static ne_buffer *acl_body(ne_acl_entry *right, int count)
{
ne_buffer *body = ne_buffer_create();
int m;
ne_buffer_zappend(body,
"<?xml version=\"1.0\" encoding=\"utf-8\"?>" EOL
"<acl xmlns='DAV:'>" EOL);
for (m = 0; m < count; m++) {
const char *type;
type = (right[m].type == ne_acl_grant ? "grant" : "deny");
ne_buffer_concat(body, "<ace>" EOL "<principal>", NULL);
switch (right[m].apply) {
case ne_acl_all:
ne_buffer_zappend(body, "<all/>" EOL);
break;
case ne_acl_property:
ne_buffer_concat(body, "<property><", right[m].principal,
"/></property>" EOL, NULL);
break;
case ne_acl_href:
ne_buffer_concat(body, "<href>", right[m].principal,
"</href>" EOL, NULL);
break;
}
ne_buffer_concat(body, "</principal>" EOL "<", type, ">" EOL, NULL);
if (right[m].read == 0)
ne_buffer_concat(body,
"<privilege>" "<read/>" "</privilege>" EOL,
NULL);
if (right[m].read_acl == 0)
ne_buffer_concat(body,
"<privilege>" "<read-acl/>" "</privilege>" EOL,
NULL);
if (right[m].write == 0)
ne_buffer_concat(body,
"<privilege>" "<write/>" "</privilege>" EOL,
NULL);
if (right[m].write_acl == 0)
ne_buffer_concat(body,
"<privilege>" "<write-acl/>" "</privilege>" EOL,
NULL);
if (right[m].read_cuprivset == 0)
ne_buffer_concat(body,
"<privilege>"
"<read-current-user-privilege-set/>"
"</privilege>" EOL, NULL);
ne_buffer_concat(body, "</", type, ">" EOL, NULL);
ne_buffer_zappend(body, "</ace>" EOL);
}
ne_buffer_zappend(body, "</acl>" EOL);
return body;
}
int s3_get_bucket(S3 *s3,const char *bucket,
const char *prefix,const char *marker,int max_keys,const char *delimiter,
const S3KeyInfoCallback *key_info_cb)
{
ne_request *req;
int err, retry;
ne_buffer *params;
if(!s3) return -1;
if(!bucket) return -1;
params = ne_buffer_create();
if(prefix) ne_buffer_concat(params,"prefix=",prefix,"/&",NULL);
if(marker) ne_buffer_concat(params,"marker=",marker,"&",NULL);
if(max_keys >= 0) {
char mk[16];
snprintf(mk,16,"%d",max_keys);
mk[15] = 0;
ne_buffer_concat(params,"max_keys=",max_keys,"&",NULL);
}
if(delimiter) ne_buffer_concat(params,"delimiter=",delimiter,"&",NULL);
s3_begin_session(s3);
req = s3_new_request(s3,"GET",bucket,NULL,params->data,NULL);
ne_buffer_destroy(params);
// send to server
do {
err = ne_begin_request(req);
if(err != NE_OK) err = -EIO;
else {
if(ne_get_status(req)->code != 200) {
s3_handle_error_response(s3,req);
err = -EACCES;
} else {
s3->key_info.key_info_cb = key_info_cb;
s3_parse_xml_response(s3,
req,
s3_xml_key_info_startelm,
s3_xml_key_info_cdata,
s3_xml_key_info_endelm,
&s3->key_info
);
}
retry = ne_end_request(req);
}
} while(retry == NE_RETRY);
ne_request_destroy(req);
s3_end_session(s3);
return err;
}
static int buf_concat(void)
{
ne_buffer *s = ne_buffer_create();
ON(s == NULL);
ne_buffer_concat(s, "a", "b", "c", "d", "e", "f", "g", NULL);
ONCMP(s->data, "abcdefg");
ON(ne_buffer_size(s) != 7);
ne_buffer_destroy(s);
return OK;
}
static int buf_concat3(void)
{
ne_buffer *s = ne_buffer_create();
ON(s == NULL);
ne_buffer_zappend(s, "foobar");
ne_buffer_concat(s, "norman", NULL);
ONCMP(s->data, "foobarnorman");
ON(ne_buffer_size(s) != 12);
ne_buffer_destroy(s);
return OK;
}
/*
* 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)
{
(void) userdata;
if( !req ) return;
if(dav_session.session_key) {
ne_buffer_concat(header, "Cookie: ", dav_session.session_key, "\r\n", NULL);
}
}
static int buf_concat2(void)
{
#define RES "alphabetagammadeltaepsilonetatheta"
ne_buffer *s = ne_buffer_create();
ON(s == NULL);
ne_buffer_concat(s, "alpha", "beta", "gamma", "delta", "epsilon",
"eta", "theta", NULL);
ONCMP(s->data, RES);
ON(ne_buffer_size(s) != strlen(RES));
ne_buffer_destroy(s);
return OK;
}
char *ne_uri_unparse(const ne_uri *uri)
{
ne_buffer *buf = ne_buffer_create();
if (uri->scheme) {
ne_buffer_concat(buf, uri->scheme, ":", NULL);
}
if (uri->host) {
ne_buffer_czappend(buf, "//");
if (uri->userinfo) {
ne_buffer_concat(buf, uri->userinfo, "@", NULL);
}
ne_buffer_zappend(buf, uri->host);
if (uri->port > 0
&& (!uri->scheme
|| ne_uri_defaultport(uri->scheme) != uri->port)) {
char str[20];
ne_snprintf(str, 20, ":%d", uri->port);
ne_buffer_zappend(buf, str);
}
}
ne_buffer_zappend(buf, uri->path);
if (uri->query) {
ne_buffer_concat(buf, "?", uri->query, NULL);
}
if (uri->fragment) {
ne_buffer_concat(buf, "#", uri->fragment, NULL);
}
return ne_buffer_finish(buf);
}
static void lk_pre_send(ne_request *r, void *userdata, ne_buffer *req)
{
struct lh_req_cookie *lrc = ne_get_request_private(r, HOOK_ID);
if (lrc->submit != NULL) {
struct lock_list *item;
/* Add in the If header */
ne_buffer_czappend(req, "If:");
for (item = lrc->submit; item != NULL; item = item->next) {
char *uri = ne_uri_unparse(&item->lock->uri);
ne_buffer_concat(req, " <", uri, "> (<",
item->lock->token, ">)", NULL);
ne_free(uri);
}
ne_buffer_czappend(req, "\r\n");
}
}
static void ah_pre_send(ne_request *r, void *cookie, ne_buffer *request)
{
auth_session *sess = cookie;
struct auth_request *req = ne_get_request_private(r, sess->spec->id);
if (!sess->can_handle || !req) {
NE_DEBUG(NE_DBG_HTTPAUTH, "Not handling session.\n");
} else {
char *value;
NE_DEBUG(NE_DBG_HTTPAUTH, "Handling auth session.\n");
req->will_handle = 1;
switch(sess->scheme) {
case auth_scheme_basic:
value = request_basic(sess);
break;
case auth_scheme_digest:
value = request_digest(sess, req);
break;
#ifdef HAVE_GSSAPI
case auth_scheme_gssapi:
value = request_gssapi(sess);
break;
#endif
#ifdef HAVE_SSPI
case auth_scheme_sspi_negotiate:
case auth_scheme_sspi_ntlm:
value = request_sspi(sess);
break;
#endif
default:
value = NULL;
break;
}
if (value != NULL) {
ne_buffer_concat(request, sess->spec->req_hdr, ": ", value, NULL);
ne_free(value);
}
}
}
/* Just before sending the request: let them add headers if they want */
static void pre_send(ne_request *req, void *session, ne_buffer *request)
{
ne_cookie_cache *cache = session;
ne_cookie *cook;
if (cache->cookies == NULL) {
return;
}
ne_buffer_zappend(request, "Cookie: ");
for (cook = cache->cookies; cook != NULL; cook=cook->next) {
ne_buffer_concat(request, cook->name, "=", cook->value, NULL);
if (cook->next != NULL) {
ne_buffer_zappend(request, "; ");
}
}
ne_buffer_zappend(request, "\r\n");
}
/* Return Digest authentication credentials header value for the given
* session. */
static char *request_digest(auth_session *sess, struct auth_request *req)
{
struct ne_md5_ctx a2, rdig;
unsigned char a2_md5[16], rdig_md5[16];
char a2_md5_ascii[33], rdig_md5_ascii[33];
char nc_value[9] = {0};
const char *qop_value = "auth"; /* qop-value */
ne_buffer *ret;
/* Increase the nonce-count */
if (sess->qop != auth_qop_none) {
sess->nonce_count++;
ne_snprintf(nc_value, 9, "%08x", sess->nonce_count);
NE_DEBUG(NE_DBG_HTTPAUTH, "Nonce count is %u, nc is [%s]\n",
sess->nonce_count, nc_value);
}
/* Calculate H(A2). */
ne_md5_init_ctx(&a2);
ne_md5_process_bytes(req->method, strlen(req->method), &a2);
ne_md5_process_bytes(":", 1, &a2);
ne_md5_process_bytes(req->uri, strlen(req->uri), &a2);
ne_md5_finish_ctx(&a2, a2_md5);
ne_md5_to_ascii(a2_md5, a2_md5_ascii);
NE_DEBUG(NE_DBG_HTTPAUTH, "H(A2): %s\n", a2_md5_ascii);
NE_DEBUG(NE_DBG_HTTPAUTH, "Calculating Request-Digest.\n");
/* Now, calculation of the Request-Digest.
* The first section is the regardless of qop value
* H(A1) ":" unq(nonce-value) ":" */
ne_md5_init_ctx(&rdig);
/* Use the calculated H(A1) */
ne_md5_process_bytes(sess->h_a1, 32, &rdig);
ne_md5_process_bytes(":", 1, &rdig);
ne_md5_process_bytes(sess->nonce, strlen(sess->nonce), &rdig);
ne_md5_process_bytes(":", 1, &rdig);
if (sess->qop != auth_qop_none) {
/* Add on:
* nc-value ":" unq(cnonce-value) ":" unq(qop-value) ":"
*/
NE_DEBUG(NE_DBG_HTTPAUTH, "Have qop directive, digesting: [%s:%s:%s]\n",
nc_value, sess->cnonce, qop_value);
ne_md5_process_bytes(nc_value, 8, &rdig);
ne_md5_process_bytes(":", 1, &rdig);
ne_md5_process_bytes(sess->cnonce, strlen(sess->cnonce), &rdig);
ne_md5_process_bytes(":", 1, &rdig);
/* Store a copy of this structure (see note below) */
sess->stored_rdig = rdig;
ne_md5_process_bytes(qop_value, strlen(qop_value), &rdig);
ne_md5_process_bytes(":", 1, &rdig);
} else {
/* Store a copy of this structure... we do this because the
* calculation of the rspauth= field in the Auth-Info header
* is the same as this digest, up to this point. */
sess->stored_rdig = rdig;
}
/* And finally, H(A2) */
ne_md5_process_bytes(a2_md5_ascii, 32, &rdig);
ne_md5_finish_ctx(&rdig, rdig_md5);
ne_md5_to_ascii(rdig_md5, rdig_md5_ascii);
ret = ne_buffer_create();
ne_buffer_concat(ret,
"Digest username=\"", sess->username, "\", "
"realm=\"", sess->realm, "\", "
"nonce=\"", sess->nonce, "\", "
"uri=\"", req->uri, "\", "
"response=\"", rdig_md5_ascii, "\", "
"algorithm=\"", sess->alg == auth_alg_md5 ? "MD5" : "MD5-sess", "\"",
NULL);
if (sess->opaque != NULL) {
ne_buffer_concat(ret, ", opaque=\"", sess->opaque, "\"", NULL);
}
if (sess->qop != auth_qop_none) {
/* Add in cnonce and nc-value fields */
ne_buffer_concat(ret, ", cnonce=\"", sess->cnonce, "\", "
"nc=", nc_value, ", "
"qop=\"", qop_value, "\"", NULL);
}
ne_buffer_zappend(ret, "\r\n");
NE_DEBUG(NE_DBG_HTTPAUTH, "Digest request header is %s\n", ret->data);
return ne_buffer_finish(ret);
}
static ne_buffer *acl_body(const ne_acl_entry *right, int count)
{
ne_buffer *body = ne_buffer_create();
int m;
ne_buffer_zappend(body,
"<?xml version=\"1.0\" encoding=\"utf-8\"?>" EOL
"<acl xmlns='DAV:'>" EOL);
for (m = 0; m < count; m++) {
const char *type;
type = (right[m].type == ne_acl_grant ? "grant" : "deny");
ne_buffer_concat(body, "<ace>" EOL "<principal>", NULL);
switch (right[m].target) {
case ne_acl_all:
ne_buffer_czappend(body, "<all/>" EOL);
break;
case ne_acl_authenticated:
ne_buffer_czappend(body, "<authenticated/>" EOL);
break;
case ne_acl_unauthenticated:
ne_buffer_czappend(body, "<unauthenticated/>" EOL);
break;
case ne_acl_self:
ne_buffer_czappend(body, "<self/>" EOL);
break;
case ne_acl_property:
ne_buffer_concat(body, "<property><", right[m].tname,
"/></property>" EOL, NULL);
break;
case ne_acl_href:
ne_buffer_concat(body, "<href>", right[m].tname,
"</href>" EOL, NULL);
break;
}
ne_buffer_concat(body, "</principal>" EOL
"<", type, ">" EOL, NULL);
if ((right[m].privileges & NE_ACL_READ) == NE_ACL_READ)
ne_buffer_concat(body,
"<privilege>" "<read/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_WRITE) == NE_ACL_WRITE)
ne_buffer_concat(body,
"<privilege>" "<write/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_WRITE_PROPERTIES) == NE_ACL_WRITE_PROPERTIES)
ne_buffer_concat(body,
"<privilege>" "<write-properties/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_WRITE_CONTENT) == NE_ACL_WRITE_CONTENT)
ne_buffer_concat(body,
"<privilege>" "<write-content/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_UNLOCK) == NE_ACL_UNLOCK)
ne_buffer_concat(body,
"<privilege>" "<unlock/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_READ_ACL) == NE_ACL_READ_ACL)
ne_buffer_concat(body,
"<privilege>" "<read-acl/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_READ_CUPRIVSET) == NE_ACL_READ_CUPRIVSET)
ne_buffer_concat(body,
"<privilege>" "<read-current-user-privileges-set/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_WRITE_ACL) == NE_ACL_WRITE_ACL)
ne_buffer_concat(body,
"<privilege>" "<write-acl/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_BIND) == NE_ACL_BIND)
ne_buffer_concat(body,
"<privilege>" "<bind/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_UNBIND) == NE_ACL_UNBIND)
ne_buffer_concat(body,
"<privilege>" "<unbind/>" "</privilege>" EOL,
NULL);
if ((right[m].privileges & NE_ACL_ALL) == NE_ACL_ALL)
ne_buffer_concat(body,
"<privilege>" "<all/>" "</privilege>" EOL,
NULL);
ne_buffer_concat(body, "</", type, ">" EOL, NULL);
ne_buffer_czappend(body, "</ace>" EOL);
}
ne_buffer_czappend(body, "</acl>" EOL);
return body;
}
static ne_request *s3_new_request(const S3 *s3,const char *method,const char *bucket,const char *key,const char *params,const char *content_type)
{
ne_buffer *date, *signing_string, *request_str;
ne_request *req;
char *sig, *p;
time_t t;
if(!s3) return NULL;
if(!method) return NULL;
if(!bucket) return NULL;
if(!s3->session) return NULL;
// create some string buffers
date = ne_buffer_create();
signing_string = ne_buffer_create();
request_str = ne_buffer_create();
// get the time
t = time(NULL);
ne_buffer_zappend(date,asctime(gmtime(&t)));
if(date->data[date->used - 2] == '\n')
date->data[date->used - 2] = 0;
ne_buffer_altered(date);
// create request
if(key) ne_buffer_concat(request_str,"/",bucket,"/",key,NULL);
else ne_buffer_concat(request_str,"/",bucket,NULL);
if(params && params[0] != 0) {
ne_buffer_zappend(request_str,"?");
ne_buffer_zappend(request_str,params);
}
req = ne_request_create(s3->session,method,request_str->data);
// Add date header
ne_add_request_header(req,"Date",date->data);
// Add content-type header
if(content_type) ne_add_request_header(req,"Content-Type",content_type);
else content_type = "";
// construct signing string
p = strrchr(request_str->data,'?');
if(p) {
*p = 0;
ne_buffer_altered(request_str);
}
ne_buffer_concat(signing_string,method,"\n\n",content_type,"\n",date->data,"\n",request_str->data,NULL);
// sign the string
sig = s3_sign_string(s3,signing_string->data);
// construct signed header
ne_print_request_header(req,"Authorization","AWS %s:%s",s3->access_id,sig);
ne_buffer_destroy(date);
ne_buffer_destroy(signing_string);
ne_buffer_destroy(request_str);
free(sig);
return req;
}
int ne_lock(ne_session *sess, struct ne_lock *lock)
{
ne_request *req = ne_request_create(sess, "LOCK", lock->uri.path);
ne_buffer *body = ne_buffer_create();
ne_xml_parser *parser = ne_xml_create();
int ret, parse_failed;
struct lock_ctx ctx;
memset(&ctx, 0, sizeof ctx);
ctx.cdata = ne_buffer_create();
ctx.req = req;
ne_xml_push_handler(parser, lk_startelm, lk_cdata, lk_endelm, &ctx);
/* Create the body */
ne_buffer_concat(body, "<?xml version=\"1.0\" encoding=\"utf-8\"?>" EOL
"<lockinfo xmlns='DAV:'>" EOL " <lockscope>",
lock->scope==ne_lockscope_exclusive?
"<exclusive/>":"<shared/>",
"</lockscope>" EOL
"<locktype><write/></locktype>", NULL);
if (lock->owner) {
ne_buffer_concat(body, "<owner>", lock->owner, "</owner>" EOL, NULL);
}
ne_buffer_zappend(body, "</lockinfo>" EOL);
ne_set_request_body_buffer(req, body->data, ne_buffer_size(body));
/* ne_add_request_header(req, "Content-Type", NE_XML_MEDIA_TYPE); */
/* Just to test whether sever accepts both text/xml and application/xml */
ne_add_request_header(req, "Content-Type", "text/xml");
ne_add_depth_header(req, lock->depth);
add_timeout_header(req, lock->timeout);
/* TODO:
* By 2518, we need this only if we are creating a lock-null resource.
* Since we don't KNOW whether the lock we're given is a lock-null
* or not, we cover our bases.
*/
ne_lock_using_parent(req, lock->uri.path);
/* This one is clearer from 2518 sec 8.10.4. */
ne_lock_using_resource(req, lock->uri.path, lock->depth);
ret = ne_xml_dispatch_request(req, parser);
ne_buffer_destroy(body);
ne_buffer_destroy(ctx.cdata);
parse_failed = ne_xml_failed(parser);
if (ret == NE_OK && ne_get_status(req)->klass == 2) {
if (ctx.token == NULL) {
ret = NE_ERROR;
ne_set_error(sess, _("No Lock-Token header given"));
}
else if (parse_failed) {
ret = NE_ERROR;
ne_set_error(sess, "%s", ne_xml_get_error(parser));
}
else if (ne_get_status(req)->code == 207) {
ret = NE_ERROR;
/* TODO: set the error string appropriately */
}
else if (ctx.found) {
/* it worked: copy over real lock details if given. */
if (lock->token) ne_free(lock->token);
lock->token = ctx.token;
ctx.token = NULL;
if (ctx.active.timeout != NE_TIMEOUT_INVALID)
lock->timeout = ctx.active.timeout;
lock->scope = ctx.active.scope;
lock->type = ctx.active.type;
if (ctx.active.depth >= 0)
lock->depth = ctx.active.depth;
if (ctx.active.owner) {
if (lock->owner) ne_free(lock->owner);
lock->owner = ctx.active.owner;
ctx.active.owner = NULL;
}
} else {
ret = NE_ERROR;
ne_set_error(sess, _("Response missing activelock for %s"),
ctx.token);
}
} else if (ret == NE_OK /* && status != 2xx */) {
ret = NE_ERROR;
}
ne_lock_free(&ctx.active);
if (ctx.token) ne_free(ctx.token);
ne_request_destroy(req);
ne_xml_destroy(parser);
return ret;
}
