✨ Attachments

.gitignore

@@ -0,0 +1 @@
+/uploads

pkg/database/migrator.go

@@ -15,6 +15,7 @@ func RunMigration(source *gorm.DB) error {
 		&models.Post{},
 		&models.PostLike{},
 		&models.PostDislike{},
+		&models.Attachment{},
 	); err != nil {
 		return err
 	}

pkg/models/accounts.go

@@ -14,6 +14,7 @@ type Account struct {
 	EmailAddress  string        `json:"email_address"`
 	PowerLevel    int           `json:"power_level"`
 	Posts         []Post        `json:"posts" gorm:"foreignKey:AuthorID"`
+	Attachments   []Attachment  `json:"attachments" gorm:"foreignKey:AuthorID"`
 	LikedPosts    []PostLike    `json:"liked_posts"`
 	DislikedPosts []PostDislike `json:"disliked_posts"`
 	Realms        []Realm       `json:"realms"`

pkg/models/attachments.go

@@ -0,0 +1,29 @@
+package models
+
+import (
+	"fmt"
+	"github.com/spf13/viper"
+	"path/filepath"
+)
+
+type Attachment struct {
+	BaseModel
+
+	FileID   string  `json:"file_id"`
+	Filesize int64   `json:"filesize"`
+	Filename string  `json:"filename"`
+	Mimetype string  `json:"mimetype"`
+	Post     *Post   `json:"post"`
+	Author   Account `json:"author"`
+	PostID   *uint   `json:"post_id"`
+	AuthorID uint    `json:"author_id"`
+}
+
+func (v Attachment) GetStoragePath() string {
+	basepath := viper.GetString("content")
+	return filepath.Join(basepath, v.FileID)
+}
+
+func (v Attachment) GetAccessPath() string {
+	return fmt.Sprintf("/api/attachments/o/%s", v.FileID)
+}

pkg/models/posts.go

@@ -10,6 +10,7 @@ type Post struct {
 	Content          string        `json:"content"`
 	Tags             []Tag         `json:"tags" gorm:"many2many:post_tags"`
 	Categories       []Category    `json:"categories" gorm:"many2many:post_categories"`
+	Attachments      []Attachment  `json:"attachments"`
 	LikedAccounts    []PostLike    `json:"liked_accounts"`
 	DislikedAccounts []PostDislike `json:"disliked_accounts"`
 	RepostTo         *Post         `json:"repost_to" gorm:"foreignKey:RepostID"`

pkg/server/attachments_api.go

@@ -0,0 +1,38 @@
+package server
+
+import (
+	"code.smartsheep.studio/hydrogen/interactive/pkg/models"
+	"code.smartsheep.studio/hydrogen/interactive/pkg/services"
+	"github.com/gofiber/fiber/v2"
+	"github.com/spf13/viper"
+	"path/filepath"
+)
+
+func openAttachment(c *fiber.Ctx) error {
+	id := c.Params("fileId")
+	basepath := viper.GetString("content")
+
+	return c.SendFile(filepath.Join(basepath, id))
+}
+
+func uploadAttachment(c *fiber.Ctx) error {
+	user := c.Locals("principal").(models.Account)
+	file, err := c.FormFile("attachment")
+	if err != nil {
+		return err
+	}
+
+	attachment, err := services.NewAttachment(user, file)
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+	}
+
+	if err := c.SaveFile(file, attachment.GetStoragePath()); err != nil {
+		return err
+	}
+
+	return c.JSON(fiber.Map{
+		"info": attachment,
+		"url":  attachment.GetAccessPath(),
+	})
+}

pkg/server/auth_api.go

@@ -36,7 +36,7 @@ func doLogin(c *fiber.Ctx) error {
 	})
 }
 
-func doPostLogin(c *fiber.Ctx) error {
+func postLogin(c *fiber.Ctx) error {
 	buildOauth2Config()
 	code := c.Query("code")
 

pkg/server/posts_api.go

@@ -53,6 +53,7 @@ func createPost(c *fiber.Ctx) error {
 		Content     string              `json:"content" validate:"required"`
 		Tags        []models.Tag        `json:"tags"`
 		Categories  []models.Category   `json:"categories"`
+		Attachments []models.Attachment `json:"attachments"`
 		PublishedAt *time.Time          `json:"published_at"`
 		RepostTo    uint                `json:"repost_to"`
 		ReplyTo     uint                `json:"reply_to"`
@@ -94,6 +95,7 @@ func createPost(c *fiber.Ctx) error {
 		data.Alias,
 		data.Title,
 		data.Content,
+		data.Attachments,
 		data.Categories,
 		data.Tags,
 		data.PublishedAt,

pkg/server/startup.go

@@ -56,14 +56,17 @@ func NewServer() {
 
 	api := A.Group("/api").Name("API")
 	{
+		api.Get("/auth", doLogin)
+		api.Get("/auth/callback", postLogin)
+		api.Post("/auth/refresh", doRefreshToken)
+
 		api.Get("/users/me", auth, getUserinfo)
 		api.Get("/users/:accountId", getOthersInfo)
 		api.Get("/users/:accountId/follow", auth, getAccountFollowed)
 		api.Post("/users/:accountId/follow", auth, doFollowAccount)
 
-		api.Get("/auth", doLogin)
+		api.Get("/attachments/o/:fileId", openAttachment)
-		api.Get("/auth/callback", doPostLogin)
+		api.Post("/attachments", auth, uploadAttachment)
-		api.Post("/auth/refresh", doRefreshToken)
 
 		api.Get("/posts", listPost)
 		api.Post("/posts", auth, createPost)

pkg/services/attachments.go

@@ -0,0 +1,40 @@
+package services
+
+import (
+	"code.smartsheep.studio/hydrogen/interactive/pkg/database"
+	"code.smartsheep.studio/hydrogen/interactive/pkg/models"
+	"github.com/google/uuid"
+	"mime/multipart"
+	"net/http"
+)
+
+func NewAttachment(user models.Account, header *multipart.FileHeader) (models.Attachment, error) {
+	attachment := models.Attachment{
+		FileID:   uuid.NewString(),
+		Filesize: header.Size,
+		Filename: header.Filename,
+		Mimetype: "unknown/unknown",
+		PostID:   nil,
+		AuthorID: user.ID,
+	}
+
+	// Open file
+	file, err := header.Open()
+	if err != nil {
+		return attachment, err
+	}
+	defer file.Close()
+
+	// Detect mimetype
+	fileHeader := make([]byte, 512)
+	_, err = file.Read(fileHeader)
+	if err != nil {
+		return attachment, err
+	}
+	attachment.Mimetype = http.DetectContentType(fileHeader)
+
+	// Save into database
+	err = database.C.Save(&attachment).Error
+
+	return attachment, err
+}

pkg/services/posts.go

@@ -18,10 +18,13 @@ func ListPost(tx *gorm.DB, take int, offset int) ([]*models.Post, error) {
 		Limit(take).
 		Offset(offset).
 		Preload("Author").
+		Preload("Attachments").
 		Preload("RepostTo").
 		Preload("ReplyTo").
 		Preload("RepostTo.Author").
 		Preload("ReplyTo.Author").
+		Preload("RepostTo.Attachments").
+		Preload("ReplyTo.Attachments").
 		Find(&posts).Error; err != nil {
 		return posts, err
 	}
@@ -66,6 +69,7 @@ WHERE t.id IN (?)`, prefix, prefix, prefix), postIds).Scan(&reactInfo)
 func NewPost(
 	user models.Account,
 	alias, title, content string,
+	attachments []models.Attachment,
 	categories []models.Category,
 	tags []models.Tag,
 	publishedAt *time.Time,
@@ -77,6 +81,7 @@ func NewPost(
 		alias,
 		title,
 		content,
+		attachments,
 		categories,
 		tags,
 		publishedAt,
@@ -89,6 +94,7 @@ func NewPostWithRealm(
 	user models.Account,
 	realm *models.Realm,
 	alias, title, content string,
+	attachments []models.Attachment,
 	categories []models.Category,
 	tags []models.Tag,
 	publishedAt *time.Time,
@@ -122,6 +128,7 @@ func NewPostWithRealm(
 		Alias:       alias,
 		Title:       title,
 		Content:     content,
+		Attachments: attachments,
 		Tags:        tags,
 		Categories:  categories,
 		AuthorID:    user.ID,

pkg/view/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@fortawesome/fontawesome-free": "^6.5.1",
     "@solidjs/router": "^0.10.10",
+    "medium-zoom": "^1.1.0",
     "solid-js": "^1.8.7",
     "universal-cookie": "^7.0.2"
   },

pkg/view/src/components/PostAttachments.module.css

@@ -0,0 +1,3 @@
+.attachmentsControl {
+    background-color: transparent !important;
+}

pkg/view/src/components/PostAttachments.tsx

@@ -0,0 +1,80 @@
+import { createEffect, createMemo, createSignal, Match, Switch } from "solid-js";
+import mediumZoom from "medium-zoom";
+
+import styles from "./PostAttachments.module.css";
+
+export default function PostAttachments(props: { attachments: any[] }) {
+  if (props.attachments.length <= 0) return null;
+
+  const [focus, setFocus] = createSignal(0);
+  const item = createMemo(() => props.attachments[focus()]);
+
+  function getRenderType(item: any): string {
+    return item.mimetype.split("/")[0];
+  }
+
+  function getUrl(item: any): string {
+    return `/api/attachments/o/${item.file_id}`;
+  }
+
+  createEffect(() => {
+    mediumZoom(document.querySelectorAll(".attachment-image img"), {
+      background: "var(--fallback-b1,oklch(var(--b1)/1))"
+    });
+  }, [focus()]);
+
+  return (
+    <>
+      <p class="text-xs mt-3 mb-2">
+        <i class="fa-solid fa-paperclip me-2"></i>
+        Attached {props.attachments.length} file{props.attachments.length > 1 ? "s" : null}
+      </p>
+      <div class="border border-base-200">
+        <Switch fallback={
+          <div class="py-16 flex justify-center items-center">
+            <div class="text-center">
+              <i class="fa-solid fa-circle-question text-3xl"></i>
+              <p class="mt-3">{item().filename}</p>
+
+              <div class="flex gap-3 w-full">
+                <p class="text-sm">{item().filesize} Bytes</p>
+                <p class="text-sm">{item().mimetype}</p>
+              </div>
+
+              <div class="mt-5">
+              <a class="link" href={getUrl(item())} target="_blank">Open in browser</a>
+              </div>
+            </div>
+          </div>
+        }>
+          <Match when={getRenderType(item()) === "image"}>
+            <figure class="attachment-image">
+              <img class="object-cover" src={getUrl(item())} alt={item().filename} />
+            </figure>
+          </Match>
+        </Switch>
+
+        <div id="attachments-control" class="flex justify-between border-t border-base-200">
+          <div class="flex">
+            <button class={`w-12 h-12 btn btn-ghost ${styles.attachmentsControl}`}
+                    disabled={focus() - 1 < 0}
+                    onClick={() => setFocus(focus() - 1)}>
+              <i class="fa-solid fa-caret-left"></i>
+            </button>
+            <button class={`w-12 h-12 btn btn-ghost ${styles.attachmentsControl}`}
+                    disabled={focus() + 1 >= props.attachments.length}
+                    onClick={() => setFocus(focus() + 1)}>
+              <i class="fa-solid fa-caret-right"></i>
+            </button>
+          </div>
+
+          <div>
+            <div class="h-12 px-5 py-3.5 text-sm">
+              File {focus() + 1}
+            </div>
+          </div>
+        </div>
+      </div>
+    </>
+  );
+}

pkg/view/src/components/PostItem.tsx

@@ -1,5 +1,6 @@
 import { createSignal, Show } from "solid-js";
 import { getAtk, useUserinfo } from "../stores/userinfo.tsx";
+import PostAttachments from "./PostAttachments.tsx";
 
 export default function PostItem(props: {
   post: any,
@@ -58,6 +59,8 @@ export default function PostItem(props: {
         <h2 class="card-title">{props.post.title}</h2>
         <article class="prose">{props.post.content}</article>
 
+        <PostAttachments attachments={props.post.attachments ?? []} />
+
         <Show when={props.post.repost_to}>
           <p class="text-xs mt-3 mb-2">
             <i class="fa-solid fa-retweet me-2"></i>

pkg/view/src/components/PostPublish.tsx

@@ -1,4 +1,4 @@
-import { createSignal, Show } from "solid-js";
+import { createEffect, createSignal, For, Show } from "solid-js";
 import { getAtk, useUserinfo } from "../stores/userinfo.tsx";
 
 import styles from "./PostPublish.module.css";
@@ -15,6 +15,11 @@ export default function PostPublish(props: {
   const userinfo = useUserinfo();
 
   const [submitting, setSubmitting] = createSignal(false);
+  const [uploading, setUploading] = createSignal(false);
+
+  const [attachments, setAttachments] = createSignal<any[]>([]);
+
+  createEffect(() => setAttachments(props.editing?.attachments ?? []), [props.editing]);
 
   async function doPost(evt: SubmitEvent) {
     evt.preventDefault();
@@ -34,6 +39,7 @@ export default function PostPublish(props: {
         alias: data.alias ?? crypto.randomUUID().replace(/-/g, ""),
         title: data.title,
         content: data.content,
+        attachments: attachments(),
         published_at: data.published_at ? new Date(data.published_at as string) : new Date(),
         repost_to: props.reposting?.id,
         reply_to: props.replying?.id
@@ -55,6 +61,7 @@ export default function PostPublish(props: {
     const form = evt.target as HTMLFormElement;
     const data = Object.fromEntries(new FormData(form));
     if (!data.content) return;
+    if (uploading()) return;
 
     setSubmitting(true);
     const res = await fetch(`/api/posts/${props.editing?.id}`, {
@@ -66,7 +73,9 @@ export default function PostPublish(props: {
       body: JSON.stringify({
         alias: data.alias ?? crypto.randomUUID().replace(/-/g, ""),
         title: data.title,
-        content: data.content
+        content: data.content,
+        attachments: attachments(),
+        published_at: data.published_at ? new Date(data.published_at as string) : new Date()
       })
     });
     if (res.status !== 200) {
@@ -79,8 +88,36 @@ export default function PostPublish(props: {
     setSubmitting(false);
   }
 
+  async function uploadAttachments(evt: SubmitEvent) {
+    evt.preventDefault();
+
+    const data = new FormData(evt.target as HTMLFormElement);
+    if (!data.get("attachment")) return;
+
+    setUploading(true);
+    const res = await fetch("/api/attachments", {
+      method: "POST",
+      headers: { "Authorization": `Bearer ${getAtk()}` },
+      body: data
+    });
+    if (res.status !== 200) {
+      props.onError(await res.text());
+    } else {
+      const data = await res.json();
+      setAttachments(attachments().concat([data.info]));
+      props.onError(null);
+    }
+    setUploading(false);
+  }
+
+  function resetForm() {
+    setAttachments([]);
+    props.onReset();
+  }
+
   return (
-    <form id="publish" onSubmit={props.editing ? doEdit : doPost} onReset={props.onReset}>
+    <>
+      <form id="publish" onSubmit={props.editing ? doEdit : doPost} onReset={() => resetForm()}>
         <div id="publish-identity" class="flex border-y border-base-200">
           <div class="avatar pl-[20px]">
             <div class="w-12">
@@ -138,7 +175,7 @@ export default function PostPublish(props: {
 
         <div id="publish-actions" class="flex justify-between border-y border-base-200">
           <div class="flex">
-          <button type="button" class="btn btn-ghost w-12">
+            <button type="button" class="btn btn-ghost w-12" onClick={() => openModel("#attachments")}>
               <i class="fa-solid fa-paperclip"></i>
             </button>
             <button type="button" class="btn btn-ghost w-12" onClick={() => openModel("#planning-publish")}>
@@ -177,5 +214,45 @@ export default function PostPublish(props: {
           </div>
         </dialog>
       </form>
+
+
+      <dialog id="attachments" class="modal">
+        <div class="modal-box">
+          <h3 class="font-bold text-lg mx-1">Attachments</h3>
+          <form class="w-full mt-3" onSubmit={uploadAttachments}>
+            <label class="form-control">
+              <div class="label">
+                <span class="label-text">Pick a file</span>
+              </div>
+              <div class="join">
+                <input required type="file" name="attachment" class="join-item file-input file-input-bordered w-full" />
+                <button type="submit" class="join-item btn btn-primary" disabled={uploading()}>
+                  <i class="fa-solid fa-upload"></i>
+                </button>
+              </div>
+              <div class="label">
+                <span class="label-text-alt">Click upload to add this file into list</span>
+              </div>
+            </label>
+          </form>
+
+          <Show when={attachments().length > 0}>
+            <h3 class="font-bold mt-3 mx-1">Attachment list</h3>
+            <ol class="mt-2 mx-1 text-sm">
+              <For each={attachments()}>
+                {item => <li>
+                  <i class="fa-regular fa-file me-2"></i>
+                  {item.filename}
+                </li>}
+              </For>
+            </ol>
+          </Show>
+
+          <div class="modal-action">
+            <button type="button" class="btn" onClick={() => closeModel("#attachments")}>Close</button>
+          </div>
+        </div>
+      </dialog>
+    </>
   );
 }

pkg/view/src/index.css

@@ -6,3 +6,11 @@ html, body {
     padding: 0;
     margin: 0;
 }
+
+.medium-zoom-image--opened {
+    z-index: 15;
+}
+
+.medium-zoom-overlay {
+    z-index: 10;
+}