Files
core/http/handler/api/cluster.go
2023-05-05 17:31:57 +02:00

382 lines
10 KiB
Go

package api
import (
"net/http"
"regexp"
"sort"
"strings"
"github.com/datarhei/core/v16/cluster"
"github.com/datarhei/core/v16/http/api"
"github.com/datarhei/core/v16/http/handler/util"
"github.com/labstack/echo/v4"
"github.com/lithammer/shortuuid/v4"
)
// The ClusterHandler type provides handler functions for manipulating the cluster config.
type ClusterHandler struct {
cluster cluster.Cluster
proxy cluster.ProxyReader
prefix *regexp.Regexp
}
// NewCluster return a new ClusterHandler type. You have to provide a cluster.
func NewCluster(cluster cluster.Cluster) *ClusterHandler {
return &ClusterHandler{
cluster: cluster,
proxy: cluster.ProxyReader(),
prefix: regexp.MustCompile(`^[a-z]+:`),
}
}
// GetProxyNodes returns the list of proxy nodes in the cluster
// @Summary List of proxy nodes in the cluster
// @Description List of proxy nodes in the cluster
// @Tags v16.?.?
// @ID cluster-3-get-proxy-nodes
// @Produce json
// @Success 200 {array} api.ClusterNode
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/proxy [get]
func (h *ClusterHandler) GetProxyNodes(c echo.Context) error {
nodes := h.proxy.ListNodes()
list := []api.ClusterNode{}
for _, node := range nodes {
state := node.State()
n := api.ClusterNode{
Address: node.Address(),
ID: state.ID,
LastPing: state.LastPing.Unix(),
LastUpdate: state.LastUpdate.Unix(),
Latency: state.Latency.Seconds() * 1000,
State: state.State,
}
list = append(list, n)
}
return c.JSON(http.StatusOK, list)
}
// GetProxyNode returns the proxy node with the given ID
// @Summary List a proxy node by its ID
// @Description List a proxy node by its ID
// @Tags v16.?.?
// @ID cluster-3-get-proxy-node
// @Produce json
// @Param id path string true "Node ID"
// @Success 200 {object} api.ClusterNode
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/proxy/node/{id} [get]
func (h *ClusterHandler) GetProxyNode(c echo.Context) error {
id := util.PathParam(c, "id")
peer, err := h.proxy.GetNode(id)
if err != nil {
return api.Err(http.StatusNotFound, "Node not found", "%s", err)
}
state := peer.State()
node := api.ClusterNode{
Address: peer.Address(),
ID: state.ID,
LastUpdate: state.LastUpdate.Unix(),
State: state.State,
}
return c.JSON(http.StatusOK, node)
}
// GetProxyNodeFiles returns the files from the proxy node with the given ID
// @Summary List the files of a proxy node by its ID
// @Description List the files of a proxy node by its ID
// @Tags v16.?.?
// @ID cluster-3-get-proxy-node-files
// @Produce json
// @Param id path string true "Node ID"
// @Success 200 {object} api.ClusterNodeFiles
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/proxy/node/{id}/files [get]
func (h *ClusterHandler) GetProxyNodeFiles(c echo.Context) error {
id := util.PathParam(c, "id")
peer, err := h.proxy.GetNode(id)
if err != nil {
return api.Err(http.StatusNotFound, "Node not found", "%s", err)
}
files := api.ClusterNodeFiles{}
state := peer.State()
sort.Strings(state.Files)
for _, path := range state.Files {
prefix := strings.TrimSuffix(h.prefix.FindString(path), ":")
path = h.prefix.ReplaceAllString(path, "")
files[prefix] = append(files[prefix], path)
}
return c.JSON(http.StatusOK, files)
}
// GetCluster returns the list of nodes in the cluster
// @Summary List of nodes in the cluster
// @Description List of nodes in the cluster
// @Tags v16.?.?
// @ID cluster-3-get-cluster
// @Produce json
// @Success 200 {object} api.ClusterAbout
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster [get]
func (h *ClusterHandler) About(c echo.Context) error {
state, _ := h.cluster.About()
about := api.ClusterAbout{
ID: state.ID,
Address: state.Address,
ClusterAPIAddress: state.ClusterAPIAddress,
CoreAPIAddress: state.CoreAPIAddress,
Nodes: []api.ClusterServer{},
Stats: api.ClusterStats{
State: state.Stats.State,
LastContact: state.Stats.LastContact.Seconds() * 1000,
NumPeers: state.Stats.NumPeers,
},
}
for _, n := range state.Nodes {
about.Nodes = append(about.Nodes, api.ClusterServer{
ID: n.ID,
Address: n.Address,
Voter: n.Voter,
Leader: n.Leader,
})
}
return c.JSON(http.StatusOK, about)
}
// Add adds a new process to the cluster
// @Summary Add a new process
// @Description Add a new FFmpeg process
// @Tags v16.?.?
// @ID cluster-3-add-process
// @Accept json
// @Produce json
// @Param config body api.ProcessConfig true "Process config"
// @Success 200 {object} api.ProcessConfig
// @Failure 400 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/process [post]
func (h *ClusterHandler) AddProcess(c echo.Context) error {
process := api.ProcessConfig{
ID: shortuuid.New(),
Type: "ffmpeg",
Autostart: true,
}
if err := util.ShouldBindJSON(c, &process); err != nil {
return api.Err(http.StatusBadRequest, "Invalid JSON", "%s", err)
}
if process.Type != "ffmpeg" {
return api.Err(http.StatusBadRequest, "Unsupported process type", "Supported process types are: ffmpeg")
}
if len(process.Input) == 0 || len(process.Output) == 0 {
return api.Err(http.StatusBadRequest, "At least one input and one output need to be defined")
}
config := process.Marshal()
if err := h.cluster.AddProcess("", config); err != nil {
return api.Err(http.StatusBadRequest, "Invalid process config", "%s", err.Error())
}
return c.JSON(http.StatusOK, process)
}
// Delete deletes the process with the given ID from the cluster
// @Summary Delete a process by its ID
// @Description Delete a process by its ID
// @Tags v16.?.?
// @ID cluster-3-delete-process
// @Produce json
// @Param id path string true "Process ID"
// @Success 200 {string} string
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/process/{id} [delete]
func (h *ClusterHandler) DeleteProcess(c echo.Context) error {
id := util.PathParam(c, "id")
if err := h.cluster.RemoveProcess("", id); err != nil {
return api.Err(http.StatusInternalServerError, "Process can't be deleted", "%s", err)
}
return c.JSON(http.StatusOK, "OK")
}
/*
// AddNode adds a new node
// @Summary Add a new node
// @Description Add a new node to the cluster
// @ID cluster-3-add-node
// @Accept json
// @Produce json
// @Param config body api.ClusterNodeConfig true "Node config"
// @Success 200 {string} string
// @Failure 400 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/node [post]
func (h *ClusterHandler) AddNode(c echo.Context) error {
node := api.ClusterNodeConfig{}
if err := util.ShouldBindJSON(c, &node); err != nil {
return api.Err(http.StatusBadRequest, "Invalid JSON", "%s", err)
}
id, err := h.cluster.AddNodeX(node.Address, "", "")
if err != nil {
return api.Err(http.StatusBadRequest, "Failed to add node", "%s", err)
}
return c.JSON(http.StatusOK, id)
}
// DeleteNode deletes the node with the given ID
// @Summary Delete a node by its ID
// @Description Delete a node by its ID
// @ID cluster-3-delete-node
// @Produce json
// @Param id path string true "Node ID"
// @Success 200 {string} string
// @Failure 404 {object} api.Error
// @Failure 500 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/node/{id} [delete]
func (h *ClusterHandler) DeleteNode(c echo.Context) error {
id := util.PathParam(c, "id")
if err := h.cluster.RemoveNodeX(id); err != nil {
if err == cluster.ErrNodeNotFound {
return api.Err(http.StatusNotFound, err.Error(), "%s", id)
}
return api.Err(http.StatusInternalServerError, "Failed to remove node", "%s", err)
}
return c.JSON(http.StatusOK, "OK")
}
// GetNode returns the node with the given ID
// @Summary List a node by its ID
// @Description List a node by its ID
// @ID cluster-3-get-node
// @Produce json
// @Param id path string true "Node ID"
// @Success 200 {object} api.ClusterNode
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/node/{id} [get]
func (h *ClusterHandler) GetNode(c echo.Context) error {
id := util.PathParam(c, "id")
peer, err := h.cluster.GetNodeX(id)
if err != nil {
return api.Err(http.StatusNotFound, "Node not found", "%s", err)
}
state := peer.State()
node := api.ClusterNode{
Address: peer.Address(),
ID: state.ID,
LastUpdate: state.LastUpdate.Unix(),
State: state.State,
}
return c.JSON(http.StatusOK, node)
}
// GetNodeProxy returns the files from the node with the given ID
// @Summary List the files of a node by its ID
// @Description List the files of a node by its ID
// @ID cluster-3-get-node-proxy
// @Produce json
// @Param id path string true "Node ID"
// @Success 200 {object} api.ClusterNodeFiles
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/node/{id}/proxy [get]
func (h *ClusterHandler) GetNodeProxy(c echo.Context) error {
id := util.PathParam(c, "id")
peer, err := h.cluster.GetNodeX(id)
if err != nil {
return api.Err(http.StatusNotFound, "Node not found", "%s", err)
}
files := api.ClusterNodeFiles{}
state := peer.State()
sort.Strings(state.Files)
for _, path := range state.Files {
prefix := strings.TrimSuffix(h.prefix.FindString(path), ":")
path = h.prefix.ReplaceAllString(path, "")
files[prefix] = append(files[prefix], path)
}
return c.JSON(http.StatusOK, files)
}
// UpdateNode replaces an existing node
// @Summary Replaces an existing node
// @Description Replaces an existing node and returns the new node ID
// @ID cluster-3-update-node
// @Accept json
// @Produce json
// @Param id path string true "Node ID"
// @Param config body api.ClusterNodeConfig true "Node config"
// @Success 200 {string} string
// @Failure 400 {object} api.Error
// @Failure 404 {object} api.Error
// @Security ApiKeyAuth
// @Router /api/v3/cluster/node/{id} [put]
func (h *ClusterHandler) UpdateNode(c echo.Context) error {
id := util.PathParam(c, "id")
node := api.ClusterNodeConfig{}
if err := util.ShouldBindJSON(c, &node); err != nil {
return api.Err(http.StatusBadRequest, "Invalid JSON", "%s", err)
}
if err := h.cluster.RemoveNode(id); err != nil {
if err == cluster.ErrNodeNotFound {
return api.Err(http.StatusNotFound, err.Error(), "%s", id)
}
return api.Err(http.StatusBadRequest, "Failed to remove node", "%s", err)
}
id, err := h.cluster.AddNodeX(node.Address, "", "")
if err != nil {
return api.Err(http.StatusBadRequest, "Failed to add node", "%s", err)
}
return c.JSON(http.StatusOK, id)
}
*/