Cleanup imports and vendor dependencies.

Signed-off-by: David Calavera <david.calavera@gmail.com>

vendor/github.com/danieljoos/wincred/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Daniel Joos
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/danieljoos/wincred/conversion.go

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+package wincred
+
+import (
+	"C"
+	"encoding/binary"
+	"reflect"
+	"syscall"
+	"time"
+	"unicode/utf16"
+	"unsafe"
+)
+
+// Create a Go string using a pointer to a zero-terminated UTF 16 encoded string.
+// See github.com/AllenDang/w32
+func utf16PtrToString(wstr *uint16) string {
+	if wstr != nil {
+		buf := make([]uint16, 0, 256)
+		for ptr := uintptr(unsafe.Pointer(wstr)); ; ptr += 2 {
+			rune := *(*uint16)(unsafe.Pointer(ptr))
+			if rune == 0 {
+				return string(utf16.Decode(buf))
+			}
+			buf = append(buf, rune)
+		}
+	}
+
+	return ""
+}
+
+// Create a byte array from a given UTF 16 char array
+func utf16ToByte(wstr []uint16) (result []byte) {
+	result = make([]byte, len(wstr)*2)
+	for i, _ := range wstr {
+		binary.LittleEndian.PutUint16(result[(i*2):(i*2)+2], wstr[i])
+	}
+	return
+}
+
+// Convert the given CREDENTIAL struct to a more usable structure
+func nativeToCredential(cred *nativeCREDENTIAL) (result *Credential) {
+	result = new(Credential)
+	result.Comment = utf16PtrToString(cred.Comment)
+	result.TargetName = utf16PtrToString(cred.TargetName)
+	result.TargetAlias = utf16PtrToString(cred.TargetAlias)
+	result.UserName = utf16PtrToString(cred.UserName)
+	result.LastWritten = time.Unix(0, cred.LastWritten.Nanoseconds())
+	result.Persist = CredentialPersistence(cred.Persist)
+	result.CredentialBlob = C.GoBytes(unsafe.Pointer(cred.CredentialBlob), C.int(cred.CredentialBlobSize))
+	result.Attributes = make([]CredentialAttribute, cred.AttributeCount)
+	attrSliceHeader := reflect.SliceHeader{
+		Data: cred.Attributes,
+		Len:  int(cred.AttributeCount),
+		Cap:  int(cred.AttributeCount),
+	}
+	attrSlice := *(*[]nativeCREDENTIAL_ATTRIBUTE)(unsafe.Pointer(&attrSliceHeader))
+	for i, attr := range attrSlice {
+		resultAttr := &result.Attributes[i]
+		resultAttr.Keyword = utf16PtrToString(attr.Keyword)
+		resultAttr.Value = C.GoBytes(unsafe.Pointer(attr.Value), C.int(attr.ValueSize))
+	}
+
+	return result
+}
+
+// Convert the given Credential object back to a CREDENTIAL struct, which can be used for calling the
+// Windows APIs
+func nativeFromCredential(cred *Credential) (result *nativeCREDENTIAL) {
+	result = new(nativeCREDENTIAL)
+	result.Flags = 0
+	result.Type = 0
+	result.TargetName, _ = syscall.UTF16PtrFromString(cred.TargetName)
+	result.Comment, _ = syscall.UTF16PtrFromString(cred.Comment)
+	result.LastWritten = syscall.NsecToFiletime(cred.LastWritten.UnixNano())
+	result.CredentialBlobSize = uint32(len(cred.CredentialBlob))
+	if len(cred.CredentialBlob) > 0 {
+		result.CredentialBlob = uintptr(unsafe.Pointer(&cred.CredentialBlob[0]))
+	} else {
+		result.CredentialBlob = 0
+	}
+	result.Persist = uint32(cred.Persist)
+	result.AttributeCount = uint32(len(cred.Attributes))
+	attributes := make([]nativeCREDENTIAL_ATTRIBUTE, len(cred.Attributes))
+	if len(attributes) > 0 {
+		result.Attributes = uintptr(unsafe.Pointer(&attributes[0]))
+	} else {
+		result.Attributes = 0
+	}
+	for i, _ := range cred.Attributes {
+		inAttr := &cred.Attributes[i]
+		outAttr := &attributes[i]
+		outAttr.Keyword, _ = syscall.UTF16PtrFromString(inAttr.Keyword)
+		outAttr.Flags = 0
+		outAttr.ValueSize = uint32(len(inAttr.Value))
+		if len(inAttr.Value) > 0 {
+			outAttr.Value = uintptr(unsafe.Pointer(&inAttr.Value[0]))
+		} else {
+			outAttr.Value = 0
+		}
+	}
+	result.TargetAlias, _ = syscall.UTF16PtrFromString(cred.TargetAlias)
+	result.UserName, _ = syscall.UTF16PtrFromString(cred.UserName)
+
+	return
+}

vendor/github.com/danieljoos/wincred/native.go

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+package wincred
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+var (
+	modadvapi32 = syscall.NewLazyDLL("advapi32.dll")
+
+	procCredRead   = modadvapi32.NewProc("CredReadW")
+	procCredWrite  = modadvapi32.NewProc("CredWriteW")
+	procCredDelete = modadvapi32.NewProc("CredDeleteW")
+	procCredFree   = modadvapi32.NewProc("CredFree")
+)
+
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa374788(v=vs.85).aspx
+type nativeCREDENTIAL struct {
+	Flags              uint32
+	Type               uint32
+	TargetName         *uint16
+	Comment            *uint16
+	LastWritten        syscall.Filetime
+	CredentialBlobSize uint32
+	CredentialBlob     uintptr
+	Persist            uint32
+	AttributeCount     uint32
+	Attributes         uintptr
+	TargetAlias        *uint16
+	UserName           *uint16
+}
+
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa374790(v=vs.85).aspx
+type nativeCREDENTIAL_ATTRIBUTE struct {
+	Keyword   *uint16
+	Flags     uint32
+	ValueSize uint32
+	Value     uintptr
+}
+
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa374788(v=vs.85).aspx
+type nativeCRED_TYPE uint32
+
+const (
+	naCRED_TYPE_GENERIC                 nativeCRED_TYPE = 0x1
+	naCRED_TYPE_DOMAIN_PASSWORD         nativeCRED_TYPE = 0x2
+	naCRED_TYPE_DOMAIN_CERTIFICATE      nativeCRED_TYPE = 0x3
+	naCRED_TYPE_DOMAIN_VISIBLE_PASSWORD nativeCRED_TYPE = 0x4
+	naCRED_TYPE_GENERIC_CERTIFICATE     nativeCRED_TYPE = 0x5
+	naCRED_TYPE_DOMAIN_EXTENDED         nativeCRED_TYPE = 0x6
+)
+
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa374804(v=vs.85).aspx
+func nativeCredRead(targetName string, typ nativeCRED_TYPE) (*Credential, error) {
+	var pcred uintptr
+	targetNamePtr, _ := syscall.UTF16PtrFromString(targetName)
+	ret, _, err := procCredRead.Call(
+		uintptr(unsafe.Pointer(targetNamePtr)),
+		uintptr(typ),
+		0,
+		uintptr(unsafe.Pointer(&pcred)),
+	)
+	if ret == 0 {
+		return nil, err
+	}
+	defer procCredFree.Call(pcred)
+
+	return nativeToCredential((*nativeCREDENTIAL)(unsafe.Pointer(pcred))), nil
+}
+
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa375187(v=vs.85).aspx
+func nativeCredWrite(cred *Credential, typ nativeCRED_TYPE) error {
+	ncred := nativeFromCredential(cred)
+	ncred.Type = uint32(typ)
+	ret, _, err := procCredWrite.Call(
+		uintptr(unsafe.Pointer(ncred)),
+		0,
+	)
+	if ret == 0 {
+		return err
+	}
+
+	return nil
+}
+
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa374787(v=vs.85).aspx
+func nativeCredDelete(cred *Credential, typ nativeCRED_TYPE) error {
+	targetNamePtr, _ := syscall.UTF16PtrFromString(cred.TargetName)
+	ret, _, err := procCredDelete.Call(
+		uintptr(unsafe.Pointer(targetNamePtr)),
+		uintptr(typ),
+		0,
+	)
+	if ret == 0 {
+		return err
+	}
+
+	return nil
+}

vendor/github.com/danieljoos/wincred/types.go

@@ -0,0 +1,37 @@
+package wincred
+
+import (
+	"time"
+)
+
+type CredentialPersistence uint32
+
+const (
+	PersistSession      CredentialPersistence = 0x1
+	PersistLocalMachine CredentialPersistence = 0x2
+	PersistEnterprise   CredentialPersistence = 0x3
+)
+
+type CredentialAttribute struct {
+	Keyword string
+	Value   []byte
+}
+
+type Credential struct {
+	TargetName     string
+	Comment        string
+	LastWritten    time.Time
+	CredentialBlob []byte
+	Attributes     []CredentialAttribute
+	TargetAlias    string
+	UserName       string
+	Persist        CredentialPersistence
+}
+
+type GenericCredential struct {
+	Credential
+}
+
+type DomainPassword struct {
+	Credential
+}

vendor/github.com/danieljoos/wincred/wincred.go

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+package wincred
+
+import (
+	"syscall"
+)
+
+// Get the generic credential with the given name from Windows credential manager
+func GetGenericCredential(targetName string) (*GenericCredential, error) {
+	cred, err := nativeCredRead(targetName, naCRED_TYPE_GENERIC)
+	if cred != nil {
+		return &GenericCredential{*cred}, err
+	}
+	return nil, err
+}
+
+// Create a new generic credential with the given name
+func NewGenericCredential(targetName string) (result *GenericCredential) {
+	result = new(GenericCredential)
+	result.TargetName = targetName
+	result.Persist = PersistLocalMachine
+	return
+}
+
+// Persist the credential to Windows credential manager
+func (t *GenericCredential) Write() (err error) {
+	err = nativeCredWrite(&t.Credential, naCRED_TYPE_GENERIC)
+	return
+}
+
+// Delete the credential from Windows credential manager
+func (t *GenericCredential) Delete() (err error) {
+	err = nativeCredDelete(&t.Credential, naCRED_TYPE_GENERIC)
+	return
+}
+
+// Get the domain password credential with the given target host name
+func GetDomainPassword(targetName string) (*DomainPassword, error) {
+	cred, err := nativeCredRead(targetName, naCRED_TYPE_DOMAIN_PASSWORD)
+	if cred != nil {
+		return &DomainPassword{*cred}, err
+	}
+	return nil, err
+}
+
+// Create a new domain password credential used for login to the given target host name
+func NewDomainPassword(targetName string) (result *DomainPassword) {
+	result = new(DomainPassword)
+	result.TargetName = targetName
+	result.Persist = PersistLocalMachine
+	return
+}
+
+// Persist the domain password credential to Windows credential manager
+func (t *DomainPassword) Write() (err error) {
+	err = nativeCredWrite(&t.Credential, naCRED_TYPE_DOMAIN_PASSWORD)
+	return
+}
+
+// Delete the domain password credential from Windows credential manager
+func (t *DomainPassword) Delete() (err error) {
+	err = nativeCredDelete(&t.Credential, naCRED_TYPE_DOMAIN_PASSWORD)
+	return
+}
+
+// Set the CredentialBlob field of a domain password credential
+// using an UTF16 encoded password string
+func (t *DomainPassword) SetPassword(pw string) {
+	t.CredentialBlob = utf16ToByte(syscall.StringToUTF16(pw))
+}