unipdf/model/sigutil/sigutil.go

//
// Copyright 2020 FoxyUtils ehf. All rights reserved.
//
// This is a commercial product and requires a license to operate.
// A trial license can be obtained at https://unidoc.io
//
// DO NOT EDIT: generated by unitwist Go source code obfuscator.
//
// Use of this source code is governed by the UniDoc End User License Agreement
// terms that can be accessed at https://unidoc.io/eula/

package sigutil ;import (_e "bytes";_d "crypto";_fg "crypto/x509";_bb "encoding/pem";_f "errors";_gf "fmt";_ba "github.com/unidoc/unipdf/v3/common";_cb "golang.org/x/crypto/ocsp";_c "io/ioutil";_fa "net/http";_g "time";);

// NewCertClient returns a new certificate client.
func NewCertClient ()*CertClient {return &CertClient {HTTPClient :_ddd ()}};

// IsCA returns true if the provided certificate appears to be a CA certificate.
func (_eff *CertClient )IsCA (cert *_fg .Certificate )bool {return cert .IsCA &&_e .Equal (cert .RawIssuer ,cert .RawSubject );};

// OCSPClient represents a OCSP (Online Certificate Status Protocol) client.
// It is used to request revocation data from OCSP servers.
type OCSPClient struct{

// HTTPClient is the HTTP client used to make OCSP requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_fa .Client ;

// Hash is the hash function  used when constructing the OCSP
// requests. If zero, SHA-1 will be used.
Hash _d .Hash ;};

// MakeRequest makes a CRL request to the specified server and returns the
// response. If a server URL is not provided, it is extracted from the certificate.
func (_fda *CRLClient )MakeRequest (serverURL string ,cert *_fg .Certificate )([]byte ,error ){if _fda .HTTPClient ==nil {_fda .HTTPClient =_ddd ();};if serverURL ==""{if len (cert .CRLDistributionPoints )==0{return nil ,_f .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063\u0061t\u0065\u0020\u0064o\u0065\u0073\u0020\u006e\u006f\u0074\u0020\u0073\u0070ec\u0069\u0066\u0079 \u0061\u006ey\u0020\u0043\u0052\u004c\u0020\u0073e\u0072\u0076e\u0072\u0073");};serverURL =cert .CRLDistributionPoints [0];};_aca ,_ddc :=_fda .HTTPClient .Get (serverURL );if _ddc !=nil {return nil ,_ddc ;};defer _aca .Body .Close ();_efe ,_ddc :=_c .ReadAll (_aca .Body );if _ddc !=nil {return nil ,_ddc ;};if _efc ,_ :=_bb .Decode (_efe );_efc !=nil {_efe =_efc .Bytes ;};return _efe ,nil ;};

// NewOCSPClient returns a new OCSP client.
func NewOCSPClient ()*OCSPClient {return &OCSPClient {HTTPClient :_ddd (),Hash :_d .SHA1 }};func _ddd ()*_fa .Client {return &_fa .Client {Timeout :5*_g .Second }};

// Get retrieves the certificate at the specified URL.
func (_gb *CertClient )Get (url string )(*_fg .Certificate ,error ){if _gb .HTTPClient ==nil {_gb .HTTPClient =_ddd ();};_db ,_a :=_gb .HTTPClient .Get (url );if _a !=nil {return nil ,_a ;};defer _db .Body .Close ();_ac ,_a :=_c .ReadAll (_db .Body );if _a !=nil {return nil ,_a ;};if _fd ,_ :=_bb .Decode (_ac );_fd !=nil {_ac =_fd .Bytes ;};_dda ,_a :=_fg .ParseCertificate (_ac );if _a !=nil {return nil ,_a ;};return _dda ,nil ;};

// CertClient represents a X.509 certificate client. Its primary purpose
// is to download certificates.
type CertClient struct{

// HTTPClient is the HTTP client used to make certificate requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_fa .Client ;};

// NewCRLClient returns a new CRL client.
func NewCRLClient ()*CRLClient {return &CRLClient {HTTPClient :_ddd ()}};

// GetIssuer retrieves the issuer of the provided certificate.
func (_fb *CertClient )GetIssuer (cert *_fg .Certificate )(*_fg .Certificate ,error ){for _ ,_ge :=range cert .IssuingCertificateURL {_fc ,_ab :=_fb .Get (_ge );if _ab !=nil {_ba .Log .Debug ("\u0057\u0041\u0052\u004e\u003a\u0020\u0063\u006f\u0075\u006c\u0064\u0020\u006e\u006f\u0074 \u0064\u006f\u0077\u006e\u006c\u006f\u0061\u0064\u0020\u0069\u0073\u0073\u0075e\u0072\u0020\u0066\u006f\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066ic\u0061\u0074\u0065\u0020\u0025\u0076\u003a\u0020\u0025\u0076",cert .Subject .CommonName ,_ab );continue ;};return _fc ,nil ;};return nil ,_gf .Errorf ("\u0069\u0073\u0073\u0075e\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063a\u0074e\u0020\u006e\u006f\u0074\u0020\u0066\u006fu\u006e\u0064");};

// MakeRequest makes a OCSP request to the specified server and returns
// the parsed and raw responses. If a server URL is not provided, it is
// extracted from the certificate.
func (_gee *OCSPClient )MakeRequest (serverURL string ,cert ,issuer *_fg .Certificate )(*_cb .Response ,[]byte ,error ){if _gee .HTTPClient ==nil {_gee .HTTPClient =_ddd ();};if serverURL ==""{if len (cert .OCSPServer )==0{return nil ,nil ,_f .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063a\u0074\u0065\u0020\u0064\u006f\u0065\u0073 \u006e\u006f\u0074\u0020\u0073\u0070e\u0063\u0069\u0066\u0079\u0020\u0061\u006e\u0079\u0020\u004f\u0043S\u0050\u0020\u0073\u0065\u0072\u0076\u0065\u0072\u0073");};serverURL =cert .OCSPServer [0];};_ff ,_dbf :=_cb .CreateRequest (cert ,issuer ,&_cb .RequestOptions {Hash :_gee .Hash });if _dbf !=nil {return nil ,nil ,_dbf ;};_fbc ,_dbf :=_gee .HTTPClient .Post (serverURL ,"\u0061p\u0070\u006c\u0069\u0063\u0061\u0074\u0069\u006f\u006e\u002f\u006fc\u0073\u0070\u002d\u0072\u0065\u0071\u0075\u0065\u0073\u0074",_e .NewReader (_ff ));if _dbf !=nil {return nil ,nil ,_dbf ;};defer _fbc .Body .Close ();_gg ,_dbf :=_c .ReadAll (_fbc .Body );if _dbf !=nil {return nil ,nil ,_dbf ;};if _fbf ,_ :=_bb .Decode (_gg );_fbf !=nil {_gg =_fbf .Bytes ;};_cg ,_dbf :=_cb .ParseResponseForCert (_gg ,cert ,issuer );if _dbf !=nil {return nil ,nil ,_dbf ;};return _cg ,_gg ,nil ;};

// CRLClient represents a CRL (Certificate revocation list) client.
// It is used to request revocation data from CRL servers.
type CRLClient struct{

// HTTPClient is the HTTP client used to make CRL requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_fa .Client ;};