private bool verifyReceipt(string receipt)
{
#if UNITY_ANDROID
try {
var fields = (Dictionary <string, object>)MiniJSON.jsonDecode(receipt);
if (null == fields)
{
return(false);
}
var base64Signature = fields.getString("signature");
var json = fields.getString("json");
if (null == base64Signature || null == json)
{
return(false);
}
byte[] signature = Convert.FromBase64String(base64Signature);
SHA1Managed sha = new SHA1Managed();
byte[] data = Encoding.UTF8.GetBytes(json);
return(cryptoProvider.VerifyData(data, sha, signature));
} catch (Exception e) {
logger.Log("Validation exception");
logger.Log(e.Message);
logger.Log(e.StackTrace.ToString());
return(false);
}
#else
return(true);
#endif
}
public static Dictionary <string, object> hashtableFromJson(this string json)
{
return(MiniJSON.jsonDecode(json) as Dictionary <string, object>);
}
public static List <object> arrayListFromJson(this string json)
{
return(MiniJSON.jsonDecode(json) as List <object>);
}
private IEnumerator download(string bundleId)
{
// Do we have a partial download?
Directory.CreateDirectory(getDataPath(bundleId));
if (!File.Exists(getZipPath(bundleId)))
{
logger.Log(bundleId);
string downloadToken = "";
// Get a download token.
{
Dictionary <string, string> parameters = new Dictionary <string, string> ();
try {
parameters.Add("receipt", receiptStore.getItemReceiptForFilebundle(bundleId));
} catch (ArgumentException) {
onDownloadFailedPermanently(bundleId, string.Format("Bundle {0} no longer defined in inventory!", bundleId));
yield break;
}
parameters.Add("bundleId", bundleId);
parameters.Add("platform", platform.ToString());
parameters.Add("appSecret", appSecret);
parameters.Add("version", getVersionToDownload(bundleId));
parameters.Add("unibillVersion", AnalyticsReporter.UNIBILL_VERSION);
yield return(fetcher.doPost(DOWNLOAD_TOKEN_URL, parameters));
var response = fetcher.getResponse();
if (!string.IsNullOrEmpty(response.error))
{
logger.Log("Error downloading content: {0}. Unibill will retry later.", response.error);
yield return(getRandomSleep());
yield break;
}
var downloadTokenHash = (Dictionary <string, object>)MiniJSON.jsonDecode(response.contentString);
if (null == downloadTokenHash)
{
logger.Log("Error fetching download token. Unibill will retry later.");
yield return(getRandomSleep());
yield break;
}
bool success = bool.Parse(downloadTokenHash ["success"].ToString());
if (!success)
{
logger.LogError("Error downloading bundle {0}. Download abandoned.", bundleId);
var errorString = "";
if (downloadTokenHash.ContainsKey("error"))
{
errorString = downloadTokenHash ["error"].ToString();
logger.LogError(errorString);
}
onDownloadFailedPermanently(bundleId, errorString);
yield break;
}
if (!downloadTokenHash.ContainsKey("url"))
{
logger.LogError("Error fetching download token. Missing URL. Will retry");
yield return(getRandomSleep());
yield break;
}
downloadToken = downloadTokenHash ["url"].ToString();
// Persist this version token for resumed downloads.
if (!downloadTokenHash.ContainsKey("version"))
{
logger.LogError("Error fetching download token. Missing version. Will retry");
yield return(getRandomSleep());
yield break;
}
var version = downloadTokenHash ["version"].ToString();
saveVersion(bundleId, version);
}
// Figure out the content length.
// We can't do a HEAD because of Unity's wonderful
// WWW class, so we do a 2 byte range GET and look at the headers.
Dictionary <string, string> headers = new Dictionary <string, string> ();
// These headers are required since on iOS
// Unity wrongly adds if-modified headers that cause google to (rightly)
// return content not modified.
headers ["If-Modified-Since"] = "Tue, 1 Jan 1980 00:00:00 GMT";
headers ["If-None-Match"] = "notanetag";
long contentLength;
{
headers ["Range"] = "bytes=0-1";
yield return(fetcher.doGet(downloadToken, headers));
IHTTPRequest response = fetcher.getResponse();
if (isContentNotFound(response))
{
string error = string.Format("404 - Downloadable Content missing for bundle {0}!", bundleId);
logger.LogError(error);
onDownloadFailedPermanently(bundleId, error);
yield break;
}
if (!response.responseHeaders.ContainsKey("CONTENT-RANGE"))
{
logger.LogError("Malformed server response. Missing content-range");
logger.LogError(response.error);
yield return(getRandomSleep());
yield break;
}
string contentRange = response.responseHeaders ["CONTENT-RANGE"].ToString();
contentLength = long.Parse(contentRange.Split(new char[] { '/' }, 2) [1]);
}
#if !UNITY_METRO
//// Fetch the content.
{
PurchasableItem downloadingItem = receiptStore.getItemFromFileBundle(bundleId);
using (fileStream = openDownload(bundleId)) {
long rangeStart = fileStream.Length;
if (rangeStart > 0)
{
fileStream.Seek(0, SeekOrigin.End);
}
long rangeEnd = Math.Min(rangeStart + bufferSize, contentLength);
int lastProgress = -1;
while (rangeStart < rangeEnd)
{
string header = string.Format("bytes={0}-{1}", rangeStart, rangeEnd);
headers ["Range"] = header;
yield return(fetcher.doGet(downloadToken, headers));
var response = fetcher.getResponse();
if (!string.IsNullOrEmpty(response.error))
{
logger.LogError("Error downloading content. Will retry.");
logger.LogError(response.error);
yield return(getRandomSleep());
yield break;
}
int progress = (int)(((float)rangeEnd / (float)contentLength) * 100.0f);
progress = Math.Min(99, progress);
if (null != onDownloadProgressedEvent && lastProgress != progress)
{
onDownloadProgressedEvent(downloadingItem, progress);
lastProgress = progress;
}
// This should never happen, but avoids crashing our coroutine.
if (response.bytes.Length > BUFFER.Length)
{
logger.LogError("Malformed content. Unexpected length. Will retry.");
yield return(getRandomSleep());
yield break;
}
// Copy the data into our writer thread's buffer.
// Writing the data to disk on the main thread takes too long.
Buffer.BlockCopy(response.bytes, 0, BUFFER, 0, response.bytes.Length);
bytesReceived = response.bytes.Length;
DATA_FLUSHED = false;
// Notify our writer and wait for it to complete.
DATA_READY.Set();
while (!DATA_FLUSHED)
{
yield return(waiter);
}
// Advance our range.
rangeStart = rangeEnd + 1;
rangeEnd = rangeStart + bufferSize;
rangeEnd = Math.Min(rangeEnd, contentLength);
}
}
}
#endif
File.Move(getPartialPath(bundleId), getZipPath(bundleId));
File.Delete(getVersionPath(bundleId));
}
UNPACK_FINISHED = false;
util.RunOnThreadPool(() => {
Unpack(bundleId);
});
while (!UNPACK_FINISHED)
{
yield return(waiter);
}
removeDownloadFromQueues(bundleId);
if (null != onDownloadCompletedEvent)
{
onDownloadCompletedEvent(receiptStore.getItemFromFileBundle(bundleId), getContentPath(bundleId));
}
}