smartmirror.patch

diff --git a/apt-pkg/acquire-worker.cc b/apt-pkg/acquire-worker.cc
index f901847..309b752 100644
--- a/apt-pkg/acquire-worker.cc
+++ b/apt-pkg/acquire-worker.cc
@@ -38,6 +38,7 @@
 
 #include <apti18n.h>
 									/*}}}*/
+#include "smartmirrors.h"
 
 using namespace std;
 
@@ -604,6 +605,7 @@ bool pkgAcquire::Worker::QueueItem(pkgAcquire::Queue::QItem *Item)
    if (OutFd == -1)
       return false;
 
+   Item->URI = SmartMirrors::GuestURI(Item->URI);
    string Message = "600 URI Acquire\n";
    Message.reserve(300);
    Message += "URI: " + Item->URI;
diff --git a/apt-pkg/smartmirrors.cc b/apt-pkg/smartmirrors.cc
new file mode 100644
index 0000000..90e3a88
--- /dev/null
+++ b/apt-pkg/smartmirrors.cc
@@ -0,0 +1,75 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   Smart Mirrors - Get Archive File by Smart Mirrors Server.
+
+   ##################################################################### */
+/*}}}*/
+// Include Files							/*{{{*/
+
+
+#include <apt-pkg/acquire-item.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/aptconfiguration.h>
+
+#include <tr1/memory>
+#include "smartmirrors.h"
+
+using namespace std;
+
+namespace SmartMirrors {
+        static string
+        normalizeURI(const string& uri)
+        {
+                if (uri.length() >=1 && uri.at(uri.length()-1) == '/') {
+                        return uri.substr(0, uri.length()-1);
+                }
+                return uri;
+        }
+
+        const std::string
+        GuestURI(const std::string& uri)
+        {
+                if(uri.substr(0, strlen("http")) != "http") {
+                        return uri;
+                }
+                static bool debug = _config->FindB("Acquire::SmartMirrors::Debug");
+                static bool enabled =  _config->FindB("Acquire::SmartMirrors::Enable");
+                if (!enabled) {
+                        if (debug) {
+                                std::clog << "SmartMirrors is disabled." << std::endl;
+                        }
+                        return uri;
+                }
+                static string official = normalizeURI(_config->Find("Acquire::SmartMirrors::MainSource"));
+                static string mirror = normalizeURI(_config->Find("Acquire::SmartMirrors::MirrorSource"));
+
+                static string detector = _config->Find("Acquire::SmartMirrors::GuestURI");
+                static bool exists = FileExists(detector);
+                if (!exists) {
+                        return uri;
+                }
+
+                string cmd = detector + " " + uri + " " + official + " " + mirror;
+                std::tr1::shared_ptr<FILE> out(popen(cmd.c_str(), "r"), pclose);
+                if (!out) {
+                        return uri;
+                }
+
+                char buffer[1024] = {0};
+                std::string result = "";
+                while (!feof(out.get())) {
+                        if (fgets(buffer, 1024, out.get()) != NULL)
+                                result += buffer;
+                }
+                if(result.substr(0, strlen("http")) != "http") {
+                        return uri;
+                }
+
+                if (debug && result != uri) {
+                        printf("Using '%s' instead of '%s'\n", result.c_str(), uri.c_str());
+                }
+                return result;
+        }
+}
diff --git a/apt-pkg/smartmirrors.h b/apt-pkg/smartmirrors.h
new file mode 100644
index 0000000..e2fe5fd
--- /dev/null
+++ b/apt-pkg/smartmirrors.h
@@ -0,0 +1,8 @@
+#include <config.h>
+
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/indexfile.h>
+
+namespace SmartMirrors {
+  const std::string GuestURI(const std::string& uri);
+};