public void OfdReaderFileInfoTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
FileInfo fileInfo = new FileInfo(filePath);
OfdReader reader = new OfdReader(fileInfo);
Assert.IsNotNull(reader);
}
public void OfdReaderFileTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
OfdReader reader = new OfdReader(filePath);
Assert.IsNotNull(reader);
Assert.AreEqual(reader.FileInfo.FullName, filePath);
}
public void OfdReaderFileTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
FileStream fileStream = File.OpenRead(filePath);
OfdReader reader = new OfdReader(fileStream);
Assert.IsNotNull(reader);
}
public void ExeValidateInvalidFileTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "032001900311_25577301.ofd");
OfdReader reader = new OfdReader(filePath);
VerifyResult verifyResult = OfdValidator.Validate(reader);
Assert.IsNotNull(verifyResult);
Assert.AreEqual(VerifyResult.Success, verifyResult);
}
public void GetSignaturesTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
OfdReader reader = new OfdReader(filePath);
Assert.IsNotNull(reader);
string signatures = reader.GetSignatures();
Assert.IsNotNull(signatures);
}
public void GetBodyTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
OfdReader reader = new OfdReader(filePath);
Assert.IsNotNull(reader);
string body = reader.GetBody();
Assert.IsNotNull(body);
}
/// <summary>
/// 验证文件完整性
/// </summary>
private static VerifyResult CheckFileIntegrity(OfdReader reader, Signature signature, IDigest digest)
{
foreach (Reference referenceItem in signature.SignedInfo.ReferenceCollect.Items)
{
VerifyResult verifyResult = CheckFileIntegrity(reader, digest, referenceItem);
if (verifyResult != VerifyResult.Success)
{
return(verifyResult);
}
}
return(VerifyResult.Success);
}
/// <summary>
/// 检查电子签章数据
/// 验证文件：Doc_0\Signs\Sign_0\Signature.xml、Doc_0\Signs\Sign_0\SignedValue.dat
/// </summary>
private static VerifyResult CheckSignedValue(OfdReader reader, Signature signature)
{
string signatureFilePath = reader.GetSignatures();
byte[] tbsContent = reader.ReadContent(signatureFilePath);
byte[] signedValue = reader.ReadContent(signature.SignedValue);
SesV4ValidateContainer validateContainer = new SesV4ValidateContainer();
//SesV1ValidateContainer validateContainer = new SesV1ValidateContainer();
return(validateContainer.Validate(SigType.Seal, tbsContent, signedValue));
}
public void GetInvoiceInfoTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
OfdReader reader = new OfdReader(filePath);
Assert.IsNotNull(reader);
InvoiceInfo invoiceInfo = reader.GetInvoiceInfo();
Assert.IsNotNull(invoiceInfo);
Console.WriteLine(DateTime.Parse(invoiceInfo.IssueDate));
Assert.AreEqual(9709m, decimal.Parse(invoiceInfo.TaxExclusiveTotalAmount));
}
/// <summary>
/// 验证文件完整性
/// </summary>
private static VerifyResult CheckFileIntegrity(OfdReader reader, IDigest digest, Reference item)
{
byte[] contentBytes = reader.ReadContent(item.FileRef);
digest.BlockUpdate(contentBytes, 0, contentBytes.Length);
byte[] output = new byte[32];
digest.DoFinal(output, 0);
byte[] checkBytes = Convert.FromBase64String(item.CheckValue.Value);
if (!Arrays.AreEqual(output, checkBytes))
{
return(VerifyResult.FileTampered);
}
return(VerifyResult.Success);
}
public void GetSignaturesByStreamTest()
{
string filePath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "test.ofd");
FileStream stream = File.OpenRead(filePath);
OfdReader reader = new OfdReader(stream);
Assert.IsNotNull(reader);
string signatures = reader.GetSignatures();
Assert.IsNotNull(signatures);
reader.Close();
}
public List <StampAnnot> GetAppearance(OfdReader ctx, AtomicSignId idProvider)
{
// 解析OFD页码获取页面对应的ID
string id = string.Empty; //ctx.getPageObjectId(page).ref ();
StampAnnot annotation = new StampAnnot()
{
Id = idProvider.IncrementAndGet(),
Boundary = $"{Tlx} {Tly} {Width} {Height}",
PageRef = string.Empty
};
List <StampAnnot> res = new List <StampAnnot>(1)
{
annotation
};
return(res);
}
public List <StampAnnotation> GetAppearance(OfdReader ctx, AtomicSignId idProvider)
{
// 解析OFD页码获取页面对应的ID
string id = string.Empty; //ctx.getPageObjectId(page).ref ();
StampAnnotation annotation = new StampAnnotation(null)
{
Id = idProvider.IncrementAndGet(),
Boundary = (new StBox(Tlx, Tly, Width, Height)),
PageRef = string.Empty
};
List <StampAnnotation> res = new List <StampAnnotation>(1)
{
annotation
};
return(res);
}
/// <summary>
/// 执行OFD电子签名验证
///校验过程：
/// 1. 检查文件完整性
/// 获取SignedInfo节点
/// 1）从此节点获取References，References由多个Reference组成
/// 2）从此节点获取CheckMethod，签名方法: IDigest digest = DigestUtilities.GetDigest(GMObjectIdentifiers.sm3);//1.2.156.10197.1.401
/// 3）循环每个Reference，FileRef节点指名了签名文件路径，CheckValue节点指名了签名值base64字符串
/// 4）读取FileRef指向的文件的内容
/// 5）使用3）步获取签名方法对文件内容签名，并与CheckValue获取的值比较
/// 2.签章验证
/// 1）获取SignedValue节点，获取签章值文件路径：/Doc_0/Signs/Sign_0/SignedValue.dat
/// 2）从SignedInfo节点下获取Seal节点，获取印章数据文件路径：/Doc_0/Signs/Sign_0/Seal.esl
/// 3）读取印章数据文件并检查印章匹配
/// 4）获取SignatureMethod节点，获取签名算法名称：1.2.156.10197.1.501，获取签名算法：IDigest digest = DigestUtilities.GetDigest(GMObjectIdentifiers.sm2sign_with_sm3);//1.2.156.10197.1.401
/// 5）使用签章数据检验签名信息是否匹配
/// </summary>
public static VerifyResult Validate(OfdReader reader)
{
//1、读取OFD.xml文件的ofd:Signatures节点
//2、读取Doc_0\Signs\Signatures.xml文件的ofd:Signature节点，从BaseLoc特性获取签名文件路径，如/Doc_0/Signs/Sign_0/Signature.xml
//3、读取/Doc_0/Signs/Sign_0/Signature.xml文件
Signature signature = reader.GetSignature();
//获取签名算法
IDigest digest = DigestUtilities.GetDigest(signature.SignedInfo.ReferenceCollect.CheckMethod);
//验证文件完整性
VerifyResult result = CheckFileIntegrity(reader, signature, digest);
if (result != VerifyResult.Success)
{
return(result);
}
//电子印章与电子签章数据的匹配性检查
result = CheckSealMatch(reader, signature);
//检查电子签章数据
return(result == VerifyResult.Success ? CheckSignedValue(reader, signature) : result);
}
/// <summary>
/// 检查印章匹配[可选-存在Seal.esl则验证，不存在不验证]
/// 验证文件：Doc_0\Signs\Sign_0\Seal.esl、Doc_0\Signs\Sign_0\SignedValue.dat
/// </summary>
private static VerifyResult CheckSealMatch(OfdReader reader, Signature signature)
{
if (signature.SignedInfo.Seal == null)
{
return(VerifyResult.Success);
}
byte[] sesSignatureBin = reader.ReadContent(signature.SignedValue);
SesVersionHolder holder = VersionParser.ParseSignatureVersion(sesSignatureBin);
if (holder.Version == SesVersion.V4)
{
SesSignature v4Signature = SesSignature.GetInstance(holder.Sequence);
SeSeal seal = v4Signature.TbsSign.EsSeal;
byte[] expect = seal.GetDerEncoded();
byte[] sealBytes = reader.ReadContent(signature.SignedInfo.Seal.BaseLoc.Value);
if (!Arrays.AreEqual(expect, sealBytes))
{
return(VerifyResult.SealNotMatch);
}
}
return(VerifyResult.Success);
}
public List <StampAnnotation> GetAppearance(OfdReader ctx, AtomicSignId idProvider)
{
throw new NotImplementedException();
//// 总页码数
//int numPage = ctx.getNumberOfPages();
//List<StampAnnot> res = new ArrayList<>(numPage);
//if (side == Side.Right || side == Side.Left)
//{
// // 按页码平分印章图片
// double itemWith = this.width / numPage;
// for (int i = 0; i < numPage; i++)
// {
// Page page = ctx.getPage(i + 1);
// ST_Box pageSize = ctx.getPageSize(page);
// double x;
// ST_Box clip = null;
// if (side == Side.Right)
// {
// x = pageSize.getWidth() - itemWith * (i + 1);
// clip = new ST_Box(i * itemWith, 0, itemWith, this.height);
// }
// else
// {
// x = 0 - itemWith * (numPage - 1 - i);
// clip = new ST_Box((numPage - 1 - i) * itemWith, 0, itemWith, this.height);
// }
// double y = pageSize.getHeight() / 2 - this.height / 2;
// ST_RefID ref = ctx.getPageObjectId(i + 1).ref ();
// StampAnnot annot = new StampAnnot()
// .setID(idProvider.incrementAndGet())
// .setBoundary(new ST_Box(x, y, this.width, this.height))
// .setPageRef(ref)
// .setClip(clip);
// res.add(annot);
// }
//}
//else
//{
// double itemHeight = this.height / numPage;
// for (int i = 0; i < numPage; i++)
// {
// Page page = ctx.getPage(i + 1);
// ST_Box pageSize = ctx.getPageSize(page);
// double x = pageSize.getWidth() / 2 - this.width / 2;
// double y;
// ST_Box clip = null;
// if (side == Side.Bottom)
// {
// y = pageSize.getHeight() - itemHeight * (i + 1);
// clip = new ST_Box(0, itemHeight * i, this.width, itemHeight);
// }
// else
// {
// y = 0 - itemHeight * (numPage - 1 - i);
// clip = new ST_Box(0, (numPage - 1 - i) * itemHeight, this.width, itemHeight);
// }
// ST_RefID ref = ctx.getPageObjectId(i + 1).ref ();
// StampAnnot annot = new StampAnnot()
// .setID(idProvider.incrementAndGet())
// .setBoundary(new ST_Box(x, y, this.width, this.height))
// .setPageRef(ref)
// .setClip(clip);
// res.add(annot);
// }
//}
//return res;
}
