diff options
Diffstat (limited to 'libraries/spongycastle/mail/src/main/java/org/spongycastle/mail/smime/SMIMEUtil.java')
| -rw-r--r-- | libraries/spongycastle/mail/src/main/java/org/spongycastle/mail/smime/SMIMEUtil.java | 623 |
1 files changed, 0 insertions, 623 deletions
diff --git a/libraries/spongycastle/mail/src/main/java/org/spongycastle/mail/smime/SMIMEUtil.java b/libraries/spongycastle/mail/src/main/java/org/spongycastle/mail/smime/SMIMEUtil.java deleted file mode 100644 index b2f36e6f0..000000000 --- a/libraries/spongycastle/mail/src/main/java/org/spongycastle/mail/smime/SMIMEUtil.java +++ /dev/null @@ -1,623 +0,0 @@ -package org.bouncycastle.mail.smime; - -import java.io.ByteArrayInputStream; -import java.io.File; -import java.io.FilterOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.security.NoSuchProviderException; -import java.security.Provider; -import java.security.Security; -import java.security.cert.CertificateParsingException; -import java.security.cert.X509Certificate; -import java.util.Enumeration; - -import javax.mail.BodyPart; -import javax.mail.MessagingException; -import javax.mail.internet.ContentType; -import javax.mail.internet.MimeBodyPart; -import javax.mail.internet.MimeMultipart; - -import org.bouncycastle.asn1.cms.IssuerAndSerialNumber; -import org.bouncycastle.cms.CMSTypedStream; -import org.bouncycastle.jce.PrincipalUtil; -import org.bouncycastle.mail.smime.util.CRLFOutputStream; -import org.bouncycastle.mail.smime.util.FileBackedMimeBodyPart; - -public class SMIMEUtil -{ - private static final int BUF_SIZE = 32760; - - static boolean isCanonicalisationRequired( - MimeBodyPart bodyPart, - String defaultContentTransferEncoding) - throws MessagingException - { - String[] cte = bodyPart.getHeader("Content-Transfer-Encoding"); - String contentTransferEncoding; - - if (cte == null) - { - contentTransferEncoding = defaultContentTransferEncoding; - } - else - { - contentTransferEncoding = cte[0]; - } - - return !contentTransferEncoding.equalsIgnoreCase("binary"); - } - - public static Provider getProvider(String providerName) - throws NoSuchProviderException - { - if (providerName != null) - { - Provider prov = Security.getProvider(providerName); - - if (prov != null) - { - return prov; - } - - throw new NoSuchProviderException("provider " + providerName + " not found."); - } - - return null; - } - - static class LineOutputStream extends FilterOutputStream - { - private static byte newline[]; - - public LineOutputStream(OutputStream outputstream) - { - super(outputstream); - } - - public void writeln(String s) - throws MessagingException - { - try - { - byte abyte0[] = getBytes(s); - super.out.write(abyte0); - super.out.write(newline); - } - catch(Exception exception) - { - throw new MessagingException("IOException", exception); - } - } - - public void writeln() - throws MessagingException - { - try - { - super.out.write(newline); - } - catch(Exception exception) - { - throw new MessagingException("IOException", exception); - } - } - - static - { - newline = new byte[2]; - newline[0] = 13; - newline[1] = 10; - } - - private static byte[] getBytes(String s) - { - char ac[] = s.toCharArray(); - int i = ac.length; - byte abyte0[] = new byte[i]; - int j = 0; - - while (j < i) - { - abyte0[j] = (byte)ac[j++]; - } - - return abyte0; - } - } - - /** - * internal preamble is generally included in signatures, while this is technically wrong, - * if we find internal preamble we include it by default. - */ - static void outputPreamble(LineOutputStream lOut, MimeBodyPart part, String boundary) - throws MessagingException, IOException - { - InputStream in; - - try - { - in = part.getRawInputStream(); - } - catch (MessagingException e) - { - return; // no underlying content rely on default generation - } - - String line; - - while ((line = readLine(in)) != null) - { - if (line.equals(boundary)) - { - break; - } - - lOut.writeln(line); - } - - in.close(); - - if (line == null) - { - throw new MessagingException("no boundary found"); - } - } - - /** - * internal postamble is generally included in signatures, while this is technically wrong, - * if we find internal postamble we include it by default. - */ - static void outputPostamble(LineOutputStream lOut, MimeBodyPart part, int count, String boundary) - throws MessagingException, IOException - { - InputStream in; - - try - { - in = part.getRawInputStream(); - } - catch (MessagingException e) - { - return; // no underlying content rely on default generation - } - - String line; - int boundaries = count + 1; - - while ((line = readLine(in)) != null) - { - if (line.startsWith(boundary)) - { - boundaries--; - - if (boundaries == 0) - { - break; - } - } - } - - while ((line = readLine(in)) != null) - { - lOut.writeln(line); - } - - in.close(); - - if (boundaries != 0) - { - throw new MessagingException("all boundaries not found for: " + boundary); - } - } - - static void outputPostamble(LineOutputStream lOut, BodyPart parent, String parentBoundary, BodyPart part) - throws MessagingException, IOException - { - InputStream in; - - try - { - in = ((MimeBodyPart)parent).getRawInputStream(); - } - catch (MessagingException e) - { - return; // no underlying content rely on default generation - } - - - MimeMultipart multipart = (MimeMultipart)part.getContent(); - ContentType contentType = new ContentType(multipart.getContentType()); - String boundary = "--" + contentType.getParameter("boundary"); - int count = multipart.getCount() + 1; - String line; - while (count != 0 && (line = readLine(in)) != null) - { - if (line.startsWith(boundary)) - { - count--; - } - } - - while ((line = readLine(in)) != null) - { - if (line.startsWith(parentBoundary)) - { - break; - } - lOut.writeln(line); - } - - in.close(); - } - - /* - * read a line of input stripping of the tailing \r\n - */ - private static String readLine(InputStream in) - throws IOException - { - StringBuffer b = new StringBuffer(); - - int ch; - while ((ch = in.read()) >= 0 && ch != '\n') - { - if (ch != '\r') - { - b.append((char)ch); - } - } - - if (ch < 0 && b.length() == 0) - { - return null; - } - - return b.toString(); - } - - static void outputBodyPart( - OutputStream out, - BodyPart bodyPart, - String defaultContentTransferEncoding) - throws MessagingException, IOException - { - if (bodyPart instanceof MimeBodyPart) - { - MimeBodyPart mimePart = (MimeBodyPart)bodyPart; - String[] cte = mimePart.getHeader("Content-Transfer-Encoding"); - String contentTransferEncoding; - - if (mimePart.getContent() instanceof MimeMultipart) - { - MimeMultipart mp = (MimeMultipart)bodyPart.getContent(); - ContentType contentType = new ContentType(mp.getContentType()); - String boundary = "--" + contentType.getParameter("boundary"); - - SMIMEUtil.LineOutputStream lOut = new SMIMEUtil.LineOutputStream(out); - - Enumeration headers = mimePart.getAllHeaderLines(); - while (headers.hasMoreElements()) - { - String header = (String)headers.nextElement(); - lOut.writeln(header); - } - - lOut.writeln(); // CRLF separator - - outputPreamble(lOut, mimePart, boundary); - - for (int i = 0; i < mp.getCount(); i++) - { - lOut.writeln(boundary); - BodyPart part = mp.getBodyPart(i); - outputBodyPart(out, part, defaultContentTransferEncoding); - if (!(part.getContent() instanceof MimeMultipart)) - { - lOut.writeln(); // CRLF terminator needed - } - else - { - outputPostamble(lOut, mimePart, boundary, part); - } - } - - lOut.writeln(boundary + "--"); - - outputPostamble(lOut, mimePart, mp.getCount(), boundary); - - return; - } - - if (cte == null) - { - contentTransferEncoding = defaultContentTransferEncoding; - } - else - { - contentTransferEncoding = cte[0]; - } - - if (!contentTransferEncoding.equalsIgnoreCase("base64") - && !contentTransferEncoding.equalsIgnoreCase("quoted-printable")) - { - if (!contentTransferEncoding.equalsIgnoreCase("binary")) - { - out = new CRLFOutputStream(out); - } - bodyPart.writeTo(out); - out.flush(); - return; - } - - boolean base64 = contentTransferEncoding.equalsIgnoreCase("base64"); - - // - // Write raw content, performing canonicalization - // - InputStream inRaw; - - try - { - inRaw = mimePart.getRawInputStream(); - } - catch (MessagingException e) - { - // this is less than ideal, but if the raw output stream is unavailable it's the - // best option we've got. - out = new CRLFOutputStream(out); - bodyPart.writeTo(out); - out.flush(); - return; - } - - // - // Write headers - // - LineOutputStream outLine = new LineOutputStream(out); - for (Enumeration e = mimePart.getAllHeaderLines(); e.hasMoreElements();) - { - String header = (String)e.nextElement(); - - outLine.writeln(header); - } - - outLine.writeln(); - outLine.flush(); - - - OutputStream outCRLF; - - if (base64) - { - outCRLF = new Base64CRLFOutputStream(out); - } - else - { - outCRLF = new CRLFOutputStream(out); - } - - byte[] buf = new byte[BUF_SIZE]; - - int len; - while ((len = inRaw.read(buf, 0, buf.length)) > 0) - { - - outCRLF.write(buf, 0, len); - } - - outCRLF.flush(); - } - else - { - if (!defaultContentTransferEncoding.equalsIgnoreCase("binary")) - { - out = new CRLFOutputStream(out); - } - - bodyPart.writeTo(out); - - out.flush(); - } - } - - /** - * return the MimeBodyPart described in the raw bytes provided in content - */ - public static MimeBodyPart toMimeBodyPart( - byte[] content) - throws SMIMEException - { - return toMimeBodyPart(new ByteArrayInputStream(content)); - } - - /** - * return the MimeBodyPart described in the input stream content - */ - public static MimeBodyPart toMimeBodyPart( - InputStream content) - throws SMIMEException - { - try - { - return new MimeBodyPart(content); - } - catch (MessagingException e) - { - throw new SMIMEException("exception creating body part.", e); - } - } - - static FileBackedMimeBodyPart toWriteOnceBodyPart( - CMSTypedStream content) - throws SMIMEException - { - try - { - return new WriteOnceFileBackedMimeBodyPart(content.getContentStream(), File.createTempFile("bcMail", ".mime")); - } - catch (IOException e) - { - throw new SMIMEException("IOException creating tmp file:" + e.getMessage(), e); - } - catch (MessagingException e) - { - throw new SMIMEException("can't create part: " + e, e); - } - } - - /** - * return a file backed MimeBodyPart described in {@link CMSTypedStream} content. - * </p> - */ - public static FileBackedMimeBodyPart toMimeBodyPart( - CMSTypedStream content) - throws SMIMEException - { - try - { - return toMimeBodyPart(content, File.createTempFile("bcMail", ".mime")); - } - catch (IOException e) - { - throw new SMIMEException("IOException creating tmp file:" + e.getMessage(), e); - } - } - - /** - * Return a file based MimeBodyPart represented by content and backed - * by the file represented by file. - * - * @param content content stream containing body part. - * @param file file to store the decoded body part in. - * @return the decoded body part. - * @throws SMIMEException - */ - public static FileBackedMimeBodyPart toMimeBodyPart( - CMSTypedStream content, - File file) - throws SMIMEException - { - try - { - return new FileBackedMimeBodyPart(content.getContentStream(), file); - } - catch (IOException e) - { - throw new SMIMEException("can't save content to file: " + e, e); - } - catch (MessagingException e) - { - throw new SMIMEException("can't create part: " + e, e); - } - } - - /** - * Return a CMS IssuerAndSerialNumber structure for the passed in X.509 certificate. - * - * @param cert the X.509 certificate to get the issuer and serial number for. - * @return an IssuerAndSerialNumber structure representing the certificate. - */ - public static IssuerAndSerialNumber createIssuerAndSerialNumberFor( - X509Certificate cert) - throws CertificateParsingException - { - try - { - return new IssuerAndSerialNumber(PrincipalUtil.getIssuerX509Principal(cert), cert.getSerialNumber()); - } - catch (Exception e) - { - throw new CertificateParsingException("exception extracting issuer and serial number: " + e); - } - } - - private static class WriteOnceFileBackedMimeBodyPart - extends FileBackedMimeBodyPart - { - public WriteOnceFileBackedMimeBodyPart(InputStream content, File file) - throws MessagingException, IOException - { - super(content, file); - } - - public void writeTo(OutputStream out) - throws MessagingException, IOException - { - super.writeTo(out); - - this.dispose(); - } - } - - static class Base64CRLFOutputStream extends FilterOutputStream - { - protected int lastb; - protected static byte newline[]; - private boolean isCrlfStream; - - public Base64CRLFOutputStream(OutputStream outputstream) - { - super(outputstream); - lastb = -1; - } - - public void write(int i) - throws IOException - { - if (i == '\r') - { - out.write(newline); - } - else if (i == '\n') - { - if (lastb != '\r') - { // imagine my joy... - if (!(isCrlfStream && lastb == '\n')) - { - out.write(newline); - } - } - else - { - isCrlfStream = true; - } - } - else - { - out.write(i); - } - - lastb = i; - } - - public void write(byte[] buf) - throws IOException - { - this.write(buf, 0, buf.length); - } - - public void write(byte buf[], int off, int len) - throws IOException - { - for (int i = off; i != off + len; i++) - { - this.write(buf[i]); - } - } - - public void writeln() - throws IOException - { - super.out.write(newline); - } - - static - { - newline = new byte[2]; - newline[0] = '\r'; - newline[1] = '\n'; - } - } -} |