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resource.go
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resource.go
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package server
import (
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"strconv"
"time"
"github.com/usememos/memos/api"
"github.com/usememos/memos/common"
metric "github.com/usememos/memos/plugin/metrics"
"github.com/labstack/echo/v4"
)
const (
// The max file size is 32MB.
maxFileSize = (32 * 8) << 20
)
func (s *Server) registerResourceRoutes(g *echo.Group) {
g.POST("/resource", func(c echo.Context) error {
ctx := c.Request().Context()
userID, ok := c.Get(getUserIDContextKey()).(int)
if !ok {
return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
}
if err := c.Request().ParseMultipartForm(maxFileSize); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Upload file overload max size").SetInternal(err)
}
file, err := c.FormFile("file")
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to get uploading file").SetInternal(err)
}
if file == nil {
return echo.NewHTTPError(http.StatusBadRequest, "Upload file not found").SetInternal(err)
}
filename := file.Filename
filetype := file.Header.Get("Content-Type")
size := file.Size
src, err := file.Open()
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to open file").SetInternal(err)
}
defer src.Close()
fileBytes, err := io.ReadAll(src)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to read file").SetInternal(err)
}
resourceCreate := &api.ResourceCreate{
CreatorID: userID,
Filename: filename,
Type: filetype,
Size: size,
Blob: fileBytes,
}
resource, err := s.Store.CreateResource(ctx, resourceCreate)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create resource").SetInternal(err)
}
s.Collector.Collect(ctx, &metric.Metric{
Name: "resource created",
})
c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
if err := json.NewEncoder(c.Response().Writer).Encode(composeResponse(resource)); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode resource response").SetInternal(err)
}
return nil
})
g.GET("/resource", func(c echo.Context) error {
ctx := c.Request().Context()
userID, ok := c.Get(getUserIDContextKey()).(int)
if !ok {
return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
}
resourceFind := &api.ResourceFind{
CreatorID: &userID,
}
list, err := s.Store.FindResourceList(ctx, resourceFind)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to fetch resource list").SetInternal(err)
}
for _, resource := range list {
memoResourceList, err := s.Store.FindMemoResourceList(ctx, &api.MemoResourceFind{
ResourceID: &resource.ID,
})
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find memo resource list").SetInternal(err)
}
resource.LinkedMemoAmount = len(memoResourceList)
}
c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
if err := json.NewEncoder(c.Response().Writer).Encode(composeResponse(list)); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode resource list response").SetInternal(err)
}
return nil
})
g.GET("/resource/:resourceId", func(c echo.Context) error {
ctx := c.Request().Context()
resourceID, err := strconv.Atoi(c.Param("resourceId"))
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("ID is not a number: %s", c.Param("resourceId"))).SetInternal(err)
}
userID, ok := c.Get(getUserIDContextKey()).(int)
if !ok {
return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
}
resourceFind := &api.ResourceFind{
ID: &resourceID,
CreatorID: &userID,
}
resource, err := s.Store.FindResource(ctx, resourceFind)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to fetch resource").SetInternal(err)
}
c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
if err := json.NewEncoder(c.Response().Writer).Encode(composeResponse(resource)); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode resource response").SetInternal(err)
}
return nil
})
g.GET("/resource/:resourceId/blob", func(c echo.Context) error {
ctx := c.Request().Context()
resourceID, err := strconv.Atoi(c.Param("resourceId"))
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("ID is not a number: %s", c.Param("resourceId"))).SetInternal(err)
}
userID, ok := c.Get(getUserIDContextKey()).(int)
if !ok {
return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
}
resourceFind := &api.ResourceFind{
ID: &resourceID,
CreatorID: &userID,
}
resource, err := s.Store.FindResource(ctx, resourceFind)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to fetch resource").SetInternal(err)
}
c.Response().Writer.WriteHeader(http.StatusOK)
c.Response().Writer.Header().Set("Content-Type", resource.Type)
c.Response().Writer.Header().Set(echo.HeaderContentSecurityPolicy, "default-src 'self'")
if _, err := c.Response().Writer.Write(resource.Blob); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to write resource blob").SetInternal(err)
}
return nil
})
g.PATCH("/resource/:resourceId", func(c echo.Context) error {
ctx := c.Request().Context()
userID, ok := c.Get(getUserIDContextKey()).(int)
if !ok {
return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
}
resourceID, err := strconv.Atoi(c.Param("resourceId"))
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("ID is not a number: %s", c.Param("resourceId"))).SetInternal(err)
}
resourceFind := &api.ResourceFind{
ID: &resourceID,
}
resource, err := s.Store.FindResource(ctx, resourceFind)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find resource").SetInternal(err)
}
if resource.CreatorID != userID {
return echo.NewHTTPError(http.StatusUnauthorized, "Unauthorized")
}
currentTs := time.Now().Unix()
resourcePatch := &api.ResourcePatch{
UpdatedTs: ¤tTs,
}
if err := json.NewDecoder(c.Request().Body).Decode(resourcePatch); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Malformatted patch resource request").SetInternal(err)
}
resource.ID = resourceID
resource, err = s.Store.PatchResource(ctx, resourcePatch)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to patch resource").SetInternal(err)
}
c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
if err := json.NewEncoder(c.Response().Writer).Encode(composeResponse(resource)); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode resource response").SetInternal(err)
}
return nil
})
g.DELETE("/resource/:resourceId", func(c echo.Context) error {
ctx := c.Request().Context()
userID, ok := c.Get(getUserIDContextKey()).(int)
if !ok {
return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
}
resourceID, err := strconv.Atoi(c.Param("resourceId"))
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("ID is not a number: %s", c.Param("resourceId"))).SetInternal(err)
}
resource, err := s.Store.FindResource(ctx, &api.ResourceFind{
ID: &resourceID,
CreatorID: &userID,
})
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find resource").SetInternal(err)
}
if resource.CreatorID != userID {
return echo.NewHTTPError(http.StatusUnauthorized, "Unauthorized")
}
resourceDelete := &api.ResourceDelete{
ID: resourceID,
}
if err := s.Store.DeleteResource(ctx, resourceDelete); err != nil {
if common.ErrorCode(err) == common.NotFound {
return echo.NewHTTPError(http.StatusNotFound, fmt.Sprintf("Resource ID not found: %d", resourceID))
}
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to delete resource").SetInternal(err)
}
return c.JSON(http.StatusOK, true)
})
}
func (s *Server) registerResourcePublicRoutes(g *echo.Group) {
g.GET("/r/:resourceId/:filename", func(c echo.Context) error {
ctx := c.Request().Context()
resourceID, err := strconv.Atoi(c.Param("resourceId"))
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("ID is not a number: %s", c.Param("resourceId"))).SetInternal(err)
}
filename, err := url.QueryUnescape(c.Param("filename"))
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("filename is invalid: %s", c.Param("filename"))).SetInternal(err)
}
resourceFind := &api.ResourceFind{
ID: &resourceID,
Filename: &filename,
}
resource, err := s.Store.FindResource(ctx, resourceFind)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, fmt.Sprintf("Failed to fetch resource ID: %v", resourceID)).SetInternal(err)
}
c.Response().Writer.Header().Set("Content-Type", resource.Type)
c.Response().Writer.WriteHeader(http.StatusOK)
c.Response().Writer.Header().Set(echo.HeaderCacheControl, "max-age=31536000, immutable")
c.Response().Writer.Header().Set(echo.HeaderContentSecurityPolicy, "default-src 'self'")
if _, err := c.Response().Writer.Write(resource.Blob); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to write response").SetInternal(err)
}
return nil
})
}