mirror of https://github.com/portainer/portainer
121 lines
3.8 KiB
Go
121 lines
3.8 KiB
Go
package templates
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import (
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"encoding/json"
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"errors"
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"log"
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"net/http"
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"github.com/asaskevich/govalidator"
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httperror "github.com/portainer/libhttp/error"
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"github.com/portainer/libhttp/request"
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"github.com/portainer/libhttp/response"
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portainer "github.com/portainer/portainer/api"
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)
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type filePayload struct {
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// URL of a git repository where the file is stored
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RepositoryURL string `example:"https://github.com/portainer/portainer-compose" validate:"required"`
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// Path to the file inside the git repository
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ComposeFilePathInRepository string `example:"./subfolder/docker-compose.yml" validate:"required"`
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}
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type fileResponse struct {
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// The requested file content
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FileContent string `example: "version:2"`
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}
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func (payload *filePayload) Validate(r *http.Request) error {
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if govalidator.IsNull(payload.RepositoryURL) {
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return errors.New("Invalid repository url")
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}
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if govalidator.IsNull(payload.ComposeFilePathInRepository) {
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return errors.New("Invalid file path")
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}
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return nil
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}
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func (handler *Handler) ifRequestedTemplateExists(payload *filePayload) *httperror.HandlerError {
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settings, err := handler.DataStore.Settings().Settings()
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve settings from the database", err}
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}
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resp, err := http.Get(settings.TemplatesURL)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve templates via the network", err}
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}
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defer resp.Body.Close()
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var templates struct {
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Templates []portainer.Template
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}
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err = json.NewDecoder(resp.Body).Decode(&templates)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to parse template file", err}
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}
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for _, t := range templates.Templates {
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if t.Repository.URL == payload.RepositoryURL && t.Repository.StackFile == payload.ComposeFilePathInRepository {
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return nil
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}
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}
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return &httperror.HandlerError{http.StatusInternalServerError, "Invalid template", errors.New("requested template does not exist")}
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}
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// @id TemplateFile
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// @summary Get a template's file
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// @description Get a template's file
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// @description **Access policy**: authenticated
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// @tags templates
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// @security ApiKeyAuth
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// @security jwt
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// @accept json
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// @produce json
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// @param body body filePayload true "File details"
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// @success 200 {object} fileResponse "Success"
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// @failure 400 "Invalid request"
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// @failure 500 "Server error"
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// @router /templates/file [post]
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func (handler *Handler) templateFile(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
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var payload filePayload
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err := request.DecodeAndValidateJSONPayload(r, &payload)
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if err != nil {
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return &httperror.HandlerError{http.StatusBadRequest, "Invalid request payload", err}
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}
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if err := handler.ifRequestedTemplateExists(&payload); err != nil {
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return err
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}
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projectPath, err := handler.FileService.GetTemporaryPath()
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to create temporary folder", err}
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}
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defer handler.cleanUp(projectPath)
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err = handler.GitService.CloneRepository(projectPath, payload.RepositoryURL, "", "", "")
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to clone git repository", err}
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}
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fileContent, err := handler.FileService.GetFileContent(projectPath, payload.ComposeFilePathInRepository)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Failed loading file content", err}
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}
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return response.JSON(w, fileResponse{FileContent: string(fileContent)})
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}
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func (handler *Handler) cleanUp(projectPath string) error {
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err := handler.FileService.RemoveDirectory(projectPath)
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if err != nil {
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log.Printf("http error: Unable to cleanup stack creation (err=%s)\n", err)
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}
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return nil
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}
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