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1/*
2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
3 *
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
a482007a 5 * Copyright (C) 2007, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
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6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#ifndef _VIKING_DOWNLOAD_H
24#define _VIKING_DOWNLOAD_H
80214df2 25
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26#include <stdio.h>
27
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28G_BEGIN_DECLS
29
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30/* File content check */
31typedef gboolean (*VikFileContentCheckerFunc) (FILE*);
32gboolean a_check_map_file(FILE*);
33gboolean a_check_html_file(FILE*);
ae941b4c 34gboolean a_check_kml_file(FILE*);
1ac37c09 35
80214df2 36typedef struct {
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37 /**
38 * Check if the server has a more recent file than the one we have before downloading it
39 * This uses http header If-Modified-Since
40 */
6693f5f9 41 gboolean check_file_server_time;
6a4a29aa 42
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43 /**
44 * Set if the server handle ETag
45 */
46 gboolean use_etag;
47
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48 /**
49 * The REFERER string to use.
50 * Could be NULL.
51 */
52 gchar *referer;
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53
54 /**
55 * follow_location specifies the number of retries
56 * to follow a redirect while downloading a page.
57 */
58 glong follow_location;
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59
60 /**
61 * File content checker.
62 */
63 VikFileContentCheckerFunc check_file;
6a4a29aa 64
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65 /**
66 * If need to authenticate on download
67 * format: 'username:password'
68 */
69 gchar *user_pass;
70
b529dc9c 71} DownloadMapOptions;
80214df2 72
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73typedef struct {
74 /**
75 * Time sent to server on header If-Modified-Since
76 */
77 time_t time_condition;
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78 /**
79 * Etag sent by server on previous download
80 */
81 char *etag;
82 /**
83 * Etag sent by server on this download
84 */
85 char *new_etag;
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86
87} DownloadFileOptions;
88
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89void a_download_init(void);
90
85611cd9 91/* TODO: convert to Glib */
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92int a_http_download_get_url ( const char *hostname, const char *uri, const char *fn, DownloadMapOptions *opt, void *handle );
93int a_ftp_download_get_url ( const char *hostname, const char *uri, const char *fn, DownloadMapOptions *opt, void *handle );
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94void *a_download_handle_init ();
95void a_download_handle_cleanup ( void *handle );
85611cd9 96
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97gchar *a_download_uri_to_tmp_file ( const gchar *uri, DownloadMapOptions *options );
98
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99/* Error messages returned by download functions */
100enum { DOWNLOAD_NO_ERROR = 0,
101 DOWNLOAD_NO_NEWER_FILE,
102 DOWNLOAD_ERROR };
103
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104G_END_DECLS
105
85611cd9 106#endif