blob: 0a25fffaebc5921f6e8001b7a9535f8354a7dd58 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
// 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.
#ifndef NET_FTP_FTP_DIRECTORY_LISTING_BUFFER_H_
#define NET_FTP_FTP_DIRECTORY_LISTING_BUFFER_H_
#pragma once
#include <deque>
#include <set>
#include <string>
#include "base/basictypes.h"
#include "base/string16.h"
#include "base/time.h"
#include "net/ftp/ftp_server_type_histograms.h"
namespace net {
struct FtpDirectoryListingEntry;
class FtpDirectoryListingParser;
class FtpDirectoryListingBuffer {
public:
// Constructor. When the current time is needed to guess the year on partial
// date strings, |current_time| will be used. This allows passing a specific
// date during testing.
explicit FtpDirectoryListingBuffer(const base::Time& current_time);
~FtpDirectoryListingBuffer();
// Called when data is received from the data socket. Returns network
// error code.
int ConsumeData(const char* data, int data_length);
// Called when all received data has been consumed by this buffer. Tells the
// buffer to try to parse remaining raw data and returns network error code.
int ProcessRemainingData();
bool EntryAvailable() const;
// Returns the next entry. It is an error to call this function
// unless EntryAvailable returns true.
FtpDirectoryListingEntry PopEntry();
// Returns recognized server type. It is valid to call this function at any
// time, although it will return SERVER_UNKNOWN if it doesn't know the answer.
FtpServerType GetServerType() const;
const std::string& encoding() const { return encoding_; }
private:
typedef std::set<FtpDirectoryListingParser*> ParserSet;
// Converts the string |from| to detected encoding and stores it in |to|.
// Returns true on success.
bool ConvertToDetectedEncoding(const std::string& from, string16* to);
// Tries to extract full lines from the raw buffer, converting them to the
// detected encoding. Returns network error code.
int ExtractFullLinesFromBuffer();
// Tries to parse full lines stored in |lines_|. Returns network error code.
int ParseLines();
// Called when we received the entire input. Propagates that info to remaining
// parsers. Returns network error code.
int OnEndOfInput();
// Detected encoding of the response (empty if unknown or ASCII).
std::string encoding_;
// Buffer to keep not-yet-split data.
std::string buffer_;
// CRLF-delimited lines, without the CRLF, not yet consumed by parser.
std::deque<string16> lines_;
// A collection of parsers for different listing styles. The parsers are owned
// by this FtpDirectoryListingBuffer.
ParserSet parsers_;
// When we're sure about the listing format, its parser is stored in
// |current_parser_|.
FtpDirectoryListingParser* current_parser_;
DISALLOW_COPY_AND_ASSIGN(FtpDirectoryListingBuffer);
};
} // namespace net
#endif // NET_FTP_FTP_DIRECTORY_LISTING_BUFFER_H_
|
