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Added a number-of-redirects parameter to URL::createInputStream

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This commit is contained in:
jules 2014-12-29 10:15:54 +00:00
parent 4d1a63fe3b
commit 268497e8bc
10 changed files with 285 additions and 102 deletions
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117
modules/juce_core/native/java/JuceAppActivity.java
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@ -666,38 +666,103 @@ public final class JuceAppActivity extends Activity
public static final HTTPStream createHTTPStream (String address,
boolean isPost, byte[] postData, String headers,
int timeOutMs, int[] statusCode,
StringBuffer responseHeaders)
StringBuffer responseHeaders,
int numRedirectsToFollow)
{
try
{
HttpURLConnection connection = (HttpURLConnection) (new URL(address)
.openConnection());
if (connection != null)
{
try
{
if (isPost)
{
connection.setRequestMethod("POST");
connection.setConnectTimeout(timeOutMs);
connection.setDoOutput(true);
connection.setChunkedStreamingMode(0);
OutputStream out = connection.getOutputStream();
out.write(postData);
out.flush();
}
// timeout parameter of zero for HttpUrlConnection is a blocking connect (negative value for juce::URL)
if (timeOutMs < 0)
timeOutMs = 0;
else if (timeOutMs == 0)
timeOutMs = 30000;
return new HTTPStream (connection, statusCode, responseHeaders);
}
catch (Throwable e)
// headers - if not empty, this string is appended onto the headers that are used for the request. It must therefore be a valid set of HTML header directives, separated by newlines.
// So convert headers string to an array, with an element for each line
String headerLines[] = headers.split("\\n");
for (;;)
{
try
{
HttpURLConnection connection = (HttpURLConnection) (new URL(address).openConnection());
if (connection != null)
{
connection.disconnect();
try
{
connection.setInstanceFollowRedirects (false);
connection.setConnectTimeout (timeOutMs);
connection.setReadTimeout (timeOutMs);
// Set request headers
for (int i = 0; i < headerLines.length; ++i)
{
int pos = headerLines[i].indexOf (":");
if (pos > 0 && pos < headerLines[i].length())
{
String field = headerLines[i].substring (0, pos);
String value = headerLines[i].substring (pos + 1);
if (value.length() > 0)
connection.setRequestProperty (field, value);
}
}
if (isPost)
{
connection.setRequestMethod ("POST");
connection.setDoOutput (true);
if (postData != null)
{
OutputStream out = connection.getOutputStream();
out.write(postData);
out.flush();
}
}
HTTPStream httpStream = new HTTPStream (connection, statusCode, responseHeaders);
// Process redirect & continue as necessary
int status = statusCode[0];
if (--numRedirectsToFollow >= 0
&& (status == 301 || status == 302 || status == 303 || status == 307))
{
// Assumes only one occurrence of "Location"
int pos1 = responseHeaders.indexOf ("Location:") + 10;
int pos2 = responseHeaders.indexOf ("\n", pos1);
if (pos2 > pos1)
{
String newLocation = responseHeaders.substring(pos1, pos2);
// Handle newLocation whether it's absolute or relative
URL baseUrl = new URL (address);
URL newUrl = new URL (baseUrl, newLocation);
String transformedNewLocation = newUrl.toString();
if (transformedNewLocation != address)
{
address = transformedNewLocation;
// Clear responseHeaders before next iteration
responseHeaders.delete (0, responseHeaders.length());
continue;
}
}
}
return httpStream;
}
catch (Throwable e)
{
connection.disconnect();
}
}
}
}
catch (Throwable e) {}
catch (Throwable e) {}
return null;
return null;
}
}
public final void launchURL (String url)