I have a camera connected to a network that provides images which can be accessed by IP. For example something like this.
http://170.1.2.3/image?camera=2
I get returned a jpg file, which I can easily display back on a webpage using normal html.
<img src="http://170.1.2.3/image?camera=2" />
But instead of simply showing the camera image as seen from the time of the page load, I also want to save this image locally to the server using an MVC4 application. In addition it would be nice to include a timestamp on the filename. I'm not having any luck finding an example that looks right to me.
Let's say I want to start with the most basic example:
string imgUrl = "http://170.1.2.3/image?camera=2";
savelocally(imgurl, "newfilename-"+DateTime.Now.ToString());
.. and savelocally() should place the file in "~/Uploads". How do I do this? All the examples I've come across have been for uploading a file from desktop. I don't know how to translate that into grabbing a remote image.
Update:
This is an incomplete answer, as pointed out by comments.
string url = "http://170.1.2.3/image?camera=2";
string localFilename = #"C:\Projects\MvcApplication1\MvcApplication1\Uploads\tofile.jpg";
using (WebClient client = new WebClient())
{
client.DownloadFile(url, localFilename);
}
It works, however I don't like the fact that the file path is an absolute one. I tried replacing localFilename with ~/Uploads/tofile.jpg but it results in an error on execution. If possible I want to avoid having a fixed location for the upload folder.
Related
Situation
I have two applications that both read and save images / documents to one specific folder. Example if the user uploads their image in one program, a user of program B is supposed to view and even edit that image.
What I have done
In one of my application I have created a setting in settings for the string of my path. So to save an image path I call
path = System.IO.Path.Combine(Properties.Settings.Default.imagePath, Fimage);
this works fine.
However, my issue is when I try to view the image in my edit view.
Controller
ViewBag.imagePath = Properties.Settings.Default.imagePath;
View
<img src="#ViewBag.imagePath/#Url.Content(#Model.image)" alt="Image" style="height: 255px; " />
Problem
The problem is upon attempting to view the image I get the error, Not allowed to load local resource: I have full access to the folder and when I attempt to browse to the file in the error message the picture is displayed. I was advised from other questions to use, server.MapPath however when I do Server.MapPath(Properties.Settings.Default.imagePath); I get the error physical path received, expected virtual path.
This viewbag holds the entire string of folder my files are stored with the EVERYONE user having full access. So i'm really unsure of why it's making a fuse.
P.S I cant say something like "~/content/images" because the path to that file is in an entirely different application, I think I need to give it the entire location.
Any assistance will be appreciated.
Gratitude
Looks like your defaultImage variable holds a physical path, which will work for saving the image since the API requires a path in the form e.g. c:\website\images\.... but for viewing, you need the VirtualPath, something of the form http://mycoolsite/images/image.jpg and this is what the error is telling you.
Your Controller; therefore, should return something like
ViewBag.imagePath = Properties.Settings.Default.imagePath.Replace(Request.ServerVariables["APPL_PHYSICAL_PATH"], String.Empty);
In order to get the Relative Path. See this other related question.
EDIT I just saw your "PS..."
If that's the case, then you need to pass the full URL to the other application: (e.g. http://someothersite.com/images/image.jpg).
I have c# dynamic aspx page after new property add I create for record brochure
http://veneristurkey.com/admin/Brochure.aspx?Admin=PropertiesBrochureA4&id=36
but I want to this convert image file I am searching on internet but all with webbrowser and windows forms. I need on page load show not css type also image file. jpg, png or tiff how i can do this. i need to see sample code..
saving aspx page into an image 2
As I mentioned in my comment, your best bet is to opt for attempting to render HTML to an image.
Here is the link for a library that will allow your to render html to an image:
http://htmlrenderer.codeplex.com/
Here is code that does exactly what you're asking:
http://amoghnatu.wordpress.com/2013/05/13/converting-html-text-to-image-using-c/
Now all you have left is to get the html, since I'm assuming you don't want this to render to the browser prior to generating this image - you should look into grabbing the rendered html from the aspx page on the server prior to returning it, and then just return the image. To render a page:
https://stackoverflow.com/a/647866/1017882
Sorted.
If you do not mind using a commandline tool you can have a look at wkhtmltopdf. The package include a wkhtmltoimage component that can be used to convert HTML to image, using
wkhtmltoimage [URL] [Image Path]
Codaxy also wrote a wkhtmltopdf c# wrapper available through the NuGet package manager. I'm not sure if the wkhtmltoimage component was included, but it should be easy enough to figure out how they wrap the wkhtml components.
i fixed my problem with screenshot machine API they are my code..
public void resimyap()
{
var procad = WS.Satiliklars.Where(v => v.ForSaleID == int.Parse(Request.QueryString["id"])).FirstOrDefault();
var imageBytes = GetBytesFromUrl("http://api.screenshotmachine.com/?key=xxxxxx&size=F&url=http://xxxxxxx.com/a4.aspx?id=" + procad.ForSaleID);
string root = Server.MapPath("~/");
// clean up the path
if (!root.EndsWith(#"\"))
root += #"\";
// make a folder to store the images in
string fileDirectory = root + #"\images\a4en\";
// create the folder if it does not exist
if (!System.IO.Directory.Exists(fileDirectory))
System.IO.Directory.CreateDirectory(fileDirectory);
WriteBytesToFile( fileDirectory + + procad.ForSaleID + ".png", imageBytes);
Yes i also try wkhtmltopdf c# wrapper but in pdf or image converting time my computer fan goin crayz. also i must upload server exe file and my hosting firm didnt support them
In my application I'm saving an image and transferring to a server through the use of a php script whose sole job is to pass this image to the server which saves it in the root of the server.
The code I have for my upload is as follows:
NameValueCollection nvc = new NameValueCollection();
nvc.Add("id", "TTR");
nvc.Add("btn-submit-photo", "Upload");
UploadToServer.HttpUploadFile(Settings.Default.ServerAddress , sfd.FileName.ToString(), "file", "image/jpeg", nvc);
Settings.Default.ServerAddress holds the location of my upload php script which the following:
http://server.foo.com/images/upload.php
I have another php script that returns a string of all the file and folders held on my server that is returned and displayed in a text box.
I'm calling this like so:
using (var client = new WebClient())
{
result = client.DownloadString("http://server.foo.com/images/getDirectoryList.php");
}
What I need to do is have a way so that I can choose the location of where the my image is stored. My feeling is telling that I need to do is have a way so that when a user selects anything with .folder, the old string list disappears and the images and files is stored within that folder.
I believe the call I need to make is something like this:
http://server.foo.com/images/getDirectoyList.php?dir=test_folder
But I'm stuck on trying to implement what I want. For one, the list I get back is all highlight and say I get something like
Image 1
Image 2
Test_folder.folder
I have no way of being able to simply click on Image 2 and have it highlight the whole thing. Instead is simply places the cursor where I clicked. Likewise I have no idea of how I would pass this information over to the my upload code so that my chosen directory is used to store the image as opposed to the root.
Has anyone ever attempted something like this before?
Do you have any links or advice that could help me achieve what it is I want to achieve?
Additionally, but not important, would I be able to ever create a new directory / folder on my server through my C# winform application without having to touch either the php scripts or the server itself?
I tried to upload my picture but it didn't work. I know sandbox doesn't support photos but I mean inside the sandbox listing there is main photo. Other sellers have a main photo so there must be a way.
My code compiles without an error but there just isn't a photo when I go to the sandbox. Here is the code I'm using:
apiCall.PictureFileList = new StringCollection();
apiCall.PictureFileList.Add(#"C:\Users\Danny\Desktop\deleteMeBiggerEbayPic.jpg");
item.PictureDetails = new PictureDetailsType();
item.PictureDetails.GalleryType = GalleryTypeCodeType.Gallery;
Afaik you can't upload pictures from your local hard-drive using the eBay SOAP API. You need to sepcify a public URL where eBay can download the image from.
BTW: The sandbox supports photos, the only thing it doesn't support are gallery images.
I decided to try the original code again and to my surprise it worked. Maybe I did something wrong but I cant be bothered checking, its working now.
Here is the code:
//Set the Picture Server URL for Sandbox
apiContext.EPSServerUrl = "https://api.sandbox.ebay.com/ws/api.dll";
//For production use this URL
//context.EPSServerUrl = "https://api.ebay.com/ws/api.dll";
//Set file path of the picture on the local disk
apiCall.PictureFileList = new StringCollection();
apiCall.PictureFileList.Add(#"C:\Users\Danny\Desktop\MyGalleryPicOnHardDrive.jpg");
//To specify a Gallery Image
item.PictureDetails = new PictureDetailsType();
//The first picture is used for Gallery URL
item.PictureDetails.GalleryType = GalleryTypeCodeType.Gallery;
//To add more pictures
//apiCall.PictureFileList.Add(#"C:\TEMP\pic2.gif");
I have file upload control on .aspx page, I want to upload an image at a time whose location is not always the same, could be in same directory as .sln, on desktop, anywhere.
I am using this code to read the file creation time
string savePath = MapPath("~/" + Path.GetFileName(e.FileName));
FileInfo MyFileInfo = new FileInfo(savePath);
string dt = MyFileInfo.CreationTime.Day.ToString();
string mn = MyFileInfo.CreationTime.Month.ToString();
string yr = MyFileInfo.CreationTime.Year.ToString();
I have noticed one thing that
If the image is in the same folder as the website, it gives me correct values for all
dt , mn and yr
But if it's outside that location, it always gives me same value everytime
{01/01/1601 00:00:00}
Not sure how to sort this out?
any advice, helpful code? thanks
It seems you do not understand the client/server barrier yet. Paths from the client are not meaningful on the server.
It so happens that your website is running on the same machine as the client because you are debugging locally. That is just a coincidence and it allows your code to sometimes work (by coincidence).
Proper file uploading works by ignoring the path and reading from the stream provided by the file upload control. A file upload is just a stream of bytes to the server.