/usr/share/gocode/src/github.com/mqu/openldap/openldap.go is in golang-openldap-dev 0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Openldap (2.4.30) binding in GO
*
*
* link to ldap or ldap_r (for thread-safe binding)
*
*/
package openldap
/*
#define LDAP_DEPRECATED 1
#include <stdlib.h>
#include <ldap.h>
static inline char* to_charptr(const void* s) { return (char*)s; }
*/
// #cgo CFLAGS: -DLDAP_DEPRECATED=1
// #cgo linux CFLAGS: -DLINUX=1
// #cgo LDFLAGS: -lldap -llber
import "C"
import (
"errors"
"fmt"
"unsafe"
"strings"
"strconv"
)
/* Intialize() open an LDAP connexion ; supported url formats :
*
* ldap://host:389/
* ldaps://secure-host:636/
*
* return values :
* - on success : LDAP object, nil
* - on error : nil and error with error description.
*/
func Initialize(url string) (*Ldap, error) {
_url := C.CString(url)
defer C.free(unsafe.Pointer(_url))
var ldap *C.LDAP
// API: int ldap_initialize (LDAP **ldp, LDAP_CONST char *url )
rv := C.ldap_initialize(&ldap, _url)
if rv != 0 {
err := errors.New(fmt.Sprintf("LDAP::Initialize() error (%d) : %s", rv, ErrorToString(int(rv))))
return nil, err
}
return &Ldap{ldap}, nil
}
/*
* Bind() is used for LDAP authentifications
*
* if who is empty this is an anonymous bind
* else this is an authentificated bind
*
* return value :
* - nil on succes,
* - error with error description on error.
*
*/
func (self *Ldap) Bind(who, cred string) error {
var rv int
authmethod := C.int(LDAP_AUTH_SIMPLE)
// DEPRECATED
// API: int ldap_bind_s (LDAP *ld, LDAP_CONST char *who, LDAP_CONST char *cred, int authmethod );
if who == "" {
_who := C.to_charptr(unsafe.Pointer(nil))
_cred := C.to_charptr(unsafe.Pointer(nil))
rv = int(C.ldap_bind_s(self.conn, _who, _cred, authmethod))
} else {
_who := C.CString(who)
_cred := C.CString(cred)
defer C.free(unsafe.Pointer(_who))
rv = int(C.ldap_bind_s(self.conn, _who, _cred, authmethod))
}
if rv == LDAP_OPT_SUCCESS {
return nil
}
self.conn = nil
return errors.New(fmt.Sprintf("LDAP::Bind() error (%d) : %s", rv, ErrorToString(rv)))
}
/*
* close LDAP connexion
*
* return value :
* - nil on succes,
* - error with error description on error.
*
*/
func (self *Ldap) Close() error {
// DEPRECATED
// API: int ldap_unbind(LDAP *ld)
rv := C.ldap_unbind(self.conn)
if rv == LDAP_OPT_SUCCESS {
return nil
}
self.conn = nil
return errors.New(fmt.Sprintf("LDAP::Close() error (%d) : %s", int(rv), ErrorToString(int(rv))))
}
/*
* Unbind() close LDAP connexion
*
* an alias to Ldap::Close()
*
*/
func (self *Ldap) Unbind() error {
return self.Close()
}
/* Search() is used to search LDAP server
- base is where search is starting
- scope allows local or deep search. Supported values :
- LDAP_SCOPE_BASE
- LDAP_SCOPE_ONELEVEL
- LDAP_SCOPE_SUBTREE
- filter is an LDAP search expression,
- attributes is an array of string telling with LDAP attribute to get from this request
*/
func (self *Ldap) Search(base string, scope int, filter string, attributes []string) (*LdapMessage, error) {
var attrsonly int = 0 // false: returns all, true, returns only attributes without values
_base := C.CString(base)
defer C.free(unsafe.Pointer(_base))
_filter := C.CString(filter)
defer C.free(unsafe.Pointer(_filter))
// transform []string to C.char** null terminated array (attributes argument)
_attributes := make([]*C.char, len(attributes)+1) // default set to nil (NULL in C)
for i, arg := range attributes {
_attributes[i] = C.CString(arg)
defer C.free(unsafe.Pointer(_attributes[i]))
}
var msg *C.LDAPMessage
// DEPRECATED
// API: int ldap_search_s (LDAP *ld, char *base, int scope, char *filter, char **attrs, int attrsonly, LdapMessage * ldap_res)
rv := int(C.ldap_search_s(self.conn, _base, C.int(scope), _filter, &_attributes[0], C.int(attrsonly), &msg))
if rv == LDAP_OPT_SUCCESS {
_msg := new(LdapMessage)
_msg.ldap = self
_msg.errno = rv
_msg.msg = msg
return _msg, nil
}
return nil, errors.New(fmt.Sprintf("LDAP::Search() error : %d (%s)", rv, ErrorToString(rv)))
}
// ------------------------------------- Ldap* method (object oriented) -------------------------------------------------------------------
// Create a new LdapAttribute entry with name and values.
func LdapAttributeNew(name string, values []string)(*LdapAttribute){
a := new(LdapAttribute)
a.values = values
a.name = name
return a
}
// Append() adds an LdapAttribute to self LdapEntry
func (self *LdapEntry) Append(a LdapAttribute){
self.values = append(self.values, a)
}
// String() is used for fmt.Println(self)
//
func (self *LdapAttribute) String() string{
return self.ToText()
}
// ToText() returns a text string representation of LdapAttribute
// avoiding displaying binary data.
//
func (self *LdapAttribute) ToText() string{
var list []string
for _, a := range self.Values() {
if (!_isPrint(a)) {
list = append(list, fmt.Sprintf("binary-data[%d]", len(a)))
} else {
list = append(list, a)
}
}
if len(list) > 1 {
return fmt.Sprintf("%s: (%d)[%s]", self.name, len(list), strings.Join(list, ", "))
}
return fmt.Sprintf("%s: [%s]", self.name, strings.Join(list, ", "))
}
// Name() return attribute name
func (self *LdapAttribute) Name() string{
return self.name
}
// Values() returns array values for self LdapAttribute
//
func (self *LdapAttribute) Values() []string{
return self.values
}
// _isPrint() returns true if str is printable
//
// @private method
func _isPrint(str string) bool{
for _, c := range str{
if !strconv.IsPrint(rune(c)) {
return false
}
}
return true
}
// IsPrint() returns true is self LdapAttribute is printable.
func (self *LdapAttribute) IsPrint() bool{
for _, a := range self.Values() {
if (!_isPrint(a)) {
return false
}
}
return true
}
// Dn() returns DN (Distinguish Name) for self LdapEntry
func (self *LdapEntry) Dn() string{
return self.dn
}
// Attributes() returns an array of LdapAttribute
func (self *LdapEntry) Attributes() []LdapAttribute{
return self.values
}
// Print() allow printing self LdapEntry with fmt.Println()
func (self *LdapEntry) String() string {
return self.ToText()
}
// GetValuesByName() get a list of values for self LdapEntry, using "name" attribute
func (self *LdapEntry) GetValuesByName(attrib string) []string{
for _, a := range self.values{
if a.Name() == attrib {
return a.values
}
}
return []string{}
}
// GetOneValueByName() ; a quick way to get a single attribute value
func (self *LdapEntry) GetOneValueByName(attrib string) (string, error){
for _, a := range self.values{
if a.Name() == attrib {
return a.values[0], nil
}
}
return "", errors.New(fmt.Sprintf("LdapEntry::GetOneValueByName() error : attribute %s not found", attrib))
}
// ToText() return a string representating self LdapEntry
func (self *LdapEntry) ToText() string{
txt := fmt.Sprintf("dn: %s\n", self.dn)
for _, a := range self.values{
txt = txt + fmt.Sprintf("%s\n", a.ToText())
}
return txt
}
// Append() add e to LdapSearchResult array
func (self *LdapSearchResult) Append(e LdapEntry){
self.entries = append(self.entries, e)
}
// ToText() : a quick way to print an LdapSearchResult
func (self *LdapSearchResult) ToText() string{
txt := fmt.Sprintf("# query : %s\n", self.filter)
txt = txt + fmt.Sprintf("# num results : %d\n", self.Count())
txt = txt + fmt.Sprintf("# search : %s\n", self.Filter())
txt = txt + fmt.Sprintf("# base : %s\n", self.Base())
txt = txt + fmt.Sprintf("# attributes : [%s]\n", strings.Join(self.Attributes(), ", "))
for _, e := range self.entries{
txt = txt + fmt.Sprintf("%s\n", e.ToText())
}
return txt
}
// String() : used for fmt.Println(self)
func (self *LdapSearchResult) String() string{
return self.ToText()
}
// Entries() : returns an array of LdapEntry for self
func (self *LdapSearchResult) Entries() []LdapEntry{
return self.entries
}
// Count() : returns number of results for self search.
func (self *LdapSearchResult) Count() int{
return len(self.entries)
}
// Filter() : returns filter for self search
func (self *LdapSearchResult) Filter() string{
return self.filter
}
// Filter() : returns base DN for self search
func (self *LdapSearchResult) Base() string{
return self.base
}
// Filter() : returns scope for self search
func (self *LdapSearchResult) Scope() int{
return self.scope
}
// Filter() : returns an array of attributes used for this actual search
func (self *LdapSearchResult) Attributes() []string{
return self.attributes
}
// SearchAll() : a quick way to make search. This method returns an LdapSearchResult with all necessary methods to
// access data. Result is a collection (tree) of []LdapEntry / []LdapAttribute.
//
func (self *Ldap) SearchAll(base string, scope int, filter string, attributes []string) (*LdapSearchResult, error) {
sr := new(LdapSearchResult)
sr.ldap = self
sr.base = base
sr.scope = scope
sr.filter = filter
sr.attributes = attributes
// Search(base string, scope int, filter string, attributes []string) (*LDAPMessage, error)
result, err := self.Search(base, scope, filter, attributes)
if err != nil {
fmt.Println(err)
return sr, err
}
// Free LDAP::Result() allocated data
defer result.MsgFree()
e := result.FirstEntry()
for e != nil {
_e := new(LdapEntry)
_e.dn = e.GetDn()
attr, _ := e.FirstAttribute()
for attr != "" {
_attr := LdapAttributeNew(attr, e.GetValues(attr))
_e.Append(*_attr)
attr, _ = e.NextAttribute()
}
sr.Append(*_e)
e = e.NextEntry()
}
return sr, nil
}
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