1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2018 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32
33 #include "versioning.h"
34
35 #include "methods.h"
36 #include "utils.h"
37 #include "session.h"
38
39 static int basic_deltav_op(DavResource *res, char *method) {
40 DavSession *sn = res->session;
41 CURL *handle = sn->handle;
42 util_set_url(sn, dav_resource_get_href(res));
43
44 DavLock *lock = dav_get_lock(res->session, res->path);
45 char *locktoken = lock ? lock->token : NULL;
46
47 CURLcode ret = do_simple_request(sn, method, locktoken);
48 long status = 0;
49 curl_easy_getinfo (handle, CURLINFO_RESPONSE_CODE, &status);
50 if(!(ret == CURLE_OK && (status >= 200 && status < 300))) {
51 dav_session_set_error(sn, ret, status);
52 return 1;
53 }
54 return 0;
55 }
56
57 int dav_versioncontrol(DavResource *res) {
58 return basic_deltav_op(res, "VERSION-CONTROL");
59 }
60
61 int dav_checkout(DavResource *res) {
62 return basic_deltav_op(res, "CHECKOUT");
63 }
64
65 int dav_checkin(DavResource *res) {
66 return basic_deltav_op(res, "CHECKIN");
67 }
68
69 int dav_uncheckout(DavResource *res) {
70 return basic_deltav_op(res, "UNCHECKOUT");
71 }
72
73 DavResource* dav_versiontree(DavResource *res, char *properties) {
74 DavSession *sn = res->session;
75 util_set_url(sn, dav_resource_get_href(res));
76
77 CxList *proplist = NULL;
78 if(properties) {
79 proplist = parse_properties_string(sn->context, cx_str(properties));
80
81 // check if the list already contains a D:version-name property
82 int add_vname = 1;
83 CxIterator i = cxListIterator(proplist);
84 cx_foreach(DavProperty *, p, i) {
85 if(!strcmp(p->ns->name, "DAV:") && !strcmp(p->name, "version-name")) {
86 add_vname = 0;
87 break;
88 }
89 }
90 if(add_vname) {
91 // we need at least the D:version-name prop
92 DavProperty p;
93 p.ns = dav_get_namespace(sn->context, "D");
94 p.name = strdup("version-name");
95 p.value = NULL;
96 cxListInsert(proplist, 0, &p);
97 }
98 }
99
100
101
102 // create a version-tree request, which is almost the same as propfind
103 CxBuffer *rqbuf = create_propfind_request(sn, proplist, "version-tree", 1);
104 CxBuffer *rpbuf = cxBufferCreate(NULL, 4096, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
105
106 // do the request
107 CURLcode ret = do_report_request(sn, rqbuf, rpbuf);
108 long status = 0;
109 curl_easy_getinfo (sn->handle, CURLINFO_RESPONSE_CODE, &status);
110 int error = 0;
111 DavResource *versions = NULL;
112 if(ret == CURLE_OK && status == 207) {
113 sn->error = DAV_OK;
114
115 // parse multistatus response
116 PropfindParser *parser = create_propfind_parser(rpbuf, NULL);
117 if(parser) {
118 DavResource *list_end = NULL;
119
120 ResponseTag response;
121 int r;
122
123 // we don't want name decryption for version resources
124 int snflags = sn->flags;
125 sn->flags = 0;
126 while((r = get_propfind_response(parser, &response)) != 0) {
127 if(r == -1) {
128 res->session->error = DAV_ERROR;
129 error = 1;
130 break;
131 }
132 DavResource *v = response2resource(sn, &response, NULL);
133 // add version to list
134 if(!versions) {
135 versions = v;
136 } else {
137 list_end->next = v;
138 }
139 list_end = v;
140
141 cleanup_response(&response);
142 }
143 sn->flags = snflags;
144
145 destroy_propfind_parser(parser);
146 } else {
147 sn->error = DAV_ERROR;
148 error = 1;
149 }
150 } else {
151 dav_session_set_error(sn, ret, status);
152 error = 1;
153 }
154
155 // cleanup
156 if(proplist) {
157 CxIterator i = cxListIterator(proplist);
158 cx_foreach(DavProperty*, p, i) {
159 free(p->name);
160 }
161 cxListDestroy(proplist);
162 }
163
164 if(error && versions) {
165 DavResource *cur = versions;
166 while(cur) {
167 DavResource *next = cur->next;
168 dav_resource_free(cur);
169 cur = next;
170 }
171 versions = NULL;
172 }
173
174 return versions;
175 }
176