aboutsummaryrefslogtreecommitdiffstats
path: root/grpmi/curl_download/curl_download.xs
blob: 9fd8b766449015411d4a7b5d6c6575e00e6c62fe (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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/* -*- c -*-
 *
 * Copyright (c) 2002 Guillaume Cottenceau (gc at mandrakesoft dot com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 ******************************************************************************/

#define _GNU_SOURCE
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include <curl/curl.h>
#include <curl/easy.h>

#include <libintl.h>
#undef _
#define _(arg) dgettext("grpmi", arg)

char * my_asprintf(char *msg, ...)
{
	char * out;
	va_list args;
	va_start(args, msg);
	if (vasprintf(&out, msg, args) == -1)
		out = "";
	va_end(args);
	return out;
}


SV * downloadprogress_callback_sv = NULL;

int my_progress_func(void *ptr, double td, double dd, double tu, double du)
{
	dSP;
	if (!downloadprogress_callback_sv)
		return 0;
	ENTER;
	SAVETMPS;
	PUSHMARK(SP);
  	XPUSHs(sv_2mortal(newSVnv(td)));
  	XPUSHs(sv_2mortal(newSVnv(dd)));
  	PUTBACK;
  	perl_call_sv(downloadprogress_callback_sv, G_DISCARD);
	FREETMPS;
	LEAVE;
	return 0;
}

char * download_url_real(char * url, char * location, char * proxy)
{
	CURL *curl;
	CURLcode rescurl = CURL_LAST;

	if ((curl = curl_easy_init())) {
		char * outfilename;
		struct stat statbuf;
		char * filename = basename(url);
		FILE * outfile;

		if (stat(location, &statbuf) || !S_ISDIR(statbuf.st_mode))
			return _("Directory where to put download must be existing");

		if (asprintf(&outfilename, "%s/%s", location, filename) == -1)
			return _("Out of memory\n");

		if (!stat(outfilename, &statbuf) && S_ISREG(statbuf.st_mode)) {
			curl_easy_setopt(curl, CURLOPT_RESUME_FROM, statbuf.st_size);
		} else {
			unlink(outfilename);
			curl_easy_setopt(curl, CURLOPT_RESUME_FROM, 0);
		}
	
		outfile = fopen(outfilename, "a");
		free(outfilename);

		if (!outfile)
			return _("Could not open output file in append mode");

		curl_easy_setopt(curl, CURLOPT_URL, url);
		curl_easy_setopt(curl, CURLOPT_FILE, outfile);
		curl_easy_setopt(curl, CURLOPT_NOPROGRESS, FALSE);
		curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);

		if (proxy && strcmp(proxy, ""))
			curl_easy_setopt(curl, CURLOPT_PROXY, proxy);

		rescurl = curl_easy_perform(curl);

		if (rescurl == CURLE_ALREADY_COMPLETE)
			rescurl = CURLE_OK;
	
		fclose(outfile);
		curl_easy_cleanup(curl);
	}
	
	if (rescurl != CURLE_OK) {
		switch (rescurl) {
		case CURLE_UNSUPPORTED_PROTOCOL:
			return _("Unsupported protocol\n");
			break;
		case CURLE_FAILED_INIT:
			return _("Failed init\n");
			break;
		case CURLE_URL_MALFORMAT:
			return _("Bad URL format\n");
			break;
		case CURLE_URL_MALFORMAT_USER:
			return _("Bad user format in URL\n");
			break;
		case CURLE_COULDNT_RESOLVE_PROXY:
			return _("Couldn't resolve proxy\n");
			break;
		case CURLE_COULDNT_RESOLVE_HOST:
			return _("Couldn't resolve host\n");
			break;
		case CURLE_COULDNT_CONNECT:
			return _("Couldn't connect\n");
			break;
		case CURLE_FTP_WEIRD_SERVER_REPLY:
			return _("Ftp weird server reply\n");
			break;
		case CURLE_FTP_ACCESS_DENIED:
			return _("Ftp access denied\n");
			break;
		case CURLE_FTP_USER_PASSWORD_INCORRECT:
			return _("Ftp user password incorrect\n");
			break;
		case CURLE_FTP_WEIRD_PASS_REPLY:
			return _("Ftp weird PASS reply\n");
			break;
		case CURLE_FTP_WEIRD_USER_REPLY:
			return _("Ftp weird USER reply\n");
			break;
		case CURLE_FTP_WEIRD_PASV_REPLY:
			return _("ftp weird PASV reply\n");
			break;
		case CURLE_FTP_WEIRD_227_FORMAT:
			return _("Ftp weird 227 format\n");
			break;
		case CURLE_FTP_CANT_GET_HOST:
			return _("Ftp can't get host\n");
			break;
		case CURLE_FTP_CANT_RECONNECT:
			return _("Ftp can't reconnect\n");
			break;
		case CURLE_FTP_COULDNT_SET_BINARY:
			return _("Ftp couldn't set binary\n");
			break;
		case CURLE_PARTIAL_FILE:
			return _("Partial file\n");
			break;
		case CURLE_FTP_COULDNT_RETR_FILE:
			return _("Ftp couldn't RETR file\n");
			break;
		case CURLE_FTP_WRITE_ERROR:
			return _("Ftp write error\n");
			break;
		case CURLE_FTP_QUOTE_ERROR:
			/* "quote" is an ftp command, not the typographic things, so
			 * don't translate that word */
			return _("Ftp quote error\n");
			break;
		case CURLE_HTTP_NOT_FOUND:
			return _("http not found\n");
			break;
		case CURLE_WRITE_ERROR:
			return _("Write error\n");
			break;
		case CURLE_MALFORMAT_USER: /* the user name is illegally specified */
			return _("User name illegally specified\n");
			break;
		case CURLE_FTP_COULDNT_STOR_FILE: /* failed FTP upload */
			return _("ftp couldn't STOR file\n");
			break;
		case CURLE_READ_ERROR: /* could open/read from file */
			return _("Read error\n");
			break;
		case CURLE_OUT_OF_MEMORY:
			return _("Out of memory\n");
			break;
		case CURLE_OPERATION_TIMEOUTED: /* the timeout time was reached */
			return _("Time out\n");
			break;
		case CURLE_FTP_COULDNT_SET_ASCII: /* TYPE A failed */
			return _("Ftp couldn't set ASCII\n");
			break;
		case CURLE_FTP_PORT_FAILED: /* FTP PORT operation failed */
			return _("Ftp PORT failed\n");
			break;
		case CURLE_FTP_COULDNT_USE_REST: /* the REST command failed */
			return _("Ftp couldn't use REST\n");
			break;
		case CURLE_FTP_COULDNT_GET_SIZE: /* the SIZE command failed */
			return _("Ftp couldn't get size\n");
			break;
		case CURLE_HTTP_RANGE_ERROR: /* The RANGE "command" didn't seem to work */
			return _("Http range error\n");
			break;
		case CURLE_HTTP_POST_ERROR:
			return _("Http POST error\n");
			break;
		case CURLE_SSL_CONNECT_ERROR: /* something was wrong when connecting with SSL */
			return _("Ssl connect error\n");
			break;
		case CURLE_FTP_BAD_DOWNLOAD_RESUME: /* couldn't resume download */
			return _("Ftp bad download resume\n");
			break;
		case CURLE_FILE_COULDNT_READ_FILE:
			return _("File couldn't read file\n");
			break;
		case CURLE_LDAP_CANNOT_BIND:
			return _("LDAP cannot bind\n");
			break;
		case CURLE_LDAP_SEARCH_FAILED:
			return _("LDAP search failed\n");
			break;
		case CURLE_LIBRARY_NOT_FOUND:
			return _("Library not found\n");
			break;
		case CURLE_FUNCTION_NOT_FOUND:
			return _("Function not found\n");
			break;
		case CURLE_ABORTED_BY_CALLBACK:
			return _("Aborted by callback\n");
			break;
		case CURLE_BAD_FUNCTION_ARGUMENT:
			return _("Bad function argument\n");
			break;
		case CURLE_BAD_CALLING_ORDER:
			return _("Bad calling order\n");
			break;
		default:
			return my_asprintf(_("Unknown error code %d\n"), rescurl);
			break;
		}
	}
	return "";
}


/************************** Gateway to Perl ****************************/

MODULE = curl_download		PACKAGE = curl_download
PROTOTYPES : DISABLE

char *
download(url, location, proxy, downloadprogress_callback)
     char * url
     char * location
     char * proxy
     SV * downloadprogress_callback
	CODE:
                downloadprogress_callback_sv = downloadprogress_callback;
                RETVAL = download_url_real(url, location, proxy);
        OUTPUT:
                RETVAL