src/server/webdav/parser.c

changeset 85
b62e77d8e80c
child 87
bdec069d2239
equal deleted inserted replaced
84:afd57ce39ec9 85:b62e77d8e80c
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2013 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 <unistd.h>
32
33 #include "parser.h"
34
35
36 void xmlerrorfnc(void * ctx, const char * msg, ... ) {
37 // nothing
38 }
39
40 static int xinit = 0;
41
42 PropfindRequest* dav_parse_propfind2(
43 Session *sn,
44 Request *rq,
45 char *xml,
46 size_t len)
47 {
48 if(!xinit) {
49 xmlGenericErrorFunc fnc = xmlerrorfnc;
50 initGenericErrorDefaultFunc(&fnc);
51 xinit = 1;
52 }
53
54 PropfindRequest *davrq = (PropfindRequest*)pool_calloc(
55 sn->pool,
56 1,
57 sizeof(PropfindRequest));
58 davrq->nsmap = xmlnsmap_create(sn->pool);
59 xmlnsmap_put(davrq->nsmap, (char*)"DAV:");
60 davrq->allprop = 0;
61 davrq->propname = 0;
62 davrq->prop = 0;
63 davrq->properties = NULL;
64 davrq->forbiddenProps = NULL;
65 davrq->notFoundProps = NULL;
66 davrq->mgrdata = NULL;
67
68
69 xmlTextReaderPtr reader = xmlReaderForMemory(xml, len, NULL, NULL, 0);
70 int r = 0;
71
72 if(!reader) {
73 fprintf(stderr, "Cannot create xmlReader\n");
74 return davrq;
75 }
76
77 PropfindParser *parser = pool_malloc(sn->pool, sizeof(PropfindParser));
78 parser->pool = sn->pool;
79 parser->rq = davrq;
80 parser->property = NULL;
81 parser->davPropTag = 0;
82
83 while((r = xmlTextReaderRead(reader)) == 1) {
84 int nodetype = xmlTextReaderNodeType(reader);
85 const xmlChar *name = xmlTextReaderConstLocalName(reader);
86 if(nodetype == XML_READER_TYPE_ELEMENT) {
87 if(propfind_begin_elm(parser, reader)) {
88 fprintf(stderr, "propfind xml error\n");
89 break;
90 }
91 } else if(nodetype == XML_READER_TYPE_END_ELEMENT) {
92 if(propfind_end_elm(parser, reader)) {
93 fprintf(stderr, "propfind xml error\n");
94 break;
95 }
96 }
97 }
98
99 pool_free(sn->pool, parser);
100
101 return davrq;
102 }
103
104 int propfind_begin_elm(PropfindParser *p, xmlTextReaderPtr elm) {
105 pool_handle_t *pool = p->pool;
106 const xmlChar *ns = xmlTextReaderConstNamespaceUri(elm);
107 const xmlChar *name = xmlTextReaderConstLocalName(elm);
108
109 if(ns == NULL) {
110 fprintf(stderr, "ERROR: namespace is null!\n");
111 return -1;
112 }
113
114 int dav_ns = xstreq(ns, "DAV:") ? 1 : 0;
115
116 if(dav_ns && xstreq(name, "allprop")) {
117 p->rq->allprop = 1;
118 } else if(dav_ns && xstreq(name, "prop")) {
119 p->davPropTag = 1;
120 } else if(p->davPropTag && !p->property && !p->rq->allprop) {
121 DavProperty *property = pool_malloc(pool, sizeof(DavProperty));
122 size_t nslen = strlen(ns);
123 size_t namelen = strlen(name);
124 if(nslen > 0) {
125 property->xmlns = xmlnsmap_put(p->rq->nsmap, (char*)ns);
126 } else {
127 property->xmlns = NULL;
128 }
129
130 property->name = pool_malloc(pool, namelen + 1);
131 property->name[namelen] = 0;
132 memcpy(property->name, name, namelen);
133
134 // add property to DavRequest
135 UcxDlist *elm = pool_malloc(pool, sizeof(UcxDlist));
136 elm->prev = NULL;
137 elm->next = NULL;
138 elm->data = property;
139 p->rq->properties = ucx_dlist_concat(p->rq->properties, elm);
140 }
141
142 return 0;
143 }
144
145 int propfind_end_elm(PropfindParser *p, xmlTextReaderPtr elm) {
146 pool_handle_t *pool = p->pool;
147 const xmlChar *ns = xmlTextReaderConstNamespaceUri(elm);
148 const xmlChar *name = xmlTextReaderConstLocalName(elm);
149
150 if(ns == NULL) {
151 fprintf(stderr, "ERROR: namespace is null!\n");
152 return -1;
153 }
154
155 // nothing here yet
156
157 return 0;
158 }

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