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
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
|
#ifndef lint
static char rcsId[]="$Header$";
#endif
/*****
* httpget.c : simple command line interface for retrieving a HTTP page
*
* This file Version $Revision$
*
* Creation date: Mon Oct 27 13:44:10 MET 1997
* Last modification: $Date$
* By: $Author$
* Current State: $State$
*
* Author: Koen D'Hondt
*
* Copyright (C) 1994-1997 by Ripley Software Development
* All Rights Reserved
*
* This file is part of the XmHTML Widget Library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*****/
/*****
* ChangeLog
* $Log$
*****/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <http/HTTP.h>
/*** External Function Prototype Declarations ***/
/*** Public Variable Declarations ***/
#ifdef DEBUG
extern int http_debug;
#endif
/*** Private Datatype Declarations ****/
/*** Private Function Prototype Declarations ****/
static void emitError(const char *msg, int error);
static char *gettemp(void);
/*** Private Variable Declarations ***/
#define PLAIN 0
#define HTML 1
static int return_http_error, save_error_text = 1;
static int output_error_format = HTML, output_to_stdout, head_only = 0;
static char *output;
static char *cookiefile;
static char *usage = {"httpget: retrieve a HTTP document\n"
"\nUsage: httpget -rsiq -f[p|h] -o [file] url\n"
"Where:\n"
"\turl : document to receive. Given as [http://]server/[document]\n"
"\t-o [file]: name of destination file. If not given stdout is used\n"
"\t-c [file]: name of cookie file. If not given no cookies are sent\n"
"\t-i : only get document info (HEAD)\n"
"\t-s : save HTTP error to output on failure\n"
"\t-f[p|h] : output format for errors: plain or html\n"
"\t-t [num] : timeout in seconds, default is 5\n"
"\t-r [num] : retry count, default is 0\n"
"\t-x : use HTTP error code as exit value\n"
#ifdef DEBUG
"\t-d : HTTP debug mode\n"
#endif
"\t-h : show this help.\n"};
static void
emitError(const char *msg, int error)
{
FILE *out;
if(save_error_text)
{
if(output_to_stdout)
out = stdout;
else
{
if((out = fopen(output, "w")) == NULL)
out = stdout;
}
}
else
out = stdout;
if(output_error_format == HTML)
{
fputs("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2//EN\">\n"
"<HTML><HEAD><TITLE>\n", out);
if(error)
fprintf(out, "HTTP/1.X Error: %i\n", error);
else
fprintf(out, "Error\n");
fputs("</TITLE></HEAD>\n"
"<body text=\"#0\" bgcolor=\"#cccccc\">\n"
"<div align=right><font face=\"arial,helvetica\" size=\"+1\">"
"Unable to complete HTTP request  \n</font>\n"
"</div><hr noshade size=\"2\"><p>\n", out);
}
fputs(msg, out);
fputs("\n", out);
if(output_error_format == HTML)
{
fputs("<p>\n<hr noshade size=\"2\">\n<div align=\"right\">"
"<font size=\"-1\"><i>\n"
"Last Updated: "
__DATE__
"<br>\nQuestion? Mail <a href=\"mailto:ripley@xs4all.nl\">"
"httpget</a>\n</i></font></div>\n"
"</BODY></HTML>\n", out);
}
fflush(out);
fclose(out);
if(return_http_error && error)
exit(error);
exit(EXIT_FAILURE);
}
static char*
gettemp(void)
{
static char buf[1024];
char *tmp;
if((tmp = getenv("TMP")) == NULL)
if((tmp = getenv("TMPDIR")) == NULL)
if((tmp = getenv("TEMP")) == NULL)
if((tmp = getenv("TEMPDIR")) == NULL)
tmp = "/tmp";
sprintf(buf, "%s%s%i.http_get", tmp,
(tmp[strlen(tmp)-1] == '/' ? "" : "/"), (int)time(NULL));
return(buf);
}
/*****
* Name:
* Return Type:
* Description:
* In:
*
* Returns:
*
*****/
int
main(int argc, char **argv)
{
HTTPRequest *req = NULL;
int i, j;
char *url = NULL;
char msg[1024];
int timeout = 5, retry = 0;
HTTPCookieCache *cc = NULL;
HTTPCookieRequest *cookieReq = NULL;
if(argc == 1)
{
fprintf(stderr, usage);
exit(EXIT_FAILURE);
}
/* parse command line */
for(i = 1; i < argc; i++)
{
if(argv[i][0] == '-')
{
for(j = 1; j < strlen(argv[i]); j++)
{
switch(argv[i][j])
{
#ifdef DEBUG
case 'd':
http_debug = 1;
break;
#endif
case 'i':
head_only = i;
break;
case 'h':
fprintf(stderr, usage);
exit(EXIT_FAILURE);
case 'c':
if(i+1 != argc)
{
if(argv[i+1][0] != '-')
cookiefile = argv[i+1];
j = strlen(argv[i+1]);
i++;
}
else
{
if(i+1 == argc)
emitError("missing arg for -c", 0);
}
break;
case 'o':
if(i+1 != argc)
{
if(argv[i+1][0] != '-')
output = argv[i+1];
j = strlen(argv[i+1]);
i++;
}
else
{
if(i+1 == argc)
emitError("missing arg for -o", 0);
}
break;
case 'x':
return_http_error = 1;
break;
case 's':
save_error_text = 1;
break;
case 'f':
if(j+1 == strlen(argv[i]))
emitError("missing flag to -f", 0);
if(argv[i][j+1] == 'p')
output_error_format = PLAIN;
else if(argv[i][j+1] == 'h')
output_error_format = HTML;
else
emitError("unknown flag to -f", 0);
j++;
break;
case 't':
if(i+1 != argc)
{
if(argv[i+1][0] != '-')
timeout = atoi(argv[i+1]);
else
emitError("bad argument for -t", 0);
j = strlen(argv[++i]);
}
else
{
if(i+1 == argc)
emitError("missing flag to -t", 0);
}
break;
case 'r':
if(i+1 != argc)
{
if(argv[i+1][0] != '-')
retry = atoi(argv[i+1]);
else
emitError("bad argument for -r", 0);
j = strlen(argv[++i]);
}
else
{
if(i+1 == argc)
emitError("missing flag to -t", 0);
}
break;
default:
fprintf(stderr, "Unknown option: %c\n", argv[i][j]);
fprintf(stderr, usage);
exit(EXIT_FAILURE);
break;
}
}
}
else
{
if(url == NULL)
url = argv[i];
}
}
if(url == NULL)
emitError("missing url: don't know what to fetch!", 0);
if(output == NULL)
{
output = gettemp();
output_to_stdout = 1;
}
if(cookiefile != NULL)
{
printf("using '%s' as the cookie file\n",cookiefile);
cc = loadCookieFileToCache(cookiefile, NetscapeCookieFile);
}
#ifdef NEED_SOCKS
SOCKSinit("httpget");
#endif
if((req = newHTTPRequest()) == NULL)
emitError("Out of memory: can't allocate a new HTTP request!", 0);
req->type = HTTPLoadToFile;
req->method = head_only ? HTTPHEAD : HTTPGET;
req->in_data = strdup(output);
req->retry = retry;
req->timeout = timeout;
/* no http:// given */
if(!HTTPAbsoluteURL(url))
{
req->url = (char*)calloc(8 + strlen(url), sizeof(char));
strcpy(req->url, "http://");
strcat(req->url, url);
}
else
req->url = strdup(url);
if(cc)
cookieReq = getCookieFromCache(cc, req->url);
loadHTTPURL(NULL, req, (void *) cookieReq );
/*****
* This is a one shot operation so we don't need to store the returned
* cookie in the cache
* In an extended application case we'd need to free the request after
* every loadHTTPURL()
*****/
if(cookieReq)
freeCookieRequest(cookieReq);
/* destroy the cookieCache */
if(cc)
freeCookieCache(cc, 1);
if(req->ret < 199 || req->ret > 399)
{
int error = (int)req->ret;
unlink(output);
sprintf(msg, "%s: %s", req->url,
HTTPErrorString((HTTPRequestReturn)error));
deleteHTTPRequest(req);
emitError(msg, error);
}
if(req->ret != HTTPSuccess)
printf("%s: %s\n", req->url,
HTTPErrorString(req->ret));
if(output_to_stdout)
{
FILE *in;
int c;
if((in = fopen(output, "r")) == NULL)
{
sprintf(msg, "Can't open temporary file %s for reading: %s",
output, strerror(errno));
emitError(msg, 0);
}
/* literal copy to stdout */
while((c = fgetc(in)) != EOF)
putc(c, stdout);
fclose(in);
unlink(output);
}
return(EXIT_SUCCESS);
}
|
