summaryrefslogtreecommitdiffstats
path: root/kget/kfileio.cpp
blob: 59f26af6bee0e8a8a4774d373d924ae3a4b66f1c (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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/***************************************************************************
*                                kfileio.cpp
*                             -------------------
*
*    Revision     : $Id$
*    begin        : Tue Jan 29 2002
*    copyright    : (C) 2002 by Patrick Charbonnier
*
*    email        : pch@freeshell.org
*
***************************************************************************/

// Author: Stefan Taferner <taferner@kde.org>

#include <tqapplication.h>
#include <tqstring.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <tqfile.h>
#include <tqfileinfo.h>

#include <kdebug.h>
#include <klocale.h>
#include <kmessagebox.h>

#include "kfileio.h"

//-----------------------------------------------------------------------------
TQString kFileToString(const TQString & aFileName, bool aEnsureNL, bool aVerbose)
{
    TQCString result;

    TQFileInfo info(aFileName);
    unsigned int readLen;
    unsigned int len = info.size();
    TQFile file(aFileName);

    // assert(aFileName!=NULL);
    if (aFileName == NULL)
        return "";

    if (!info.exists()) {
        if (aVerbose)
            KMessageBox::error(tqApp->mainWidget(), i18n("The specified file does not exist:\n%1").arg(aFileName));
        return TQString();
    }
    if (info.isDir()) {
        if (aVerbose)
            KMessageBox::error(tqApp->mainWidget(), i18n("This is a folder and not a file:\n%1").arg(aFileName));
        return TQString();
    }
    if (!info.isReadable()) {
        if (aVerbose)
            KMessageBox::error(tqApp->mainWidget(), i18n("You do not have read permission for the file:\n%1").arg(aFileName));
        return TQString();
    }
    if (len <= 0)
        return TQString();

    if (!file.open(IO_Raw | IO_ReadOnly)) {
        if (aVerbose)
            switch (file.status()) {
            case IO_ReadError:
                KMessageBox::error(tqApp->mainWidget(), i18n("Could not read file:\n%1").arg(aFileName));
                break;
            case IO_OpenError:
                KMessageBox::error(tqApp->mainWidget(), i18n("Could not open file:\n%1").arg(aFileName));
                break;
            default:
                KMessageBox::error(tqApp->mainWidget(), i18n("Error while reading file:\n%1").arg(aFileName));
            }
        return TQString();
    }

    result.resize(len + (int) aEnsureNL + 1);
    readLen = file.readBlock(result.data(), len);
    if (aEnsureNL && result[len - 1] != '\n') {
        result[len++] = '\n';
        readLen++;
    }
    result[len] = '\0';

    if (readLen < len) {
        TQString msg = i18n("Could only read %1 bytes of %2.").arg(KGlobal::locale()->formatNumber(readLen,
                      0)).arg(KGlobal::locale()->formatNumber(len, 0));

        KMessageBox::error(tqApp->mainWidget(), msg);
        return TQString();
    }

    kdDebug() << "kFileToString: " << readLen << " bytes read" << endl;
    return result;
}


//-----------------------------------------------------------------------------
static bool kBytesToFile(const char *aBuffer, int len, const TQString & aFileName, bool aAskIfExists, bool aBackup, bool aVerbose)
{
    TQFile file(aFileName);
    TQFileInfo info(aFileName);
    int writeLen, rc;

    // assert(aFileName!=NULL);
    if (aFileName.isNull())
        return false;

    if (info.exists()) {
        if (aAskIfExists) {
            TQString str = i18n("File %1 exists.\nDo you want to replace it?").arg(aFileName);

            rc = KMessageBox::questionYesNo(tqApp->mainWidget(), str, TQString(), i18n("Replace"),KStdGuiItem::cancel());
            if (rc != KMessageBox::Yes)
                return FALSE;
        }
        if (aBackup) {
            // make a backup copy
            TQString bakName = aFileName;

            bakName += '~';
            TQFile::remove(bakName);
            rc = rename(TQFile::encodeName(aFileName), TQFile::encodeName(bakName));
            if (rc) {
                // failed to rename file
                if (!aVerbose)
                    return FALSE;
                rc = KMessageBox::warningContinueCancel(tqApp->mainWidget(), i18n("Failed to make a backup copy of %1.\nContinue anyway?").arg(aFileName));
                if (rc != KMessageBox::Continue)
                    return FALSE;
            }
        }
    }

    if (!file.open(IO_Raw | IO_WriteOnly)) {
        if (aVerbose)
            switch (file.status()) {
            case IO_WriteError:
                KMessageBox::error(tqApp->mainWidget(), i18n("Could not write to file:\n%1").arg(aFileName));
                break;
            case IO_OpenError:
                KMessageBox::error(tqApp->mainWidget(), i18n("Could not open file for writing:\n%1").arg(aFileName));
                break;
            default:
                KMessageBox::error(tqApp->mainWidget(), i18n("Error while writing file:\n%1").arg(aFileName));
            }
        return FALSE;
    }

    writeLen = file.writeBlock(aBuffer, len);

    if (writeLen < 0) {
        KMessageBox::error(tqApp->mainWidget(), i18n("Could not write to file:\n%1").arg(aFileName));
        return FALSE;
    } else if (writeLen < len) {
        TQString msg = i18n("Could only write %1 bytes of %2.").arg(KGlobal::locale()->formatNumber(writeLen,
                      0)).arg(KGlobal::locale()->formatNumber(len,
                                                              0));

        KMessageBox::error(tqApp->mainWidget(), msg);
        return FALSE;
    }

    return TRUE;
}

bool kCStringToFile(const TQCString & aBuffer, const TQString & aFileName, bool aAskIfExists, bool aBackup, bool aVerbose)
{
    return kBytesToFile(aBuffer, aBuffer.length(), aFileName, aAskIfExists, aBackup, aVerbose);
}

bool kByteArrayToFile(const TQByteArray & aBuffer, const TQString & aFileName, bool aAskIfExists, bool aBackup, bool aVerbose)
{
    return kBytesToFile(aBuffer, aBuffer.size(), aFileName, aAskIfExists, aBackup, aVerbose);
}