add sessions for already uploaded files and implement manual deletion

js/actions/coa_actions.js

@@ -15,7 +15,6 @@ class CoaActions {
         CoaFetcher.fetchOne(id)
             .then((res) => {
                 this.actions.updateCoa(res.coa);
-                console.log(res.coa);
             })
             .catch((err) => {
                 console.log(err);
@@ -25,7 +24,6 @@ class CoaActions {
         CoaFetcher.create(edition.bitcoin_id)
             .then((res) => {
                 this.actions.updateCoa(res.coa);
-                console.log(res.coa);
             })
             .catch((err) => {
                 console.log(err);

js/components/ascribe_uploader/react_s3_fine_uploader.js

@@ -9,6 +9,7 @@ import fetch from 'isomorphic-fetch';
 import AppConstants from '../../constants/application_constants';
 
 import { getCookie } from '../../utils/fetch_api_utils';
+import S3Fetcher from '../../fetchers/s3_fetcher';
 
 import fineUploader from 'fineUploader';
 import FileDragAndDrop from './file_drag_and_drop';
@@ -184,7 +185,8 @@ var ReactS3FineUploader = React.createClass({
                 onRetry: this.onRetry,
                 onAutoRetry: this.onAutoRetry,
                 onManualRetry: this.onManualRetry,
-                onDeleteComplete: this.onDeleteComplete
+                onDeleteComplete: this.onDeleteComplete,
+                onSessionRequestComplete: this.onSessionRequestComplete
             }
         };
     },
@@ -332,7 +334,7 @@ var ReactS3FineUploader = React.createClass({
     },
 
     onProgress(id, name, uploadedBytes, totalBytes) {
-        var newState = React.addons.update(this.state, {
+        let newState = React.addons.update(this.state, {
             filesToUpload: { [id]: {
                 progress: { $set: (uploadedBytes / totalBytes) * 100} }
             }
@@ -340,12 +342,61 @@ var ReactS3FineUploader = React.createClass({
         this.setState(newState);
     },
 
+    onSessionRequestComplete(response, success) {
+        if(success) {
+            // fetch blobs for images
+            response = response.map((file) => {
+                file.url = file.s3Url;
+                file.status = 'online';
+                file.progress = 100;
+                return file;
+            });
+
+            // add file to filesToUpload
+            let updatedFilesToUpload = this.state.filesToUpload.concat(response);
+
+            // refresh all files ids,
+            updatedFilesToUpload = updatedFilesToUpload.map((file, i) => {
+                file.id = i;
+                return file;
+            });
+
+            let newState = React.addons.update(this.state, {filesToUpload: {$set: updatedFilesToUpload}});
+            this.setState(newState);
+        } else {
+            let notification = new GlobalNotificationModel('Could not load attached files (Further data)', 'success', 5000);
+            GlobalNotificationActions.appendGlobalNotification(notification);
+
+            throw new Error('The session request failed', response);
+        }
+    },
+
     handleDeleteFile(fileId) {
-        // delete file from server
-        this.state.uploader.deleteFile(fileId);
-        // this is being continues in onDeleteFile, as
-        // fineuploaders deleteFile does not return a correct callback or
-        // promise
+        // In some instances (when the file was already uploaded and is just displayed to the user)
+        // fineuploader does not register an id on the file (we do, don't be confused by this!).
+        // Since you can only delete a file by its id, we have to implement this method ourselves
+        // 
+        //  So, if an id is not present, we delete the file manually
+        //  To check which files are already uploaded from previous sessions we check their status.
+        //  If they are, it is "online"
+
+        if(this.state.filesToUpload[fileId].status !== 'online') {
+            // delete file from server
+            this.state.uploader.deleteFile(fileId);
+            // this is being continues in onDeleteFile, as
+            // fineuploaders deleteFile does not return a correct callback or
+            // promise
+        } else {
+            let fileToDelete = this.state.filesToUpload[fileId];
+            S3Fetcher
+                .deleteFile(fileToDelete.s3Key, fileToDelete.s3Bucket)
+                .then((res) => {
+                    console.log(res);
+                })
+                .catch((err) => {
+                    console.log(err);
+                });
+        }
     },
 
     handleCancelFile(fileId) {

js/constants/api_urls.js

@@ -40,7 +40,8 @@ let apiUrls = {
     'users_signup': AppConstants.apiEndpoint + 'users/',
     'users_username': AppConstants.apiEndpoint + 'users/username/',
     'wallet_settings': AppConstants.apiEndpoint + 'users/wallet_settings/',
-    'whitelabel_settings': AppConstants.apiEndpoint + 'whitelabel/settings/${subdomain}/'
+    'whitelabel_settings': AppConstants.apiEndpoint + 'whitelabel/settings/${subdomain}/',
+    'delete_s3_file': AppConstants.serverUrl + 's3/delete/'
 };
 
 export default apiUrls;

js/fetchers/s3_fetcher.js

@@ -0,0 +1,17 @@
+'use strict';
+
+import requests from '../utils/requests';
+
+let S3Fetcher = {
+    /**
+     * Fetch the registered applications of a user from the API.
+     */
+    deleteFile(key, bucket) {
+        return requests.delete('delete_s3_file', {
+            key,
+            bucket
+        });
+    }
+};
+
+export default S3Fetcher;

js/utils/fetch_api_utils.js

@@ -69,4 +69,39 @@ export function getCookie(name) {
     if (parts.length === 2) {
         return parts.pop().split(';').shift();
     }
+}
+
+/*
+
+    Given a url for an image, this method fetches it and returns a promise that resolves to
+    a blob object.
+    It can be used to create a 64base encoded data url.
+
+    Taken from: http://jsfiddle.net/jan_miksovsky/yy7zs/
+
+ */
+export function fetchImageAsBlob(url) {
+    return new Promise((resolve, reject) => {
+        let xhr = new XMLHttpRequest();
+
+        xhr.open('GET', url, true);
+
+        // Ask for the result as an ArrayBuffer.
+        xhr.responseType = 'arraybuffer';
+
+        xhr.onreadystatechange = function() {
+            if(xhr.readyState === 4 && xhr.status >= 400) {
+                reject(xhr.statusText);
+            }
+        };
+
+        xhr.onload = function() {
+            // Obtain a blob: URL for the image data.
+            let arrayBufferView = new Uint8Array(this.response);
+            let blob = new Blob([arrayBufferView], {type: 'image/jpeg'});
+            resolve(blob);
+        };
+
+        xhr.send();
+    });
 }