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 (_d "bytes";_a "crypto";_ed "crypto/x509";_ab "encoding/asn1";_be "encoding/pem";_b "errors";_ac "fmt";_ef "github.com/unidoc/timestamp";_c "github.com/unidoc/unipdf/v3/common";_ga "golang.org/x/crypto/ocsp";_e "io";_bf "net/http";
_g "time";);

// GetEncodedToken executes the timestamp request and returns the DER encoded
// timestamp token bytes.
func (_acf *TimestampClient )GetEncodedToken (serverURL string ,req *_ef .Request )([]byte ,error ){if serverURL ==""{return nil ,_ac .Errorf ("\u006d\u0075\u0073\u0074\u0020\u0070r\u006f\u0076\u0069\u0064\u0065\u0020\u0074\u0069\u006d\u0065\u0073\u0074\u0061m\u0070\u0020\u0073\u0065\u0072\u0076\u0065r\u0020\u0055\u0052\u004c");
};if req ==nil {return nil ,_ac .Errorf ("\u0074\u0069\u006de\u0073\u0074\u0061\u006dp\u0020\u0072\u0065\u0071\u0075\u0065\u0073t\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006e\u0069\u006c");};_egc ,_fbg :=req .Marshal ();if _fbg !=nil {return nil ,_fbg ;
};_cab ,_fbg :=_bf .NewRequest ("\u0050\u004f\u0053\u0054",serverURL ,_d .NewBuffer (_egc ));if _fbg !=nil {return nil ,_fbg ;};_cab .Header .Set ("\u0043\u006f\u006et\u0065\u006e\u0074\u002d\u0054\u0079\u0070\u0065","a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079");
if _acf .BeforeHTTPRequest !=nil {if _cc :=_acf .BeforeHTTPRequest (_cab );_cc !=nil {return nil ,_cc ;};};_cf :=_acf .HTTPClient ;if _cf ==nil {_cf =_cabc ();};_gff ,_fbg :=_cf .Do (_cab );if _fbg !=nil {return nil ,_fbg ;};defer _gff .Body .Close ();
_egd ,_fbg :=_e .ReadAll (_gff .Body );if _fbg !=nil {return nil ,_fbg ;};if _gff .StatusCode !=_bf .StatusOK {return nil ,_ac .Errorf ("\u0075\u006e\u0065x\u0070\u0065\u0063\u0074e\u0064\u0020\u0048\u0054\u0054\u0050\u0020s\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064\u0065\u003a\u0020\u0025\u0064",_gff .StatusCode );
};var _cee struct{Version _ab .RawValue ;Content _ab .RawValue ;};if _ ,_fbg =_ab .Unmarshal (_egd ,&_cee );_fbg !=nil {return nil ,_fbg ;};return _cee .Content .FullBytes ,nil ;};

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

// 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 *_bf .Client ;};

// NewOCSPClient returns a new OCSP client.
func NewOCSPClient ()*OCSPClient {return &OCSPClient {HTTPClient :_cabc (),Hash :_a .SHA1 }};

// 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 *_bf .Client ;};

// 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 *_bf .Client ;

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

// NewTimestampRequest returns a new timestamp request based
// on the specified options.
func NewTimestampRequest (body _e .Reader ,opts *_ef .RequestOptions )(*_ef .Request ,error ){if opts ==nil {opts =&_ef .RequestOptions {};};if opts .Hash ==0{opts .Hash =_a .SHA256 ;};if !opts .Hash .Available (){return nil ,_ed .ErrUnsupportedAlgorithm ;
};_cea :=opts .Hash .New ();if _ ,_gfc :=_e .Copy (_cea ,body );_gfc !=nil {return nil ,_gfc ;};return &_ef .Request {HashAlgorithm :opts .Hash ,HashedMessage :_cea .Sum (nil ),Certificates :opts .Certificates ,TSAPolicyOID :opts .TSAPolicyOID ,Nonce :opts .Nonce },nil ;
};

// Get retrieves the certificate at the specified URL.
func (_bb *CertClient )Get (url string )(*_ed .Certificate ,error ){if _bb .HTTPClient ==nil {_bb .HTTPClient =_cabc ();};_bbd ,_ec :=_bb .HTTPClient .Get (url );if _ec !=nil {return nil ,_ec ;};defer _bbd .Body .Close ();_fb ,_ec :=_e .ReadAll (_bbd .Body );
if _ec !=nil {return nil ,_ec ;};if _ea ,_ :=_be .Decode (_fb );_ea !=nil {_fb =_ea .Bytes ;};_gad ,_ec :=_ed .ParseCertificate (_fb );if _ec !=nil {return nil ,_ec ;};return _gad ,nil ;};

// NewTimestampClient returns a new timestamp client.
func NewTimestampClient ()*TimestampClient {return &TimestampClient {HTTPClient :_cabc ()}};

// IsCA returns true if the provided certificate appears to be a CA certificate.
func (_gc *CertClient )IsCA (cert *_ed .Certificate )bool {return cert .IsCA &&_d .Equal (cert .RawIssuer ,cert .RawSubject );};func _cabc ()*_bf .Client {return &_bf .Client {Timeout :5*_g .Second }};

// 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 (_ged *CRLClient )MakeRequest (serverURL string ,cert *_ed .Certificate )([]byte ,error ){if _ged .HTTPClient ==nil {_ged .HTTPClient =_cabc ();};if serverURL ==""{if len (cert .CRLDistributionPoints )==0{return nil ,_b .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];};_ba ,_efc :=_ged .HTTPClient .Get (serverURL );if _efc !=nil {return nil ,_efc ;};defer _ba .Body .Close ();_gaf ,_efc :=_e .ReadAll (_ba .Body );if _efc !=nil {return nil ,_efc ;};if _fa ,_ :=_be .Decode (_gaf );
_fa !=nil {_gaf =_fa .Bytes ;};return _gaf ,nil ;};

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

// GetIssuer retrieves the issuer of the provided certificate.
func (_bed *CertClient )GetIssuer (cert *_ed .Certificate )(*_ed .Certificate ,error ){for _ ,_gab :=range cert .IssuingCertificateURL {_gf ,_ge :=_bed .Get (_gab );if _ge !=nil {_c .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 ,_ge );
continue ;};return _gf ,nil ;};return nil ,_ac .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 (_gca *OCSPClient )MakeRequest (serverURL string ,cert ,issuer *_ed .Certificate )(*_ga .Response ,[]byte ,error ){if _gca .HTTPClient ==nil {_gca .HTTPClient =_cabc ();};if serverURL ==""{if len (cert .OCSPServer )==0{return nil ,nil ,_b .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];};_edb ,_ff :=_ga .CreateRequest (cert ,issuer ,&_ga .RequestOptions {Hash :_gca .Hash });if _ff !=nil {return nil ,nil ,_ff ;};_fbf ,_ff :=_gca .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",_d .NewReader (_edb ));
if _ff !=nil {return nil ,nil ,_ff ;};defer _fbf .Body .Close ();_gee ,_ff :=_e .ReadAll (_fbf .Body );if _ff !=nil {return nil ,nil ,_ff ;};if _ceb ,_ :=_be .Decode (_gee );_ceb !=nil {_gee =_ceb .Bytes ;};_edg ,_ff :=_ga .ParseResponseForCert (_gee ,cert ,issuer );
if _ff !=nil {return nil ,nil ,_ff ;};return _edg ,_gee ,nil ;};

// TimestampClient represents a RFC 3161 timestamp client.
// It is used to obtain signed tokens from timestamp authority servers.
type TimestampClient struct{

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

// Callbacks.
BeforeHTTPRequest func (_ca *_bf .Request )error ;};