I have a page data folder with a property "Image", which is a reference to a Media file in the Composite C1 backend.
I now want to retrieve the data in my asp.net user control, but all I get when I access the "Image" Property of my PageDataFolder Type, is a string with the following format:
mediaarchive:b5354eba-3f69-4885-9eba-74576dff372d
I am not sure how to get the external image url from that. Is there an API function I can use?
Build a url like
~/media({MediaKey})
example: "~/media(mediaarchive:b5354eba-3f69-4885-9eba-74576dff372d)"
Once C1 page is rendered, it will be replaced with the following SEO friendly url:
/media/{Path to your image in media archive})
example: "/media/5611182f-6462-4b80-a051-3c3b9bb3276d/References/Screenshots/Olympiacos/1_png"
Note that you can specify image resing/cropping options via query string.
http://docs.composite.net/Getting-started/Configuration/Resizing-Images
If you, for some reason cannot rely on the C1 page rendering logic, you can build a public media url with the following code:
protected string GetMediaUrl(string mediaPath)
{
string[] parts = mediaPath.Split(new[] { ':' });
string mediaStore = parts[0];
Guid mediaId = new Guid(parts[1]);
string mediaUrl = MediaUrls.BuildUrl(new MediaUrlData { MediaStore = mediaStore, MediaId = mediaId, QueryParameters = new NameValueCollection() },
UrlKind.Public);
// Temporary fix, allows media player to receive a nice url with an extension
return mediaUrl.Replace("_jpg", ".jpg").Replace("_mov", ".mov").Replace("_m4v", ".m4v").Replace("_swf", ".swf");
}
I found a way, but it's not exactly the shortest one:
MediaUrlHelper.GetUrl(MediaUrlHelper.GetFileFromQueryString(new NameValueCollection { {"id", myItem.Image} }))
I still hope someone comes up with a better solution, I will be happy to mark that one as the answer.
Related
I have ASP.NET Core MVC back-end api. One controller returns File from server. Is there a way to make request to api route by [href] attribute of <a> tag? Looks like it tries to call React route but not make a request to server.
Also I made AJAX call to that controller and got back file as a string (screenshot is attached). Why is it a string, shouldn.t it be a byte array? How to build back file from that string? (it's a .pdf file). I have an empty PDF if use JavaScript new File([], 'name', {options}).
ASP.NET Core controller returns PDF this way:
return PhysicalFile(Path.GetFullPath(relativePath), "application/pdf", reportName);
In React I receive it as a string this way:
let stringPDFBinary = await ReportService.getReport(id, reportFileName)
I just need to download file from api by any way.
So, the answer is here: PDF is blank when downloading using javascript
The same problem. Let it be one more topic, easier to find for others. The AJAX response is encoded string. In request config set 'responseType = 'arraybuffer'' somehow and receiving pdf will not be blank. Solved.
I Just copied and pasted from the code source. The problem seems to be the same that i had:
Asp net controller:
[HttpGet]
[Route("File")]
[AllowAnonymous]
public IActionResult GetFile(string key)
{
var file = (FileCacheValue)_fileCache.Cache[key.Replace(" ", "+")];
if (file == null)
return NotFound();
Response.Headers["content-disposition"] = $"inline;filename={file.Name}.pdf";
return File(file.Data, "application/pdf");
}
In this case comes from a cache system. The data is a byte array.
Front-end React:
const onClick = () =>
{
window.open(pdfByteArray, '_blank', 'fullscreen=yes');
}
Exactly what i have. I just put the data on a new window and open the pdf.
The Ajax part is straight forward, get the value from the response and set it on a variable
I am opening a webpage in the cefsharp browser and trying to send a set of JSON data to my website's .aspx page along with query string. While the query string is not an issue but sending the JSON data to the same URL is what I am trying to fix. Earlier I was using Window's native WebBrowser control's Navigate method where I was passing the URL along with query string as well as a byte array. But, I don't find any such method to post the data. Various discussion and posts regarding the same don't have a clear example. Can you provide a sample code/example to show how to achieve that? Here is the code I've been using:
ChromiumWebBrowser browser = new ChromiumWebBrowser();
browser.Address = "https://webhook.site";
browser.Width = System.Windows.SystemParameters.PrimaryScreenWidth;
browser.Height = System.Windows.SystemParameters.PrimaryScreenHeight;
browser.RequestHandler = this;
browser.IsBrowserInitializedChanged += (sender, args) =>
{
if (browser.IsBrowserInitialized)
{
browser.LoadUrlWithPostData("https://webhook.site/#/cba9d04b-01ff-40ef-b223-0917d127ecbe/6ce82e34-28df-4900-88ef-c932a446c6b0/1", Encoding.UTF8.GetBytes("test=123&data=456"));
}
};
I'm actually struggeling with a problem handling some kml files with google map in my Javascript application.
I wrote a method with that I'm reading a KML file from an URL or my local file system and storing the content as a String in a Database. Now i would like to activate layers that are stored in my db by clicking a button. Everything is fine up to here.
In every example i can find they are only using the url-attribute of a KmlLayer by passing an url to a KML-File.
like here:
var ctaLayer = new google.maps.KmlLayer({
url: 'http://googlemaps.github.io/js-v2-samples/ggeoxml/cta.kml',
map: map
});
But since my files are stored as Strings in my db I don't have an url to a file, only the content. I can't find a way to only pass the XML-String as content.
Somebody here who can help?
Maybe someday somebody will struggle with a similar problem. The solution was a little bit tricky. I needed to create a Blob with the content of my String. With the blob I created a file and packed it into an URL. This URL you can pass to your kml parser. I used https://github.com/geocodezip/geoxml3 for that.
vm.activeLayers.forEach(function(value, key) {
var file = new Blob([value], {type: 'kml'})
var url = URL.createObjectURL(file);
var myParser = new geoXML3.parser({
map : map
});
myParser.parse(url);
})
I have the following routes:
/projects/{projectName}
and
/projects/{projectName}/Wall/{wallName}
Now I'd like to have that all GETs be allowed but PUT, POST, DELETE should only be allowed by project members i.e. users members of that project. I have a special class that given a user id and project name I can get the status of the user's membership - something like MyEnroler.getRole(userId, projectName) - where the userId is part of the request header and the projectName is taken from the URI.
I've tried a number of things but doesn't work. Here's the idea:
public class RoleMethodAuthorizer extends Authorizer {
#Override
protected boolean authorize(Request req, Response resp) {
//If it's a get request then no need for further authorization.
if(req.getMethod().equals(Method.GET))
return true;
else
{
String authorEmail = req.getClientInfo().getUser().getIdentifier();
String projectName = req.getAttributes().get("project").toString();
Role userRole = MyEnroler.getRole(authorEmail, projectName);
//forbid updates to resources if done by non-members of project
if(userRole.equals(MyEnroler.NON_MEMBER))
return false;
//for everybody else, return true
return true;
}
}
}
Now simply doing the following completely fails when creating inbound root in the Application:
Router projectRouter = new Router(getContext());
RoleMethodAuthorizer rma = new RoleMethodAuthorizer();
//Guard declaration here. Then setNext Restlet
guard.setNext(projectRouter);
projectRouter.attach("/projects/{project}",rma);
Router wallRouter = new Router(getContext());
wallRouter.attach("/Wall/{wallName}", WallResource.class);
rma.setNext(wallRouter);
//return guard;
So a request to /projects/stackoverflow/Wall/restlet fails. The URL is never found. I'm guessing since it's trying to match it with the projectRouter. Well I tried the various modes (MODE_BEST_MATCH or MODE_FIRST/NEXT_MATCH) to no avail.
Nothing seems to work. Conceptually this should work. I'm only intercepting a call and just being transparent to the request, but don't know how things are working on the inside.
I could move the authorizer just after the guard, but I'd lose access to the request attribute of projectName - I don't wish to parse the URL myself to search for the projectName since the URL pattern could change and would break the functionality - i.e. require 2 changes instead of one.
Any ideas how to achieve this?
I would use the standard RoleAuthorizer class to supply the list of allowed roles, along with your custom enroller probably split into two I would then add a custom Filter class that does something like this to call your Enrolers.
protected int beforeHandle(final Request request, final Response response) throws ResourceException {
final String projectName = (String) request.getAttributes().get("projectName");
// Check that a projectName is supplied, should not have got this far otherwise but lets check.
if (projectName == null || projectName.isEmpty()) {
throw new ResourceException(Status.CLIENT_ERROR_NOT_FOUND);
}
if (Method.GET.equals(request.getMethod())){
new ReadEnroler(projectName).enrole(request.getClientInfo());
}else{
new MutateEnroler(projectName).enrole(request.getClientInfo());
}
return super.beforeHandle(request, response);
}
the enrolers would then set the appropriate values in the clientInfo.getRoles() Collection when enrole was called.
Hi
I want to use Tweetsharp in my mvc.net application to get the list offriends and to share image with them.
But i haven't got the proper documentation and sample for the same. What is need to add in controller action and what in view page.
Please give some links for the same.
Thanks
munish
public void MyMethod() {
TwitterService service = new TwitterService(key, secret, "Token", "Secret");
ListFriendsOptions options = new ListFriendsOptions();
options.Cursor = 12345;
// should the response have user entities
options.IncludeUserEntities = false;
// The screen name of the user for whom to return results for.
options.ScreenName = "";
options.SkipStatus = false;
// The ID of the user for whom to return results for.
options.UserId = 12345;
// this will return a list of friends for the specified user.
TwitterCursorList<TwitterUser> listOfFriends = service.ListFriends(options);
}
Also note the code above uses a third party library called TweetSharp.
As for the images im not sure as to what to do but you can look at the twitter REST API v1.1 for information
https://dev.twitter.com/docs/api/1.1/get/friends/list
https://dev.twitter.com/docs/api/1.1
TweetSharp
https://github.com/danielcrenna/tweetsharp
I don't know about Tweetsharp but take a look at linq2twitter. It provides easy access to the Twitter API through the use of LINQ.