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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsURLParsers_h__
#define nsURLParsers_h__

#include "nsIURLParser.h"
#include "mozilla/Attributes.h"

//----------------------------------------------------------------------------
// base class for url parsers
//----------------------------------------------------------------------------

class nsBaseURLParser : public nsIURLParser {
 public:
  NS_DECL_NSIURLPARSER

  nsBaseURLParser() = default;

 protected:
  // implemented by subclasses
  virtual void ParseAfterScheme(const char* spec, int32_t specLen,
                                uint32_t* authPos, int32_t* authLen,
                                uint32_t* pathPos, int32_t* pathLen) = 0;
};

//----------------------------------------------------------------------------
// an url parser for urls that do not have an authority section
//
// eg. file:foo/bar.txt
//     file:/foo/bar.txt      (treated equivalently)
//     file:///foo/bar.txt
//
// eg. file:////foo/bar.txt   (UNC-filepath = \\foo\bar.txt)
//
// XXX except in this case:
//     file://foo/bar.txt     (the authority "foo"  is ignored)
//----------------------------------------------------------------------------

class nsNoAuthURLParser final : public nsBaseURLParser {
  ~nsNoAuthURLParser() = default;

 public:
  NS_DECL_THREADSAFE_ISUPPORTS

#if defined(XP_WIN)
  NS_IMETHOD ParseFilePath(const char*, int32_t, uint32_t*, int32_t*, uint32_t*,
                           int32_t*, uint32_t*, int32_t*) override;
#endif

  NS_IMETHOD ParseAuthority(const char* auth, int32_t authLen,
                            uint32_t* usernamePos, int32_t* usernameLen,
                            uint32_t* passwordPos, int32_t* passwordLen,
                            uint32_t* hostnamePos, int32_t* hostnameLen,
                            int32_t* port) override;

  void ParseAfterScheme(const char* spec, int32_t specLen, uint32_t* authPos,
                        int32_t* authLen, uint32_t* pathPos,
                        int32_t* pathLen) override;
};

//----------------------------------------------------------------------------
// an url parser for urls that must have an authority section
//
// eg. http:www.foo.com/bar.html
//     http:/www.foo.com/bar.html
//     http://www.foo.com/bar.html    (treated equivalently)
//     http:///www.foo.com/bar.html
//----------------------------------------------------------------------------

class nsAuthURLParser : public nsBaseURLParser {
 protected:
  virtual ~nsAuthURLParser() = default;

 public:
  NS_DECL_THREADSAFE_ISUPPORTS

  NS_IMETHOD ParseAuthority(const char* auth, int32_t authLen,
                            uint32_t* usernamePos, int32_t* usernameLen,
                            uint32_t* passwordPos, int32_t* passwordLen,
                            uint32_t* hostnamePos, int32_t* hostnameLen,
                            int32_t* port) override;

  NS_IMETHOD ParseUserInfo(const char* userinfo, int32_t userinfoLen,
                           uint32_t* usernamePos, int32_t* usernameLen,
                           uint32_t* passwordPos,
                           int32_t* passwordLen) override;

  NS_IMETHOD ParseServerInfo(const char* serverinfo, int32_t serverinfoLen,
                             uint32_t* hostnamePos, int32_t* hostnameLen,
                             int32_t* port) override;

  void ParseAfterScheme(const char* spec, int32_t specLen, uint32_t* authPos,
                        int32_t* authLen, uint32_t* pathPos,
                        int32_t* pathLen) override;
};

//----------------------------------------------------------------------------
// an url parser for urls that may or may not have an authority section
//
// eg. http:www.foo.com              (www.foo.com is authority)
//     http:www.foo.com/bar.html     (www.foo.com is authority)
//     http:/www.foo.com/bar.html    (www.foo.com is part of file path)
//     http://www.foo.com/bar.html   (www.foo.com is authority)
//     http:///www.foo.com/bar.html  (www.foo.com is part of file path)
//----------------------------------------------------------------------------

class nsStdURLParser : public nsAuthURLParser {
  virtual ~nsStdURLParser() = default;

 public:
  void ParseAfterScheme(const char* spec, int32_t specLen, uint32_t* authPos,
                        int32_t* authLen, uint32_t* pathPos,
                        int32_t* pathLen) override;
};

#endif  // nsURLParsers_h__