src/auth/Scheme.cc

   1 /*
   2  * Copyright (C) 1996-2021 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 29    Authenticator */
  10
  11 #include "squid.h"
  12 #include "auth/Gadgets.h"
  13 #include "auth/Scheme.h"
  14 #include "auth/SchemeConfig.h"
  15 #include "globals.h"
  16
  17 std::vector<Auth::Scheme::Pointer> *Auth::Scheme::_Schemes = NULL;
  18
  19 void
  20 Auth::Scheme::AddScheme(Auth::Scheme::Pointer instance)
  21 {
  22     iterator i = GetSchemes().begin();
  23
  24     while (i != GetSchemes().end()) {
  25         assert(strcmp((*i)->type(), instance->type()) != 0);
  26         ++i;
  27     }
  28
  29     GetSchemes().push_back(instance);
  30 }
  31
  32 Auth::Scheme::Pointer
  33 Auth::Scheme::Find(const char *typestr)
  34 {
  35     for (iterator i = GetSchemes().begin(); i != GetSchemes().end(); ++i) {
  36         if (strcmp((*i)->type(), typestr) == 0)
  37             return *i;
  38     }
  39
  40     return Auth::Scheme::Pointer(NULL);
  41 }
  42
  43 std::vector<Auth::Scheme::Pointer> &
  44 Auth::Scheme::GetSchemes()
  45 {
  46     if (!_Schemes)
  47         _Schemes = new std::vector<Auth::Scheme::Pointer>;
  48
  49     return *_Schemes;
  50 }
  51
  52 /**
  53  * Called when a graceful shutdown is to occur of each scheme module.
  54  * On completion the auth components are to be considered deleted.
  55  * None will be available globally. Some may remain around for their
  56  * currently active connections to close, but only those active
  57  * connections will retain pointers to them.
  58  */
  59 void
  60 Auth::Scheme::FreeAll()
  61 {
  62     assert(shutting_down);
  63
  64     while (GetSchemes().size()) {
  65         Auth::Scheme::Pointer scheme = GetSchemes().back();
  66         GetSchemes().pop_back();
  67         scheme->shutdownCleanup();
  68     }
  69 }
  70