta name=\"durable-functions-monitor-meta\">", customMetaTagCode);
// Calculating routePrefix
string routePrefix = GetRoutePrefixFromHostJson(context, log);
string dfmRoutePrefix = GetDfmRoutePrefixFromFunctionJson(context, log);
if (!string.IsNullOrEmpty(dfmRoutePrefix))
{
routePrefix = string.IsNullOrEmpty(routePrefix) ? dfmRoutePrefix : routePrefix + "/" + dfmRoutePrefix;
}
// Applying routePrefix, if it is set to something other than empty string
if (!string.IsNullOrEmpty(routePrefix))
{
html = html.Replace("<script>var DfmRoutePrefix=\"\"</script>", $"<script>var DfmRoutePrefix=\"{routePrefix}\"</script>");
html = html.Replace("href=\"/", $"href=\"/{routePrefix}/");
html = html.Replace("src=\"/", $"src=\"/{routePrefix}/");
}
// Applying client config, if any
string clientConfigString = Environment.GetEnvironmentVariable(EnvVariableNames.DFM_CLIENT_CONFIG);
if (!string.IsNullOrEmpty(clientConfigString))
{
dynamic clientConfig = JObject.Parse(clientConfigString);
html = html.Replace("<script>var DfmClientConfig={}</script>", "<script>var DfmClientConfig=" + clientConfig.ToString() + "</script>");
}
// Mentioning whether Function Map is available for this Task Hub.
if (!string.IsNullOrEmpty(connAndHubName))
{
// Two bugs away. Validating that the incoming Task Hub name looks like a Task Hub name
Auth.ThrowIfTaskHubNameHasInvalidSymbols(connAndHubName);
Globals.SplitConnNameAndHubName(connAndHubName, out var connName, out var hubName);
string functionMap = (await CustomTemplates.GetFunctionMapsAsync()).GetFunctionMap(hubName);
if (!string.IsNullOrEmpty(functionMap))
{
html = html.Replace("<script>var IsFunctionGraphAvailable=0</script>", "<script>var IsFunctionGraphAvailable=1</script>");
}
}
return(new ContentResult()
{
Content = html,
ContentType = "text/html; charset=UTF-8"
});
}
public static async Task <IActionResult> DfmServeStaticsFunction(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = StaticsRoute)] HttpRequest req,
ExecutionContext context,
ILogger log
)
{
string root = context.FunctionAppDirectory + "/DfmStatics";
string path = req.Path.Value;
string routePrefix = GetRoutePrefixFromHostJson(context, log);
string dfmRoutePrefix = GetDfmRoutePrefixFromFunctionJson(context, log);
if (!string.IsNullOrEmpty(dfmRoutePrefix))
{
routePrefix = string.IsNullOrEmpty(routePrefix) ? dfmRoutePrefix : routePrefix + "/" + dfmRoutePrefix;
}
// Applying routePrefix, if it is set to something other than empty string
if (!string.IsNullOrEmpty(routePrefix) && path.StartsWith("/" + routePrefix))
{
path = path.Substring(routePrefix.Length + 1);
}
var contentType = FileMap.FirstOrDefault((kv => path.StartsWith(kv[0])));
if (contentType != null)
{
return(File.Exists(root + path) ?
(IActionResult) new FileStreamResult(File.OpenRead(root + path), contentType[1]) :
new NotFoundResult());
}
// Returning index.html by default, to support client routing
string html = await File.ReadAllTextAsync($"{root}/index.html");
// Replacing our custom meta tag with customized code from Storage or with default Content Security Policy
string customMetaTagCode = (await CustomTemplates.GetCustomMetaTagCodeAsync()) ?? DefaultContentSecurityPolicyMeta;
html = html.Replace(Globals.CustomMetaTag, customMetaTagCode);
// Applying routePrefix, if it is set to something other than empty string
if (!string.IsNullOrEmpty(routePrefix))
{
html = html.Replace("<script>var DfmRoutePrefix=\"\"</script>", $"<script>var DfmRoutePrefix=\"{routePrefix}\"</script>");
html = html.Replace("href=\"/", $"href=\"/{routePrefix}/");
html = html.Replace("src=\"/", $"src=\"/{routePrefix}/");
}
// Applying client config, if any
string clientConfigString = Environment.GetEnvironmentVariable(EnvVariableNames.DFM_CLIENT_CONFIG);
if (!string.IsNullOrEmpty(clientConfigString))
{
dynamic clientConfig = JObject.Parse(clientConfigString);
html = html.Replace("<script>var DfmClientConfig={}</script>", "<script>var DfmClientConfig=" + clientConfig.ToString() + "</script>");
}
return(new ContentResult()
{
Content = html,
ContentType = "text/html; charset=UTF-8"
});
}
