public String getSignature(String baseString, OAuthParameters oauthParameters)
throws OAuthException {
try {
if (oauthParameters == null) {
throw new OAuthException("OAuth parameters cannot be null");
}
String keyString = getKey(oauthParameters);
SecretKey key = new SecretKeySpec(keyString.getBytes("UTF-8"), "HmacSHA1");
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(key);
return Base64.encode(mac.doFinal(baseString.getBytes("UTF-8")));
} catch (UnsupportedEncodingException e) {
throw new OAuthException(e);
} catch (NoSuchAlgorithmException e) {
throw new OAuthException(e);
} catch (InvalidKeyException e) {
throw new OAuthException(e);
}
}
public static ArrayList<String> extractDataFromZip(ZipInputStream zis)
throws IOException, SignedDataException {
ArrayList<String> lines = new ArrayList<String>();
String line = null;
String surveyDataOnly = null;
String dataSig = null;
ZipEntry entry;
while ((entry = zis.getNextEntry()) != null) {
log.info("Unzipping: " + entry.getName());
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[2048];
int size;
while ((size = zis.read(buffer, 0, buffer.length)) != -1) {
out.write(buffer, 0, size);
}
line = out.toString("UTF-8");
if (entry.getName().endsWith("txt")) {
if (entry.getName().equals("regions.txt")) {
lines.add("regionFlag=true");
} else {
surveyDataOnly = line;
}
String[] linesSplit = line.split("\n");
for (String s : linesSplit) {
if (s.contains("\u0000")) {
s = s.replaceAll("\u0000", "");
}
lines.add(s);
}
} else if (entry.getName().endsWith(".sig")) {
dataSig = line.trim();
} else {
S3Driver s3 = new S3Driver();
String[] imageParts = entry.getName().split("/");
// comment out while testing locally
try {
// GAEImageAdapter gaeIA = new GAEImageAdapter();
// byte[] resizedImage =
// gaeIA.resizeImage(out.toByteArray(), 500, 500);
// s3.uploadFile("dru-test", imageParts[1], resizedImage);
GAEImageAdapter gaeImg = new GAEImageAdapter();
byte[] newImage = gaeImg.resizeImage(out.toByteArray(), 500, 500);
s3.uploadFile("dru-test", imageParts[1], newImage);
// add queue call to resize
Queue queue = QueueFactory.getDefaultQueue();
queue.add(TaskOptions.Builder.withUrl("imageprocessor").param("imageURL", imageParts[1]));
log.info("submiting image resize for imageURL: " + imageParts[1]);
} catch (Exception ex) {
ex.printStackTrace();
}
out.close();
}
zis.closeEntry();
}
// check the signature if we have it
if (surveyDataOnly != null && dataSig != null) {
try {
MessageDigest sha1Digest = MessageDigest.getInstance("SHA1");
byte[] digest = sha1Digest.digest(surveyDataOnly.getBytes("UTF-8"));
SecretKeySpec signingKey =
new SecretKeySpec(
PropertyUtil.getProperty(SIGNING_KEY).getBytes("UTF-8"), SIGNING_ALGORITHM);
Mac mac = Mac.getInstance(SIGNING_ALGORITHM);
mac.init(signingKey);
byte[] hmac = mac.doFinal(digest);
String encodedHmac = com.google.gdata.util.common.util.Base64.encode(hmac);
if (!encodedHmac.trim().equals(dataSig.trim())) {
String allowUnsigned = PropertyUtil.getProperty(ALLOW_UNSIGNED);
if (allowUnsigned != null && allowUnsigned.trim().equalsIgnoreCase("false")) {
throw new SignedDataException(
"Computed signature does not match the one submitted with the data");
} else {
log.warning("Signatures don't match. Processing anyway since allow unsigned is true");
}
}
} catch (GeneralSecurityException e) {
throw new SignedDataException("Could not calculate signature", e);
}
} else if (surveyDataOnly != null) {
// if there is no signature, check the configuration to see if we
// are allowed to proceed
String allowUnsigned = PropertyUtil.getProperty(ALLOW_UNSIGNED);
if (allowUnsigned != null && allowUnsigned.trim().equalsIgnoreCase("false")) {
throw new SignedDataException("Datafile does not have a signature");
}
}
return lines;
}
