From b2101b324360fd1f45e234c048ab081abfb5b2d5 Mon Sep 17 00:00:00 2001
From: Fornax <wim@fornaxian.tech>
Date: Tue, 21 Mar 2023 19:09:14 +0100
Subject: [PATCH] Add file upload widget to file manager

---
 res/template/file_viewer_svelte.html          |   1 +
 res/template/user_file_manager.html           |   1 +
 svelte/src/home_page/UploadWidget.svelte      |   2 +-
 .../src/user_file_manager/FileManager.svelte  |  28 ++-
 .../src/util/upload_widget/DropUpload.svelte  |  53 ++++++
 svelte/src/util/upload_widget/UploadFunc.js   |  68 +++++++
 .../util/upload_widget/UploadProgress.svelte  |  66 +++++++
 .../util/upload_widget/UploadWidget.svelte    | 170 ++++++++++++++++++
 8 files changed, 381 insertions(+), 8 deletions(-)
 create mode 100644 svelte/src/util/upload_widget/DropUpload.svelte
 create mode 100644 svelte/src/util/upload_widget/UploadFunc.js
 create mode 100644 svelte/src/util/upload_widget/UploadProgress.svelte
 create mode 100644 svelte/src/util/upload_widget/UploadWidget.svelte

diff --git a/res/template/file_viewer_svelte.html b/res/template/file_viewer_svelte.html
index 3788b97..7235b45 100644
--- a/res/template/file_viewer_svelte.html
+++ b/res/template/file_viewer_svelte.html
@@ -26,6 +26,7 @@
 			window.api_endpoint = '{{.APIEndpoint}}';
 			window.viewer_data = {{.Other}};
 			window.user_authenticated = {{.Authenticated}};
+			window.user = {{.User}};
 		</script>
 
 		<link rel='stylesheet' href='/res/svelte/file_viewer.css?v{{cacheID}}'>
diff --git a/res/template/user_file_manager.html b/res/template/user_file_manager.html
index 7f0790e..fe9d77c 100644
--- a/res/template/user_file_manager.html
+++ b/res/template/user_file_manager.html
@@ -5,6 +5,7 @@
 
 		<script>
 			window.api_endpoint = '{{.APIEndpoint}}';
+			window.user = {{.User}};
 		</script>
 		<link rel='stylesheet' href='/res/svelte/user_file_manager.css?v{{cacheID}}'>
 		<script defer src='/res/svelte/user_file_manager.js?v{{cacheID}}'></script>
diff --git a/svelte/src/home_page/UploadWidget.svelte b/svelte/src/home_page/UploadWidget.svelte
index a32e626..81892eb 100644
--- a/svelte/src/home_page/UploadWidget.svelte
+++ b/svelte/src/home_page/UploadWidget.svelte
@@ -331,7 +331,7 @@ const keydown = (e) => {
 	on:keydown={keydown}
 	on:beforeunload={leave_confirmation} />
 
-<Konami></Konami>
+<Konami/>
 
 <!-- If the user is logged in and has used more than 50% of their storage space we will show a progress bar -->
 {#if window.user.username !== "" && window.user.storage_space_used/window.user.subscription.storage_space > 0.5}
diff --git a/svelte/src/user_file_manager/FileManager.svelte b/svelte/src/user_file_manager/FileManager.svelte
index dcbbcf7..034a811 100644
--- a/svelte/src/user_file_manager/FileManager.svelte
+++ b/svelte/src/user_file_manager/FileManager.svelte
@@ -3,6 +3,7 @@ import { onMount } from "svelte";
 import { formatDataVolume } from "../util/Formatting.svelte";
 import Modal from "../util/Modal.svelte";
 import Spinner from "../util/Spinner.svelte";
+import UploadWidget from "../util/upload_widget/UploadWidget.svelte";
 import DirectoryElement from "./DirectoryElement.svelte"
 
 let loading = true
@@ -12,6 +13,7 @@ let directoryElement
 let downloadFrame
 let help_modal
 let help_modal_visible = false
+let upload_widget
 
 let getUserFiles = () => {
 	loading = true
@@ -251,28 +253,40 @@ onMount(() => {
 	initialized = true
 	hashChange()
 })
-
 </script>
 
 <svelte:window on:keydown={keydown} on:hashchange={hashChange} />
 
+<UploadWidget bind:this={upload_widget} drop_upload on:uploads_finished={hashChange}/>
+
 <div id="file_manager" class="file_manager">
 	<div id="nav_bar" class="nav_bar">
 		<button id="btn_menu" onclick="toggleMenu()"><i class="icon">menu</i></button>
 		<button on:click={toggleSelecting} id="btn_select" class:button_highlight={selecting}>
 			<i class="icon">select_all</i> Select
 		</button>
-		<input bind:this={inputSearch} on:keyup={searchHandler} id="input_search" class="input_search" type="text" placeholder="press / to search"/>
-		<button on:click={() => help_modal.toggle()} class:button_highlight={help_modal_visible}>
-			<i class="icon">info</i>
-		</button>
-		<button on:click={hashChange} id="btn_reload">
+		<input
+			bind:this={inputSearch}
+			on:keyup={searchHandler}
+			id="input_search"
+			class="input_search"
+			type="text"
+			placeholder="press / to search"
+		/>
+		{#if contentType === "files"}
+			<button on:click={upload_widget.pick_files} id="btn_upload" title="Upload files">
+				<i class="icon">cloud_upload</i>
+			</button>
+		{/if}
+		<button on:click={hashChange} id="btn_reload" title="Refresh file list">
 			<i class="icon">refresh</i>
 		</button>
+		<button on:click={() => help_modal.toggle()} class:button_highlight={help_modal_visible} title="Help">
+			<i class="icon">info</i>
+		</button>
 	</div>
 	{#if selecting}
 		<div class="nav_bar">
-			<!-- Buttons to make a list and bulk delete files will show up here soon. Stay tuned ;-) -->
 			{#if contentType === "files"}
 				<button on:click={createList}><i class="icon">list</i> Make list</button>
 				<button on:click={downloadFiles}><i class="icon">download</i> Download</button>
diff --git a/svelte/src/util/upload_widget/DropUpload.svelte b/svelte/src/util/upload_widget/DropUpload.svelte
new file mode 100644
index 0000000..75e7eec
--- /dev/null
+++ b/svelte/src/util/upload_widget/DropUpload.svelte
@@ -0,0 +1,53 @@
+<script>
+import { createEventDispatcher } from "svelte";
+import { fade } from "svelte/transition";
+
+let dispatch = createEventDispatcher()
+let dragging = false
+
+const drop = (e) => {
+	dragging = false;
+	if (e.dataTransfer && e.dataTransfer.items.length > 0) {
+		e.preventDefault()
+		e.stopPropagation()
+		dispatch("upload", e.dataTransfer.files)
+	}
+}
+const paste = (e) => {
+	if (e.clipboardData.files[0]) {
+		e.preventDefault();
+		e.stopPropagation();
+		dispatch("upload", e.dataTransfer.files)
+	}
+}
+</script>
+
+<svelte:window
+	on:dragover|preventDefault|stopPropagation={() => { dragging = true }}
+	on:dragenter|preventDefault|stopPropagation={() => { dragging = true }}
+	on:dragleave|preventDefault|stopPropagation={() => { dragging = false }}
+	on:drop={drop}
+	on:paste={paste}
+/>
+
+{#if dragging}
+	<div class="drag_target" transition:fade={{duration: 200}}>
+		Drop files here to upload them
+	</div>
+{/if}
+
+<style>
+.drag_target {
+	position: fixed;
+	height: auto;
+	margin: auto;
+	top: 50%;
+	left: 50%;
+	transform: translate(-50%, -50%);
+	padding: 50px;
+	font-size: 2em;
+	background-color: rgba(0, 0, 0, 0.5);
+	border-radius: 100px;
+	box-shadow: 0 0 10px 10px rgba(0, 0, 0, 0.5);
+}
+</style>
diff --git a/svelte/src/util/upload_widget/UploadFunc.js b/svelte/src/util/upload_widget/UploadFunc.js
new file mode 100644
index 0000000..9add1e2
--- /dev/null
+++ b/svelte/src/util/upload_widget/UploadFunc.js
@@ -0,0 +1,68 @@
+// Uploads a file to the logged in user's pixeldrain account. If no user is
+// logged in the file is uploaded anonymously.
+//
+// on_progress reports progress on the file upload, parameter 1 is the uploaded
+// file size and parameter 2 is the total file size
+//
+// on_success is called when the upload is done, the only parameter is the file
+// ID
+//
+// on_error is called when the upload has failed. The parameters are the error
+// code and an error message
+export const upload_file = (file, name, on_progress, on_success, on_error) => {
+	// Check the file size limit. For free accounts it's 20 GB
+	if (window.user.subscription.file_size_limit === 0) {
+		window.user.subscription.file_size_limit = 20e9
+	}
+
+	if (file.size > window.user.subscription.file_size_limit) {
+		on_failure(
+			"file_too_large",
+			"This file is too large. Check out the Pro subscription to increase the file size limit"
+		)
+		return
+	}
+
+	let xhr = new XMLHttpRequest();
+	xhr.open("PUT", window.api_endpoint + "/file/" + encodeURIComponent(name), true);
+	xhr.timeout = 86400000; // 24 hours, to account for slow connections
+
+	xhr.upload.addEventListener("progress", evt => {
+		if (on_progress && evt.lengthComputable) {
+			on_progress(evt.loaded, evt.total)
+		}
+	});
+
+	xhr.onreadystatechange = () => {
+		// readystate 4 means the upload is done
+		if (xhr.readyState !== 4) {
+			return
+		}
+
+		if (xhr.status >= 100 && xhr.status < 400) {
+			// Request is a success
+			on_success(JSON.parse(xhr.response).id)
+		} else if (xhr.status >= 400) {
+			// Request failed
+			console.log("Upload error. status: " + xhr.status + " response: " + xhr.response);
+
+			let resp;
+			if (xhr.status === 429) {
+				resp = {
+					value: "too_many_requests",
+					message: "Too many requests. Please wait a few seconds",
+				}
+			} else {
+				resp = JSON.parse(xhr.response)
+			}
+
+			on_failure(resp.value, resp.message)
+		} else if (xhr.status === 0) {
+			on_failure("request_failed", "Your request did not arrive, check your network connection")
+		} else {
+			on_failure(xhr.responseText, xhr.responseText)
+		}
+	};
+
+	xhr.send(file);
+}
diff --git a/svelte/src/util/upload_widget/UploadProgress.svelte b/svelte/src/util/upload_widget/UploadProgress.svelte
new file mode 100644
index 0000000..3b0676f
--- /dev/null
+++ b/svelte/src/util/upload_widget/UploadProgress.svelte
@@ -0,0 +1,66 @@
+<script>
+import { createEventDispatcher } from "svelte";
+import ProgressBar from "../ProgressBar.svelte";
+import { upload_file } from "./UploadFunc";
+
+let dispatch = createEventDispatcher()
+export let job = {
+	file: null,
+	name: "",
+	id: "",
+	status: "",
+}
+export let total = 0
+export let loaded = 0
+let error_code = ""
+let error_message = ""
+
+export const start = () => {
+	upload_file(
+		job.file,
+		job.name,
+		(prog_loaded, prog_total) => {
+			loaded = prog_loaded
+			total = prog_total
+		},
+		async (id) => {
+			console.log("finsished", id)
+			job.status = "finished"
+			job.id = id
+			dispatch("finished")
+		},
+		(code, message) => {
+			console.log("error", code, message)
+			error_code = code
+			error_message = message
+			job.status = "error"
+			dispatch("finished")
+		},
+	)
+
+	job.status = "uploading"
+}
+
+</script>
+
+<div class="upload_progress" class:error={job.status === "error"}>
+	{job.name}<br/>
+	{#if error_code !== ""}
+		{error_message}<br/>
+		{error_code}<br/>
+	{/if}
+	<ProgressBar total={total} used={loaded}/>
+</div>
+
+<style>
+.upload_progress {
+	display: block;
+	padding: 2px 4px 1px 4px;
+	margin: 4px;
+	border-radius: 4px;
+}
+.error {
+	background: var(--danger_color);
+	color: var(--highlight_text_color);
+}
+</style>
diff --git a/svelte/src/util/upload_widget/UploadWidget.svelte b/svelte/src/util/upload_widget/UploadWidget.svelte
new file mode 100644
index 0000000..45d36af
--- /dev/null
+++ b/svelte/src/util/upload_widget/UploadWidget.svelte
@@ -0,0 +1,170 @@
+<script>
+import { createEventDispatcher, tick } from "svelte";
+import DropUpload from "./DropUpload.svelte";
+import UploadProgress from "./UploadProgress.svelte";
+let dispatch = createEventDispatcher()
+
+
+let file_input_field;
+let file_input_change = e => {
+	// Start uploading the files async
+	upload_files(e.target.files)
+
+	// This resets the file input field
+	file_input_field.nodeValue = ""
+}
+export const pick_files = () => {
+	file_input_field.click()
+}
+
+export let drop_upload = false
+let visible = false
+let upload_queue = [];
+let task_id_counter = 0
+
+export const upload_files = async (files) => {
+	if (files.length === 0) {
+		return
+	}
+
+	// Add files to the queue
+	for (let i = 0; i < files.length; i++) {
+		if (files[i].type === "" && files[i].size === 0) {
+			continue
+		}
+
+		upload_queue.push({
+			task_id: task_id_counter,
+			file: files[i],
+			name: files[i].name,
+			component: null,
+			id: "",
+			status: "queued",
+			total_size: files[i].size,
+			loaded_size: 0,
+		})
+		task_id_counter++
+	}
+
+	// Reassign array and wait for tick to complete. After the tick is completed
+	// each upload progress bar will have bound itself to its array item
+	upload_queue = upload_queue
+	visible = true
+	await tick()
+
+	start_upload()
+}
+
+let active_uploads = 0
+let state = "idle"
+
+const start_upload = () => {
+	for (let i = 0; i < upload_queue.length && active_uploads < 3; i++) {
+		if (upload_queue[i]) {
+			if (upload_queue[i].status === "queued") {
+				active_uploads++
+				upload_queue[i].component.start()
+				upload_queue[i].status = "uploading"
+			}
+		}
+	}
+
+	if (active_uploads === 0) {
+		state = "finished"
+
+		let file_ids = []
+		upload_queue.forEach(job => {
+			if (job.status === "finished" && job.id !== "") {
+				file_ids.push(job.id)
+			}
+		})
+
+		dispatch("uploads_finished", file_ids)
+
+		upload_queue = []
+		visible = false
+	} else {
+		state = "uploading"
+	}
+
+}
+
+const finish_upload = (e) => {
+	active_uploads--
+	upload_queue = upload_queue
+	start_upload()
+}
+
+</script>
+
+<input
+	bind:this={file_input_field}
+	on:change={file_input_change}
+	class="upload_input" type="file" name="file" multiple="multiple"
+/>
+
+{#if drop_upload}
+	<DropUpload on:upload={e => upload_files(e.detail)}/>
+{/if}
+
+{#if visible}
+	<div class="upload_widget">
+		<div class="header">
+			{#if state === "idle"}
+				Waiting for files
+			{:else if state === "uploading"}
+				Uploading files...
+			{:else if state === "finished"}
+				Done
+			{/if}
+		</div>
+		<div class="body">
+			{#each upload_queue as job}
+				{#if job.status !== "finished"}
+					<UploadProgress bind:this={job.component} job={job} on:finished={finish_upload}/>
+				{/if}
+			{/each}
+		</div>
+	</div>
+{/if}
+
+<style>
+.upload_input {
+	visibility: hidden;
+	position: static;
+	width: 0;
+	height: 0;
+}
+.upload_widget {
+	position: fixed;
+	display: flex;
+	flex-direction: column;
+	width: 400px;
+	max-width: 90%;
+	height: auto;
+	max-height: 500px;
+	right: 20px;
+	bottom: 20px;
+	border-radius: 20px 20px 8px 8px;
+	overflow-x: hidden;
+	overflow-y: auto;
+	box-shadow: 1px 1px 10px -2px var(--shadow_color);
+}
+
+.header {
+	flex: 0 0 auto;
+	background: var(--background_color);
+	color: var(--background_text_color);
+	text-align: center;
+	font-size: 1.2em;
+	padding: 4px;
+	white-space: nowrap;
+	text-overflow: ellipsis;
+	overflow: hidden;
+}
+.body {
+	flex: 1 1 auto;
+	background: var(--body_color);
+	color: var(--body_text_color);
+}
+</style>