1 files changed, 151 insertions, 0 deletions
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go b/vendor/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go
new file mode 100644
index 0000000..7fb7cbf
--- /dev/null
+++ b/vendor/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go
@@ -0,0 +1,151 @@
+package credentials
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/go-ini/ini"
+
+	"github.com/aws/aws-sdk-go/aws/awserr"
+)
+
+// SharedCredsProviderName provides a name of SharedCreds provider
+const SharedCredsProviderName = "SharedCredentialsProvider"
+
+var (
+	// ErrSharedCredentialsHomeNotFound is emitted when the user directory cannot be found.
+	//
+	// @readonly
+	ErrSharedCredentialsHomeNotFound = awserr.New("UserHomeNotFound", "user home directory not found.", nil)
+)
+
+// A SharedCredentialsProvider retrieves credentials from the current user's home
+// directory, and keeps track if those credentials are expired.
+//
+// Profile ini file example: $HOME/.aws/credentials
+type SharedCredentialsProvider struct {
+	// Path to the shared credentials file.
+	//
+	// If empty will look for "AWS_SHARED_CREDENTIALS_FILE" env variable. If the
+	// env value is empty will default to current user's home directory.
+	// Linux/OSX: "$HOME/.aws/credentials"
+	// Windows:   "%USERPROFILE%\.aws\credentials"
+	Filename string
+
+	// AWS Profile to extract credentials from the shared credentials file. If empty
+	// will default to environment variable "AWS_PROFILE" or "default" if
+	// environment variable is also not set.
+	Profile string
+
+	// retrieved states if the credentials have been successfully retrieved.
+	retrieved bool
+}
+
+// NewSharedCredentials returns a pointer to a new Credentials object
+// wrapping the Profile file provider.
+func NewSharedCredentials(filename, profile string) *Credentials {
+	return NewCredentials(&SharedCredentialsProvider{
+		Filename: filename,
+		Profile:  profile,
+	})
+}
+
+// Retrieve reads and extracts the shared credentials from the current
+// users home directory.
+func (p *SharedCredentialsProvider) Retrieve() (Value, error) {
+	p.retrieved = false
+
+	filename, err := p.filename()
+	if err != nil {
+		return Value{ProviderName: SharedCredsProviderName}, err
+	}
+
+	creds, err := loadProfile(filename, p.profile())
+	if err != nil {
+		return Value{ProviderName: SharedCredsProviderName}, err
+	}
+
+	p.retrieved = true
+	return creds, nil
+}
+
+// IsExpired returns if the shared credentials have expired.
+func (p *SharedCredentialsProvider) IsExpired() bool {
+	return !p.retrieved
+}
+
+// loadProfiles loads from the file pointed to by shared credentials filename for profile.
+// The credentials retrieved from the profile will be returned or error. Error will be
+// returned if it fails to read from the file, or the data is invalid.
+func loadProfile(filename, profile string) (Value, error) {
+	config, err := ini.Load(filename)
+	if err != nil {
+		return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to load shared credentials file", err)
+	}
+	iniProfile, err := config.GetSection(profile)
+	if err != nil {
+		return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to get profile", err)
+	}
+
+	id, err := iniProfile.GetKey("aws_access_key_id")
+	if err != nil {
+		return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsAccessKey",
+			fmt.Sprintf("shared credentials %s in %s did not contain aws_access_key_id", profile, filename),
+			err)
+	}
+
+	secret, err := iniProfile.GetKey("aws_secret_access_key")
+	if err != nil {
+		return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsSecret",
+			fmt.Sprintf("shared credentials %s in %s did not contain aws_secret_access_key", profile, filename),
+			nil)
+	}
+
+	// Default to empty string if not found
+	token := iniProfile.Key("aws_session_token")
+
+	return Value{
+		AccessKeyID:     id.String(),
+		SecretAccessKey: secret.String(),
+		SessionToken:    token.String(),
+		ProviderName:    SharedCredsProviderName,
+	}, nil
+}
+
+// filename returns the filename to use to read AWS shared credentials.
+//
+// Will return an error if the user's home directory path cannot be found.
+func (p *SharedCredentialsProvider) filename() (string, error) {
+	if p.Filename == "" {
+		if p.Filename = os.Getenv("AWS_SHARED_CREDENTIALS_FILE"); p.Filename != "" {
+			return p.Filename, nil
+		}
+
+		homeDir := os.Getenv("HOME") // *nix
+		if homeDir == "" {           // Windows
+			homeDir = os.Getenv("USERPROFILE")
+		}
+		if homeDir == "" {
+			return "", ErrSharedCredentialsHomeNotFound
+		}
+
+		p.Filename = filepath.Join(homeDir, ".aws", "credentials")
+	}
+
+	return p.Filename, nil
+}
+
+// profile returns the AWS shared credentials profile.  If empty will read
+// environment variable "AWS_PROFILE". If that is not set profile will
+// return "default".
+func (p *SharedCredentialsProvider) profile() string {
+	if p.Profile == "" {
+		p.Profile = os.Getenv("AWS_PROFILE")
+	}
+	if p.Profile == "" {
+		p.Profile = "default"
+	}
+
+	return p.Profile
+}