Add admin component (#6928)

* init version

* relocate

* add s3 bucket link

* refactor handlers into weed/admin folder

* fix login logout

* adding favicon

* remove fall back to http get topology

* grpc dial option, disk total capacity

* show filer count

* fix each volume disk usage

* add filers to dashboard

* adding hosts, volumes, collections

* refactor code and menu

* remove "refresh" button

* fix data for collections

* rename cluster hosts into volume servers

* add masters, filers

* reorder

* adding file browser

* create folder and upload files

* add filer version, created at time

* remove mock data

* remove fields

* fix submenu item highlighting

* fix bucket creation

* purge files

* delete multiple

* fix bucket creation

* remove region from buckets

* add object store with buckets and users

* rendering permission

* refactor

* get bucket objects and size

* link to file browser

* add file size and count for collections page

* paginate the volumes

* fix possible SSRF

https://github.com/seaweedfs/seaweedfs/pull/6928/checks?check_run_id=45108469801

* Update weed/command/admin.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/command/admin.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix build

* import

* remove filer CLI option

* remove filer option

* remove CLI options

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

1 files changed, 128 insertions, 0 deletions

diff --git a/weed/admin/dash/handler_auth.go b/weed/admin/dash/handler_auth.go
new file mode 100644
index 000000000..c0b7d5636
--- /dev/null
+++ b/weed/admin/dash/handler_auth.go
@@ -0,0 +1,128 @@
+package dash
+
+import (
+	"net/http"
+
+	"github.com/gin-contrib/sessions"
+	"github.com/gin-gonic/gin"
+)
+
+// ShowLogin displays the login page
+func (s *AdminServer) ShowLogin(c *gin.Context) {
+	// If authentication is not required, redirect to admin
+	session := sessions.Default(c)
+	if session.Get("authenticated") == true {
+		c.Redirect(http.StatusSeeOther, "/admin")
+		return
+	}
+
+	// For now, return a simple login form as JSON
+	c.HTML(http.StatusOK, "login.html", gin.H{
+		"title": "SeaweedFS Admin Login",
+		"error": c.Query("error"),
+	})
+}
+
+// HandleLogin handles login form submission
+func (s *AdminServer) HandleLogin(username, password string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		loginUsername := c.PostForm("username")
+		loginPassword := c.PostForm("password")
+
+		if loginUsername == username && loginPassword == password {
+			session := sessions.Default(c)
+			session.Set("authenticated", true)
+			session.Set("username", loginUsername)
+			session.Save()
+
+			c.Redirect(http.StatusSeeOther, "/admin")
+			return
+		}
+
+		// Authentication failed
+		c.Redirect(http.StatusSeeOther, "/login?error=Invalid credentials")
+	}
+}
+
+// HandleLogout handles user logout
+func (s *AdminServer) HandleLogout(c *gin.Context) {
+	session := sessions.Default(c)
+	session.Clear()
+	session.Save()
+	c.Redirect(http.StatusSeeOther, "/login")
+}
+
+// Additional methods for admin functionality
+func (s *AdminServer) GetClusterTopologyHandler(c *gin.Context) {
+	topology, err := s.GetClusterTopology()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, topology)
+}
+
+func (s *AdminServer) GetMasters(c *gin.Context) {
+	c.JSON(http.StatusOK, gin.H{"masters": []string{s.masterAddress}})
+}
+
+func (s *AdminServer) GetVolumeServers(c *gin.Context) {
+	topology, err := s.GetClusterTopology()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"volume_servers": topology.VolumeServers})
+}
+
+func (s *AdminServer) AssignVolume(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Volume assignment not yet implemented"})
+}
+
+func (s *AdminServer) ListVolumes(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Volume listing not yet implemented"})
+}
+
+func (s *AdminServer) CreateVolume(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Volume creation not yet implemented"})
+}
+
+func (s *AdminServer) DeleteVolume(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Volume deletion not yet implemented"})
+}
+
+func (s *AdminServer) ReplicateVolume(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Volume replication not yet implemented"})
+}
+
+func (s *AdminServer) BrowseFiles(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "File browsing not yet implemented"})
+}
+
+func (s *AdminServer) UploadFile(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "File upload not yet implemented"})
+}
+
+func (s *AdminServer) DeleteFile(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "File deletion not yet implemented"})
+}
+
+func (s *AdminServer) ShowMetrics(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Metrics display not yet implemented"})
+}
+
+func (s *AdminServer) GetMetricsData(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Metrics data not yet implemented"})
+}
+
+func (s *AdminServer) TriggerGC(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Garbage collection not yet implemented"})
+}
+
+func (s *AdminServer) CompactVolumes(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Volume compaction not yet implemented"})
+}
+
+func (s *AdminServer) GetMaintenanceStatus(c *gin.Context) {
+	c.JSON(http.StatusNotImplemented, gin.H{"message": "Maintenance status not yet implemented"})
+}