1 files changed, 389 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/command_line.cc b/ipc/chromium/src/base/command_line.cc
new file mode 100644
index 0000000000..3118dcbe7b
--- /dev/null
+++ b/ipc/chromium/src/base/command_line.cc
@@ -0,0 +1,389 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2006-2008 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 "base/command_line.h"
+
+#if defined(OS_WIN)
+#  include <windows.h>
+#  include <shellapi.h>
+#  include "mozilla/DynamicallyLinkedFunctionPtr.h"
+#endif
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "base/string_piece.h"
+#include "base/string_util.h"
+#include "base/sys_string_conversions.h"
+
+CommandLine* CommandLine::current_process_commandline_ = NULL;
+
+// Since we use a lazy match, make sure that longer versions (like L"--")
+// are listed before shorter versions (like L"-") of similar prefixes.
+#if defined(OS_WIN)
+const wchar_t* const kSwitchPrefixes[] = {L"--", L"-", L"/"};
+const wchar_t kSwitchTerminator[] = L"--";
+const wchar_t kSwitchValueSeparator[] = L"=";
+#elif defined(OS_POSIX)
+// Unixes don't use slash as a switch.
+const char* const kSwitchPrefixes[] = {"--", "-"};
+const char kSwitchTerminator[] = "--";
+const char kSwitchValueSeparator[] = "=";
+#endif
+
+#if defined(OS_WIN)
+// Lowercase a string.  This is used to lowercase switch names.
+// Is this what we really want?  It seems crazy to me.  I've left it in
+// for backwards compatibility on Windows.
+static void Lowercase(std::wstring* parameter) {
+  transform(parameter->begin(), parameter->end(), parameter->begin(), tolower);
+}
+#endif
+
+#if defined(OS_WIN)
+void CommandLine::ParseFromString(const std::wstring& command_line) {
+  TrimWhitespace(command_line, TRIM_ALL, &command_line_string_);
+
+  if (command_line_string_.empty()) return;
+
+  int num_args = 0;
+  wchar_t** args = NULL;
+  // When calling CommandLineToArgvW, use the API set if available.
+  // Doing so will bypass loading shell32.dll on Win8+.
+  mozilla::DynamicallyLinkedFunctionPtr<decltype(&::CommandLineToArgvW)>
+      pCommandLineToArgvW(L"api-ms-win-downlevel-shell32-l1-1-0.dll",
+                          "CommandLineToArgvW");
+  if (pCommandLineToArgvW) {
+    args = pCommandLineToArgvW(command_line_string_.c_str(), &num_args);
+  } else {
+    args = CommandLineToArgvW(command_line_string_.c_str(), &num_args);
+  }
+
+  // Populate program_ with the trimmed version of the first arg.
+  TrimWhitespace(args[0], TRIM_ALL, &program_);
+
+  bool parse_switches = true;
+  for (int i = 1; i < num_args; ++i) {
+    std::wstring arg;
+    TrimWhitespace(args[i], TRIM_ALL, &arg);
+
+    if (!parse_switches) {
+      loose_values_.push_back(arg);
+      continue;
+    }
+
+    if (arg == kSwitchTerminator) {
+      parse_switches = false;
+      continue;
+    }
+
+    std::string switch_string;
+    std::wstring switch_value;
+    if (IsSwitch(arg, &switch_string, &switch_value)) {
+      switches_[switch_string] = switch_value;
+    } else {
+      loose_values_.push_back(arg);
+    }
+  }
+
+  if (args) LocalFree(args);
+}
+CommandLine::CommandLine(const std::wstring& program) {
+  if (!program.empty()) {
+    program_ = program;
+    command_line_string_ = L'"' + program + L'"';
+  }
+}
+#elif defined(OS_POSIX)
+CommandLine::CommandLine(int argc, const char* const* argv) {
+  for (int i = 0; i < argc; ++i) argv_.push_back(argv[i]);
+  InitFromArgv();
+}
+CommandLine::CommandLine(const std::vector<std::string>& argv) {
+  argv_ = argv;
+  InitFromArgv();
+}
+
+void CommandLine::InitFromArgv() {
+  bool parse_switches = true;
+  for (size_t i = 1; i < argv_.size(); ++i) {
+    const std::string& arg = argv_[i];
+
+    if (!parse_switches) {
+      loose_values_.push_back(arg);
+      continue;
+    }
+
+    if (arg == kSwitchTerminator) {
+      parse_switches = false;
+      continue;
+    }
+
+    std::string switch_string;
+    std::string switch_value;
+    if (IsSwitch(arg, &switch_string, &switch_value)) {
+      switches_[switch_string] = switch_value;
+    } else {
+      loose_values_.push_back(arg);
+    }
+  }
+}
+
+CommandLine::CommandLine(const std::wstring& program) {
+  argv_.push_back(WideToASCII(program));
+}
+#endif
+
+// static
+bool CommandLine::IsSwitch(const StringType& parameter_string,
+                           std::string* switch_string,
+                           StringType* switch_value) {
+  switch_string->clear();
+  switch_value->clear();
+
+  for (size_t i = 0; i < arraysize(kSwitchPrefixes); ++i) {
+    StringType prefix(kSwitchPrefixes[i]);
+    if (parameter_string.find(prefix) != 0) continue;
+
+    const size_t switch_start = prefix.length();
+    const size_t equals_position =
+        parameter_string.find(kSwitchValueSeparator, switch_start);
+    StringType switch_native;
+    if (equals_position == StringType::npos) {
+      switch_native = parameter_string.substr(switch_start);
+    } else {
+      switch_native =
+          parameter_string.substr(switch_start, equals_position - switch_start);
+      *switch_value = parameter_string.substr(equals_position + 1);
+    }
+#if defined(OS_WIN)
+    Lowercase(&switch_native);
+    *switch_string = WideToASCII(switch_native);
+#else
+    *switch_string = switch_native;
+#endif
+
+    return true;
+  }
+
+  return false;
+}
+
+// static
+void CommandLine::Init(int argc, const char* const* argv) {
+  DCHECK(current_process_commandline_ == NULL);
+#if defined(OS_WIN)
+  current_process_commandline_ = new CommandLine;
+  current_process_commandline_->ParseFromString(::GetCommandLineW());
+#elif defined(OS_POSIX)
+  current_process_commandline_ = new CommandLine(argc, argv);
+#endif
+}
+
+void CommandLine::Terminate() {
+  DCHECK(current_process_commandline_ != NULL);
+  delete current_process_commandline_;
+  current_process_commandline_ = NULL;
+}
+
+bool CommandLine::HasSwitch(const std::wstring& switch_string) const {
+  std::wstring lowercased_switch(switch_string);
+#if defined(OS_WIN)
+  Lowercase(&lowercased_switch);
+#endif
+  return switches_.find(WideToASCII(lowercased_switch)) != switches_.end();
+}
+
+std::wstring CommandLine::GetSwitchValue(
+    const std::wstring& switch_string) const {
+  std::wstring lowercased_switch(switch_string);
+#if defined(OS_WIN)
+  Lowercase(&lowercased_switch);
+#endif
+
+  std::map<std::string, StringType>::const_iterator result =
+      switches_.find(WideToASCII(lowercased_switch));
+
+  if (result == switches_.end()) {
+    return L"";
+  } else {
+#if defined(OS_WIN)
+    return result->second;
+#else
+    return ASCIIToWide(result->second);
+#endif
+  }
+}
+
+#if defined(OS_WIN)
+std::vector<std::wstring> CommandLine::GetLooseValues() const {
+  return loose_values_;
+}
+std::wstring CommandLine::program() const { return program_; }
+#else
+std::vector<std::wstring> CommandLine::GetLooseValues() const {
+  std::vector<std::wstring> values;
+  for (size_t i = 0; i < loose_values_.size(); ++i)
+    values.push_back(ASCIIToWide(loose_values_[i]));
+  return values;
+}
+std::wstring CommandLine::program() const {
+  DCHECK(argv_.size() > 0);
+  return ASCIIToWide(argv_[0]);
+}
+#endif
+
+// static
+std::wstring CommandLine::PrefixedSwitchString(
+    const std::wstring& switch_string) {
+  return StringPrintf(L"%ls%ls", kSwitchPrefixes[0], switch_string.c_str());
+}
+
+// static
+std::wstring CommandLine::PrefixedSwitchStringWithValue(
+    const std::wstring& switch_string, const std::wstring& value_string) {
+  if (value_string.empty()) {
+    return PrefixedSwitchString(switch_string);
+  }
+
+  return StringPrintf(L"%ls%ls%ls%ls", kSwitchPrefixes[0],
+                      switch_string.c_str(), kSwitchValueSeparator,
+                      value_string.c_str());
+}
+
+#if defined(OS_WIN)
+void CommandLine::AppendSwitch(const std::wstring& switch_string) {
+  std::wstring prefixed_switch_string = PrefixedSwitchString(switch_string);
+  command_line_string_.append(L" ");
+  command_line_string_.append(prefixed_switch_string);
+  switches_[WideToASCII(switch_string)] = L"";
+}
+
+// Quote a string if necessary, such that CommandLineToArgvW() will
+// always process it as a single argument.
+static std::wstring WindowsStyleQuote(const std::wstring& arg) {
+  // We follow the quoting rules of CommandLineToArgvW.
+  // http://msdn.microsoft.com/en-us/library/17w5ykft.aspx
+  if (arg.find_first_of(L" \\\"\t") == std::wstring::npos) {
+    // No quoting necessary.
+    return arg;
+  }
+
+  std::wstring out;
+  out.push_back(L'"');
+  for (size_t i = 0; i < arg.size(); ++i) {
+    if (arg[i] == '\\') {
+      // Find the extent of this run of backslashes.
+      size_t start = i, end = start + 1;
+      for (; end < arg.size() && arg[end] == '\\'; ++end) /* empty */
+        ;
+      size_t backslash_count = end - start;
+
+      // Backslashes are escapes only if the run is followed by a double quote.
+      // Since we also will end the string with a double quote, we escape for
+      // either a double quote or the end of the string.
+      if (end == arg.size() || arg[end] == '"') {
+        // To quote, we need to output 2x as many backslashes.
+        backslash_count *= 2;
+      }
+      for (size_t j = 0; j < backslash_count; ++j) out.push_back('\\');
+
+      // Advance i to one before the end to balance i++ in loop.
+      i = end - 1;
+    } else if (arg[i] == '"') {
+      out.push_back('\\');
+      out.push_back('"');
+    } else {
+      out.push_back(arg[i]);
+    }
+  }
+  out.push_back('"');
+
+  return out;
+}
+
+void CommandLine::AppendSwitchWithValue(const std::wstring& switch_string,
+                                        const std::wstring& value_string) {
+  std::wstring quoted_value_string = WindowsStyleQuote(value_string);
+  std::wstring combined_switch_string =
+      PrefixedSwitchStringWithValue(switch_string, quoted_value_string);
+
+  command_line_string_.append(L" ");
+  command_line_string_.append(combined_switch_string);
+
+  switches_[WideToASCII(switch_string)] = value_string;
+}
+
+void CommandLine::AppendLooseValue(const std::wstring& value) {
+  command_line_string_.append(L" ");
+  command_line_string_.append(WindowsStyleQuote(value));
+}
+
+void CommandLine::AppendArguments(const CommandLine& other,
+                                  bool include_program) {
+  // Verify include_program is used correctly.
+  // Logic could be shorter but this is clearer.
+  DCHECK(include_program ? !other.program().empty() : other.program().empty());
+  command_line_string_ += L" " + other.command_line_string_;
+  std::map<std::string, StringType>::const_iterator i;
+  for (i = other.switches_.begin(); i != other.switches_.end(); ++i)
+    switches_[i->first] = i->second;
+}
+
+void CommandLine::PrependWrapper(const std::wstring& wrapper) {
+  // The wrapper may have embedded arguments (like "gdb --args"). In this case,
+  // we don't pretend to do anything fancy, we just split on spaces.
+  std::vector<std::wstring> wrapper_and_args;
+  SplitString(wrapper, ' ', &wrapper_and_args);
+  program_ = wrapper_and_args[0];
+  command_line_string_ = wrapper + L" " + command_line_string_;
+}
+
+#elif defined(OS_POSIX)
+void CommandLine::AppendSwitch(const std::wstring& switch_string) {
+  std::string ascii_switch = WideToASCII(switch_string);
+  argv_.push_back(kSwitchPrefixes[0] + ascii_switch);
+  switches_[ascii_switch] = "";
+}
+
+void CommandLine::AppendSwitchWithValue(const std::wstring& switch_string,
+                                        const std::wstring& value_string) {
+  std::string ascii_switch = WideToASCII(switch_string);
+  std::string ascii_value = WideToASCII(value_string);
+
+  argv_.push_back(kSwitchPrefixes[0] + ascii_switch + kSwitchValueSeparator +
+                  ascii_value);
+  switches_[ascii_switch] = ascii_value;
+}
+
+void CommandLine::AppendLooseValue(const std::wstring& value) {
+  argv_.push_back(WideToASCII(value));
+}
+
+void CommandLine::AppendArguments(const CommandLine& other,
+                                  bool include_program) {
+  // Verify include_program is used correctly.
+  // Logic could be shorter but this is clearer.
+  DCHECK(include_program ? !other.program().empty() : other.program().empty());
+
+  size_t first_arg = include_program ? 0 : 1;
+  for (size_t i = first_arg; i < other.argv_.size(); ++i)
+    argv_.push_back(other.argv_[i]);
+  std::map<std::string, StringType>::const_iterator i;
+  for (i = other.switches_.begin(); i != other.switches_.end(); ++i)
+    switches_[i->first] = i->second;
+}
+
+void CommandLine::PrependWrapper(const std::wstring& wrapper_wide) {
+  // The wrapper may have embedded arguments (like "gdb --args"). In this case,
+  // we don't pretend to do anything fancy, we just split on spaces.
+  const std::string wrapper = WideToASCII(wrapper_wide);
+  std::vector<std::string> wrapper_and_args;
+  SplitString(wrapper, ' ', &wrapper_and_args);
+  argv_.insert(argv_.begin(), wrapper_and_args.begin(), wrapper_and_args.end());
+}
+
+#endif