1 | #include "fileCopier.h"
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2 |
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3 | #include <stdlib.h>
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4 | #include <stdio.h>
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5 | //#include <dir.h>
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6 | #include <direct.h>
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7 |
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8 | fileCopySet::fileCopySet()
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9 | {
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10 | // do we need this - they're FilePath's, not pointers
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11 | // this->sourceDir = NULL;
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12 | // this->destDir = NULL;
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13 | }
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14 |
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15 | fileCopySet::fileCopySet(FileVector files, FilePath &from, FilePath &to)
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16 | {
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17 | this->fileList = files;
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18 | this->sourceDir = from;
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19 | this->destDir = to;
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20 | this->dataSize = 0;
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21 |
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22 | FileVector::iterator here = files.begin();
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23 | FileVector::iterator end = files.end();
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24 |
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25 | while (here != end)
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26 | {
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27 | this->dataSize += here->getFileSize();
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28 | here ++;
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29 | }
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30 | }
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31 |
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32 | /**
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33 | * Get the destination file name for a given source file; source and destination
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34 | * directory locations are obtained from the object
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35 | */
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36 | char *fileCopySet::destination(File *file)
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37 | {
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38 | const char *oldname = file->cString();
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39 | char *newname = (char *) malloc(strlen(oldname) - strlen(this->sourceDir.cString()) + strlen(this->destDir.cString()) + 1);
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40 |
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41 | if (newname != NULL)
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42 | {
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43 | strcpy(newname, this->destDir.cString());
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44 | strcat(newname, &oldname[strlen(this->sourceDir.cString())]);
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45 | }
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46 |
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47 | return newname;
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48 | }
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49 |
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50 | bool fileCopySet::ensureParent(FilePath &child, fileCopyMonitor *monitor)
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51 | { FilePath *parentName = child.parent();
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52 |
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53 | // check for existence of parent
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54 | if (parentName->exists() == false)
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55 | { // ensure the grandparent exists
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56 | if (!this->ensureParent(*parentName, monitor))
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57 | { return false;
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58 | }
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59 |
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60 | // create parent directory
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61 | _mkdir(parentName->cString());
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62 |
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63 | // log the creation - we don't give a source - it's not needed for directories
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64 | if (monitor != NULL)
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65 | { monitor->copiedDir(parentName->cString());
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66 | }
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67 | }
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68 | delete parentName;
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69 | return true;
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70 | }
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71 |
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72 | /**
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73 | * Copy a particular file to its destination
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74 | */
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75 | bool fileCopySet::copyFile(File *file, fileCopyMonitor *monitor, copyProgressBar *progressBar)
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76 | {
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77 | unsigned long copied = 0;
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78 | unsigned long bytes_read, bytes_written;
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79 | unsigned char buffer[65536];
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80 | FILE *read_handle, *write_handle;
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81 | char *destination;
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82 |
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83 | // get destination as a char[] block; will free it later
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84 | destination = this->destination(file);
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85 |
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86 | // ensure that the parent exists, as some install requirements are for files with
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87 | // directory paths which may not preexist
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88 | FilePath destPath(destination);
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89 | this->ensureParent(destPath, monitor);
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90 |
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91 | // get read and write file handles
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92 | read_handle = fopen(file->cString(), "rb");
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93 | if (read_handle == NULL)
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94 | {
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95 | return false;
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96 | }
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97 | write_handle = fopen(destination, "wb");
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98 | if (write_handle == NULL)
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99 | {
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100 | fclose(read_handle);
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101 | return false;
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102 | }
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103 |
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104 | while (copied < file->getFileSize())
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105 | {
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106 | // TODO: lock
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107 | // read so many bytes
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108 | if (file->getFileSize() - copied < 65536)
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109 | {
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110 | bytes_read = file->getFileSize() - copied;
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111 | }
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112 | else
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113 | {
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114 | bytes_read = 65536;
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115 | }
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116 | bytes_read = fread((void *) buffer, 1, bytes_read, read_handle);
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117 |
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118 | // write so many bytes
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119 | bytes_written = fwrite((void *) buffer, 1, bytes_read, write_handle);
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120 |
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121 | // TODO: unlock
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122 |
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123 | // note new bytes copied
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124 | copied += bytes_written;
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125 | this->dataSize += bytes_written;
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126 | }
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127 | fclose(read_handle);
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128 | fclose(write_handle);
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129 |
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130 | // free destination filename text
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131 | if (monitor != NULL)
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132 | {
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133 | monitor->copiedFile(file->cString(), destination);
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134 | }
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135 | delete destination;
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136 | return true;
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137 | }
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138 |
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139 | /**
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140 | * Copy a file "object" (may be a directory or a "proper" file) to it's
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141 | * destination
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142 | */
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143 | void fileCopySet::copy(File *file, fileCopyMonitor *monitor, copyProgressBar *progressBar)
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144 | {
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145 | // just skip this file if it doesn't exist
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146 | if (file->exists() == false)
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147 | {
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148 | return;
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149 | }
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150 |
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151 | // if a directory, scan it.
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152 | if (file->isDirectory())
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153 | {
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154 |
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155 | // get destination directory
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156 | char *thisDestDir = this->destination(file);
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157 | FilePath destPath(thisDestDir);
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158 |
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159 | // create a directory if needsbe
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160 | if (destPath.exists() == false)
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161 | {
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162 | _mkdir(thisDestDir);
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163 |
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164 | // note amount of data copied
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165 | // this->copied += file->getRawFileSize();
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166 |
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167 | // note for uninstall the action done
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168 | if (monitor != NULL)
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169 | {
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170 | monitor->copiedDir(thisDestDir);
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171 | }
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172 | }
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173 |
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174 | // copy children
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175 | vector<File>::iterator here = file->childBegin();
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176 | vector<File>::iterator end = file->childEnd();
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177 | while (here != end)
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178 | {
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179 | this->copy(here, monitor, progressBar);
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180 | here ++;
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181 | }
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182 |
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183 | // delete constructed destination name
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184 | delete thisDestDir;
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185 | }
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186 |
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187 | // not a directory; just copy the file
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188 | else
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189 | {
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190 | // copy file itself
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191 | this->copyFile(file, monitor, progressBar);
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192 | }
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193 |
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194 | if (progressBar != NULL)
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195 | { progressBar->done(file->getRawFileSize());
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196 | }
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197 | }
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198 |
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199 | void fileCopySet::copy(fileCopyMonitor *monitor, copyProgressBar *progressBar)
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200 | {
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201 | FileVector::iterator here = fileList.begin();
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202 | FileVector::iterator end = fileList.end();
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203 | while (here != end)
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204 | {
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205 | this->copy(here, monitor, progressBar);
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206 | here ++;
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207 | }
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208 | }
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209 |
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210 | unsigned long fileCopySet::getCopiedSize(DiskSpace &space)
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211 | {
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212 | // initialise counters for size
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213 | unsigned long copiedSize = 0;
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214 |
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215 | // iterate through our list of files to obtain total space requirement
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216 | FileVector::iterator here = fileList.begin();
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217 | FileVector::iterator end = fileList.end();
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218 | while (here != end)
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219 | {
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220 | copiedSize += here->getDiskSpace(space);
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221 | here ++;
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222 | }
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223 | return copiedSize;
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224 | }
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225 |
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226 | unsigned long fileCopySet::getOriginalSize()
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227 | {
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228 | // initialise counters for size
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229 | return this->dataSize;
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230 | }
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231 |
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232 | /**
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233 | * Perform a check on the total space available at the destination; if not
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234 | * enough then return false to indicate the error state
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235 | */
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236 | bool fileCopier::checkSpace()
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237 | {
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238 | fileCopySetList localSet = this->list;
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239 |
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240 | do
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241 | {
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242 | unsigned int i = 0;
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243 |
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244 | // get destination root and use it to obtain space check information
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245 | FilePath *destRoot = localSet[0].destDir.root();
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246 | DiskSpace space(destRoot->cString());
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247 |
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248 | // check that diskspace checking is functional
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249 | if (space.initialisedOk() == false)
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250 | {
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251 | delete destRoot;
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252 | return false;
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253 | }
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254 |
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255 | // get size of the first set
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256 | unsigned long copiedSize = localSet[0].getCopiedSize(space);
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257 |
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258 | // dispose of the first set
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259 | localSet.erase(localSet.begin());
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260 |
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261 | // get all remaining sets and in turn if they share the root with
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262 | // the first root, add their size to the count and remove them from
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263 | // the local list of sets; otherwise skip
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264 | while (i < localSet.size())
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265 | {
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266 | // get a new root object for this set's destination
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267 | FilePath *p = localSet[i].destDir.root();
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268 |
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269 | if (*destRoot == *p)
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270 | {
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271 | copiedSize += localSet[i].getCopiedSize(space);
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272 | localSet.erase(localSet.begin() + i);
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273 | }
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274 | else
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275 | {
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276 | i ++;
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277 | }
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278 |
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279 | // delete the constructed root
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280 | delete p;
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281 | }
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282 |
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283 | // dispose of destination root
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284 | delete destRoot;
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285 |
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286 | // return false if not enough space
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287 | if (space.totalFreeSpace() < copiedSize)
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288 | {
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289 | return false;
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290 | }
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291 |
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292 | } while (localSet.size() != 0);
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293 |
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294 |
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295 | // record size and initialise the progressbar with the same
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296 | this->dataSize = 0;
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297 | for (unsigned int i = 0; i < this->list.size(); i ++)
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298 | {
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299 | this->dataSize += this->list[i].getOriginalSize();
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300 | }
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301 | this->progressBar.init(this->dataSize);
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302 |
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303 | // return postive check
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304 | return true;
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305 | }
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306 |
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307 | fileCopier::fileCopier(fileCopyMonitor *monitor, fileCopySetList &_list)
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308 | {
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309 | this->list = _list;
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310 | this->dataSize = 0;
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311 | this->copied = 0;
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312 | this->monitor = monitor;
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313 | }
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314 |
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315 | fileCopier::fileCopier(fileCopyMonitor *monitor)
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316 | {
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317 | this->dataSize = 0;
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318 | this->copied = 0;
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319 | this->monitor = monitor;
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320 | }
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321 |
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322 | void fileCopier::copy()
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323 | {
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324 | fileCopySetList::iterator here = list.begin();
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325 | fileCopySetList::iterator end = list.end();
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326 |
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327 |
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328 | this->progressBar.show();
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329 | while (here != end)
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330 | {
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331 | here->copy(this->monitor, &this->progressBar);
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332 | here ++;
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333 | }
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334 |
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335 | this->progressBar.close();
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336 | }
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