Added backend

2022-02-06 22:51:36 +01:00
parent 77599e26f8
commit 431cadaeea
35 changed files with 2422 additions and 0 deletions
--- a/backend/api/assets.go
+++ b/backend/api/assets.go
@@ -0,0 +1,140 @@
+package api
+
+import (
+	"TheAdversary/config"
+	"TheAdversary/database"
+	"TheAdversary/schema"
+	"encoding/json"
+	"gorm.io/gorm/clause"
+	"io"
+	"net/http"
+	"net/url"
+	"path"
+	"strconv"
+)
+
+var assetsPayload struct {
+	ArticleId int    `json:"article_id"`
+	Content   string `json:"content"`
+}
+
+func Assets(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case http.MethodGet:
+		assetsGet(w, r)
+	case http.MethodPost:
+		assetsPost(w, r)
+	case http.MethodDelete:
+		assetsDelete(w, r)
+	}
+}
+
+func assetsGet(w http.ResponseWriter, r *http.Request) {
+	_, ok := authorizedSession(r)
+	if !ok {
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	query := r.URL.Query()
+	request := database.GetDB().Table("assets")
+
+	if query.Has("q") {
+		request.Where("LOWER(name) LIKE ?", "%"+query.Get("q")+"%")
+	}
+	limit := 20
+	if query.Has("limit") {
+		var err error
+		limit, err = strconv.Atoi(query.Get("limit"))
+		if err != nil {
+			ApiError{"invalid 'limit' parameter", http.StatusUnprocessableEntity}.Send(w)
+			return
+		}
+	}
+	request.Limit(limit)
+
+	var assets []schema.Asset
+	request.Find(&assets)
+
+	for _, asset := range assets {
+		asset.Link = path.Join(config.SubPath, "assets", asset.Link)
+	}
+
+	w.WriteHeader(http.StatusOK)
+	json.NewEncoder(w).Encode(&assets)
+}
+
+func assetsPost(w http.ResponseWriter, r *http.Request) {
+	_, ok := authorizedSession(r)
+	if !ok {
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	file, header, err := r.FormFile("file")
+	if err != nil {
+		if err == http.ErrMissingFile {
+			ApiError{Message: "file is missing", Code: http.StatusUnprocessableEntity}.Send(w)
+		} else {
+			ApiError{Message: "could not parse file" + err.Error(), Code: http.StatusInternalServerError}.Send(w)
+		}
+		return
+	}
+	defer file.Close()
+
+	var name string
+	if name = r.FormValue("name"); name == "" {
+		name = header.Filename
+	}
+
+	rawData, err := io.ReadAll(file)
+	if err != nil {
+		ApiError{Message: "failed to read file", Code: http.StatusInternalServerError}.Send(w)
+		return
+	}
+
+	tmpDatabaseSchema := struct {
+		Id   int
+		Name string
+		Data []byte
+		Link string
+	}{Name: name, Data: rawData, Link: url.PathEscape(name)}
+
+	if database.GetDB().Table("assets").Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "name"}},
+		DoNothing: true,
+	}).Create(&tmpDatabaseSchema).RowsAffected == 0 {
+		w.WriteHeader(http.StatusConflict)
+	} else {
+		w.WriteHeader(http.StatusCreated)
+		json.NewEncoder(w).Encode(schema.Asset{
+			Id:   tmpDatabaseSchema.Id,
+			Name: tmpDatabaseSchema.Name,
+			Link: path.Join(config.SubPath, "assets", tmpDatabaseSchema.Link),
+		})
+	}
+}
+
+type assetsDeletePayload struct {
+	Id int `json:"id"`
+}
+
+func assetsDelete(w http.ResponseWriter, r *http.Request) {
+	_, ok := authorizedSession(r)
+	if !ok {
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	var payload assetsDeletePayload
+	if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
+		InvalidJson.Send(w)
+		return
+	}
+
+	if database.GetDB().Table("assets").Delete(schema.Asset{}, payload.Id).RowsAffected == 0 {
+		w.WriteHeader(http.StatusNotFound)
+	} else {
+		w.WriteHeader(http.StatusOK)
+	}
+}