/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2018 Olaf Wintermann. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utils.h"
#include "methods.h"
#include "crypto.h"
#include "session.h"
#include "xml.h"
#include <cx/utils.h>
#include <cx/printf.h>
#include <cx/hash_map.h>
#define xstreq(a,b) xmlStrEqual(BAD_CAST a, BAD_CAST b)
int dav_buffer_seek(CxBuffer *b, curl_off_t offset, int origin) {
return cxBufferSeek(b, offset, origin) == 0 ? 0:CURL_SEEKFUNC_CANTSEEK;
}
/* ----------------------------- PROPFIND ----------------------------- */
CURLcode do_propfind_request(
DavSession *sn,
CxBuffer *request,
CxBuffer *response)
{
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "PROPFIND");
// always try to get information about possible children
int depth = 1;
int maxretry = 2;
struct curl_slist *headers = NULL;
CURLcode ret = 0;
curl_easy_setopt(handle, CURLOPT_UPLOAD, 1);
curl_easy_setopt(handle, CURLOPT_READFUNCTION, cxBufferRead);
curl_easy_setopt(handle, CURLOPT_SEEKFUNCTION, cxBufferSeek);
curl_easy_setopt(handle, CURLOPT_READDATA, request);
curl_easy_setopt(handle, CURLOPT_SEEKDATA, request);
curl_easy_setopt(handle, CURLOPT_INFILESIZE, request->size);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, cxBufferWrite);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, response);
CxMap *respheaders = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 32);
cxDefineDestructor(respheaders, free);
util_capture_header(handle, respheaders);
for(int i=0;i<maxretry;i++) {
if (depth == 1) {
headers = curl_slist_append(headers, "Depth: 1");
} else if (depth == -1) {
headers = curl_slist_append(headers, "Depth: infinity");
} else {
headers = curl_slist_append(headers, "Depth: 0");
}
headers = curl_slist_append(headers, "Content-Type: text/xml");
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
// reset buffers and perform request
request->pos = 0;
response->size = response->pos = 0;
ret = dav_session_curl_perform_buf(sn, request, response, NULL);
curl_slist_free_all(headers);
headers = NULL;
/*
* Handle two cases:
* 1. We communicate with IIS and get a X-MSDAVEXT_Error: 589831
* => try with depth 0 next time, it's not a collection
* 2. Other cases
* => the server handled our request and we can stop requesting
*/
char *msdavexterror;
msdavexterror = cxMapGet(respheaders, cx_hash_key_str("x-msdavext_error"));
int iishack = depth == 1 &&
msdavexterror && !strncmp(msdavexterror, "589831;", 7);
if(iishack) {
depth = 0;
} else {
break;
}
}
// deactivate header capturing and free captured map
util_capture_header(handle, NULL);
cxMapDestroy(respheaders);
return ret;
}
CxBuffer* create_allprop_propfind_request(void) {
CxBuffer *buf = cxBufferCreate(NULL, 512, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:propfind xmlns:D=\"DAV:\">\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:allprop/></D:propfind>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
return buf;
}
CxBuffer* create_cryptoprop_propfind_request(void) {
CxBuffer *buf = cxBufferCreate(NULL, 256, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:propfind xmlns:D=\"DAV:\" xmlns:idav=\"" DAV_NS "\">\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:prop><idav:crypto-prop/></D:prop></D:propfind>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
return buf;
}
CxBuffer* create_propfind_request(DavSession *sn, CxList *properties, char *rootelm, DavBool nocrypt) {
CxBuffer *buf = cxBufferCreate(NULL, 512, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
int add_crypto_name = 1;
int add_crypto_key = 1;
int add_crypto_hash = 1;
char *crypto_ns = "idav";
CxMap *namespaces = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 8);
if(properties) {
CxIterator i = cxListIterator(properties);
cx_foreach(DavProperty*, p, i) {
if(strcmp(p->ns->name, "DAV:")) {
cxMapPut(namespaces, cx_hash_key_str(p->ns->prefix), p->ns);
}
// if the properties list contains the idav properties crypto-name
// and crypto-key, mark them as existent
if(!strcmp(p->ns->name, DAV_NS)) {
if(!strcmp(p->name, "crypto-name")) {
add_crypto_name = 0;
crypto_ns = p->ns->prefix;
} else if(!strcmp(p->name, "crypto-key")) {
add_crypto_key = 0;
crypto_ns = p->ns->prefix;
} else if(!strcmp(p->name, "crypto-hash")) {
add_crypto_hash = 0;
crypto_ns = p->ns->prefix;
}
}
}
}
DavNamespace idav_ns;
if(add_crypto_name && add_crypto_key && DAV_CRYPTO(sn) && !nocrypt) {
idav_ns.prefix = "idav";
idav_ns.name = DAV_NS;
cxMapPut(namespaces, cx_hash_key_str("idav"), &idav_ns);
}
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// write root element and namespaces
cx_bprintf(buf, "<D:%s xmlns:D=\"DAV:\"", rootelm);
CxIterator mapi = cxMapIteratorValues(namespaces);
cx_foreach(DavNamespace*, ns, mapi) {
s = CX_STR(" xmlns:");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(ns->prefix);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("=\"");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(ns->name);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("\"");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR(">\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// default properties
s = CX_STR("<D:prop>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:creationdate />\n<D:getlastmodified />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:getcontentlength />\n<D:getcontenttype />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:resourcetype />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// crypto properties
if(DAV_CRYPTO(sn) && !nocrypt) {
if(add_crypto_name) {
cxBufferPut(buf, '<');
cxBufferPutString(buf, crypto_ns);
s = CX_STR(":crypto-name />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
if(add_crypto_key) {
cxBufferPut(buf, '<');
cxBufferPutString(buf, crypto_ns);
s = CX_STR(":crypto-key />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
if(add_crypto_hash) {
cxBufferPut(buf, '<');
cxBufferPutString(buf, crypto_ns);
s = CX_STR(":crypto-hash />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
}
// extra properties
if(properties) {
CxIterator i = cxListIterator(properties);
cx_foreach(DavProperty*, prop, i) {
s = CX_STR("<");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(prop->ns->prefix);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(":");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(prop->name);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(" />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
}
// end
cx_bprintf(buf, "</D:prop>\n</D:%s>\n", rootelm);
cxMapDestroy(namespaces);
return buf;
}
CxBuffer* create_basic_propfind_request(void) {
CxBuffer *buf = cxBufferCreate(NULL, 512, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:propfind xmlns:D=\"DAV:\" xmlns:i=\"");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(DAV_NS);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("\" >\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// properties
s = CX_STR("<D:prop>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:resourcetype />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<i:crypto-key />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<i:crypto-name />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<i:crypto-hash />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("</D:prop>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// end
s = CX_STR("</D:propfind>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
return buf;
}
PropfindParser* create_propfind_parser(CxBuffer *response, char *url) {
PropfindParser *parser = malloc(sizeof(PropfindParser));
if(!parser) {
return NULL;
}
parser->document = xmlReadMemory(response->space, response->pos, url, NULL, 0);
parser->current = NULL;
if(parser->document) {
xmlNode *xml_root = xmlDocGetRootElement(parser->document);
if(xml_root) {
xmlNode *node = xml_root->children;
while(node) {
// find first response tag
if(node->type == XML_ELEMENT_NODE) {
if(xstreq(node->name, "response")) {
parser->current = node;
break;
}
}
node = node->next;
}
return parser;
} else {
xmlFreeDoc(parser->document);
}
}
free(parser);
return NULL;
}
void destroy_propfind_parser(PropfindParser *parser) {
if(parser->document) {
xmlFreeDoc(parser->document);
}
free(parser);
}
int get_propfind_response(PropfindParser *parser, ResponseTag *result) {
if(parser->current == NULL) {
return 0;
}
char *href = NULL;
int iscollection = 0;
char *crypto_name = NULL; // name set by crypto-name property
char *crypto_key = NULL;
result->properties = cxLinkedListCreateSimple(CX_STORE_POINTERS); // xmlNode list
xmlNode *node = parser->current->children;
while(node) {
if(node->type == XML_ELEMENT_NODE) {
if(xstreq(node->name, "href")) {
xmlNode *href_node = node->children;
if(href_node->type != XML_TEXT_NODE) {
// error
return -1;
}
href = (char*)href_node->content;
} else if(xstreq(node->name, "propstat")) {
xmlNode *n = node->children;
xmlNode *prop_node = NULL;
int ok = 0;
// get the status code
while(n) {
if(n->type == XML_ELEMENT_NODE) {
if(xstreq(n->name, "prop")) {
prop_node = n;
} else if(xstreq(n->name, "status")) {
xmlNode *status_node = n->children;
if(status_node->type != XML_TEXT_NODE) {
// error
return -1;
}
cxstring status_str = cx_str((char*)status_node->content);
if(status_str.length < 13) {
// error
return -1;
}
status_str = cx_strsubsl(status_str, 9, 3);
if(!cx_strcmp(status_str, CX_STR("200"))) {
ok = 1;
}
}
}
n = n->next;
}
// if status is ok, get all properties
if(ok) {
n = prop_node->children;
while(n) {
if(n->type == XML_ELEMENT_NODE) {
cxListAdd(result->properties, n);
if(xstreq(n->name, "resourcetype")) {
if(parse_resource_type(n)) {
iscollection = TRUE;
}
} else if(xstreq(n->ns->href, DAV_NS)) {
if(xstreq(n->name, "crypto-name")) {
crypto_name = util_xml_get_text(n);
} else if(xstreq(n->name, "crypto-key")) {
crypto_key = util_xml_get_text(n);
}
}
}
n = n->next;
}
}
}
}
node = node->next;
}
result->href = util_url_path(href);
result->iscollection = iscollection;
result->crypto_name = crypto_name;
result->crypto_key = crypto_key;
// find next response tag
xmlNode *next = parser->current->next;
while(next) {
if(next->type == XML_ELEMENT_NODE) {
if(xstreq(next->name, "response")) {
break;
}
}
next = next->next;
}
parser->current = next;
return 1;
}
void cleanup_response(ResponseTag *result) {
if(result) {
cxListDestroy(result->properties);
}
}
int hrefeq(DavSession *sn, const char *href1, const char *href2) {
cxmutstr href_s = cx_mutstr(util_url_decode(sn, href1));
cxmutstr href_r = cx_mutstr(util_url_decode(sn, href2));
int ret = 0;
if(!cx_strcmp(cx_strcast(href_s), cx_strcast(href_r))) {
ret = 1;
} else if(href_s.length == href_r.length + 1) {
if(href_s.ptr[href_s.length-1] == '/') {
href_s.length--;
if(!cx_strcmp(cx_strcast(href_s), cx_strcast(href_r))) {
ret = 1;
}
}
} else if(href_r.length == href_s.length + 1) {
if(href_r.ptr[href_r.length-1] == '/') {
href_r.length--;
if(!cx_strcmp(cx_strcast(href_s), cx_strcast(href_r))) {
ret = 1;
}
}
}
free(href_s.ptr);
free(href_r.ptr);
return ret;
}
DavResource* parse_propfind_response(DavSession *sn, DavResource *root, CxBuffer *response) {
char *url = NULL;
curl_easy_getinfo(sn->handle, CURLINFO_EFFECTIVE_URL, &url);
if(!root) {
printf("methods.c: TODO: remove\n");
root = dav_resource_new_href(sn, util_url_path(url)); // TODO: remove
}
//printf("%.*s\n\n", response->size, response->space);
xmlDoc *doc = xmlReadMemory(response->space, response->size, url, NULL, 0);
if(!doc) {
// TODO: free stuff
sn->error = DAV_ERROR;
return NULL;
}
xmlNode *xml_root = xmlDocGetRootElement(doc);
xmlNode *node = xml_root->children;
while(node) {
if(node->type == XML_ELEMENT_NODE) {
if(xstreq(node->name, "response")) {
parse_response_tag(root, node);
}
}
node = node->next;
}
xmlFreeDoc(doc);
return root;
}
DavResource* response2resource(DavSession *sn, ResponseTag *response, char *parent_path) {
// create resource
char *name = NULL;
DavKey *key = NULL;
if(DAV_DECRYPT_NAME(sn) && response->crypto_name && (key = dav_context_get_key(sn->context, response->crypto_key))) {
if(!response->crypto_key) {
sn->error = DAV_ERROR;
dav_session_set_errstr(sn, "Missing crypto-key property");
return NULL;
}
name = util_decrypt_str_k(sn, response->crypto_name, key);
if(!name) {
sn->error = DAV_ERROR;
dav_session_set_errstr(sn, "Cannot decrypt resource name");
return NULL;
}
} else {
cxstring resname = cx_str(util_resource_name(response->href));
int nlen = 0;
char *uname = curl_easy_unescape(
sn->handle,
resname.ptr,
resname.length,
&nlen);
name = dav_session_strdup(sn, uname);
curl_free(uname);
}
char *href = dav_session_strdup(sn, response->href);
DavResource *res = NULL;
if(parent_path) {
res = dav_resource_new_full(sn, parent_path, name, href);
} else {
res = dav_resource_new_href(sn, href);
}
dav_session_free(sn, name);
add_properties(res, response);
return res;
}
void add_properties(DavResource *res, ResponseTag *response) {
res->iscollection = response->iscollection;
int decrypt_props = DAV_ENCRYPT_PROPERTIES(res->session);
xmlNode *crypto_prop = NULL;
char *crypto_key = NULL;
// add properties
if(response->properties) {
CxIterator i = cxListIterator(response->properties);
cx_foreach(xmlNode*, prop, i) {
resource_add_property(res, (char*)prop->ns->href, (char*)prop->name, prop->children);
if (decrypt_props &&
prop->children &&
prop->children->type == XML_TEXT_NODE &&
xstreq(prop->ns->href, DAV_NS))
{
if(xstreq(prop->name, "crypto-prop")) {
crypto_prop = prop;
} else if(xstreq(prop->name, "crypto-key")) {
crypto_key = util_xml_get_text(prop);
}
}
}
}
if(crypto_prop && crypto_key) {
char *crypto_prop_content = util_xml_get_text(crypto_prop);
DavKey *key = dav_context_get_key(res->session->context, crypto_key);
if(crypto_prop_content) {
CxMap *cprops = parse_crypto_prop_str(res->session, key, crypto_prop_content);
resource_set_crypto_properties(res, cprops);
}
}
set_davprops(res);
}
int parse_response_tag(DavResource *resource, xmlNode *node) {
DavSession *sn = resource->session;
//DavResource *res = resource;
DavResource *res = NULL;
const char *href = NULL;
CxList *properties = cxLinkedListCreateSimple(CX_STORE_POINTERS); // xmlNode list
char *crypto_name = NULL; // name set by crypto-name property
char *crypto_key = NULL;
int iscollection = 0; // TODO: remove
node = node->children;
while(node) {
if(node->type == XML_ELEMENT_NODE) {
if(xstreq(node->name, "href")) {
xmlNode *href_node = node->children;
if(href_node->type != XML_TEXT_NODE) {
// error
sn->error = DAV_ERROR;
return 1;
}
//char *href = (char*)href_node->content;
href = util_url_path((const char*)href_node->content);
char *href_s = util_url_decode(resource->session, href);
char *href_r = util_url_decode(resource->session, resource->href);
if(hrefeq(sn, href_s, href_r)) {
res = resource;
}
free(href_s);
free(href_r);
} else if(xstreq(node->name, "propstat")) {
xmlNode *n = node->children;
xmlNode *prop_node = NULL;
int ok = 0;
// get the status code
while(n) {
if(n->type == XML_ELEMENT_NODE) {
if(xstreq(n->name, "prop")) {
prop_node = n;
} else if(xstreq(n->name, "status")) {
xmlNode *status_node = n->children;
if(status_node->type != XML_TEXT_NODE) {
sn->error = DAV_ERROR;
return 1;
}
cxstring status_str = cx_str((char*)status_node->content);
if(status_str.length < 13) {
sn->error = DAV_ERROR;
return 1;
}
status_str = cx_strsubsl(status_str, 9, 3);
if(!cx_strcmp(status_str, CX_STR("200"))) {
ok = 1;
}
}
}
n = n->next;
}
// if status is ok, get all properties
if(ok) {
n = prop_node->children;
while(n) {
if(n->type == XML_ELEMENT_NODE) {
cxListAdd(properties, n);
if(xstreq(n->name, "resourcetype")) {
if(parse_resource_type(n)) {
iscollection = TRUE;
}
} else if(n->ns && xstreq(n->ns->href, DAV_NS)) {
if(xstreq(n->name, "crypto-name")) {
crypto_name = util_xml_get_text(n);
} else if(xstreq(n->name, "crypto-key")) {
crypto_key = util_xml_get_text(n);
}
}
}
n = n->next;
}
}
}
}
node = node->next;
}
if(!res) {
// create new resource object
char *name = NULL;
if(DAV_DECRYPT_NAME(sn) && crypto_name) {
if(!crypto_key) {
sn->error = DAV_ERROR;
dav_session_set_errstr(sn, "Missing crypto-key property");
return -1;
}
name = util_decrypt_str(sn, crypto_name, crypto_key);
if(!name) {
sn->error = DAV_ERROR;
dav_session_set_errstr(sn, "Cannot decrypt resource name");
return -1;
}
} else {
cxstring resname = cx_str(util_resource_name(href));
int nlen = 0;
char *uname = curl_easy_unescape(
sn->handle,
resname.ptr,
resname.length,
&nlen);
name = dav_session_strdup(sn, uname);
curl_free(uname);
}
char *href_cp = dav_session_strdup(sn, href);
res = dav_resource_new_full(sn, resource->path, name, href_cp);
dav_session_free(sn, name);
}
res->iscollection = iscollection;
// add properties
int decrypt_props = DAV_ENCRYPT_PROPERTIES(res->session);
xmlNode *crypto_prop = NULL;
CxIterator i = cxListIterator(properties);
cx_foreach(xmlNode*, prop, i) {
if(!prop->ns) {
continue;
}
resource_add_property(res, (char*)prop->ns->href, (char*)prop->name, prop->children);
if (decrypt_props &&
prop->children &&
prop->children->type == XML_TEXT_NODE &&
xstreq(prop->ns->href, DAV_NS))
{
if(xstreq(prop->name, "crypto-prop")) {
crypto_prop = prop;
}
}
}
cxListDestroy(properties);
if(crypto_prop && crypto_key) {
char *crypto_prop_content = util_xml_get_text(crypto_prop);
DavKey *key = dav_context_get_key(res->session->context, crypto_key);
if(crypto_prop_content && key) {
CxMap *cprops = parse_crypto_prop_str(res->session, key, crypto_prop_content);
resource_set_crypto_properties(res, cprops);
}
}
set_davprops(res);
if(res != resource) {
resource_add_child(resource, res);
}
return 0;
}
void set_davprops(DavResource *res) {
char *cl = dav_get_string_property_ns(res, "DAV:", "getcontentlength");
char *ct = dav_get_string_property_ns(res, "DAV:", "getcontenttype");
char *cd = dav_get_string_property_ns(res, "DAV:", "creationdate");
char *lm = dav_get_string_property_ns(res, "DAV:", "getlastmodified");
res->contenttype = ct;
if(cl) {
char *end = NULL;
res->contentlength = strtoull(cl, &end, 0);
}
res->creationdate = util_parse_creationdate(cd);
res->lastmodified = util_parse_lastmodified(lm);
}
int parse_resource_type(xmlNode *node) {
int collection = FALSE;
xmlNode *c = node->children;
while(c) {
if(c->type == XML_ELEMENT_NODE) {
if(xstreq(c->ns->href, "DAV:") && xstreq(c->name, "collection")) {
collection = TRUE;
break;
}
}
c = c->next;
}
return collection;
}
/* ----------------------------- PROPPATCH ----------------------------- */
CURLcode do_proppatch_request(
DavSession *sn,
char *lock,
CxBuffer *request,
CxBuffer *response)
{
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "PROPPATCH");
struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Content-Type: text/xml");
if(lock) {
char *url = NULL;
curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
char *ltheader = cx_asprintf("If: <%s> (<%s>)", url, lock).ptr;
headers = curl_slist_append(headers, ltheader);
free(ltheader);
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
}
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(handle, CURLOPT_UPLOAD, 1);
curl_easy_setopt(handle, CURLOPT_READFUNCTION, cxBufferRead);
curl_easy_setopt(handle, CURLOPT_SEEKFUNCTION, cxBufferSeek);
curl_easy_setopt(handle, CURLOPT_READDATA, request);
curl_easy_setopt(handle, CURLOPT_SEEKDATA, request);
curl_easy_setopt(handle, CURLOPT_INFILESIZE, request->size);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, cxBufferWrite);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, response);
cxBufferSeek(request, 0, SEEK_SET);
CURLcode ret = dav_session_curl_perform_buf(sn, request, response, NULL);
curl_slist_free_all(headers);
//printf("proppatch: \n%.*s\n", request->size, request->space);
return ret;
}
CxBuffer* create_proppatch_request(DavResourceData *data) {
CxBuffer *buf = cxBufferCreate(NULL, 512, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
CxMap *namespaces = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 8);
cxDefineDestructor(namespaces, free);
{
char prefix[8];
int pfxnum = 0;
if (data->set && cxListSize(data->set) > 0) {
CxIterator i = cxListIterator(data->set);
cx_foreach(DavProperty*, p, i) {
if (strcmp(p->ns->name, "DAV:")) {
snprintf(prefix, 8, "x%d", pfxnum++);
cxMapPut(namespaces, cx_hash_key_str(p->ns->name), strdup(prefix));
}
}
}
if (data->remove && cxListSize(data->remove) > 0) {
CxIterator i = cxListIterator(data->remove);
cx_foreach(DavProperty*, p, i) {
if (strcmp(p->ns->name, "DAV:")) {
snprintf(prefix, 8, "x%d", pfxnum++);
cxMapPut(namespaces, cx_hash_key_str(p->ns->name), strdup(prefix));
}
}
}
}
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// write root element and namespaces
s = CX_STR("<D:propertyupdate xmlns:D=\"DAV:\"");
cxBufferWrite(s.ptr, 1, s.length, buf);
CxIterator mapi = cxMapIterator(namespaces);
cx_foreach(CxMapEntry*, entry, mapi) {
s = CX_STR(" xmlns:");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(entry->value);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("=\"");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_strn(entry->key->data, entry->key->len);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("\"");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR(">\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
if(data->set) {
s = CX_STR("<D:set>\n<D:prop>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
CxIterator i = cxListIterator(data->set);
cx_foreach(DavProperty*, property, i) {
char *prefix = cxMapGet(namespaces, cx_hash_key_str(property->ns->name));
if(!prefix) {
prefix = "D";
}
// begin tag
s = CX_STR("<");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(prefix);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(":");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(property->name);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(">");
cxBufferWrite(s.ptr, 1, s.length, buf);
// content
DavXmlNode *content = property->value;
if(content->type == DAV_XML_TEXT && !content->next) {
cxBufferWrite(content->content, 1, content->contentlength, buf);
} else {
dav_print_node(buf, (cx_write_func)cxBufferWrite, namespaces, content);
}
// end tag
s = CX_STR("</");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(prefix);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(":");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(property->name);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(">\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR("</D:prop>\n</D:set>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
if(data->remove) {
s = CX_STR("<D:remove>\n<D:prop>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
CxIterator i = cxListIterator(data->remove);
cx_foreach(DavProperty*, property, i) {
char *prefix = cxMapGet(namespaces, cx_hash_key_str(property->ns->name));
s = CX_STR("<");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(prefix);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(":");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = cx_str(property->name);
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR(" />\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR("</D:prop>\n</D:remove>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR("</D:propertyupdate>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
// cleanup namespace map
cxMapDestroy(namespaces);
return buf;
}
CxBuffer* create_crypto_proppatch_request(DavSession *sn, DavKey *key, const char *name, const char *hash) {
CxBuffer *buf = cxBufferCreate(NULL, 512, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:propertyupdate xmlns:D=\"DAV:\" xmlns:idav=\"" DAV_NS "\">\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:set>\n<D:prop>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
if(DAV_ENCRYPT_NAME(sn)) {
s = CX_STR("<idav:crypto-name>");
cxBufferWrite(s.ptr, 1, s.length, buf);
char *crname = aes_encrypt(name, strlen(name), key);
cxBufferPutString(buf, crname);
free(crname);
s = CX_STR("</idav:crypto-name>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR("<idav:crypto-key>");
cxBufferWrite(s.ptr, 1, s.length, buf);
cxBufferPutString(buf, key->name);
s = CX_STR("</idav:crypto-key>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
if(hash) {
s = CX_STR("<idav:crypto-hash>");
cxBufferWrite(s.ptr, 1, s.length, buf);
cxBufferPutString(buf, hash);
s = CX_STR("</idav:crypto-hash>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
}
s = CX_STR("</D:prop>\n</D:set>\n</D:propertyupdate>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
return buf;
}
/* ----------------------------- PUT ----------------------------- */
static size_t dummy_write(void *buf, size_t s, size_t n, void *data) {
//fwrite(buf, s, n, stdout);
return s*n;
}
CURLcode do_put_request(DavSession *sn, char *lock, DavBool create, void *data, dav_read_func read_func, dav_seek_func seek_func, size_t length) {
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, NULL);
curl_easy_setopt(handle, CURLOPT_UPLOAD, 1L);
// clear headers
struct curl_slist *headers = NULL;
if(lock) {
char *url = NULL;
curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
char *ltheader = NULL;
if(create) {
url = util_parent_path(url);
ltheader = cx_asprintf("If: <%s> (<%s>)", url, lock).ptr;
free(url);
} else {
ltheader = cx_asprintf("If: <%s> (<%s>)", url, lock).ptr;
}
headers = curl_slist_append(headers, ltheader);
free(ltheader);
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
}
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
CxBuffer *buf = NULL;
if(!read_func) {
buf = cxBufferCreate(data, length, cxDefaultAllocator, 0);
buf->size = length;
data = buf;
read_func = (dav_read_func)cxBufferRead;
curl_easy_setopt(handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t)length);
} else if(length == 0) {
headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
curl_easy_setopt(handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t)-1);
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
} else {
curl_easy_setopt(handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t)length);
}
curl_easy_setopt(handle, CURLOPT_READFUNCTION, read_func);
curl_easy_setopt(handle, CURLOPT_SEEKFUNCTION, seek_func);
curl_easy_setopt(handle, CURLOPT_SEEKDATA, data);
curl_easy_setopt(handle, CURLOPT_READDATA, data);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, dummy_write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, NULL);
CURLcode ret = dav_session_curl_perform(sn, NULL);
curl_slist_free_all(headers);
if(buf) {
cxBufferFree(buf);
}
return ret;
}
CURLcode do_delete_request(DavSession *sn, char *lock, CxBuffer *response) {
CURL *handle = sn->handle;
struct curl_slist *headers = NULL;
if(lock) {
char *url = NULL;
curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
char *ltheader = cx_asprintf("If: <%s> (<%s>)", url, lock).ptr;
headers = curl_slist_append(headers, ltheader);
free(ltheader);
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
} else {
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, NULL);
}
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "DELETE");
curl_easy_setopt(handle, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, cxBufferWrite);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, response);
CURLcode ret = dav_session_curl_perform(sn, NULL);
curl_slist_free_all(headers);
return ret;
}
CURLcode do_mkcol_request(DavSession *sn, char *lock) {
CURL *handle = sn->handle;
struct curl_slist *headers = NULL;
if(lock) {
char *url = NULL;
curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
url = util_parent_path(url);
char *ltheader = cx_asprintf("If: <%s> (<%s>)", url, lock).ptr;
free(url);
headers = curl_slist_append(headers, ltheader);
free(ltheader);
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
} else {
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, NULL);
}
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "MKCOL");
curl_easy_setopt(handle, CURLOPT_PUT, 0L);
curl_easy_setopt(handle, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, dummy_write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, NULL);
CURLcode ret = dav_session_curl_perform(sn, NULL);
curl_slist_free_all(headers);
return ret;
}
CURLcode do_head_request(DavSession *sn) {
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "HEAD");
curl_easy_setopt(handle, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(handle, CURLOPT_NOBODY, 1L);
// clear headers
struct curl_slist *headers = NULL;
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, dummy_write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, NULL);
CURLcode ret = dav_session_curl_perform(sn, NULL);
curl_easy_setopt(handle, CURLOPT_NOBODY, 0L);
return ret;
}
CURLcode do_copy_move_request(DavSession *sn, char *dest, char *lock, DavBool copy, DavBool override) {
CURL *handle = sn->handle;
if(copy) {
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "COPY");
} else {
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "MOVE");
}
curl_easy_setopt(handle, CURLOPT_PUT, 0L);
curl_easy_setopt(handle, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, dummy_write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, NULL);
struct curl_slist *headers = NULL;
if(lock) {
char *url = NULL;
curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
char *ltheader = cx_asprintf("If: <%s> (<%s>)", url, lock).ptr;
headers = curl_slist_append(headers, ltheader);
free(ltheader);
}
//cxstring deststr = ucx_sprintf("Destination: %s", dest);
cxmutstr deststr = cx_strcat(2, CX_STR("Destination: "), cx_str(dest));
headers = curl_slist_append(headers, deststr.ptr);
if(override) {
headers = curl_slist_append(headers, "Overwrite: T");
} else {
headers = curl_slist_append(headers, "Overwrite: F");
}
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
CURLcode ret = dav_session_curl_perform(sn, NULL);
free(deststr.ptr);
curl_slist_free_all(headers);
headers = NULL;
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
return ret;
}
CxBuffer* create_lock_request(void) {
CxBuffer *buf = cxBufferCreate(NULL, 512, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
cxstring s;
s = CX_STR("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("<D:lockinfo xmlns:D=\"DAV:\">\n"
"<D:lockscope><D:exclusive/></D:lockscope>\n"
"<D:locktype><D:write/></D:locktype>\n"
"<D:owner><D:href>http://davutils.org/libidav/</D:href></D:owner>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
s = CX_STR("</D:lockinfo>\n");
cxBufferWrite(s.ptr, 1, s.length, buf);
return buf;
}
int parse_lock_response(DavSession *sn, CxBuffer *response, LockDiscovery *lock) {
lock->locktoken = NULL;
lock->timeout = NULL;
xmlDoc *doc = xmlReadMemory(response->space, response->size, NULL, NULL, 0);
if(!doc) {
sn->error = DAV_ERROR;
return -1;
}
char *timeout = NULL;
char *locktoken = NULL;
int ret = -1;
xmlNode *xml_root = xmlDocGetRootElement(doc);
DavBool lockdiscovery = 0;
if(xml_root) {
xmlNode *node = xml_root->children;
while(node) {
if(node->type == XML_ELEMENT_NODE) {
if(xstreq(node->name, "lockdiscovery")) {
node = node->children;
lockdiscovery = 1;
continue;
}
if(xstreq(node->name, "activelock")) {
node = node->children;
continue;
}
if(lockdiscovery) {
if(xstreq(node->name, "timeout")) {
timeout = util_xml_get_text(node);
} else if(xstreq(node->name, "locktoken")) {
xmlNode *n = node->children;
while(n) {
if(xstreq(n->name, "href")) {
locktoken = util_xml_get_text(n);
break;
}
n = n->next;
}
}
}
}
node = node->next;
}
}
if(timeout && locktoken) {
lock->timeout = strdup(timeout);
lock->locktoken = strdup(locktoken);
ret = 0;
}
xmlFreeDoc(doc);
return ret;
}
CURLcode do_lock_request(DavSession *sn, CxBuffer *request, CxBuffer *response, time_t timeout) {
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "LOCK");
curl_easy_setopt(handle, CURLOPT_UPLOAD, 1L);
request->pos = 0;
// clear headers
struct curl_slist *headers = NULL;
if(timeout != 0) {
cxmutstr thdr;
if(timeout < 0) {
thdr = cx_asprintf("%s", "Timeout: Infinite");
} else {
thdr = cx_asprintf("Timeout: Second-%u", (unsigned int)timeout);
}
headers = curl_slist_append(headers, thdr.ptr);
free(thdr.ptr);
}
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(handle, CURLOPT_UPLOAD, 1);
curl_easy_setopt(handle, CURLOPT_READFUNCTION, cxBufferRead);
curl_easy_setopt(handle, CURLOPT_SEEKFUNCTION, cxBufferSeek);
curl_easy_setopt(handle, CURLOPT_READDATA, request);
curl_easy_setopt(handle, CURLOPT_SEEKDATA, request);
curl_easy_setopt(handle, CURLOPT_INFILESIZE, request->size);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, cxBufferWrite);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, response);
CURLcode ret = dav_session_curl_perform_buf(sn, request, response, NULL);
if(headers) {
curl_slist_free_all(headers);
}
return ret;
}
CURLcode do_unlock_request(DavSession *sn, char *locktoken) {
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "UNLOCK");
curl_easy_setopt(handle, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, dummy_write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, NULL);
// set lock-token header
cxmutstr ltheader = cx_asprintf("Lock-Token: <%s>", locktoken);
struct curl_slist *headers = curl_slist_append(NULL, ltheader.ptr);
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
CURLcode ret = dav_session_curl_perform(sn, NULL);
curl_slist_free_all(headers);
free(ltheader.ptr);
return ret;
}
CURLcode do_simple_request(DavSession *sn, char *method, char *locktoken) {
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, method);
curl_easy_setopt(handle, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, dummy_write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, NULL);
// set lock-token header
cxmutstr ltheader;
struct curl_slist *headers = NULL;
if(locktoken) {
ltheader = cx_asprintf("Lock-Token: <%s>", locktoken);
headers = curl_slist_append(NULL, ltheader.ptr);
}
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
CURLcode ret = dav_session_curl_perform(sn, NULL);
if(locktoken) {
curl_slist_free_all(headers);
free(ltheader.ptr);
}
return ret;
}
CURLcode do_report_request(DavSession *sn, CxBuffer *request, CxBuffer *response) {
CURL *handle = sn->handle;
curl_easy_setopt(handle, CURLOPT_CUSTOMREQUEST, "REPORT");
curl_easy_setopt(handle, CURLOPT_UPLOAD, 1);
curl_easy_setopt(handle, CURLOPT_READFUNCTION, cxBufferRead);
curl_easy_setopt(handle, CURLOPT_SEEKFUNCTION, cxBufferSeek);
curl_easy_setopt(handle, CURLOPT_READDATA, request);
curl_easy_setopt(handle, CURLOPT_SEEKDATA, request);
curl_easy_setopt(handle, CURLOPT_INFILESIZE, request->size);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, cxBufferWrite);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, response);
struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Content-Type: text/xml");
curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers);
request->pos = 0;
response->size = response->pos = 0;
CURLcode ret = dav_session_curl_perform_buf(sn, request, response, NULL);
curl_slist_free_all(headers);
return ret;
}