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nextcloud-desktop/csync/src/csync_owncloud.c

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/*
* libcsync -- a library to sync a directory with another
*
* Copyright (c) 2011 by Andreas Schneider <asn@cryptomilk.org>
* Copyright (c) 2012 by Klaas Freitag <freitag@owncloud.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "csync_owncloud.h"
#include "csync_owncloud_private.h"
#include <inttypes.h>
#include "csync_private.h"
/*
* helper method to build up a user text for SSL problems, called from the
* verify_sslcert callback.
*/
static void addSSLWarning( char *ptr, const char *warn, int len )
{
char *concatHere = ptr;
int remainingLen = 0;
if( ! (warn && ptr )) return;
remainingLen = len - strlen(ptr);
if( remainingLen <= 0 ) return;
concatHere = ptr + strlen(ptr); /* put the write pointer to the end. */
strncpy( concatHere, warn, remainingLen );
}
/*
* Callback to verify the SSL certificate, called from libneon.
* It analyzes the SSL problem, creates a user information text and passes
* it to the csync callback to ask the user.
*/
#define LEN 4096
static int ssl_callback_by_neon(void *userdata, int failures,
const ne_ssl_certificate *certificate)
{
char problem[LEN];
char buf[MAX(NE_SSL_DIGESTLEN, NE_ABUFSIZ)];
int ret = -1;
const ne_ssl_certificate *cert = certificate;
csync_auth_callback authcb = NULL;
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t*) userdata;
memset( problem, 0, LEN );
while( cert ) {
addSSLWarning( problem, "There are problems with the SSL certificate:\n", LEN );
if( failures & NE_SSL_NOTYETVALID ) {
addSSLWarning( problem, " * The certificate is not yet valid.\n", LEN );
}
if( failures & NE_SSL_EXPIRED ) {
addSSLWarning( problem, " * The certificate has expired.\n", LEN );
}
if( failures & NE_SSL_UNTRUSTED ) {
addSSLWarning( problem, " * The certificate is not trusted!\n", LEN );
}
if( failures & NE_SSL_IDMISMATCH ) {
addSSLWarning( problem, " * The hostname for which the certificate was "
"issued does not match the hostname of the server\n", LEN );
}
if( failures & NE_SSL_BADCHAIN ) {
addSSLWarning( problem, " * The certificate chain contained a certificate other than the server cert\n", LEN );
}
if( failures & NE_SSL_REVOKED ) {
addSSLWarning( problem, " * The server certificate has been revoked by the issuing authority.\n", LEN );
}
if (ne_ssl_cert_digest(cert, buf) == 0) {
addSSLWarning( problem, "Certificate fingerprint: ", LEN );
addSSLWarning( problem, buf, LEN );
addSSLWarning( problem, "\n", LEN );
}
cert = ne_ssl_cert_signedby( cert );
}
addSSLWarning( problem, "Do you want to accept the certificate chain anyway?\nAnswer yes to do so and take the risk: ", LEN );
if( ctx->csync_ctx ) {
authcb = csync_get_auth_callback( ctx->csync_ctx );
}
if( authcb ){
/* call the csync callback */
DEBUG_WEBDAV("Call the csync callback for SSL problems");
memset( buf, 0, NE_ABUFSIZ );
(*authcb) ( problem, buf, NE_ABUFSIZ-1, 1, 0, csync_get_userdata(ctx->csync_ctx) );
if( buf[0] == 'y' || buf[0] == 'Y') {
ret = 0;
} else {
DEBUG_WEBDAV("Authentication callback replied %s", buf );
}
}
DEBUG_WEBDAV("## VERIFY_SSL CERT: %d", ret );
return ret;
}
/*
* Authentication callback. Is set by ne_set_server_auth to be called
* from the neon lib to authenticate a request.
*/
static int authentication_callback_by_neon( void *userdata, const char *realm, int attempt,
char *username, char *password)
{
char buf[NE_ABUFSIZ];
csync_auth_callback authcb = NULL;
int re = attempt;
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t*) userdata;
(void) realm;
/* DEBUG_WEBDAV( "Authentication required %s", realm ); */
if( username && password ) {
DEBUG_WEBDAV( "Authentication required %s", username );
if( ctx->dav_session.user ) {
/* allow user without password */
if( strlen( ctx->dav_session.user ) < NE_ABUFSIZ ) {
strcpy( username, ctx->dav_session.user );
}
if( ctx->dav_session.pwd && strlen( ctx->dav_session.pwd ) < NE_ABUFSIZ ) {
strcpy( password, ctx->dav_session.pwd );
}
} else {
authcb = csync_get_auth_callback( ctx->csync_ctx );
if( authcb != NULL ){
/* call the csync callback */
DEBUG_WEBDAV("Call the csync callback for %s", realm );
memset( buf, 0, NE_ABUFSIZ );
(*authcb) ("Enter your username: ", buf, NE_ABUFSIZ-1, 1, 0, csync_get_userdata(ctx->csync_ctx) );
if( strlen(buf) < NE_ABUFSIZ ) {
strcpy( username, buf );
}
memset( buf, 0, NE_ABUFSIZ );
(*authcb) ("Enter your password: ", buf, NE_ABUFSIZ-1, 0, 0, csync_get_userdata(ctx->csync_ctx) );
if( strlen(buf) < NE_ABUFSIZ) {
strcpy( password, buf );
}
} else {
re = 1;
}
}
}
return re;
}
/*
* Authentication callback. Is set by ne_set_proxy_auth to be called
* from the neon lib to authenticate against a proxy. The data to authenticate
* against comes from mirall throught vio_module_init function.
*/
static int proxy_authentication_callback_by_neon( void *userdata, const char *realm, int attempt,
char *username, char *password)
{
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t*) userdata;
(void) realm;
if( ctx->dav_session.proxy_user && strlen( ctx->dav_session.proxy_user ) < NE_ABUFSIZ) {
strcpy( username, ctx->dav_session.proxy_user );
if( ctx->dav_session.proxy_pwd && strlen( ctx->dav_session.proxy_pwd ) < NE_ABUFSIZ) {
strcpy( password, ctx->dav_session.proxy_pwd );
}
}
/* NTLM needs several attempts */
return (attempt < 3) ? 0 : -1;
}
/* Configure the proxy depending on the variables */
static int configureProxy( csync_owncloud_ctx_t *ctx, ne_session *session )
{
int port = 8080;
int re = -1;
if( ! session ) return -1;
if( ! ctx->dav_session.proxy_type ) return 0; /* Go by NoProxy per default */
if( ctx->dav_session.proxy_port > 0 ) {
port = ctx->dav_session.proxy_port;
}
if( c_streq(ctx->dav_session.proxy_type, "NoProxy" )) {
DEBUG_WEBDAV("No proxy configured.");
re = 0;
} else if( c_streq(ctx->dav_session.proxy_type, "DefaultProxy") ||
c_streq(ctx->dav_session.proxy_type, "HttpProxy") ||
c_streq(ctx->dav_session.proxy_type, "HttpCachingProxy") ||
c_streq(ctx->dav_session.proxy_type, "Socks5Proxy")) {
if( ctx->dav_session.proxy_host ) {
DEBUG_WEBDAV("%s at %s:%d", ctx->dav_session.proxy_type, ctx->dav_session.proxy_host, port );
if (c_streq(ctx->dav_session.proxy_type, "Socks5Proxy")) {
ne_session_socks_proxy(session, NE_SOCK_SOCKSV5, ctx->dav_session.proxy_host, port,
ctx->dav_session.proxy_user, ctx->dav_session.proxy_pwd);
} else {
ne_session_proxy(session, ctx->dav_session.proxy_host, port );
}
re = 2;
} else {
DEBUG_WEBDAV("%s requested but no proxy host defined.", ctx->dav_session.proxy_type );
/* we used to try ne_system_session_proxy here, but we should rather err out
to behave exactly like the caller. */
}
} else {
DEBUG_WEBDAV( "Unsupported Proxy: %s", ctx->dav_session.proxy_type );
}
return re;
}
/*
* This hook is called for with the response of a request. Here its checked
* if a Set-Cookie header is there for the PHPSESSID. The key is stored into
* the webdav session to be added to subsequent requests.
*/
static void post_request_hook(ne_request *req, void *userdata, const ne_status *status)
{
const char *set_cookie_header = NULL;
const char *sc = NULL;
char *key = NULL;
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t*) userdata;
if (ctx->dav_session.session_key)
return; /* We already have a session cookie, and we should ignore other ones */
if(!(status && req)) return;
if( status->klass == 2 || status->code == 401 ) {
/* successful request */
set_cookie_header = ne_get_response_header( req, "Set-Cookie" );
if( set_cookie_header ) {
DEBUG_WEBDAV(" Set-Cookie found: %s", set_cookie_header);
/* try to find a ', ' sequence which is the separator of neon if multiple Set-Cookie
* headers are there.
* The following code parses a string like this:
* Set-Cookie: 50ace6bd8a669=p537brtt048jh8srlp2tuep7em95nh9u98mj992fbqc47d1aecp1;
*/
sc = set_cookie_header;
while(sc) {
const char *sc_val = sc;
const char *sc_end = sc_val;
int cnt = 0;
int len = strlen(sc_val); /* The length of the rest of the header string. */
while( cnt < len && *sc_end != ';' && *sc_end != ',') {
cnt++;
sc_end++;
}
if( cnt == len ) {
/* exit: We are at the end. */
sc = NULL;
} else if( *sc_end == ';' ) {
/* We are at the end of the session key. */
int keylen = sc_end-sc_val;
if( key ) {
int oldlen = strlen(key);
key = c_realloc(key, oldlen + 2 + keylen+1);
strcpy(key + oldlen, "; ");
strncpy(key + oldlen + 2, sc_val, keylen);
key[oldlen + 2 + keylen] = '\0';
} else {
key = c_malloc(keylen+1);
strncpy( key, sc_val, keylen );
key[keylen] = '\0';
}
/* now search for a ',' to find a potential other header entry */
while(cnt < len && *sc_end != ',') {
cnt++;
sc_end++;
}
if( cnt < len )
sc = sc_end+2; /* mind the space after the comma */
else
sc = NULL;
} else if( *sc_end == ',' ) {
/* A new entry is to check. */
if( *(sc_end + 1) == ' ') {
sc = sc_end+2;
} else {
/* error condition */
sc = NULL;
}
}
}
}
} else {
DEBUG_WEBDAV("Request failed, don't take session header.");
}
if( key ) {
DEBUG_WEBDAV("----> Session-key: %s", key);
SAFE_FREE(ctx->dav_session.session_key);
ctx->dav_session.session_key = key;
}
}
/*
* this hook is called just after a request has been created, before its sent.
* Here it is used to set the proxy connection header if available.
*/
static void request_created_hook(ne_request *req, void *userdata,
const char *method, const char *requri)
{
// FIXME Can possibly be merged with pre_send_hook
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t *) userdata;
(void) method;
(void) requri;
if( !req ) return;
if(ctx->dav_session.proxy_type) {
/* required for NTLM */
ne_add_request_header(req, "Proxy-Connection", "Keep-Alive");
}
}
/*
* this hook is called just before a request has been sent.
* Here it is used to set the session cookie if available.
*/
static void pre_send_hook(ne_request *req, void *userdata,
ne_buffer *header)
{
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t *) userdata;
if( !req ) return;
if(ctx->dav_session.session_key) {
ne_buffer_concat(header, "Cookie: ", ctx->dav_session.session_key, "\r\n", NULL);
} else {
DEBUG_WEBDAV("csync pre_send_hook We don't have a Auth Cookie (session_key), this is wrong!");
}
}
static int post_send_hook(ne_request *req, void *userdata,
const ne_status *status)
{
const char *location;
csync_owncloud_ctx_t *ctx = (csync_owncloud_ctx_t *) userdata;
(void) status;
location = ne_get_response_header(req, "Location");
if( !location ) return NE_OK;
if( ctx->dav_session.redir_callback ) {
if( ctx->dav_session.redir_callback( ctx->csync_ctx, location ) ) {
return NE_REDIRECT;
} else {
return NE_RETRY;
}
}
return NE_REDIRECT;
}
/*
* Connect to a DAV server
* This function sets the flag _connected if the connection is established
* and returns if the flag is set, so calling it frequently is save.
*/
static int dav_connect(csync_owncloud_ctx_t *ctx, const char *base_url) {
int useSSL = 0;
int rc;
char protocol[6] = {'\0'};
char uaBuf[256];
char *path = NULL;
char *scheme = NULL;
char *host = NULL;
unsigned int port = 0;
int proxystate = -1;
if (ctx->_connected) {
return 0;
}
rc = c_parse_uri( base_url, &scheme,
&ctx->dav_session.user,
&ctx->dav_session.pwd,
&host, &port, &path );
if( rc < 0 ) {
DEBUG_WEBDAV("Failed to parse uri %s", base_url );
goto out;
}
DEBUG_WEBDAV("* scheme %s", scheme );
DEBUG_WEBDAV("* host %s", host );
DEBUG_WEBDAV("* port %u", port );
DEBUG_WEBDAV("* path %s", path );
if( strcmp( scheme, "owncloud" ) == 0 || strcmp( scheme, "http" ) == 0 ) {
strcpy( protocol, "http");
} else if( strcmp( scheme, "ownclouds" ) == 0 || strcmp( scheme, "https") == 0 ) {
strcpy( protocol, "https");
useSSL = 1;
} else {
DEBUG_WEBDAV("Invalid scheme %s, go out here!", scheme );
rc = -1;
goto out;
}
DEBUG_WEBDAV("* user %s", ctx->dav_session.user ? ctx->dav_session.user : "");
if (port == 0) {
port = ne_uri_defaultport(protocol);
}
ctx->dav_session.ctx = ne_session_create( protocol, host, port);
if (ctx->dav_session.ctx == NULL) {
DEBUG_WEBDAV("Session create with protocol %s failed", protocol );
rc = -1;
goto out;
}
if (ctx->dav_session.read_timeout != 0) {
ne_set_read_timeout(ctx->dav_session.ctx, ctx->dav_session.read_timeout);
DEBUG_WEBDAV("Timeout set to %u seconds", ctx->dav_session.read_timeout );
}
// Should never take more than some seconds, 30 is really a max.
ne_set_connect_timeout(ctx->dav_session.ctx, 30);
snprintf( uaBuf, sizeof(uaBuf), "Mozilla/5.0 (%s) csyncoC/%s",
csync_owncloud_get_platform(), CSYNC_STRINGIFY( LIBCSYNC_VERSION ));
ne_set_useragent( ctx->dav_session.ctx, uaBuf);
ne_set_server_auth(ctx->dav_session.ctx, authentication_callback_by_neon, ctx);
if( useSSL ) {
if (!ne_has_support(NE_FEATURE_SSL)) {
DEBUG_WEBDAV("Error: SSL is not enabled.");
rc = -1;
goto out;
}
ne_ssl_trust_default_ca( ctx->dav_session.ctx );
ne_ssl_set_verify( ctx->dav_session.ctx, ssl_callback_by_neon, ctx);
}
/* Hook called when a request is created. It sets the proxy connection header. */
ne_hook_create_request( ctx->dav_session.ctx, request_created_hook, ctx );
/* Hook called after response headers are read. It gets the Session ID. */
ne_hook_post_headers( ctx->dav_session.ctx, post_request_hook, ctx );
/* Hook called before a request is sent. It sets the cookies. */
ne_hook_pre_send( ctx->dav_session.ctx, pre_send_hook, ctx );
/* Hook called after request is dispatched. Used for handling possible redirections. */
ne_hook_post_send( ctx->dav_session.ctx, post_send_hook, ctx );
/* Proxy support */
proxystate = configureProxy( ctx, ctx->dav_session.ctx );
if( proxystate < 0 ) {
DEBUG_WEBDAV("Error: Proxy-Configuration failed.");
} else if( proxystate > 0 ) {
ne_set_proxy_auth( ctx->dav_session.ctx, proxy_authentication_callback_by_neon, ctx );
}
ctx->_connected = 1;
rc = 0;
out:
SAFE_FREE(path);
SAFE_FREE(host);
SAFE_FREE(scheme);
return rc;
}
/*
* result parsing list.
* This function is called to parse the result of the propfind request
* to list directories on the WebDAV server. I takes a single resource
* and fills a resource struct and stores it to the result list which
* is stored in the listdir_context.
*/
static void propfind_results_callback(void *userdata,
const ne_uri *uri,
const ne_prop_result_set *set)
{
struct listdir_context *fetchCtx = userdata;
struct resource *newres = 0;
const ne_status *status = NULL;
char *path = ne_path_unescape( uri->path );
(void) status;
if( ! fetchCtx->target ) {
DEBUG_WEBDAV("error: target must not be zero!" );
return;
}
/* Fill the resource structure with the data about the file */
newres = c_malloc(sizeof(struct resource));
newres->uri = path; /* no need to strdup because ne_path_unescape already allocates */
newres->name = c_basename( path );
fill_webdav_properties_into_resource(newres, set);
/* prepend the new resource to the result list */
newres->next = fetchCtx->list;
fetchCtx->list = newres;
fetchCtx->result_count = fetchCtx->result_count + 1;
/* DEBUG_WEBDAV( "results for URI %s: %d %d", newres->name, (int)newres->size, (int)newres->type ); */
}
/*
* fetches a resource list from the WebDAV server. This is equivalent to list dir.
*/
static struct listdir_context *fetch_resource_list(csync_owncloud_ctx_t *ctx, const char *uri, int depth)
{
struct listdir_context *fetchCtx;
int ret = 0;
ne_propfind_handler *hdl = NULL;
ne_request *request = NULL;
const char *content_type = NULL;
char *curi = NULL;
const ne_status *req_status = NULL;
curi = _cleanPath( uri );
/* The old legacy one-level PROPFIND cache. Also gets filled
by the recursive cache if 'infinity' did not suceed. */
if (ctx->propfind_cache) {
if (c_streq(curi, ctx->propfind_cache->target)) {
DEBUG_WEBDAV("fetch_resource_list Using simple PROPFIND cache %s", curi);
ctx->propfind_cache->ref++;
SAFE_FREE(curi);
return ctx->propfind_cache;
}
}
if( ctx->csync_ctx->callbacks.update_callback ) {
ctx->csync_ctx->callbacks.update_callback(false, curi,
ctx->csync_ctx->callbacks.update_callback_userdata);
}
fetchCtx = c_malloc( sizeof( struct listdir_context ));
if (!fetchCtx) {
errno = ENOMEM;
SAFE_FREE(curi);
return NULL;
}
fetchCtx->list = NULL;
fetchCtx->target = curi;
fetchCtx->currResource = NULL;
fetchCtx->ref = 1;
/* do a propfind request and parse the results in the results function, set as callback */
hdl = ne_propfind_create(ctx->dav_session.ctx, curi, depth);
if(hdl) {
ret = ne_propfind_named(hdl, ls_props, propfind_results_callback, fetchCtx);
request = ne_propfind_get_request( hdl );
req_status = ne_get_status( request );
}
if( ret == NE_OK ) {
fetchCtx->currResource = fetchCtx->list;
/* Check the request status. */
if( req_status && req_status->klass != 2 ) {
set_errno_from_http_errcode(req_status->code);
DEBUG_WEBDAV("ERROR: Request failed: status %d (%s)", req_status->code,
req_status->reason_phrase);
ret = NE_CONNECT;
set_error_message(ctx, req_status->reason_phrase);
}
DEBUG_WEBDAV("Simple propfind result code %d.", req_status ? req_status->code : -1);
} else {
if( ret == NE_ERROR && req_status->code == 404) {
errno = ENOENT;
} else {
set_errno_from_neon_errcode(ctx, ret);
}
}
if( ret == NE_OK ) {
/* Check the content type. If the server has a problem, ie. database is gone or such,
* the content type is not xml but a html error message. Stop on processing if it's
* not XML.
* FIXME: Generate user error message from the reply content.
*/
content_type = ne_get_response_header( request, "Content-Type" );
if( !(content_type && c_streq(content_type, "application/xml; charset=utf-8") ) ) {
DEBUG_WEBDAV("ERROR: Content type of propfind request not XML: %s.",
content_type ? content_type: "<empty>");
errno = ERRNO_WRONG_CONTENT;
set_error_message(ctx, "Server error: PROPFIND reply is not XML formatted!");
ret = NE_CONNECT;
}
}
if( ret != NE_OK ) {
const char *err = NULL;
set_errno_from_neon_errcode(ctx, ret);
err = ne_get_error( ctx->dav_session.ctx );
if(err) {
set_error_message(ctx, err);
}
DEBUG_WEBDAV("WRN: propfind named failed with %d, request error: %s", ret, err ? err : "<nil>");
}
if( hdl )
ne_propfind_destroy(hdl);
if( ret != NE_OK ) {
free_fetchCtx(fetchCtx);
return NULL;
}
free_fetchCtx(ctx->propfind_cache);
ctx->propfind_cache = fetchCtx;
ctx->propfind_cache->ref++;
return fetchCtx;
}
static struct listdir_context *fetch_resource_list_attempts(csync_owncloud_ctx_t *ctx, const char *uri, int depth)
{
int i;
struct listdir_context *fetchCtx = NULL;
for(i = 0; i < 10; ++i) {
fetchCtx = fetch_resource_list(ctx, uri, depth);
if(fetchCtx) break;
/* only loop in case the content is not XML formatted. Otherwise for every
* non successful stat (for non existing directories) its tried 10 times. */
if( errno != ERRNO_WRONG_CONTENT ) break;
DEBUG_WEBDAV("=> Errno after fetch resource list for %s: %d", uri, errno);
DEBUG_WEBDAV(" New attempt %i", i);
}
return fetchCtx;
}
/*
* directory functions
*/
csync_vio_handle_t *owncloud_opendir(CSYNC *ctx, const char *uri) {
struct listdir_context *fetchCtx = NULL;
char *curi = NULL;
DEBUG_WEBDAV("opendir method called on %s", uri );
if (dav_connect( ctx->owncloud_context, uri ) < 0) {
DEBUG_WEBDAV("connection failed");
return NULL;
}
curi = _cleanPath( uri );
if (ctx->owncloud_context->is_first_propfind && !ctx->owncloud_context->dav_session.no_recursive_propfind) {
ctx->owncloud_context->is_first_propfind = false;
// Try to fill it
fill_recursive_propfind_cache(ctx->owncloud_context, uri, curi);
}
if (ctx->owncloud_context->propfind_recursive_cache) {
// Try to fetch from recursive cache (if we have one)
fetchCtx = get_listdir_context_from_recursive_cache(ctx->owncloud_context, curi);
}
SAFE_FREE(curi);
ctx->owncloud_context->is_first_propfind = false;
if (fetchCtx) {
return fetchCtx;
}
/* fetchCtx = fetch_resource_list( uri, NE_DEPTH_ONE ); */
fetchCtx = fetch_resource_list_attempts( ctx->owncloud_context, uri, NE_DEPTH_ONE);
if( !fetchCtx ) {
/* errno is set properly in fetch_resource_list */
DEBUG_WEBDAV("Errno set to %d", errno);
return NULL;
} else {
fetchCtx->currResource = fetchCtx->list;
DEBUG_WEBDAV("opendir returning handle %p (count=%d)", (void*) fetchCtx, fetchCtx->result_count );
return fetchCtx;
}
/* no freeing of curi because its part of the fetchCtx and gets freed later */
}
int owncloud_closedir(CSYNC *ctx, csync_vio_handle_t *dhandle) {
struct listdir_context *fetchCtx = dhandle;
free_fetchCtx(fetchCtx);
(void)ctx;
return 0;
}
csync_vio_file_stat_t *owncloud_readdir(CSYNC *ctx, csync_vio_handle_t *dhandle) {
struct listdir_context *fetchCtx = dhandle;
(void)ctx;
// DEBUG_WEBDAV("owncloud_readdir" );
// DEBUG_WEBDAV("owncloud_readdir %s ", fetchCtx->target);
// DEBUG_WEBDAV("owncloud_readdir %d", fetchCtx->result_count );
// DEBUG_WEBDAV("owncloud_readdir %p %p", fetchCtx->currResource, fetchCtx->list );
if( fetchCtx == NULL) {
/* DEBUG_WEBDAV("An empty dir or at end"); */
return NULL;
}
while( fetchCtx->currResource ) {
resource* currResource = fetchCtx->currResource;
char *escaped_path = NULL;
/* set pointer to next element */
fetchCtx->currResource = fetchCtx->currResource->next;
/* It seems strange: first uri->path is unescaped to escape it in the next step again.
* The reason is that uri->path is not completely escaped (ie. it seems only to have
* spaces escaped), while the fetchCtx->target is fully escaped.
* See http://bugs.owncloud.org/thebuggenie/owncloud/issues/oc-613
*/
escaped_path = ne_path_escape( currResource->uri );
if (ne_path_compare(fetchCtx->target, escaped_path) != 0) {
// Convert the resource for the caller
csync_vio_file_stat_t* lfs = csync_vio_file_stat_new();
resourceToFileStat(lfs, currResource);
SAFE_FREE( escaped_path );
return lfs;
}
/* This is the target URI */
SAFE_FREE( escaped_path );
}
return NULL;
}
char *owncloud_error_string(CSYNC* ctx)
{
return ctx->owncloud_context->dav_session.error_string;
}
int owncloud_commit(CSYNC* ctx) {
if (!ctx->owncloud_context) {
return 0;
}
clear_propfind_recursive_cache(ctx->owncloud_context);
free_fetchCtx(ctx->owncloud_context->propfind_cache);
ctx->owncloud_context->propfind_cache = NULL;
if( ctx->owncloud_context->dav_session.ctx ) {
ne_forget_auth(ctx->owncloud_context->dav_session.ctx);
ne_session_destroy(ctx->owncloud_context->dav_session.ctx );
ctx->owncloud_context->dav_session.ctx = 0;
}
ctx->owncloud_context->is_first_propfind = true;
/* DEBUG_WEBDAV( "********** vio_module_shutdown" ); */
ctx->owncloud_context->dav_session.ctx = 0;
// ne_sock_exit();
ctx->owncloud_context->_connected = 0; /* triggers dav_connect to go through the whole neon setup */
SAFE_FREE( ctx->owncloud_context->dav_session.user );
SAFE_FREE( ctx->owncloud_context->dav_session.pwd );
SAFE_FREE( ctx->owncloud_context->dav_session.session_key);
SAFE_FREE( ctx->owncloud_context->dav_session.error_string );
return 0;
}
void owncloud_destroy(CSYNC* ctx)
{
owncloud_commit(ctx);
SAFE_FREE(ctx->owncloud_context);
ctx->owncloud_context = 0;
}
int owncloud_set_property(CSYNC* ctx, const char *key, void *data) {
#define READ_STRING_PROPERTY(P) \
if (c_streq(key, #P)) { \
SAFE_FREE(ctx->owncloud_context->dav_session.P); \
ctx->owncloud_context->dav_session.P = c_strdup((const char*)data); \
return 0; \
}
READ_STRING_PROPERTY(session_key)
READ_STRING_PROPERTY(proxy_type)
READ_STRING_PROPERTY(proxy_host)
READ_STRING_PROPERTY(proxy_user)
READ_STRING_PROPERTY(proxy_pwd)
#undef READ_STRING_PROPERTY
if (c_streq(key, "proxy_port")) {
ctx->owncloud_context->dav_session.proxy_port = *(int*)(data);
return 0;
}
if (c_streq(key, "read_timeout") || c_streq(key, "timeout")) {
ctx->owncloud_context->dav_session.read_timeout = *(int*)(data);
return 0;
}
if( c_streq(key, "get_dav_session")) {
/* Give the ne_session to the caller */
*(ne_session**)data = ctx->owncloud_context->dav_session.ctx;
return 0;
}
if( c_streq(key, "no_recursive_propfind")) {
ctx->owncloud_context->dav_session.no_recursive_propfind = *(bool*)(data);
return 0;
}
if( c_streq(key, "redirect_callback")) {
if (data) {
csync_owncloud_redirect_callback_t* cb_wrapper = data;
ctx->owncloud_context->dav_session.redir_callback = *cb_wrapper;
} else {
ctx->owncloud_context->dav_session.redir_callback = NULL;
}
}
return -1;
}
void owncloud_init(CSYNC* ctx) {
ctx->owncloud_context = c_malloc( sizeof( struct csync_owncloud_ctx_s ));
ctx->owncloud_context->csync_ctx = ctx; // back reference
ctx->owncloud_context->is_first_propfind = true;
/* Disable it, Mirall can enable it for the first sync (= no DB)*/
ctx->owncloud_context->dav_session.no_recursive_propfind = true;
}
/* vim: set ts=4 sw=4 et cindent: */
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