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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2013 Olaf Wintermann. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include <stdio.h> |
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30 | #include <stdlib.h> |
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31 | #include <string.h> |
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32 | #include <errno.h> |
4 | 33 | #include <unistd.h> |
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34 | #include <time.h> |
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35 | #include <libxml/xmlerror.h> |
4 | 36 | #include <sys/types.h> |
37 | #include <sys/stat.h> | |
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38 | #include <ucx/string.h> |
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39 | |
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40 | #include "utils.h" |
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41 | #include "config.h" |
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42 | #include "crypto.h" |
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43 | #include "main.h" |
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44 | |
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45 | static DavContext *ctx; |
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46 | |
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47 | void xmlerrorfnc(void * c, const char * msg, ... ) { |
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48 | // nothing |
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49 | } |
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50 | |
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51 | int main(int argc, char **argv) { |
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52 | xmlGenericErrorFunc fnc = xmlerrorfnc; |
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53 | initGenericErrorDefaultFunc(&fnc); |
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54 | load_config(); |
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55 | ctx = dav_context_new(); |
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56 | dav_add_namespace(ctx, "U", "http://www.uap-core.de/"); |
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57 | |
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58 | if(argc < 2) { |
11 | 59 | fprintf(stderr, "Missing command\n"); |
60 | print_usage(argv[0]); | |
61 | return -1; | |
62 | } | |
63 | ||
64 | char *cmd = argv[1]; | |
65 | CmdArgs *args = cmd_parse_args(argc - 2, argv + 2); | |
66 | if(!args) { | |
67 | print_usage(argv[0]); | |
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68 | return -1; |
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69 | } |
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70 | |
11 | 71 | if(!strcmp(cmd, "list") || !strcmp(cmd, "ls")) { |
72 | return cmd_list(args); | |
73 | } else if(!strcmp(cmd, "get")) { | |
74 | return cmd_get(args); | |
75 | } else if(!strcmp(cmd, "put")) { | |
76 | return cmd_put(args); | |
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77 | } |
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78 | |
11 | 79 | print_usage(argv[0]); |
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80 | return -1; |
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81 | } |
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82 | |
11 | 83 | void print_usage(char *cmd) { |
84 | fprintf(stderr, "Usage: %s command [options] arguments...\n\n", cmd); | |
85 | fprintf(stderr, "Commands:\n"); | |
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86 | fprintf(stderr, " list [-alt] <url>\n"); |
11 | 87 | fprintf(stderr, " get [-p] [-k <key>] [-o <file>] <url>\n"); |
88 | fprintf(stderr, " put [-p] [-k <key>] <url> <file>\n"); | |
89 | fprintf(stderr, "\n"); | |
90 | fprintf(stderr, "Options:\n"); | |
91 | fprintf(stderr, | |
92 | " -k <key> Key to use for encryption or decryption\n"); | |
93 | fprintf(stderr, " -p Don't encrypt or decrypt files\n"); | |
94 | fprintf(stderr, " -o <file> Write output to file\n"); | |
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95 | fprintf(stderr, " -a show all files\n"); |
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96 | fprintf(stderr, " -l print resources in long list format\n"); |
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97 | fprintf(stderr, " -t print content type\n"); |
11 | 98 | fprintf(stderr, "\n"); |
99 | fprintf(stderr, | |
100 | "Instead of an url you can pass a repository name " | |
101 | "with an optional path:\n"); | |
102 | fprintf(stderr, " <repository>/path/\n"); | |
103 | fprintf(stderr, "\n"); | |
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104 | } |
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105 | |
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106 | void url_get_parts(char *url, char **root, char **path) { |
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107 | size_t ulen = strlen(url); |
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108 | *root = NULL; |
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109 | *path = NULL; |
4 | 110 | |
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111 | int s; |
11 | 112 | if(ulen > 7 && !strncasecmp(url, "http://", 7)) { |
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113 | s = 7; |
11 | 114 | } else if(ulen > 8 && !strncasecmp(url, "https://", 8)) { |
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115 | s = 8; |
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116 | } else { |
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117 | s = 1; |
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118 | } |
4 | 119 | |
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120 | for(int i=s;i<ulen;i++) { |
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121 | char c = url[i]; |
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122 | if(c == '/') { |
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123 | sstr_t r = sstrn(url, i); |
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124 | sstr_t p = sstrsubs(sstr(url), i); |
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125 | if(p.length == 0) { |
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126 | p = sstrn("/", 1); |
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127 | } |
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128 | *root = sstrdup(r).ptr; |
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129 | *path = sstrdup(p).ptr; |
4 | 130 | return; |
131 | } | |
132 | } | |
133 | ||
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134 | *root = strdup(url); |
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135 | *path = strdup("/"); |
4 | 136 | } |
137 | ||
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138 | void print_resource_error(DavSession *sn, DavResource *res) { |
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139 | char *res_url = util_concat_path(sn->base_url, res->path); |
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140 | switch(sn->error) { |
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141 | default: { |
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142 | fprintf(stderr, "Cannot get resource %s.\n", res_url); |
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143 | break; |
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144 | } |
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145 | case DAV_NOT_FOUND: { |
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146 | fprintf(stderr, "Resource %s not found.\n", res_url); |
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147 | break; |
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148 | } |
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149 | case DAV_UNAUTHORIZED: { |
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150 | fprintf(stderr, "Authentication required.\n"); |
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151 | break; |
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152 | } |
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153 | case DAV_FORBIDDEN: { |
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154 | fprintf(stderr, "Access forbidden.\n"); |
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155 | break; |
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156 | } |
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157 | } |
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158 | free(res_url); |
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159 | } |
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160 | |
4 | 161 | |
11 | 162 | int cmd_list(CmdArgs *a) { |
163 | if(a->argc == 0) { | |
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164 | return -1; |
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165 | } |
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166 | |
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167 | DavSession *sn = NULL; |
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169 | char *root = NULL; |
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170 | char *path = NULL; |
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171 | url_get_parts(url, &root, &path); |
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172 | |
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173 | Repository *repo = get_repository(root); |
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174 | if(repo) { |
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175 | sn = dav_session_new_auth(ctx, repo->url, repo->user, repo->password); |
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176 | } else { |
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177 | sn = dav_session_new(ctx, root); |
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178 | } |
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179 | |
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180 | //printf("baseurl: %s\n", sn->base_url); |
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181 | |
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182 | DavResource *ls = dav_get(sn, path, "U:crypto-key"); |
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183 | if(!ls) { |
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184 | print_resource_error(sn, ls); |
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185 | return -1; |
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186 | } |
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187 | |
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188 | // parameters |
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189 | int show_all = cmd_getoption(a, "all") ? 1 : 0; |
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190 | void (*print_func)(DavResource*, CmdArgs *); |
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191 | if(cmd_getoption(a, "list")) { |
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192 | print_func = ls_print_list_elm; |
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193 | } else { |
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194 | print_func = ls_print_elm; |
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195 | } |
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196 | DavResource *child = ls->children; |
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197 | while(child) { |
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198 | if(child->name[0] != '.' || show_all) { |
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199 | print_func(child, a); |
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200 | } |
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201 | child = child->next; |
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202 | } |
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203 | |
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204 | return 0; |
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205 | } |
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206 | |
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207 | static char* ls_date_str(time_t tm) { |
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208 | struct tm t; |
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209 | struct tm n; |
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210 | time_t now = time(NULL); |
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211 | localtime_r(&tm, &t); |
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212 | localtime_r(&now, &n); |
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213 | char *str = malloc(16); |
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214 | if(t.tm_year == n.tm_year) { |
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215 | strftime(str, 16, "%b %d %H:%M", &t); |
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216 | } else { |
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217 | strftime(str, 16, "%b %d %Y", &t); |
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218 | } |
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219 | return str; |
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220 | } |
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221 | |
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222 | static char* ls_size_str(DavResource *res) { |
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223 | char *str = malloc(16); |
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224 | uint64_t size = res->contentlength; |
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225 | |
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226 | if(res->iscollection) { |
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227 | snprintf(str, 16, "%" PRIu64, size); |
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228 | } else if(size < 0x400) { |
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229 | snprintf(str, 16, "%" PRIu64 " Bytes", size); |
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230 | } else if(size < 0x100000) { |
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231 | size /= 0x400; |
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232 | snprintf(str, 16, "%" PRIu64 " KiB", size); |
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233 | } else if(size < 0x40000000) { |
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234 | size /= 0x100000; |
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235 | snprintf(str, 16, "%" PRIu64 "MiB", size); |
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236 | } else if(size < 0x1000000000ULL) { |
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237 | size /= 0x40000000; |
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238 | snprintf(str, 16, "%" PRIu64 "GiB", size); |
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239 | } else { |
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240 | size /= 0x1000000000ULL; |
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241 | snprintf(str, 16, "%" PRIu64, "TiB", size); |
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242 | } |
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243 | return str; |
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244 | } |
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245 | |
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246 | void ls_print_list_elm(DavResource *res, CmdArgs *a) { |
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247 | char flags[16]; |
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248 | memset(flags, '-', 15); |
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249 | flags[2] = '\0'; |
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250 | |
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251 | int type_width = 0; |
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252 | char *type = res->contenttype; |
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253 | |
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254 | if(res->iscollection) { |
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255 | flags[0] = 'd'; |
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256 | type = ""; |
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257 | } |
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258 | char *keyprop = dav_get_property_ns( |
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259 | res, |
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260 | "http://www.uap-core.de/", |
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261 | "crypto-key"); |
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262 | if(keyprop) { |
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263 | flags[1] = 'c'; |
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264 | } |
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265 | |
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266 | if(cmd_getoption(a, "type")) { |
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267 | type_width = 20; |
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268 | } |
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269 | if(type == NULL || type_width == 0) { |
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270 | type = ""; |
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271 | } |
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272 | |
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273 | char *date = ls_date_str(res->lastmodified); |
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274 | char *size = ls_size_str(res); |
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275 | printf( |
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276 | "%s %*s %10s %12s %s\n", |
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277 | flags, |
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278 | type_width, type, |
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279 | size, |
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280 | date, |
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281 | res->name); |
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282 | free(date); |
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283 | free(size); |
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284 | } |
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285 | |
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286 | void ls_print_elm(DavResource *res, CmdArgs *a) { |
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287 | printf("%s\n", res->name); |
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288 | } |
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289 | |
11 | 290 | int cmd_get(CmdArgs *a) { |
291 | if(a->argc == 0) { | |
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292 | return -1; |
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293 | } |
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294 | |
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295 | DavSession *sn = NULL; |
11 | 296 | char *url = a->argv[0]; |
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297 | char *root = NULL; |
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298 | char *path = NULL; |
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299 | url_get_parts(url, &root, &path); |
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300 | |
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301 | Repository *repo = get_repository(root); |
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302 | if(repo) { |
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303 | sn = dav_session_new_auth(ctx, repo->url, repo->user, repo->password); |
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304 | } else { |
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305 | sn = dav_session_new(ctx, root); |
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306 | } |
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307 | |
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308 | DavResource *res = dav_get(sn, path, "U:crypto-key"); |
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309 | if(!res) { |
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310 | print_resource_error(sn, res); |
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311 | return -1; |
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312 | } |
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313 | |
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314 | /* |
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315 | * determine the output file |
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316 | * use stdout if the output file is - |
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317 | */ |
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318 | char *outfile = cmd_getoption(a, "output"); |
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319 | if(!outfile) { |
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320 | outfile = res->name; |
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321 | } |
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322 | FILE *out = !strcmp(outfile, "-") ? stdout : fopen(outfile, "w"); |
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323 | if(!out) { |
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324 | fprintf(stderr, "cannot open output file\n"); |
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325 | return -1; |
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326 | } |
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327 | |
12
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328 | |
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329 | /* |
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330 | * if the -p (plain) option is specified we don't decrypt files |
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331 | * use a key specified with the -k (key) option, a key from the |
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332 | * key property or the repository default key |
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333 | */ |
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334 | void *out_stream = out; |
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335 | dav_write_func write_func = (dav_write_func)fwrite; |
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336 | AESDecrypter *dec = NULL; |
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337 | char *plain = cmd_getoption(a, "plain"); |
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338 | char *keyname = cmd_getoption(a, "key"); |
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339 | if(!plain) { |
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340 | char *keyprop = dav_get_property_ns( |
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341 | res, |
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342 | "http://www.uap-core.de/", |
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343 | "crypto-key"); |
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344 | Key *key = NULL; |
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345 | char *kn = NULL; |
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346 | if(keyname) { |
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347 | kn = keyname; |
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348 | } else if(keyprop) { |
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349 | kn = keyprop; |
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350 | } else if(repo && repo->decrypt) { |
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351 | kn = repo->default_key; |
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352 | } |
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353 | if(kn) { |
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354 | key = get_key(kn); |
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355 | if(!key) { |
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356 | fprintf(stderr, "Key %s not found!\nAbort.\n", kn); |
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357 | // TODO: free |
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358 | return -1; |
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359 | } |
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360 | } |
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361 | |
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362 | if(key) { |
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363 | dec = aes_decrypter_new(key, out, (dav_write_func)fwrite); |
12
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364 | out_stream = dec; |
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365 | write_func = (dav_write_func)aes_write; |
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366 | } |
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367 | } |
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368 | |
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369 | int ret = dav_get_content(res, out_stream, write_func); |
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370 | if(dec) { |
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371 | aes_decrypter_close(dec); |
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372 | } |
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373 | fclose(out); |
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374 | if(ret && strcmp(outfile, "-")) { |
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375 | unlink(outfile); |
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376 | } |
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377 | |
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378 | return 0; |
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379 | } |
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380 | |
11 | 381 | int cmd_put(CmdArgs *a) { |
382 | if(a->argc < 2) { | |
4 | 383 | return -1; |
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384 | } |
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385 | |
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386 | DavSession *sn = NULL; |
11 | 387 | char *url = a->argv[0]; |
388 | char *file = a->argv[1]; | |
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389 | char *root = NULL; |
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390 | char *path = NULL; |
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391 | url_get_parts(url, &root, &path); |
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392 | |
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393 | Repository *repo = get_repository(root); |
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394 | if(repo) { |
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395 | sn = dav_session_new_auth(ctx, repo->url, repo->user, repo->password); |
4 | 396 | } else { |
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397 | sn = dav_session_new(ctx, root); |
4 | 398 | } |
399 | ||
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400 | /* |
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401 | * use stdin if the input file is - |
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402 | */ |
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403 | FILE *in = !strcmp(file, "-") ? in : fopen(file, "r"); |
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404 | if(!in) { |
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405 | fprintf(stderr, "cannot open input file\n"); |
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406 | return -1; |
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407 | } |
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408 | |
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409 | DavResource *res = dav_resource_new(sn, path); |
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410 | if(!res) { |
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411 | fprintf(stderr, "error\n"); |
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412 | return -1; |
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413 | } |
12
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414 | |
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415 | AESEncrypter *enc = NULL; |
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416 | char *keyname = cmd_getoption(a, "key"); |
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417 | char *kn = NULL; |
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418 | char *plain = cmd_getoption(a, "plain"); |
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419 | if(!plain && (keyname || repo)) { |
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420 | kn = keyname ? keyname : repo->default_key; |
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421 | Key *key = get_key(kn); |
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422 | if(!key) { |
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423 | fprintf(stderr, "Key %s not found!\nAbort.\n", kn); |
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424 | // TODO: free |
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425 | return -1; |
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426 | } |
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427 | if(keyname || repo->encrypt) { |
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428 | enc = aes_encrypter_new(key, in, (dav_read_func)fread); |
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429 | } |
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430 | } |
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431 | if(enc) { |
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432 | dav_set_content(res, enc, (dav_read_func)aes_read); |
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433 | dav_set_property_ns(res, "http://www.uap-core.de/", "crypto-key", kn); |
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434 | } else { |
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435 | dav_set_content(res, in, (dav_read_func)fread); |
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436 | } |
4 | 437 | |
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438 | if(dav_store(res)) { |
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439 | print_resource_error(sn, res); |
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440 | fprintf(stderr, "Cannot upload file.\n"); |
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441 | fclose(in); |
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442 | return -1; |
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443 | } |
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444 | if(enc) { |
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445 | aes_encrypter_close(enc); |
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446 | } |
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447 | fclose(in); |
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448 | return 0; |
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449 | } |