feat: similarity search

go.mod

@@ -3,14 +3,16 @@ module github.com/Damillora/Shioriko
 go 1.16
 
 require (
+	github.com/corona10/goimagehash v1.0.3
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
+	github.com/disintegration/imaging v1.6.2
 	github.com/gin-contrib/cors v1.3.1
 	github.com/gin-contrib/static v0.0.1
 	github.com/gin-gonic/gin v1.7.1
 	github.com/go-playground/validator/v10 v10.6.0
 	github.com/google/uuid v1.2.0
-	github.com/h2non/bimg v1.1.5
 	golang.org/x/crypto v0.0.0-20210506145944-38f3c27a63bf
+	golang.org/x/image v0.0.0-20210504121937-7319ad40d33e
 	gorm.io/driver/postgres v1.1.0
 	gorm.io/gorm v1.21.9
 )

go.sum

@@ -40,6 +40,8 @@ github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
+github.com/corona10/goimagehash v1.0.3 h1:NZM518aKLmoNluluhfHGxT3LGOnrojrxhGn63DR/CZA=
+github.com/corona10/goimagehash v1.0.3/go.mod h1:VkvE0mLn84L4aF8vCb6mafVajEb6QYMHl2ZJLn0mOGI=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -47,6 +49,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
+github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
@@ -273,6 +277,8 @@ github.com/nats-io/nats.go v1.9.1/go.mod h1:ZjDU1L/7fJ09jvUSRVBR2e7+RnLiiIQyqyzE
 github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
 github.com/nats-io/nkeys v0.1.3/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
+github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
+github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
 github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtbWGs=
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
 github.com/olekukonko/tablewriter v0.0.0-20170122224234-a0225b3f23b5/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
@@ -392,6 +398,9 @@ golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20210506145944-38f3c27a63bf h1:B2n+Zi5QeYRDAEodEu72OS36gmTWjgpXr2+cWcBW90o=
 golang.org/x/crypto v0.0.0-20210506145944-38f3c27a63bf/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/image v0.0.0-20210504121937-7319ad40d33e h1:PzJMNfFQx+QO9hrC1GwZ4BoPGeNGhfeQEgcQFArEjPk=
+golang.org/x/image v0.0.0-20210504121937-7319ad40d33e/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=

pkg/app/blob_routes.go

@@ -1,17 +1,27 @@
 package app
 
 import (
+	"encoding/binary"
+	"image"
+	_ "image/gif"
+	"image/jpeg"
+	_ "image/jpeg"
+	_ "image/png"
 	"net/http"
 	"os"
 	"path/filepath"
 
+	_ "golang.org/x/image/webp"
+
 	"github.com/Damillora/Shioriko/pkg/config"
 	"github.com/Damillora/Shioriko/pkg/database"
 	"github.com/Damillora/Shioriko/pkg/middleware"
 	"github.com/Damillora/Shioriko/pkg/models"
+	"github.com/Damillora/Shioriko/pkg/services"
+	"github.com/corona10/goimagehash"
+	"github.com/disintegration/imaging"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
-	"github.com/h2non/bimg"
 )
 
 func InitializeBlobRoutes(g *gin.Engine) {
@@ -67,6 +77,87 @@ func uploadBlob(c *gin.Context) {
 		os.Mkdir(filepath.Join(dataDir, "thumbnail", folder1, folder2), 0755)
 	}
 
+	previewFilename := id + ".jpg"
+	previewFilePath := filepath.Join(dataDir, "preview", folder1, folder2, previewFilename)
+	thumbnailFilePath := filepath.Join(dataDir, "thumbnail", folder1, folder2, previewFilename)
+
+	fileObj, _ := file.Open()
+	originalImage, _, err := image.Decode(fileObj)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+	}
+	width := originalImage.Bounds().Dx()
+	height := originalImage.Bounds().Dy()
+
+	hash, err := goimagehash.PerceptionHash(originalImage)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+		return
+	}
+	hashInt := hash.GetHash()
+
+	similarPosts, err := services.SimilaritySearch(hashInt)
+
+	hashSlice := make([]byte, 8)
+	binary.LittleEndian.PutUint64(hashSlice, hashInt)
+
+	previewImage := imaging.Resize(originalImage, 1000, 0, imaging.Lanczos)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+		return
+	}
+
+	thumbnailImage := imaging.Resize(originalImage, 300, 0, imaging.Lanczos)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+		return
+	}
+
+	previewFile, err := os.Create(previewFilePath)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+		return
+	}
+	thumbnailFile, err := os.Create(thumbnailFilePath)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+		return
+	}
+
+	err = jpeg.Encode(previewFile, previewImage, nil)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+	}
+	err = jpeg.Encode(thumbnailFile, thumbnailImage, nil)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.ErrorResponse{
+			Code:    http.StatusBadRequest,
+			Message: err.Error(),
+		})
+		return
+	}
+
 	filename := id + filepath.Ext(file.Filename)
 	filePath := filepath.Join(dataDir, folder1, folder2, filename)
 	err = c.SaveUploadedFile(file, filePath)
@@ -75,60 +166,7 @@ func uploadBlob(c *gin.Context) {
 			Code:    http.StatusBadRequest,
 			Message: err.Error(),
 		})
-	}
+		return
-
-	previewFilename := id + ".webp"
-	previewFilePath := filepath.Join(dataDir, "preview", folder1, folder2, previewFilename)
-	thumbnailFilePath := filepath.Join(dataDir, "thumbnail", folder1, folder2, previewFilename)
-
-	buffer, err := bimg.Read(filePath)
-	if err != nil {
-		c.JSON(http.StatusBadRequest, models.ErrorResponse{
-			Code:    http.StatusBadRequest,
-			Message: err.Error(),
-		})
-	}
-
-	image := bimg.NewImage(buffer)
-	metadata, err := image.Metadata()
-	if err != nil {
-		c.JSON(http.StatusBadRequest, models.ErrorResponse{
-			Code:    http.StatusBadRequest,
-			Message: err.Error(),
-		})
-	}
-	width := metadata.Size.Width
-	height := metadata.Size.Height
-
-	previewImage, err := image.Resize(1000, 0)
-	if err != nil {
-		c.JSON(http.StatusBadRequest, models.ErrorResponse{
-			Code:    http.StatusBadRequest,
-			Message: err.Error(),
-		})
-	}
-
-	thumbnailImage, err := image.Resize(300, 0)
-	if err != nil {
-		c.JSON(http.StatusBadRequest, models.ErrorResponse{
-			Code:    http.StatusBadRequest,
-			Message: err.Error(),
-		})
-	}
-
-	err = bimg.Write(previewFilePath, previewImage)
-	if err != nil {
-		c.JSON(http.StatusBadRequest, models.ErrorResponse{
-			Code:    http.StatusBadRequest,
-			Message: err.Error(),
-		})
-	}
-	err = bimg.Write(thumbnailFilePath, thumbnailImage)
-	if err != nil {
-		c.JSON(http.StatusBadRequest, models.ErrorResponse{
-			Code:    http.StatusBadRequest,
-			Message: err.Error(),
-		})
 	}
 
 	blob := database.Blob{
@@ -138,13 +176,29 @@ func uploadBlob(c *gin.Context) {
 		ThumbnailFilePath: filepath.Join("thumbnail", folder1, folder2, previewFilename),
 		Width:             width,
 		Height:            height,
+		Hash1:             hashSlice[0:2],
+		Hash2:             hashSlice[2:4],
+		Hash3:             hashSlice[4:6],
+		Hash4:             hashSlice[6:8],
 	}
 
 	database.DB.Create(&blob)
 
+	if len(similarPosts) > 0 {
+		c.JSON(http.StatusOK,
+			models.BlobSimilarResponse{
+				ID:      id,
+				Width:   width,
+				Height:  height,
+				Similar: similarPosts,
+			})
+		return
+	} else {
 		c.JSON(http.StatusOK, models.BlobResponse{
 			ID:     id,
 			Width:  width,
 			Height: height,
 		})
+		return
+	}
 }

pkg/database/blob.go

@@ -11,6 +11,10 @@ type Blob struct {
 	ThumbnailFilePath string
 	Width             int
 	Height            int
+	Hash1             []byte
+	Hash2             []byte
+	Hash3             []byte
+	Hash4             []byte
 	CreatedAt         time.Time
 	UpdatedAt         time.Time
 }

pkg/models/item.go

@@ -17,3 +17,8 @@ type PostListItem struct {
 	ImageThumbnailPath string   `json:"thumbnail_path"`
 	Tags               []string `json:"tags"`
 }
+
+type PostSimilarityListItem struct {
+	ID       string `json:"id"`
+	Distance int    `json:"distance"`
+}

pkg/models/responses.go

@@ -20,6 +20,12 @@ type BlobResponse struct {
 	Height int    `json:"height"`
 }
 
+type BlobSimilarResponse struct {
+	ID      string                   `json:"id"`
+	Width   int                      `json:"width"`
+	Height  int                      `json:"height"`
+	Similar []PostSimilarityListItem `json:"similar"`
+}
 type PostPaginationResponse struct {
 	CurrentPage int            `json:"currentPage"`
 	PostCount   int            `json:"postCount"`

pkg/services/auth.go

@@ -2,7 +2,6 @@ package services
 
 import (
 	"errors"
-	"log"
 	"time"
 
 	"github.com/Damillora/Shioriko/pkg/config"
@@ -13,7 +12,7 @@ import (
 
 func Login(username string, password string) *database.User {
 	user := GetUserFromUsername(username)
-	log.Println(user.Username)
+
 	err := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
 	if err != nil {
 		return nil

pkg/services/blob.go

@@ -0,0 +1,48 @@
+package services
+
+import (
+	"encoding/binary"
+
+	"github.com/Damillora/Shioriko/pkg/database"
+	"github.com/Damillora/Shioriko/pkg/models"
+	"github.com/corona10/goimagehash"
+)
+
+func SimilaritySearch(originalHashInt uint64) ([]models.PostSimilarityListItem, error) {
+	originalHash := goimagehash.NewImageHash(originalHashInt, goimagehash.PHash)
+
+	hashSlice := make([]byte, 8)
+	binary.LittleEndian.PutUint64(hashSlice, originalHashInt)
+
+	var blobs []database.Blob
+	database.DB.
+		Joins("inner join posts on posts.blob_id = blobs.id").
+		Where("hash1 = ?", hashSlice[0:2]).
+		Or("hash2 = ?", hashSlice[2:4]).
+		Or("hash3 = ?", hashSlice[4:6]).
+		Or("hash4 = ?", hashSlice[6:8]).
+		Find(&blobs)
+
+	posts := make([]models.PostSimilarityListItem, 0)
+	for _, blob := range blobs {
+		hash2 := append(blob.Hash1, blob.Hash2...)
+		hash3 := append(hash2, blob.Hash3...)
+		hash4 := append(hash3, blob.Hash4...)
+
+		hashInt := binary.LittleEndian.Uint64(hash4)
+
+		compareHash := goimagehash.NewImageHash(hashInt, goimagehash.PHash)
+
+		distance, _ := compareHash.Distance(originalHash)
+		if distance < 1 {
+			var post database.Post
+			database.DB.Where("blob_id = ?", blob.ID).Find(&post)
+			posts = append(posts, models.PostSimilarityListItem{
+				ID:       post.ID,
+				Distance: distance,
+			})
+		}
+	}
+	return posts, nil
+
+}

pkg/services/post.go

@@ -1,8 +1,6 @@
 package services
 
 import (
-	"log"
-
 	"github.com/Damillora/Shioriko/pkg/database"
 	"github.com/Damillora/Shioriko/pkg/models"
 	"github.com/google/uuid"
@@ -18,7 +16,7 @@ func GetPostAll(page int) []database.Post {
 
 func GetPostTags(page int, tagSyntax []string) []database.Post {
 	tags, err := ParseReadTags(tagSyntax)
-	log.Println(tags)
+
 	if err != nil {
 		return []database.Post{}
 	}

web/app/src/api.js

@@ -103,3 +103,15 @@ export async function postUpdate(id, { source_url, tags }) {
     })
     return response.data;
 }
+export async function postDelete({id}) {
+    const endpoint = url + "/api/post/"+id;
+    const response = await axios({
+        url: endpoint,
+        method: "DELETE",
+        headers: {
+            'Authorization': 'Bearer ' + current_token,
+        },
+        withCredentials: true,
+    })
+    return response.status == 200;
+}

web/app/src/routes/Post.svelte

@@ -1,8 +1,8 @@
 <script>
     import { onMount } from "svelte";
     import TagLink from "../TagLink.svelte";
-    import { getPost, postCreate } from "../api.js";
+    import { getPost, postCreate, postDelete } from "../api.js";
-    import { Link } from "svelte-routing";
+    import { Link, navigate } from "svelte-routing";
     export let id;
     let post;
     const getData = async () => {
@@ -20,6 +20,19 @@
     onMount(() => {
         getData();
     });
+
+    let modal_shown = false;
+
+    const deletePost = async () => {
+        toggleModal();
+        const success = await postDelete({ id });
+        if (success) {
+            navigate("/posts");
+        }
+    };
+    const toggleModal = () => {
+        modal_shown = !modal_shown;
+    };
 </script>
 
 <section class="hero is-primary">
@@ -42,6 +55,10 @@
                                 class="button is-primary"
                                 to="/post/edit/{post.id}">Edit</Link
                             >
+                            <button
+                                on:click|preventDefault={toggleModal}
+                                class="button is-danger">Delete</button
+                            >
                         </p>
                         <p>
                             Uploader: {post.uploader}
@@ -87,4 +104,27 @@
             </div>
         </section>
     </div>
+
+    <div class="modal" class:is-active={modal_shown}>
+        <div class="modal-background" />
+        <div class="modal-content">
+            Are you sure to delete post {post.id}?
+        </div>
+        <div class="modal-card">
+            <header class="modal-card-head">
+                <p class="modal-card-title">Delete post?</p>
+                <button class="delete" aria-label="close" />
+            </header>
+            <section class="modal-card-body" />
+            <footer class="modal-card-foot">
+                <button
+                    on:click|preventDefault={deletePost}
+                    class="button is-danger">Delete</button
+                >
+                <button class="button" on:click|preventDefault={toggleModal}
+                    >Cancel</button
+                >
+            </footer>
+        </div>
+    </div>
 {/if}

web/app/src/routes/Upload.svelte

@@ -1,12 +1,13 @@
 <script>
     import { uploadBlob, postCreate } from "../api.js";
-    import { navigate } from "svelte-routing";
+    import { navigate, Link } from "svelte-routing";
     import Tags from "svelte-tags-input";
     import AuthRequired from "../AuthRequired.svelte";
 
     let currentProgress = 0;
 
     let fileName = "";
+    let similar = [];
 
     let form = {
         blob_id: "",
@@ -21,9 +22,13 @@
 
     const onFileChange = async (e) => {
         fileName = "";
+        similar = [];
         var file = e.target.files[0];
         if (file) {
             var response = await uploadBlob({ file, onProgress });
+            if (response.similar) {
+                similar = response.similar;
+            }
             form.blob_id = response.id;
             fileName = file.name;
         }
@@ -31,7 +36,7 @@
 
     const onTagChange = (value) => {
         form.tags = value.detail.tags;
-    }
+    };
 
     const onSubmit = async () => {
         const response = await postCreate(form);
@@ -75,6 +80,17 @@
                 {#if fileName !== ""}
                     <p class="help">{fileName} uploaded</p>
                 {/if}
+                {#if similar.length > 0}
+                    <p class="help">
+                        Similar posts:
+                        {#each similar as post, i}
+                            <Link to="/post/{post.id}">{post.id}</Link>
+                            {#if i < similar.length - 1}
+                                ,
+                            {/if}
+                        {/each}
+                    </p>
+                {/if}
             </div>
             <div class="field">
                 <label for="source" class="label">Source URL</label>
@@ -91,7 +107,7 @@
             <div class="field">
                 <label for="tags" class="label">Tags</label>
                 <div class="control" id="tags">
-                    <Tags addKeys={[9,32]} on:tags={onTagChange} />
+                    <Tags addKeys={[9, 32]} on:tags={onTagChange} />
                 </div>
             </div>
             <div class="control">