1/*-
2 * Copyright (c) 2011 Nathan Whitehorn
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#include <sys/param.h>
30#include <stdio.h>
31#include <errno.h>
32#include <fetch.h>
33#include <dialog.h>
34
35static int fetch_files(int nfiles, char **urls);
36
37int
38main(void)
39{
40	char *diststring;
41	char **urls;
42	int i, nfetched, ndists = 0;
43
44	if (getenv("DISTRIBUTIONS") == NULL) {
45		fprintf(stderr, "DISTRIBUTIONS variable is not set\n");
46		return (1);
47	}
48
49	diststring = strdup(getenv("DISTRIBUTIONS"));
50	for (i = 0; diststring[i] != 0; i++)
51		if (isspace(diststring[i]) && !isspace(diststring[i+1]))
52			ndists++;
53	ndists++; /* Last one */
54
55	urls = calloc(ndists, sizeof(const char *));
56	if (urls == NULL) {
57		fprintf(stderr, "Out of memory!\n");
58		free(diststring);
59		return (1);
60	}
61
62	init_dialog(stdin, stdout);
63	dialog_vars.backtitle = __DECONST(char *, "FreeBSD Installer");
64	dlg_put_backtitle();
65
66	for (i = 0; i < ndists; i++) {
67		urls[i] = malloc(PATH_MAX);
68		sprintf(urls[i], "%s/%s", getenv("BSDINSTALL_DISTSITE"),
69		    strsep(&diststring, " \t"));
70	}
71
72	if (chdir(getenv("BSDINSTALL_DISTDIR")) != 0) {
73		char error[512];
74		sprintf(error, "Could could change to directory %s: %s\n",
75		    getenv("BSDINSTALL_DISTDIR"), strerror(errno));
76		dialog_msgbox("Error", error, 0, 0, TRUE);
77		end_dialog();
78		return (1);
79	}
80
81	nfetched = fetch_files(ndists, urls);
82
83	end_dialog();
84
85	free(diststring);
86	for (i = 0; i < ndists; i++)
87		free(urls[i]);
88	free(urls);
89
90	return ((nfetched == ndists) ? 0 : 1);
91}
92
93static int
94fetch_files(int nfiles, char **urls)
95{
96	const char **items;
97	FILE *fetch_out, *file_out;
98	struct url_stat ustat;
99	off_t total_bytes, current_bytes, fsize;
100	char status[8];
101	char errormsg[512];
102	uint8_t block[4096];
103	size_t chunk;
104	int i, progress, last_progress;
105	int nsuccess = 0; /* Number of files successfully downloaded */
106
107	progress = 0;
108
109	/* Make the transfer list for dialog */
110	items = calloc(sizeof(char *), nfiles * 2);
111	if (items == NULL) {
112		fprintf(stderr, "Out of memory!\n");
113		return (-1);
114	}
115
116	for (i = 0; i < nfiles; i++) {
117		items[i*2] = strrchr(urls[i], '/');
118		if (items[i*2] != NULL)
119			items[i*2]++;
120		else
121			items[i*2] = urls[i];
122		items[i*2 + 1] = "Pending";
123	}
124
125	dialog_msgbox("", "Connecting to server.\nPlease wait...", 0, 0, FALSE);
126
127	/* Try to stat all the files */
128	total_bytes = 0;
129	for (i = 0; i < nfiles; i++) {
130		if (fetchStatURL(urls[i], &ustat, "") == 0 && ustat.size > 0)
131			total_bytes += ustat.size;
132	}
133
134	current_bytes = 0;
135	for (i = 0; i < nfiles; i++) {
136		last_progress = progress;
137		if (total_bytes == 0)
138			progress = (i*100)/nfiles;
139
140		fetchLastErrCode = 0;
141		fetch_out = fetchXGetURL(urls[i], &ustat, "");
142		if (fetch_out == NULL) {
143			snprintf(errormsg, sizeof(errormsg),
144			    "Error while fetching %s: %s\n", urls[i],
145			    fetchLastErrString);
146			items[i*2 + 1] = "Failed";
147			dialog_msgbox("Fetch Error", errormsg, 0, 0,
148			    TRUE);
149			continue;
150		}
151
152		items[i*2 + 1] = "In Progress";
153		fsize = 0;
154		file_out = fopen(items[i*2], "w+");
155		if (file_out == NULL) {
156			snprintf(errormsg, sizeof(errormsg),
157			    "Error while fetching %s: %s\n",
158			    urls[i], strerror(errno));
159			items[i*2 + 1] = "Failed";
160			dialog_msgbox("Fetch Error", errormsg, 0, 0,
161			    TRUE);
162			fclose(fetch_out);
163			continue;
164		}
165
166		while ((chunk = fread(block, 1, sizeof(block), fetch_out))
167		    > 0) {
168			if (fwrite(block, 1, chunk, file_out) < chunk)
169				break;
170
171			current_bytes += chunk;
172			fsize += chunk;
173
174			if (total_bytes > 0) {
175				last_progress = progress;
176				progress = (current_bytes*100)/total_bytes;
177			}
178
179			if (ustat.size > 0) {
180				sprintf(status, "-%jd", (fsize*100)/ustat.size);
181				items[i*2 + 1] = status;
182			}
183
184			if (progress > last_progress)
185				dialog_mixedgauge("Fetching Distribution",
186				    "Fetching distribution files...", 0, 0,
187				    progress, nfiles,
188				    __DECONST(char **, items));
189		}
190
191		if (ustat.size > 0 && fsize < ustat.size) {
192			if (fetchLastErrCode == 0)
193				snprintf(errormsg, sizeof(errormsg),
194				    "Error while fetching %s: %s\n",
195				    urls[i], strerror(errno));
196			else
197				snprintf(errormsg, sizeof(errormsg),
198				    "Error while fetching %s: %s\n",
199				    urls[i], fetchLastErrString);
200			items[i*2 + 1] = "Failed";
201			dialog_msgbox("Fetch Error", errormsg, 0, 0,
202				    TRUE);
203		} else {
204			items[i*2 + 1] = "Done";
205			nsuccess++;
206		}
207
208		fclose(fetch_out);
209		fclose(file_out);
210	}
211
212	free(items);
213	return (nsuccess);
214}
215
216