Add support for opening bitcoin: URIs directly.

7 files changed, 171 insertions, 0 deletions

diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 894bbb9d1e..85ece9e2ce 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -8,6 +8,7 @@
 
 #include "headers.h"
 #include "init.h"
+#include "qtipcserver.h"
 
 #include <QApplication>
 #include <QMessageBox>
@@ -18,6 +19,8 @@
 #include <QSplashScreen>
 #include <QLibraryInfo>
 
+#include <boost/interprocess/ipc/message_queue.hpp>
+
 // Need a global reference for the notifications to find the GUI
 BitcoinGUI *guiref;
 QSplashScreen *splashref;
@@ -79,6 +82,22 @@ bool ThreadSafeAskFee(int64 nFeeRequired, const std::string& strCaption, wxWindo
     return payFee;
 }
 
+void ThreadSafeHandleURL(const std::string& strURL)
+{
+    if(!guiref)
+        return;
+
+    // Call slot on GUI thread.
+    // If called from another thread, use a blocking QueuedConnection.
+    Qt::ConnectionType connectionType = Qt::DirectConnection;
+    if(QThread::currentThread() != QCoreApplication::instance()->thread())
+    {
+        connectionType = Qt::BlockingQueuedConnection;
+    }
+    QMetaObject::invokeMethod(guiref, "handleURL", connectionType,
+                               Q_ARG(QString, QString::fromStdString(strURL)));
+}
+
 void CalledSetStatusBar(const std::string& strText, int nField)
 {
     // Only used for built-in mining, which is disabled, simple ignore
@@ -114,6 +133,25 @@ std::string _(const char* psz)
 
 int main(int argc, char *argv[])
 {
+    // Do this early as we don't want to bother initializing if we are just calling IPC
+    for (int i = 1; i < argc; i++)
+    {
+        if (strlen(argv[i]) > 7 && strncasecmp(argv[i], "bitcoin:", 8) == 0)
+        {
+            const char *strURL = argv[i];
+            try {
+                boost::interprocess::message_queue mq(boost::interprocess::open_only, "BitcoinURL");
+                if(mq.try_send(strURL, strlen(strURL), 0))
+                    exit(0);
+                else
+                    break;
+            }
+            catch (boost::interprocess::interprocess_exception &ex) {
+                break;
+            }
+        }
+    }
+
     // Internal string conversion is all UTF-8
     QTextCodec::setCodecForTr(QTextCodec::codecForName("UTF-8"));
     QTextCodec::setCodecForCStrings(QTextCodec::codecForTr());
@@ -185,6 +223,23 @@ int main(int argc, char *argv[])
                     window.show();
                 }
 
+                // Place this here as guiref has to be defined if we dont want to lose URLs
+                ipcInit();
+                // Check for URL in argv
+                for (int i = 1; i < argc; i++)
+                {
+                    if (strlen(argv[i]) > 7 && strncasecmp(argv[i], "bitcoin:", 8) == 0)
+                    {
+                        const char *strURL = argv[i];
+                        try {
+                            boost::interprocess::message_queue mq(boost::interprocess::open_only, "BitcoinURL");
+                            mq.try_send(strURL, strlen(strURL), 0);
+                        }
+                        catch (boost::interprocess::interprocess_exception &ex) {
+                        }
+                    }
+                }
+
                 app.exec();
 
                 guiref = 0;
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index d4ce8a79e1..c9381a6059 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -671,6 +671,13 @@ void BitcoinGUI::dropEvent(QDropEvent *event)
     event->acceptProposedAction();
 }
 
+void BitcoinGUI::handleURL(QString strURL)
+{
+    gotoSendCoinsPage();
+    QUrl url = QUrl(strURL);
+    sendCoinsPage->handleURL(&url);
+}
+
 void BitcoinGUI::setEncryptionStatus(int status)
 {
     switch(status)
diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h
index a0905e44ad..d54dc9fcd2 100644
--- a/src/qt/bitcoingui.h
+++ b/src/qt/bitcoingui.h
@@ -123,6 +123,7 @@ public slots:
       @param[out] payFee            true to pay the fee, false to not pay the fee
     */
     void askFee(qint64 nFeeRequired, bool *payFee);
+    void handleURL(QString strURL);
 
 private slots:
     /** Switch to overview (home) page */
diff --git a/src/qt/qtipcserver.cpp b/src/qt/qtipcserver.cpp
new file mode 100644
index 0000000000..2ed8b915c5
--- /dev/null
+++ b/src/qt/qtipcserver.cpp
@@ -0,0 +1,95 @@
+// Copyright (c) 2011 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
+#include <boost/algorithm/string.hpp>
+#include <boost/interprocess/ipc/message_queue.hpp>
+#include <boost/tokenizer.hpp>
+#include <boost/date_time/posix_time/posix_time.hpp>
+
+#include "headers.h"
+
+using namespace boost::interprocess;
+using namespace boost::posix_time;
+using namespace boost;
+using namespace std;
+
+void ipcShutdown()
+{
+    message_queue::remove("BitcoinURL");
+}
+
+void ipcThread(void* parg)
+{
+    message_queue* mq = (message_queue*)parg;
+    char strBuf[257];
+    size_t nSize;
+    unsigned int nPriority;
+    loop
+    {
+        ptime d = boost::posix_time::microsec_clock::universal_time() + millisec(100);
+        if(mq->timed_receive(&strBuf, sizeof(strBuf), nSize, nPriority, d))
+        {
+            strBuf[nSize] = '\0';
+            // Convert bitcoin:// URLs to bitcoin: URIs
+            if (strBuf[8] == '/' && strBuf[9] == '/')
+            {
+                for (int i = 8; i < 256; i++)
+                {
+                    strBuf[i] = strBuf[i+2];
+                }
+            }
+            ThreadSafeHandleURL(strBuf);
+            Sleep(1000);
+        }
+        if (fShutdown)
+        {
+            ipcShutdown();
+            break;
+        }
+    }
+    ipcShutdown();
+}
+
+void ipcInit()
+{
+    message_queue* mq;
+    char strBuf[257];
+    size_t nSize;
+    unsigned int nPriority;
+    try {
+        mq = new message_queue(open_or_create, "BitcoinURL", 2, 256);
+
+        // Make sure we don't lose any bitcoin: URIs
+        for (int i = 0; i < 2; i++)
+        {
+            ptime d = boost::posix_time::microsec_clock::universal_time() + millisec(1);
+            if(mq->timed_receive(&strBuf, sizeof(strBuf), nSize, nPriority, d))
+            {
+                strBuf[nSize] = '\0';
+                // Convert bitcoin:// URLs to bitcoin: URIs
+                if (strBuf[8] == '/' && strBuf[9] == '/')
+                {
+                    for (int i = 8; i < 256; i++)
+                    {
+                        strBuf[i] = strBuf[i+2];
+                    }
+                }
+                ThreadSafeHandleURL(strBuf);
+            }
+            else
+                break;
+        }
+
+        // Make sure only one bitcoin instance is listening
+        message_queue::remove("BitcoinURL");
+        mq = new message_queue(open_or_create, "BitcoinURL", 2, 256);
+    }
+    catch (interprocess_exception &ex) {
+        return;
+    }
+    if (!CreateThread(ipcThread, mq))
+    {
+        delete mq;
+    }
+}
diff --git a/src/qt/qtipcserver.h b/src/qt/qtipcserver.h
new file mode 100644
index 0000000000..1de0334afd
--- /dev/null
+++ b/src/qt/qtipcserver.h
@@ -0,0 +1,2 @@
+void ipcInit();
+void ipcShutdown();
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 6d32891172..0d9a604d3b 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -30,6 +30,8 @@ SendCoinsDialog::SendCoinsDialog(QWidget *parent) :
 
     connect(ui->addButton, SIGNAL(clicked()), this, SLOT(addEntry()));
     connect(ui->clearButton, SIGNAL(clicked()), this, SLOT(clear()));
+
+    fNewRecipientAllowed = true;
 }
 
 void SendCoinsDialog::setModel(WalletModel *model)
@@ -92,6 +94,8 @@ void SendCoinsDialog::on_sendButton_clicked()
         formatted.append(tr("<b>%1</b> to %2 (%3)").arg(BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, rcp.amount), Qt::escape(rcp.label), rcp.address));
     }
 
+    fNewRecipientAllowed = false;
+
     QMessageBox::StandardButton retval = QMessageBox::question(this, tr("Confirm send coins"),
                           tr("Are you sure you want to send %1?").arg(formatted.join(tr(" and "))),
           QMessageBox::Yes|QMessageBox::Cancel,
@@ -99,6 +103,7 @@ void SendCoinsDialog::on_sendButton_clicked()
 
     if(retval != QMessageBox::Yes)
     {
+        fNewRecipientAllowed = true;
         return;
     }
 
@@ -106,6 +111,7 @@ void SendCoinsDialog::on_sendButton_clicked()
     if(!ctx.isValid())
     {
         // Unlock wallet was cancelled
+        fNewRecipientAllowed = true;
         return;
     }
 
@@ -152,6 +158,7 @@ void SendCoinsDialog::on_sendButton_clicked()
         accept();
         break;
     }
+    fNewRecipientAllowed = true;
 }
 
 void SendCoinsDialog::clear()
@@ -236,6 +243,9 @@ QWidget *SendCoinsDialog::setupTabChain(QWidget *prev)
 
 void SendCoinsDialog::pasteEntry(const SendCoinsRecipient &rv)
 {
+    if (!fNewRecipientAllowed)
+        return;
+
     SendCoinsEntry *entry = 0;
     // Replace the first entry if it is still unused
     if(ui->entries->count() == 1)
diff --git a/src/qt/sendcoinsdialog.h b/src/qt/sendcoinsdialog.h
index 82910257f0..847ee8b697 100644
--- a/src/qt/sendcoinsdialog.h
+++ b/src/qt/sendcoinsdialog.h
@@ -43,6 +43,7 @@ public slots:
 private:
     Ui::SendCoinsDialog *ui;
     WalletModel *model;
+    bool fNewRecipientAllowed;
 
 private slots:
     void on_sendButton_clicked();