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1 /* |
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2 * ZipArchive.cpp -- wrapper around libzip |
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3 * |
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4 * Copyright (c) 2013-2015 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include <cerrno> |
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20 #include <cstdlib> |
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21 #include <cstring> |
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22 #include <stdexcept> |
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23 |
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24 #include "ZipArchive.h" |
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25 |
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26 namespace source { |
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27 |
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28 /* -------------------------------------------------------- |
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29 * Buffer (zip_source_buffer) |
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30 * -------------------------------------------------------- */ |
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31 |
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32 Buffer::Buffer(std::string data) |
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33 : m_data(std::move(data)) |
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34 { |
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35 } |
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36 |
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37 struct zip_source *Buffer::source(struct zip *archive) const |
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38 { |
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39 auto size = m_data.size(); |
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40 auto data = static_cast<char *>(std::malloc(size)); |
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41 |
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42 if (data == nullptr) |
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43 throw std::runtime_error(std::strerror(errno)); |
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44 |
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45 std::memcpy(data, m_data.data(), size); |
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46 |
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47 auto src = zip_source_buffer(archive, data, size, 1); |
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48 |
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49 if (src == nullptr) { |
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50 std::free(data); |
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51 throw std::runtime_error(zip_strerror(archive)); |
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52 } |
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53 |
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54 return src; |
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55 } |
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56 |
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57 /* -------------------------------------------------------- |
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58 * File (zip_source_file) |
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59 * -------------------------------------------------------- */ |
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60 |
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61 File::File(std::string path, ZipUint64 start, ZipInt64 length) |
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62 : m_path(std::move(path)) |
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63 , m_start(start) |
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64 , m_length(length) |
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65 { |
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66 } |
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67 |
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68 struct zip_source *File::source(struct zip *archive) const |
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69 { |
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70 auto src = zip_source_file(archive, m_path.c_str(), m_start, m_length); |
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71 |
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72 if (src == nullptr) |
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73 throw std::runtime_error(zip_strerror(archive)); |
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74 |
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75 return src; |
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76 } |
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77 |
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78 } // !source |
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79 |
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80 /* -------------------------------------------------------- |
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81 * ZipArchive |
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82 * ------------------------------------------------------- */ |
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83 |
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84 ZipArchive::ZipArchive(const std::string &path, ZipFlags flags) |
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85 : m_handle(nullptr, nullptr) |
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86 { |
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87 int error; |
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88 struct zip *archive = zip_open(path.c_str(), flags, &error); |
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89 |
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90 if (archive == nullptr) |
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91 { |
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92 char buf[128]{}; |
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93 |
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94 zip_error_to_str(buf, sizeof (buf), error, errno); |
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95 |
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96 throw std::runtime_error(buf); |
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97 } |
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98 |
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99 m_handle = { archive, zip_close }; |
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100 } |
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101 |
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102 void ZipArchive::setFileComment(ZipUint64 index, const std::string &text, ZipFlags flags) |
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103 { |
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104 auto size = text.size(); |
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105 auto cstr = (size == 0) ? nullptr : text.c_str(); |
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106 |
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107 if (zip_file_set_comment(m_handle.get(), index, cstr, size, flags) < 0) |
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108 throw std::runtime_error(zip_strerror(m_handle.get())); |
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109 } |
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110 |
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111 std::string ZipArchive::getFileComment(ZipUint64 index, ZipFlags flags) const |
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112 { |
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113 zip_uint32_t length = 0; |
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114 auto text = zip_file_get_comment(m_handle.get(), index, &length, flags); |
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115 |
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116 if (text == nullptr) |
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117 throw std::runtime_error(zip_strerror(m_handle.get())); |
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118 |
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119 return { text, length }; |
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120 } |
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121 |
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122 void ZipArchive::setComment(const std::string &comment) |
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123 { |
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124 if (zip_set_archive_comment(m_handle.get(), comment.c_str(), comment.size()) < 0) |
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125 throw std::runtime_error(zip_strerror(m_handle.get())); |
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126 } |
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127 |
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128 std::string ZipArchive::getComment(ZipFlags flags) const |
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129 { |
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130 int length = 0; |
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131 auto text = zip_get_archive_comment(m_handle.get(), &length, flags); |
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132 |
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133 if (text == nullptr) |
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134 throw std::runtime_error(zip_strerror(m_handle.get())); |
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135 |
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136 return { text, static_cast<size_t>(length) }; |
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137 } |
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138 |
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139 bool ZipArchive::exists(const std::string &name, ZipFlags flags) const noexcept |
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140 { |
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141 return zip_name_locate(m_handle.get(), name.c_str(), flags) >= 0; |
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142 } |
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143 |
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144 ZipInt64 ZipArchive::find(const std::string &name, ZipFlags flags) const |
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145 { |
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146 auto index = zip_name_locate(m_handle.get(), name.c_str(), flags); |
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147 |
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148 if (index < 0) |
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149 throw std::runtime_error(zip_strerror(m_handle.get())); |
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150 |
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151 return index; |
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152 } |
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153 |
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154 ZipStat ZipArchive::stat(const std::string &name, ZipFlags flags) const |
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155 { |
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156 ZipStat st; |
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157 |
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158 if (zip_stat(m_handle.get(), name.c_str(), flags, &st) < 0) |
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159 throw std::runtime_error(zip_strerror(m_handle.get())); |
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160 |
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161 return st; |
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162 } |
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163 |
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164 ZipStat ZipArchive::stat(ZipUint64 index, ZipFlags flags) const |
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165 { |
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166 ZipStat st; |
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167 |
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168 if (zip_stat_index(m_handle.get(), index, flags, &st) < 0) |
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169 throw std::runtime_error(zip_strerror(m_handle.get())); |
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170 |
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171 return st; |
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172 } |
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173 |
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174 ZipInt64 ZipArchive::add(const ZipSource &source, const std::string &name, ZipFlags flags) |
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175 { |
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176 auto src = source.source(m_handle.get()); |
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177 auto ret = zip_file_add(m_handle.get(), name.c_str(), src, flags); |
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178 |
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179 if (ret < 0) { |
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180 zip_source_free(src); |
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181 throw std::runtime_error(zip_strerror(m_handle.get())); |
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182 } |
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183 |
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184 return ret; |
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185 } |
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186 |
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187 ZipInt64 ZipArchive::addDirectory(const std::string &directory, ZipFlags flags) |
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188 { |
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189 auto ret = zip_dir_add(m_handle.get(), directory.c_str(), flags); |
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190 |
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191 if (ret < 0) |
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192 throw std::runtime_error(zip_strerror(m_handle.get())); |
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193 |
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194 return ret; |
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195 } |
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196 |
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197 void ZipArchive::replace(const ZipSource &source, ZipUint64 index, ZipFlags flags) |
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198 { |
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199 auto src = source.source(m_handle.get()); |
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200 |
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201 if (zip_file_replace(m_handle.get(), index, src, flags) < 0) { |
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202 zip_source_free(src); |
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203 throw std::runtime_error(zip_strerror(m_handle.get())); |
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204 } |
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205 } |
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206 |
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207 ZipFile ZipArchive::open(const std::string &name, ZipFlags flags, const std::string &password) |
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208 { |
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209 struct zip_file *file; |
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210 |
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211 if (password.size() > 0) |
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212 file = zip_fopen_encrypted(m_handle.get(), name.c_str(), flags, password.c_str()); |
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213 else |
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214 file = zip_fopen(m_handle.get(), name.c_str(), flags); |
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215 |
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216 if (file == nullptr) |
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217 throw std::runtime_error(zip_strerror(m_handle.get())); |
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218 |
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219 return file; |
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220 } |
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221 |
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222 ZipFile ZipArchive::open(ZipUint64 index, ZipFlags flags, const std::string &password) |
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223 { |
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224 struct zip_file *file; |
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225 |
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226 if (password.size() > 0) |
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227 file = zip_fopen_index_encrypted(m_handle.get(), index, flags, password.c_str()); |
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228 else |
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229 file = zip_fopen_index(m_handle.get(), index, flags); |
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230 |
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231 if (file == nullptr) |
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232 throw std::runtime_error(zip_strerror(m_handle.get())); |
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233 |
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234 return file; |
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235 } |
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236 |
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237 void ZipArchive::rename(ZipUint64 index, const std::string &name, ZipFlags flags) |
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238 { |
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239 if (zip_file_rename(m_handle.get(), index, name.c_str(), flags) < 0) |
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240 throw std::runtime_error(zip_strerror(m_handle.get())); |
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241 } |
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242 |
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243 void ZipArchive::setFileCompression(ZipUint64 index, ZipInt32 comp, ZipUint32 flags) |
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244 { |
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245 if (zip_set_file_compression(m_handle.get(), index, comp, flags) < 0) |
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246 throw std::runtime_error(zip_strerror(m_handle.get())); |
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247 } |
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248 |
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249 void ZipArchive::remove(ZipUint64 index) |
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250 { |
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251 if (zip_delete(m_handle.get(), index) < 0) |
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252 throw std::runtime_error(zip_strerror(m_handle.get())); |
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253 } |
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254 |
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255 ZipInt64 ZipArchive::numEntries(ZipFlags flags) const noexcept |
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256 { |
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257 return zip_get_num_entries(m_handle.get(), flags); |
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258 } |
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259 |
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260 void ZipArchive::unchange(ZipUint64 index) |
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261 { |
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262 if (zip_unchange(m_handle.get(), index) < 0) |
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263 throw std::runtime_error(zip_strerror(m_handle.get())); |
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264 } |
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265 |
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266 void ZipArchive::unchangeAll() |
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267 { |
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268 if (zip_unchange_all(m_handle.get()) < 0) |
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269 throw std::runtime_error(zip_strerror(m_handle.get())); |
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270 } |
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271 |
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272 void ZipArchive::unchangeArchive() |
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273 { |
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274 if (zip_unchange_archive(m_handle.get()) < 0) |
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275 throw std::runtime_error(zip_strerror(m_handle.get())); |
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276 } |
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277 |
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278 void ZipArchive::setDefaultPassword(const std::string &password) |
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279 { |
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280 auto cstr = (password.size() > 0) ? password.c_str() : nullptr; |
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281 |
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282 if (zip_set_default_password(m_handle.get(), cstr) < 0) |
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283 throw std::runtime_error(zip_strerror(m_handle.get())); |
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284 } |
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285 |
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286 void ZipArchive::setFlag(ZipFlags flags, int value) |
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287 { |
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288 if (zip_set_archive_flag(m_handle.get(), flags, value) < 0) |
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289 throw std::runtime_error(zip_strerror(m_handle.get())); |
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290 } |
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291 |
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292 int ZipArchive::getFlag(ZipFlags which, ZipFlags flags) const |
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293 { |
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294 auto ret = zip_get_archive_flag(m_handle.get(), which, flags); |
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295 |
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296 if (ret < 0) |
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297 throw std::runtime_error(zip_strerror(m_handle.get())); |
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298 |
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299 return ret; |
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300 } |
