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-rw-r--r--apt-pkg/contrib/proxy.cc86
1 files changed, 86 insertions, 0 deletions
diff --git a/apt-pkg/contrib/proxy.cc b/apt-pkg/contrib/proxy.cc
new file mode 100644
index 000000000..0c753131d
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+++ b/apt-pkg/contrib/proxy.cc
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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ Proxy - Proxy releated functions
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#include<apt-pkg/configuration.h>
+#include<apt-pkg/error.h>
+#include<apt-pkg/fileutl.h>
+#include<apt-pkg/strutl.h>
+
+#include<iostream>
+#include <unistd.h>
+
+#include "proxy.h"
+
+
+// AutoDetectProxy - auto detect proxy /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool AutoDetectProxy(URI &URL)
+{
+ // we support both http/https debug options
+ bool Debug = _config->FindB("Debug::Acquire::"+URL.Access,false);
+
+ // the user already explicitly set a proxy for this host
+ if(_config->Find("Acquire::"+URL.Access+"::proxy::"+URL.Host, "") != "")
+ return true;
+
+ // option is "Acquire::http::Proxy-Auto-Detect" but we allow the old
+ // name without the dash ("-")
+ std::string AutoDetectProxyCmd = _config->Find("Acquire::"+URL.Access+"::Proxy-Auto-Detect",
+ _config->Find("Acquire::"+URL.Access+"::ProxyAutoDetect"));
+
+ if (AutoDetectProxyCmd.empty())
+ return true;
+
+ if (Debug)
+ std::clog << "Using auto proxy detect command: " << AutoDetectProxyCmd << std::endl;
+
+ int Pipes[2] = {-1,-1};
+ if (pipe(Pipes) != 0)
+ return _error->Errno("pipe", "Failed to create Pipe");
+
+ pid_t Process = ExecFork();
+ if (Process == 0)
+ {
+ close(Pipes[0]);
+ dup2(Pipes[1],STDOUT_FILENO);
+ SetCloseExec(STDOUT_FILENO,false);
+
+ std::string foo = URL;
+ const char *Args[4];
+ Args[0] = AutoDetectProxyCmd.c_str();
+ Args[1] = foo.c_str();
+ Args[2] = 0;
+ execv(Args[0],(char **)Args);
+ std::cerr << "Failed to exec method " << Args[0] << std::endl;
+ _exit(100);
+ }
+ char buf[512];
+ int InFd = Pipes[0];
+ close(Pipes[1]);
+ int res = read(InFd, buf, sizeof(buf)-1);
+ ExecWait(Process, "ProxyAutoDetect", true);
+
+ if (res < 0)
+ return _error->Errno("read", "Failed to read");
+ if (res == 0)
+ return _error->Warning("ProxyAutoDetect returned no data");
+
+ // add trailing \0
+ buf[res] = 0;
+
+ if (Debug)
+ std::clog << "auto detect command returned: '" << buf << "'" << std::endl;
+
+ if (strstr(buf, URL.Access.c_str()) == buf)
+ _config->Set("Acquire::"+URL.Access+"::proxy::"+URL.Host, _strstrip(buf));
+
+ return true;
+}
+ /*}}}*/