using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using com.amazonaws.s3;

public partial class _Default : System.Web.UI.Page
{
    public string myAWSAccessKeyId = "[YOUR ID HERE]";
    public string mySecretAccessKeyId = "[YOUR SECRET ID HERE]";

    protected void cmdSubmit_Click(object sender, EventArgs e)
    {
        if (myFileUpload.HasFile)
        {
            MyPrint("Server received " + myFileUpload.FileName);
            MyPrint("Attempting to save to S3");

            AmazonS3 myS3 = new AmazonS3();
            DateTime myTime = DateTime.Now;

            // Create a signature for this operation
            string strMySignature = S3Helper.GetSignature(
                mySecretAccessKeyId,
                "PutObjectInline",
                myTime);

            // Create a new Access grant for anonymous users.
            Grant myGrant = new Grant();
            Grant[] myGrants = new Grant[1];

            // Setup Access control, allow Read access to all
            Group myGroup = new Group();
            myGroup.URI = "http://acs.amazonaws.com/groups/global/AllUsers";
            myGrant.Grantee = myGroup;
            myGrant.Permission = Permission.READ;
            myGrants[0] = myGrant;

            // Setup some metadata to indicate the content type
            MetadataEntry myContentType = new MetadataEntry();
            myContentType.Name = "ContentType";
            myContentType.Value = myFileUpload.PostedFile.ContentType;

            MetadataEntry[] myMetaData = new MetadataEntry[1];
            myMetaData[0] = myContentType;

            // Finally upload the object
            PutObjectResult myResult = myS3.PutObjectInline(
                txtBucketName.Text,
                txtKey.Text,
                myMetaData,
                myFileUpload.FileBytes,
                myFileUpload.FileBytes.Length,
                myGrants,
                StorageClass.STANDARD,
                true,
                myAWSAccessKeyId,
                S3Helper.GetTimeStamp(myTime),
                true,
                strMySignature, null
                );

            // Print out the results.
            if (myResult != null) MyPrint("ETag: " + myResult.ETag);
        }
    }

    protected void cmdShowTime_Click(object sender, EventArgs e)
    {
        DateTime myTime = DateTime.Now;
        MyPrint("Current TimeStamp = " + S3Helper.FormatTimeStamp(myTime));
    }

    protected void cmdShowSignature_Click(object sender, EventArgs e)
    {
        DateTime myTime = DateTime.Now;
        MyPrint("Signature Digest = " + S3Helper.GetSignature(this.mySecretAccessKeyId, "ListAllMyBuckets", myTime));
    }

    protected void cmdListBuckets_Click(object sender, EventArgs e)
    {
        AmazonS3 myS3 = new AmazonS3();
        DateTime myTime = DateTime.Now;

        /// Lists all buckets under this user
        ListAllMyBucketsResult myBuckets = myS3.ListAllMyBuckets(myAWSAccessKeyId,
            S3Helper.GetTimeStamp(myTime),
            true,
            S3Helper.GetSignature(mySecretAccessKeyId, "ListAllMyBuckets", myTime));

        lblBuckets.Text = "<b>My Buckets</b><br/>";
        foreach (ListAllMyBucketsEntry b in myBuckets.Buckets)
        {
            lblBuckets.Text += (b.Name + ", created " + b.CreationDate + "<br/>");
        }
    }

    protected void cmdCreateBucket_Click(object sender, EventArgs e)
    {
        AmazonS3 myS3 = new AmazonS3();
        DateTime myTime = DateTime.Now;
        try
        {
            CreateBucketResult myCreateResult = myS3.CreateBucket(txtBucketName.Text, null,
                myAWSAccessKeyId,
                S3Helper.GetTimeStamp(myTime),
                true,
                S3Helper.GetSignature(mySecretAccessKeyId, "CreateBucket", myTime));

            MyPrint("Bucket successfully created.");
        }
        catch (Exception ex)
        {
            MyPrint("CreateBucket Error: " + ex.Message);
        }
    }

    void MyPrint(string strMsg)
    {
        lblResults.Text += strMsg + "<br/>";
    }
    protected void cmdDeleteBucket_Click(object sender, EventArgs e)
    {
        AmazonS3 myS3 = new AmazonS3();
        DateTime myTime = DateTime.Now;
        try
        {
            Status myDeleteResult = myS3.DeleteBucket(txtBucketName.Text,
                        myAWSAccessKeyId,
                        S3Helper.GetTimeStamp(myTime),
                        true,
                        S3Helper.GetSignature(mySecretAccessKeyId, "DeleteBucket", myTime), null);

            MyPrint("Bucket successfully deleted.");
        }
        catch (Exception ex)
        {
            MyPrint("DeleteBucket Error: " + ex.Message);
        }
    }
    protected void cmdShowContents_Click(object sender, EventArgs e)
    {
        AmazonS3 myS3 = new AmazonS3();
        DateTime myTime = DateTime.Now;
        string strMySignature = S3Helper.GetSignature(
            mySecretAccessKeyId,
            "ListBucket",
            myTime);

        ListBucketResult myResults = myS3.ListBucket(
            this.txtBucketName.Text,
            "",
            "",
            0,
            false,
            "|",
            myAWSAccessKeyId,
            S3Helper.GetTimeStamp(myTime),
            true,
            strMySignature,
            null);

        // Iterate through the bucket contents
        if (myResults.Contents != null)
        {
            lblResults.Text = "<table>";
            foreach (ListEntry myEntry in myResults.Contents)
            {
                lblResults.Text += "<tr><td>";
                lblResults.Text += "<img src=https://s3.amazonaws.com/" + txtBucketName.Text + "/" + myEntry.Key + " width=100px><br/>";
                lblResults.Text += "<a href=https://s3.amazonaws.com/" + txtBucketName.Text + "/" + myEntry.Key + " target=_blank>" + myEntry.Key + "</a>";
                lblResults.Text += "</td></tr>";
            }
            lblResults.Text += "</table>";
        }
        else
        {
            MyPrint("Bucket is Empty");
        }
    }

    protected void cmdDeleteFile_Click(object sender, EventArgs e)
    {
        AmazonS3 myS3 = new AmazonS3();
        DateTime myTime = DateTime.Now;
        string strMySignature = S3Helper.GetSignature(
            mySecretAccessKeyId,
            "DeleteObject",
            myTime);

        Status myResults = myS3.DeleteObject(
            this.txtBucketName.Text,
            this.txtKey.Text,
            myAWSAccessKeyId,
            S3Helper.GetTimeStamp(myTime),
            true,
            strMySignature,
            null);
        MyPrint("Delete successful: " + myResults.Code + ", " + myResults.Description);

    }

}