:sparkles: Support for searching asset content https://github.com/siyuan-note/siyuan/issues/8874

kernel/api/router.go

@@ -145,6 +145,7 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/search/searchAsset", model.CheckAuth, searchAsset)
 	ginServer.Handle("POST", "/api/search/findReplace", model.CheckAuth, model.CheckReadonly, findReplace)
 	ginServer.Handle("POST", "/api/search/fullTextSearchAssetContent", model.CheckAuth, fullTextSearchAssetContent)
+	ginServer.Handle("POST", "/api/search/getAssetContent", model.CheckAuth, getAssetContent)
 
 	ginServer.Handle("POST", "/api/block/getBlockInfo", model.CheckAuth, getBlockInfo)
 	ginServer.Handle("POST", "/api/block/getBlockDOM", model.CheckAuth, getBlockDOM)

kernel/api/search.go

@@ -26,6 +26,25 @@ import (
 	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
+func getAssetContent(c *gin.Context) {
+	ret := gulu.Ret.NewResult()
+	defer c.JSON(http.StatusOK, ret)
+
+	arg, ok := util.JsonArg(c, ret)
+	if !ok {
+		return
+	}
+
+	id := arg["id"].(string)
+	query := arg["query"].(string)
+	queryMethod := int(arg["queryMethod"].(float64))
+
+	ret.Data = map[string]interface{}{
+		"assetContent": model.GetAssetContent(id, query, queryMethod),
+	}
+	return
+}
+
 func fullTextSearchAssetContent(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)

kernel/model/asset_content.go

@@ -47,6 +47,31 @@ type AssetContent struct {
 	Content string `json:"content"`
 }
 
+func GetAssetContent(id, query string, queryMethod int) (ret *AssetContent) {
+	if "" != query && (0 == queryMethod || 1 == queryMethod) {
+		if 0 == queryMethod {
+			query = stringQuery(query)
+		}
+	}
+
+	table := "asset_contents_fts_case_insensitive"
+	filter := " id = '" + id + "'"
+	if "" != query {
+		filter += " AND `" + table + "` MATCH '" + buildAssetContentColumnFilter() + ":(" + query + ")'"
+	}
+
+	projections := "id, name, ext, path, size, updated, " +
+		"highlight(" + table + ", 6, '<mark>', '</mark>') AS content"
+	stmt := "SELECT " + projections + " FROM " + table + " WHERE " + filter
+	assetContents := sql.SelectAssetContentsRawStmt(stmt, 1, 1)
+	results := fromSQLAssetContents(&assetContents, 36)
+	if 1 > len(results) {
+		return
+	}
+	ret = results[0]
+	return
+}
+
 // FullTextSearchAssetContent 搜索资源文件内容。
 //
 // method：0：关键字，1：查询语法，2：SQL，3：正则表达式