src/acl/StringData.cc

   1 /*
   2  * Copyright (C) 1996-2014 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 28    Access Control */
  10
  11 #include "squid.h"
  12 #include "acl/Checklist.h"
  13 #include "acl/StringData.h"
  14 #include "cache_cf.h"
  15 #include "Debug.h"
  16
  17 ACLStringData::ACLStringData() : values (NULL)
  18 {}
  19
  20 ACLStringData::ACLStringData(ACLStringData const &old) : values (NULL)
  21 {
  22     assert (!old.values);
  23 }
  24
  25 template<class T>
  26 inline void
  27 xRefFree(T &thing)
  28 {
  29     xfree (thing);
  30 }
  31
  32 ACLStringData::~ACLStringData()
  33 {
  34     if (values) {
  35         values->destroy(xRefFree);
  36         delete values;
  37     }
  38 }
  39
  40 static int
  41 splaystrcmp (char * const &l, char * const &r)
  42 {
  43     return strcmp (l,r);
  44 }
  45
  46 void
  47 ACLStringData::insert(const char *value)
  48 {
  49     values->insert(xstrdup(value), splaystrcmp);
  50 }
  51
  52 bool
  53 ACLStringData::match(char const *toFind)
  54 {
  55     if (!values || !toFind)
  56         return 0;
  57
  58     debugs(28, 3, "aclMatchStringList: checking '" << toFind << "'");
  59
  60     char * const * result = values->find(const_cast<char *>(toFind), splaystrcmp);
  61
  62     debugs(28, 3, "aclMatchStringList: '" << toFind << "' " << (result ? "found" : "NOT found"));
  63
  64     return (result != NULL);
  65 }
  66
  67 // visitor functor to collect the contents of the Arp Acl
  68 struct StringDataAclDumpVisitor {
  69     SBufList contents;
  70     void operator() (char * const& node_data) {
  71         contents.push_back(SBuf(node_data));
  72     }
  73 };
  74
  75 SBufList
  76 ACLStringData::dump() const
  77 {
  78     StringDataAclDumpVisitor visitor;
  79     values->visit(visitor);
  80     return visitor.contents;
  81 }
  82
  83 void
  84 ACLStringData::parse()
  85 {
  86     char *t;
  87
  88     while ((t = strtokFile()))
  89         values->insert(xstrdup(t), splaystrcmp);
  90 }
  91
  92 bool
  93 ACLStringData::empty() const
  94 {
  95     return values->empty();
  96 }
  97
  98 ACLData<char const *> *
  99 ACLStringData::clone() const
 100 {
 101     /* Splay trees don't clone yet. */
 102     assert (!values);
 103     return new ACLStringData(*this);
 104 }
 105