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authorAndreas Fitzek <andreas.fitzek@iaik.tugraz.at>2014-01-21 09:57:16 +0100
committerAndreas Fitzek <andreas.fitzek@iaik.tugraz.at>2014-01-21 09:57:16 +0100
commit2436aa273f00dafb465c2342ea8e7297898915d2 (patch)
tree27cf115b4ec6d36f84b01b50acc403cf31b3ab6b /pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl
parent8d801ab37834b0f11c6a16c240d77da71a6ab816 (diff)
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Implementations for pdf-as-web and pdf-as-legacy
Diffstat (limited to 'pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl')
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java110
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/VerifyParameterImpl.java12
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java3
3 files changed, 77 insertions, 48 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
index e9332bc2..04b385f7 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
@@ -76,26 +76,27 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
if (!(parameter.getConfiguration() instanceof ISettings)) {
throw new PdfAsSettingsException("Invalid settings object!");
}
-
+
ISettings settings = (ISettings) parameter.getConfiguration();
-
+
String signatureProfile = parameter.getSignatureProfileId();
- if(signatureProfile != null) {
- if(!settings.hasPrefix("sig_obj." + signatureProfile + ".key")) {
- throw new PdfAsValidationException("error.pdf.sig.09", signatureProfile);
+ if (signatureProfile != null) {
+ if (!settings.hasPrefix("sig_obj." + signatureProfile + ".key")) {
+ throw new PdfAsValidationException("error.pdf.sig.09",
+ signatureProfile);
}
}
-
+
// TODO: verify Sign Parameter
}
-
+
private void verifyVerifyParameter(VerifyParameter parameter)
throws PdfAsException {
// Status initialization
if (!(parameter.getConfiguration() instanceof ISettings)) {
throw new PdfAsSettingsException("Invalid settings object!");
}
-
+
// TODO: verify Verify Parameter
}
@@ -170,9 +171,11 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
public List<VerifyResult> verify(VerifyParameter parameter)
throws PdfAsException {
-
+
verifyVerifyParameter(parameter);
-
+
+ int signatureToVerify = parameter.getWhichSignature();
+ int currentSignature = 0;
PDDocument doc = null;
try {
List<VerifyResult> result = new ArrayList<VerifyResult>();
@@ -192,50 +195,63 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
COSDictionary field = (COSDictionary) fields.getObject(i);
String type = field.getNameAsString("FT");
if ("Sig".equals(type)) {
- logger.trace("Found Signature: ");
- COSBase base = field.getDictionaryObject("V");
- COSDictionary dict = (COSDictionary) base;
-
- logger.debug("Signer: " + dict.getNameAsString("Name"));
- logger.debug("SubFilter: "
- + dict.getNameAsString("SubFilter"));
- logger.debug("Filter: " + dict.getNameAsString("Filter"));
- logger.debug("Modified: " + dict.getNameAsString("M"));
- COSArray byteRange = (COSArray) dict
- .getDictionaryObject("ByteRange");
-
- StringBuilder sb = new StringBuilder();
- int[] bytes = new int[byteRange.size()];
- for (int j = 0; j < byteRange.size(); j++) {
- bytes[j] = byteRange.getInt(j);
- sb.append(" " + bytes[j]);
- }
+ boolean verifyThis = true;
- logger.debug("ByteRange" + sb.toString());
+ if (signatureToVerify >= 0) {
+ // verify only specific siganture!
+ verifyThis = signatureToVerify == currentSignature;
+ }
- COSString content = (COSString) dict
- .getDictionaryObject("Contents");
+ if (verifyThis) {
+ logger.trace("Found Signature: ");
+ COSBase base = field.getDictionaryObject("V");
+ COSDictionary dict = (COSDictionary) base;
+
+ logger.debug("Signer: " + dict.getNameAsString("Name"));
+ logger.debug("SubFilter: "
+ + dict.getNameAsString("SubFilter"));
+ logger.debug("Filter: "
+ + dict.getNameAsString("Filter"));
+ logger.debug("Modified: " + dict.getNameAsString("M"));
+ COSArray byteRange = (COSArray) dict
+ .getDictionaryObject("ByteRange");
+
+ StringBuilder sb = new StringBuilder();
+ int[] bytes = new int[byteRange.size()];
+ for (int j = 0; j < byteRange.size(); j++) {
+ bytes[j] = byteRange.getInt(j);
+ sb.append(" " + bytes[j]);
+ }
- ByteArrayOutputStream contentData = new ByteArrayOutputStream();
- for (int j = 0; j < bytes.length; j = j + 2) {
- int offset = bytes[j];
- int length = bytes[j + 1];
- contentData.write(parameter.getDataSource()
- .getByteData(), offset, length);
- }
- contentData.close();
+ logger.debug("ByteRange" + sb.toString());
- IVerifyFilter verifyFilter = verifier.getVerifier(
- dict.getNameAsString("Filter"),
- dict.getNameAsString("SubFilter"));
+ COSString content = (COSString) dict
+ .getDictionaryObject("Contents");
- if (verifyFilter != null) {
- List<VerifyResult> results = verifyFilter.verify(
- contentData.toByteArray(), content.getBytes());
- if (results != null && !results.isEmpty()) {
- result.addAll(results);
+ ByteArrayOutputStream contentData = new ByteArrayOutputStream();
+ for (int j = 0; j < bytes.length; j = j + 2) {
+ int offset = bytes[j];
+ int length = bytes[j + 1];
+ contentData.write(parameter.getDataSource()
+ .getByteData(), offset, length);
+ }
+ contentData.close();
+
+ IVerifyFilter verifyFilter = verifier.getVerifier(
+ dict.getNameAsString("Filter"),
+ dict.getNameAsString("SubFilter"));
+
+ if (verifyFilter != null) {
+ List<VerifyResult> results = verifyFilter.verify(
+ contentData.toByteArray(),
+ content.getBytes(),
+ parameter.getVerificationTime());
+ if (results != null && !results.isEmpty()) {
+ result.addAll(results);
+ }
}
}
+ currentSignature++;
}
}
return result;
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/VerifyParameterImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/VerifyParameterImpl.java
index 3b264938..d754c032 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/VerifyParameterImpl.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/VerifyParameterImpl.java
@@ -1,5 +1,7 @@
package at.gv.egiz.pdfas.lib.impl;
+import java.util.Date;
+
import at.gv.egiz.pdfas.lib.api.Configuration;
import at.gv.egiz.pdfas.lib.api.DataSource;
import at.gv.egiz.pdfas.lib.api.verify.VerifyParameter;
@@ -8,6 +10,8 @@ public class VerifyParameterImpl extends PdfAsParameterImpl implements VerifyPar
protected int which = - 1;
+ protected Date verificationTime = null;
+
public VerifyParameterImpl(Configuration configuration,
DataSource dataSource) {
super(configuration, dataSource);
@@ -20,4 +24,12 @@ public class VerifyParameterImpl extends PdfAsParameterImpl implements VerifyPar
public void setWhichSignature(int which) {
this.which = which;
}
+
+ public Date getVerificationTime() {
+ return verificationTime;
+ }
+
+ public void setVerificationTime(Date verificationTime) {
+ this.verificationTime = verificationTime;
+ }
}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java
index 53c2e342..e83b6132 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java
@@ -1,5 +1,6 @@
package at.gv.egiz.pdfas.lib.impl.verify;
+import java.util.Date;
import java.util.List;
import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
@@ -8,6 +9,6 @@ import at.gv.egiz.pdfas.lib.api.verify.VerifyResult;
public interface IVerifyFilter {
public void setConfiguration(Configuration config);
- public List<VerifyResult> verify(byte[] contentData, byte[] signatureContent) throws PdfAsException;
+ public List<VerifyResult> verify(byte[] contentData, byte[] signatureContent, Date verificationTime) throws PdfAsException;
public List<FilterEntry> getFiters();
}