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login.go
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login.go
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package commands
import (
"cf/api"
"cf/configuration"
"cf/models"
"cf/requirements"
"cf/terminal"
"github.com/codegangsta/cli"
"strconv"
)
const maxLoginTries = 3
const maxChoices = 50
type Login struct {
ui terminal.UI
config configuration.ReadWriter
authenticator api.AuthenticationRepository
endpointRepo api.EndpointRepository
orgRepo api.OrganizationRepository
spaceRepo api.SpaceRepository
}
func NewLogin(ui terminal.UI,
config configuration.ReadWriter,
authenticator api.AuthenticationRepository,
endpointRepo api.EndpointRepository,
orgRepo api.OrganizationRepository,
spaceRepo api.SpaceRepository) (cmd Login) {
return Login{
ui: ui,
config: config,
authenticator: authenticator,
endpointRepo: endpointRepo,
orgRepo: orgRepo,
spaceRepo: spaceRepo,
}
}
func (cmd Login) GetRequirements(requirementsFactory requirements.Factory, c *cli.Context) (reqs []requirements.Requirement, err error) {
return
}
func (cmd Login) Run(c *cli.Context) {
cmd.config.ClearSession()
endpoint, skipSSL := cmd.decideEndpoint(c)
NewApi(cmd.ui, cmd.config, cmd.endpointRepo).setApiEndpoint(endpoint, skipSSL)
defer func() {
cmd.ui.Say("")
cmd.ui.ShowConfiguration(cmd.config)
}()
cmd.authenticate(c)
orgIsSet := cmd.setOrganization(c)
if orgIsSet {
cmd.setSpace(c)
}
}
func (cmd Login) decideEndpoint(c *cli.Context) (string, bool) {
endpoint := c.String("a")
skipSSL := c.Bool("skip-ssl-validation")
if endpoint == "" {
endpoint = cmd.config.ApiEndpoint()
skipSSL = cmd.config.IsSSLDisabled() || skipSSL
}
if endpoint == "" {
endpoint = cmd.ui.Ask("API endpoint%s", terminal.PromptColor(">"))
} else {
cmd.ui.Say("API endpoint: %s", terminal.EntityNameColor(endpoint))
}
return endpoint, skipSSL
}
func (cmd Login) authenticate(c *cli.Context) {
usernameFlagValue := c.String("u")
passwordFlagValue := c.String("p")
prompts, err := cmd.authenticator.GetLoginPromptsAndSaveUAAServerURL()
if err != nil {
cmd.ui.Failed(err.Error())
}
passwordKeys := []string{}
credentials := make(map[string]string)
for key, prompt := range prompts {
if prompt.Type == configuration.AuthPromptTypePassword {
passwordKeys = append(passwordKeys, key)
} else if key == "username" && usernameFlagValue != "" {
credentials[key] = usernameFlagValue
} else {
credentials[key] = cmd.ui.Ask("%s%s", prompt.DisplayName, terminal.PromptColor(">"))
}
}
for i := 0; i < maxLoginTries; i++ {
for _, key := range passwordKeys {
if key == "password" && passwordFlagValue != "" {
credentials[key] = passwordFlagValue
passwordFlagValue = ""
} else {
credentials[key] = cmd.ui.AskForPassword("%s%s", prompts[key].DisplayName, terminal.PromptColor(">"))
}
}
cmd.ui.Say("Authenticating...")
err = cmd.authenticator.Authenticate(credentials)
if err == nil {
cmd.ui.Ok()
cmd.ui.Say("")
break
}
cmd.ui.Say(err.Error())
}
if err != nil {
cmd.ui.Failed("Unable to authenticate.")
}
}
func (cmd Login) setOrganization(c *cli.Context) (isOrgSet bool) {
orgName := c.String("o")
if orgName == "" {
availableOrgs := []models.Organization{}
apiErr := cmd.orgRepo.ListOrgs(func(o models.Organization) bool {
availableOrgs = append(availableOrgs, o)
return len(availableOrgs) < maxChoices
})
if apiErr != nil {
cmd.ui.Failed("Error finding avilable orgs\n%s", apiErr.Error())
}
if len(availableOrgs) == 1 {
cmd.targetOrganization(availableOrgs[0])
return true
}
orgName = cmd.promptForOrgName(availableOrgs)
if orgName == "" {
cmd.ui.Say("")
return false
}
}
org, err := cmd.orgRepo.FindByName(orgName)
if err != nil {
cmd.ui.Failed("Error finding org %s\n%s", terminal.EntityNameColor(orgName), err.Error())
}
cmd.targetOrganization(org)
return true
}
func (cmd Login) promptForOrgName(orgs []models.Organization) string {
orgNames := []string{}
for _, org := range orgs {
orgNames = append(orgNames, org.Name)
}
return cmd.promptForName(orgNames, "Select an org (or press enter to skip):", "Org")
}
func (cmd Login) targetOrganization(org models.Organization) {
cmd.config.SetOrganizationFields(org.OrganizationFields)
cmd.ui.Say("Targeted org %s\n", terminal.EntityNameColor(org.Name))
}
func (cmd Login) setSpace(c *cli.Context) {
spaceName := c.String("s")
if spaceName == "" {
var availableSpaces []models.Space
err := cmd.spaceRepo.ListSpaces(func(space models.Space) bool {
availableSpaces = append(availableSpaces, space)
return (len(availableSpaces) < maxChoices)
})
if err != nil {
cmd.ui.Failed("Error finding available spaces\n%s", err.Error())
}
// Target only space if possible
if len(availableSpaces) == 1 {
cmd.targetSpace(availableSpaces[0])
return
}
spaceName = cmd.promptForSpaceName(availableSpaces)
if spaceName == "" {
cmd.ui.Say("")
return
}
}
space, err := cmd.spaceRepo.FindByName(spaceName)
if err != nil {
cmd.ui.Failed("Error finding space %s\n%s", terminal.EntityNameColor(spaceName), err.Error())
}
cmd.targetSpace(space)
}
func (cmd Login) promptForSpaceName(spaces []models.Space) string {
spaceNames := []string{}
for _, space := range spaces {
spaceNames = append(spaceNames, space.Name)
}
return cmd.promptForName(spaceNames, "Select a space (or press enter to skip):", "Space")
}
func (cmd Login) targetSpace(space models.Space) {
cmd.config.SetSpaceFields(space.SpaceFields)
cmd.ui.Say("Targeted space %s\n", terminal.EntityNameColor(space.Name))
}
func (cmd Login) promptForName(names []string, listPrompt, itemPrompt string) string {
nameIndex := 0
var nameString string
for nameIndex < 1 || nameIndex > len(names) {
var err error
// list header
cmd.ui.Say(listPrompt)
// only display list if it is shorter than maxChoices
if len(names) < maxChoices {
for i, name := range names {
cmd.ui.Say("%d. %s", i+1, name)
}
} else {
cmd.ui.Say("There are too many options to display, please type in the name.")
}
nameString = cmd.ui.Ask("%s%s", itemPrompt, terminal.PromptColor(">"))
if nameString == "" {
return ""
}
nameIndex, err = strconv.Atoi(nameString)
if err != nil {
nameIndex = 1
return nameString
}
}
return names[nameIndex-1]
}