backend/servers/browsers.go

package servers

import (
	"context"
	"encoding/json"
	"fmt"

	"acooldomain.co/backend/auth"
	"acooldomain.co/backend/models"
	"github.com/docker/docker/api/types/container"
	"github.com/docker/docker/api/types/filters"
	"github.com/docker/docker/api/types/volume"
	"github.com/docker/docker/client"
	"github.com/gin-gonic/gin"
	"go.mongodb.org/mongo-driver/mongo"
)

func (con Connection) getBrowserInfo(volume volume.Volume) (*models.FileBrowserInfo, error) {
	serverInfo, err := con.getServerInfo(volume)
	if err != nil {
		return nil, err
	}

	containers, err := con.dockerClient.ContainerList(context.TODO(), container.ListOptions{
		All:     true,
		Filters: filters.NewArgs(filters.Arg("label", "type=FILE_BROWSER"), filters.Arg("label", fmt.Sprintf("volume_id=%s", volume.Name))),
	})
	if err != nil || len(containers) == 0 {
		return nil, nil
	}

	container := containers[0]
	jsonData, err := json.Marshal(container.Labels)
	if err != nil {
		return nil, err
	}

	var browserInfo ContainerLabels
	err = json.Unmarshal(jsonData, &browserInfo)

	if err != nil {
		return nil, err
	}

	return &models.FileBrowserInfo{
		Id:          container.ID,
		OwnerId:     browserInfo.OwnerId,
		ConnectedTo: *serverInfo,
		Url:         serverInfo.Id[:12] + "." + DOMAIN,
	}, nil

}
func (con Connection) getBrowserInfoFromServerId(serverId string) (*models.FileBrowserInfo, error) {
	serverInfo, err := con.getServerInfoFromId(serverId)
	if err != nil {
		return nil, err
	}

	containers, err := con.dockerClient.ContainerList(context.TODO(), container.ListOptions{
		All:     true,
		Filters: filters.NewArgs(filters.Arg("label", "type=FILE_BROWSER"), filters.Arg("label", fmt.Sprintf("volume_id=%s", serverInfo.Id))),
	})
	if err != nil || len(containers) == 0 {
		return nil, nil
	}

	container := containers[0]
	jsonData, err := json.Marshal(container.Labels)
	if err != nil {
		return nil, err
	}

	var browserInfo ContainerLabels
	err = json.Unmarshal(jsonData, &browserInfo)

	if err != nil {
		return nil, err
	}

	return &models.FileBrowserInfo{
		Id:          container.ID,
		OwnerId:     browserInfo.OwnerId,
		ConnectedTo: *serverInfo,
		Url:         serverInfo.Id[:12] + ".browsers." + DOMAIN,
	}, nil

}

func (con Connection) GetBrowsers(ctx *gin.Context) {
	volumes, err := con.dockerClient.VolumeList(
		context.TODO(),
		volume.ListOptions{
			Filters: filters.NewArgs(filters.Arg("label", "type=GAME")),
		},
	)
	if err != nil {
		ctx.AbortWithError(500, err)
	}

	var servers []models.FileBrowserInfo = make([]models.FileBrowserInfo, 0, len(volumes.Volumes))

	for _, volume := range volumes.Volumes {
		browserInfo, err := con.getBrowserInfo(*volume)
		if err != nil {
			ctx.AbortWithError(500, err)
		}
		if browserInfo == nil {
			continue
		}

		servers = append(servers, *browserInfo)
	}

	if err != nil {
		ctx.AbortWithError(500, err)
	}

	ctx.JSON(200, servers)
}

func (con Connection) StopBrowser(ctx *gin.Context) {
	serverId := ctx.Param("server_id")
	containersList, err := con.dockerClient.ContainerList(context.TODO(), container.ListOptions{
		Filters: filters.NewArgs(filters.Arg("label", "volume_id="+serverId), filters.Arg("label", "type=FILE_BROWSER")),
	})
	if err != nil {
		ctx.AbortWithError(500, err)
		return
	}
	if len(containersList) == 0 {
		ctx.Status(200)
		return
	}

	for _, containerData := range containersList {
		con.dockerClient.ContainerStop(context.TODO(), containerData.ID, container.StopOptions{})
	}
	ctx.Status(200)
}

func LoadBrowsersGroup(group *gin.RouterGroup, mongo_client *mongo.Client, config models.GlobalConfig) {
	apiClient, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
	if err != nil {
		panic(err)
	}
	defer apiClient.Close()

	connection := Connection{databaseConnection: mongo_client, dockerClient: apiClient}
	authConnection := auth.Connection{DatabaseConnection: mongo_client}
	group.GET("", auth.AuthorizedTo(0), connection.GetBrowsers)
	group.POST("/:server_id/stop", auth.AuthorizedTo(models.Browse, authConnection.ServerAuthorized(models.Browse)), connection.StopBrowser)
}