Unit tests for HttpAuthHandlerNegotiate

net/base/mock_host_resolver.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/base/mock_host_resolver.h"
 
 #include "base/string_util.h"
 #include "base/platform_thread.h"
 #include "base/ref_counted.h"
 #include "googleurl/src/url_canon_ip.h"
 #include "net/base/net_errors.h"
 
 namespace net {
 
 namespace {
-// Fills |addrlist| with a socket address for |host| which should be an
-// IPv6 literal. Returns OK on success.
-int ResolveIPV6LiteralUsingGURL(const std::string& host,
-                                AddressList* addrlist) {
+
+// Fills |*addrlist| with a socket address for |host| which should be an
+// IPv6 literal without enclosing brackets. If |canonical_name| is non-empty
+// it is used as the DNS canonical name for the host. Returns OK on success,
+// ERR_UNEXPECTED otherwise.
+int CreateIPv6Address(const std::string& host,
+                      const std::string& canonical_name,
+                      AddressList* addrlist) {
   // GURL expects the hostname to be surrounded with brackets.
   std::string host_brackets = "[" + host + "]";
   url_parse::Component host_comp(0, host_brackets.size());
 
   // Try parsing the hostname as an IPv6 literal.
   unsigned char ipv6_addr[16];  // 128 bits.
   bool ok = url_canon::IPv6AddressToNumber(host_brackets.data(),
                                            host_comp,
                                            ipv6_addr);
   if (!ok) {
     LOG(WARNING) << "Not an IPv6 literal: " << host;
     return ERR_UNEXPECTED;
   }
 
-  *addrlist = AddressList::CreateIPv6Address(ipv6_addr);
+  *addrlist = AddressList::CreateIPv6Address(ipv6_addr, canonical_name);
   return OK;
 }
 
+// Fills |*addrlist| with a socket address for |host| which should be an
+// IPv4 literal. If |canonical_name| is non-empty it is used as the DNS
+// canonical name for the host. Returns OK on success, ERR_UNEXPECTED otherwise.
+int CreateIPv4Address(const std::string& host,
+                      const std::string& canonical_name,
+                      AddressList* addrlist) {
+  unsigned char ipv4_addr[4];
+  url_parse::Component host_comp(0, host.size());
+  int num_components;
+  url_canon::CanonHostInfo::Family family = url_canon::IPv4AddressToNumber(
+      host.data(), host_comp, ipv4_addr, &num_components);
+  if (family != url_canon::CanonHostInfo::IPV4) {
+    LOG(WARNING) << "Not an IPv4 literal: " << host;
+    return ERR_UNEXPECTED;
+  }
+  *addrlist = AddressList::CreateIPv4Address(ipv4_addr, canonical_name);
+  return OK;
+}
+
 }  // namespace
 
 MockHostResolverBase::MockHostResolverBase(bool use_caching)
     : use_caching_(use_caching) {
   Reset(NULL);
 }
 
 int MockHostResolverBase::Resolve(const RequestInfo& info,
                                   AddressList* addresses,
                                   CompletionCallback* callback,
@@ skipping 49 matching lines @@
   impl_ = new HostResolverImpl(proc, cache, NULL, 50u);
 }
 
 //-----------------------------------------------------------------------------
 
 struct RuleBasedHostResolverProc::Rule {
   enum ResolverType {
     kResolverTypeFail,
     kResolverTypeSystem,
     kResolverTypeIPV6Literal,
+    kResolverTypeIPV4Literal,
   };
 
   ResolverType resolver_type;
   std::string host_pattern;
   AddressFamily address_family;
+  HostResolverFlags host_resolver_flags;
   std::string replacement;
+  std::string canonical_name;
   int latency_ms;  // In milliseconds.
 
   Rule(ResolverType resolver_type,
        const std::string& host_pattern,
        AddressFamily address_family,
+       HostResolverFlags host_resolver_flags,
        const std::string& replacement,
+       const std::string& canonical_name,
        int latency_ms)
       : resolver_type(resolver_type),
         host_pattern(host_pattern),
         address_family(address_family),
+        host_resolver_flags(host_resolver_flags),
         replacement(replacement),
+        canonical_name(canonical_name),
         latency_ms(latency_ms) {}
 };
 
 RuleBasedHostResolverProc::RuleBasedHostResolverProc(HostResolverProc* previous)
     : HostResolverProc(previous) {
 }
 
 RuleBasedHostResolverProc::~RuleBasedHostResolverProc() {
 }
 
 void RuleBasedHostResolverProc::AddRule(const std::string& host_pattern,
                                         const std::string& replacement) {
   AddRuleForAddressFamily(host_pattern, ADDRESS_FAMILY_UNSPECIFIED,
                           replacement);
 }
 
 void RuleBasedHostResolverProc::AddRuleForAddressFamily(
     const std::string& host_pattern,
     AddressFamily address_family,
     const std::string& replacement) {
   DCHECK(!replacement.empty());
   Rule rule(Rule::kResolverTypeSystem, host_pattern,
-            address_family, replacement, 0);
+            address_family, 0, replacement, "", 0);
+  rules_.push_back(rule);
+}
+
+void RuleBasedHostResolverProc::AddIPv4Rule(const std::string& host_pattern,
+                                            const std::string& ipv4_literal,
+                                            const std::string& canonical_name) {
+  Rule rule(Rule::kResolverTypeIPV4Literal,
+            host_pattern,
+            ADDRESS_FAMILY_UNSPECIFIED,
+            canonical_name.empty() ? 0 : HOST_RESOLVER_CANONNAME,
+            ipv4_literal,
+            canonical_name,
+            0);
   rules_.push_back(rule);
 }
 
 void RuleBasedHostResolverProc::AddIPv6Rule(const std::string& host_pattern,
-                                            const std::string& ipv6_literal) {
+                                            const std::string& ipv6_literal,
+                                            const std::string& canonical_name) {
   Rule rule(Rule::kResolverTypeIPV6Literal,
             host_pattern,
             ADDRESS_FAMILY_UNSPECIFIED,
+            canonical_name.empty() ? 0 : HOST_RESOLVER_CANONNAME,
             ipv6_literal,
+            canonical_name,
             0);
   rules_.push_back(rule);
 }
 
 void RuleBasedHostResolverProc::AddRuleWithLatency(
     const std::string& host_pattern,
     const std::string& replacement,
     int latency_ms) {
   DCHECK(!replacement.empty());
   Rule rule(Rule::kResolverTypeSystem, host_pattern,
-            ADDRESS_FAMILY_UNSPECIFIED, replacement, latency_ms);
+            ADDRESS_FAMILY_UNSPECIFIED, 0, replacement, "", latency_ms);
   rules_.push_back(rule);
 }
 
 void RuleBasedHostResolverProc::AllowDirectLookup(
     const std::string& host_pattern) {
   Rule rule(Rule::kResolverTypeSystem, host_pattern,
-            ADDRESS_FAMILY_UNSPECIFIED, "", 0);
+            ADDRESS_FAMILY_UNSPECIFIED, 0, "", "", 0);
   rules_.push_back(rule);
 }
 
 void RuleBasedHostResolverProc::AddSimulatedFailure(
     const std::string& host_pattern) {
   Rule rule(Rule::kResolverTypeFail, host_pattern,
-            ADDRESS_FAMILY_UNSPECIFIED, "", 0);
+            ADDRESS_FAMILY_UNSPECIFIED, 0, "", "", 0);
   rules_.push_back(rule);
 }
 
 int RuleBasedHostResolverProc::Resolve(const std::string& host,
                                        AddressFamily address_family,
                                        HostResolverFlags host_resolver_flags,
                                        AddressList* addrlist) {
   RuleList::iterator r;
   for (r = rules_.begin(); r != rules_.end(); ++r) {
     bool matches_address_family =
         r->address_family == ADDRESS_FAMILY_UNSPECIFIED ||
         r->address_family == address_family;
-
-    if (matches_address_family && MatchPatternASCII(host, r->host_pattern)) {
+    // Flags match if all of the bitflags in host_resolver_flags are enabled
+    // in the rule's host_resolver_flags. However, the rule may have additional
+    // flags specified, in which case the flags should still be considered a
+    // match.
+    bool matches_flags = (r->host_resolver_flags & host_resolver_flags) ==
+        host_resolver_flags;
+    if (matches_flags && matches_address_family &&
+        MatchPatternASCII(host, r->host_pattern)) {
       if (r->latency_ms != 0)
         PlatformThread::Sleep(r->latency_ms);
 
       // Remap to a new host.
       const std::string& effective_host =
           r->replacement.empty() ? host : r->replacement;
 
       // Apply the resolving function to the remapped hostname.
       switch (r->resolver_type) {
         case Rule::kResolverTypeFail:
           return ERR_NAME_NOT_RESOLVED;
         case Rule::kResolverTypeSystem:
           return SystemHostResolverProc(effective_host,
                                         address_family,
                                         host_resolver_flags,
                                         addrlist);
         case Rule::kResolverTypeIPV6Literal:
-          return ResolveIPV6LiteralUsingGURL(effective_host, addrlist);
+          return CreateIPv6Address(effective_host, r->canonical_name, addrlist);
+        case Rule::kResolverTypeIPV4Literal:
+          return CreateIPv4Address(effective_host, r->canonical_name, addrlist);
         default:
           NOTREACHED();
           return ERR_UNEXPECTED;
       }
     }
   }
   return ResolveUsingPrevious(host, address_family,
                               host_resolver_flags, addrlist);
 }
 
@@ skipping 10 matching lines @@
   CHECK_EQ(old_proc, current_proc_);
 }
 
 void ScopedDefaultHostResolverProc::Init(HostResolverProc* proc) {
   current_proc_ = proc;
   previous_proc_ = HostResolverProc::SetDefault(current_proc_);
   current_proc_->SetLastProc(previous_proc_);
 }
 
 }  // namespace net