opaque_test.go

Documentation: github.com/ProtonMail/go-crypto/openpgp/packet

     1  // Copyright 2011 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package packet
     6  
     7  import (
     8  	"bytes"
     9  	"encoding/hex"
    10  	"io"
    11  	"testing"
    12  )
    13  
    14  // Test packet.Read error handling in OpaquePacket.Parse,
    15  // which attempts to re-read an OpaquePacket as a supported
    16  // Packet type.
    17  func TestOpaqueParseReason(t *testing.T) {
    18  	buf, err := hex.DecodeString(UnsupportedKeyHex)
    19  	if err != nil {
    20  		t.Fatal(err)
    21  	}
    22  	or := NewOpaqueReader(bytes.NewBuffer(buf))
    23  	count := 0
    24  	badPackets := 0
    25  	var uid *UserId
    26  	for {
    27  		op, err := or.Next()
    28  		if err == io.EOF {
    29  			break
    30  		} else if err != nil {
    31  			t.Errorf("#%d: opaque read error: %v", count, err)
    32  			break
    33  		}
    34  		// try to parse opaque packet
    35  		p, _ := op.Parse()
    36  		switch pkt := p.(type) {
    37  		case *UserId:
    38  			uid = pkt
    39  		case *OpaquePacket:
    40  			// If an OpaquePacket can't re-parse, packet.Read
    41  			// certainly had its reasons.
    42  			if pkt.Reason == nil {
    43  				t.Errorf("#%d: opaque packet, no reason", count)
    44  			} else {
    45  				badPackets++
    46  			}
    47  		}
    48  		count++
    49  	}
    50  
    51  	const expectedBad = 3
    52  	// Test post-conditions, make sure we actually parsed packets as expected.
    53  	if badPackets != expectedBad {
    54  		t.Errorf("unexpected # unparseable packets: %d (want %d)", badPackets, expectedBad)
    55  	}
    56  	if uid == nil {
    57  		t.Errorf("failed to find expected UID in unsupported keyring")
    58  	} else if uid.Id != "Armin M. Warda <warda@nephilim.ruhr.de>" {
    59  		t.Errorf("unexpected UID: %v", uid.Id)
    60  	}
    61  }
    62  
    63  // This key material has public key and signature packet versions modified to
    64  // an unsupported value (1), so that trying to parse the OpaquePacket to
    65  // a typed packet will get an error. It also contains a GnuPG trust packet.
    66  // (Created with: od -An -t x1 pubring.gpg | xargs | sed 's/ //g')
    67  const UnsupportedKeyHex = `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`
    68
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