798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "mod_dav.h"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "http_request.h"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "http_config.h"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "http_vhost.h"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "http_log.h"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "http_protocol.h"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering#include "apr_strings.h"

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poetteringdav_error *dav_new_error(apr_pool_t *p, int status, int error_id, const char *desc)

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering{

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering int save_errno = errno;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering dav_error *err = apr_pcalloc(p, sizeof(*err));

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* DBG3("dav_new_error: %d %d %s", status, error_id, desc ? desc : "(no desc)"); */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->status = status;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->error_id = error_id;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->desc = desc;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->save_errno = save_errno;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering return err;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering}

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poetteringdav_error *dav_push_error(apr_pool_t *p, int status, int error_id, const char *desc,

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt dav_error *prev)

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt{

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt dav_error *err = apr_pcalloc(p, sizeof(*err));

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->status = status;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->error_id = error_id;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->desc = desc;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering err->prev = prev;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering return err;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering}

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poetteringvoid dav_check_bufsize(apr_pool_t * p, dav_buffer *pbuf, size_t extra_needed)

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering{

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* grow the buffer if necessary */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering if (pbuf->cur_len + extra_needed > pbuf->alloc_len) {

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering char *newbuf;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering pbuf->alloc_len += extra_needed + DAV_BUFFER_PAD;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek newbuf = apr_palloc(p, pbuf->alloc_len);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek memcpy(newbuf, pbuf->buf, pbuf->cur_len);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->buf = newbuf;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekvoid dav_set_bufsize(apr_pool_t * p, dav_buffer *pbuf, size_t size)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* NOTE: this does not retain prior contents */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* NOTE: this function is used to init the first pointer, too, since

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* grow if we don't have enough for the requested size plus padding */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (size + DAV_BUFFER_PAD > pbuf->alloc_len) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* set the new length; min of MINSIZE */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->alloc_len = size + DAV_BUFFER_PAD;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (pbuf->alloc_len < DAV_BUFFER_MINSIZE)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->alloc_len = DAV_BUFFER_MINSIZE;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->buf = apr_palloc(p, pbuf->alloc_len);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->cur_len = size;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekvoid dav_buffer_init(apr_pool_t *p, dav_buffer *pbuf, const char *str)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_set_bufsize(p, pbuf, strlen(str));

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek memcpy(pbuf->buf, str, pbuf->cur_len + 1);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekvoid dav_buffer_append(apr_pool_t *p, dav_buffer *pbuf, const char *str)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek size_t len = strlen(str);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_check_bufsize(p, pbuf, len + 1);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek memcpy(pbuf->buf + pbuf->cur_len, str, len + 1);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->cur_len += len;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekvoid dav_buffer_place(apr_pool_t *p, dav_buffer *pbuf, const char *str)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek size_t len = strlen(str);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_check_bufsize(p, pbuf, len + 1);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek memcpy(pbuf->buf + pbuf->cur_len, str, len + 1);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekvoid dav_buffer_place_mem(apr_pool_t *p, dav_buffer *pbuf, const void *mem,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek size_t amt, size_t pad)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_check_bufsize(p, pbuf, amt + pad);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek memcpy(pbuf->buf + pbuf->cur_len, mem, amt);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekdav_lookup_result dav_lookup_uri(const char *uri, request_rec * r)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_lookup_result result = { 0 };

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering const char *scheme;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering unsigned short port = ntohs(r->connection->local_addr.sin_port);

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering uri_components comp;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering char *new_file;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering const char *domain;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering /* first thing to do is parse the URI into various components */

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering if (ap_parse_uri_components(r->pool, uri, &comp) != HTTP_OK) {

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering result.err.status = HTTP_BAD_REQUEST;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering result.err.desc = "Invalid syntax in Destination URI.";

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering return result;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering }

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering /* the URI must be an absoluteURI (WEBDAV S9.3) */

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering if (comp.scheme == NULL) {

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering result.err.status = HTTP_BAD_REQUEST;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering result.err.desc = "Destination URI must be an absolute URI.";

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering return result;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering }

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering /* ### not sure this works if the current request came in via https: */

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering scheme = r->parsed_uri.scheme;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering if (scheme == NULL)

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering scheme = ap_http_method(r);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* insert a port if the URI did not contain one */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (comp.port == 0)

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt comp.port = ap_default_port_for_scheme(comp.scheme);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* now, verify that the URI uses the same scheme as the current request.

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (strcasecmp(comp.scheme, scheme) != 0 ||

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek comp.port != port) {

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt result.err.status = HTTP_BAD_GATEWAY;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek result.err.desc = apr_psprintf(r->pool,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Destination URI refers to different "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "scheme or port (%s://hostname:%d)"

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek APR_EOL_STR "(want: %s://hostname:%d)",

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek comp.scheme ? comp.scheme : scheme,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek comp.port ? comp.port : port,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek scheme, port);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return result;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (comp.query != NULL || comp.fragment != NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek result.err.status = HTTP_BAD_REQUEST;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek result.err.desc =

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Destination URI contains invalid components "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "(a query or a fragment).";

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return result;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* we have verified the scheme, port, and general structure */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (strrchr(comp.hostname, '.') == NULL &&

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek (domain = strchr(r->server->server_hostname, '.')) != NULL) {

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt comp.hostname = apr_pstrcat(r->pool, comp.hostname, domain, NULL);

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt }

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* now, if a hostname was provided, then verify that it represents the

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (comp.hostname != NULL &&

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek !ap_matches_request_vhost(r, comp.hostname, port)) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek result.err.status = HTTP_BAD_GATEWAY;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek result.err.desc = "Destination URI refers to a different server.";

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return result;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* we have verified that the requested URI denotes the same server as

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* reconstruct a URI as just the path */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek new_file = ap_unparse_uri_components(r->pool, &comp, UNP_OMITSITEPART);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering result.rnew = ap_sub_req_method_uri(r->method, new_file, r);

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering return result;

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering}

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekint dav_validate_root(const ap_xml_doc *doc, const char *tagname)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return doc->root &&

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek doc->root->ns == AP_XML_NS_DAV_ID &&

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek strcmp(doc->root->name, tagname) == 0;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekap_xml_elem *dav_find_child(const ap_xml_elem *elem, const char *tagname)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek ap_xml_elem *child = elem->first_child;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek for (; child; child = child->next)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (child->ns == AP_XML_NS_DAV_ID && !strcmp(child->name, tagname))

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return child;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmektime_t dav_get_timeout(request_rec *r)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek time_t now, expires = DAV_TIMEOUT_INFINITE;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *timeout_const = apr_table_get(r->headers_in, "Timeout");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *timeout = apr_pstrdup(r->pool, timeout_const), *val;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (timeout == NULL)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return DAV_TIMEOUT_INFINITE;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* Use the first thing we understand, or infinity if

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek while ((val = ap_getword_white(r->pool, &timeout)) && strlen(val)) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (!strncmp(val, "Infinite", 8)) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return DAV_TIMEOUT_INFINITE;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

28f90ea25f8d8f2bfbe6d3e6a4846943eb92e4c5Zbigniew Jędrzejewski-Szmek if (!strncmp(val, "Second-", 7)) {

28f90ea25f8d8f2bfbe6d3e6a4846943eb92e4c5Zbigniew Jędrzejewski-Szmek val += 7;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* ### We need to handle overflow better:

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek expires = atol(val);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek now = time(NULL);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return now + expires;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return DAV_TIMEOUT_INFINITE;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic dav_if_header *dav_add_if_resource(apr_pool_t *p, dav_if_header *next_ih,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *uri, size_t uri_len)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_if_header *ih;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((ih = apr_pcalloc(p, sizeof(*ih))) == NULL)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek ih->uri = uri;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek ih->uri_len = uri_len;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek ih->next = next_ih;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return ih;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekstatic dav_error * dav_add_if_state(apr_pool_t *p, dav_if_header *ih,

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering const char *state_token,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_if_state_type t, int condition,

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering const dav_hooks_locks *locks_hooks)

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt{

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering dav_if_state_list *new_sl;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering new_sl = apr_pcalloc(p, sizeof(*new_sl));

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering new_sl->condition = condition;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering new_sl->type = t;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering if (t == dav_if_opaquelock) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_error *err;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((err = (*locks_hooks->parse_locktoken)(p, state_token,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek &new_sl->locktoken)) != NULL) {

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* ### maybe add a higher-level description */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering return err;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering }

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering else

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering new_sl->etag = state_token;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek new_sl->next = ih->state;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering ih->state = new_sl;

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering return NULL;

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering}

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poetteringstatic char *dav_fetch_next_token(char **str, char term)

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering{

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering char *sp;

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt char *token;

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering token = *str + 1;

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering while (*token && (*token == ' ' || *token == '\t'))

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering token++;

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering if ((sp = strchr(token, term)) == NULL)

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt return NULL;

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering *sp = '\0';

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt *str = sp;

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering return token;

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering}

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poetteringstatic dav_error * dav_process_if_header(request_rec *r, dav_if_header **p_ih)

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering{

c454426c54c9beb274f415a80c64a4f1580700e7Lennart Poettering dav_error *err;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek char *str;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek char *list;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *state_token;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *uri = NULL; /* scope of current production; NULL=no-tag */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek size_t uri_len = 0;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_if_header *ih = NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek uri_components parsed_uri;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const dav_hooks_locks *locks_hooks = DAV_GET_HOOKS_LOCKS(r);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek enum {no_tagged, tagged, unknown} list_type = unknown;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek int condition;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek *p_ih = NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((str = apr_pstrdup(r->pool, apr_table_get(r->headers_in, "If"))) == NULL)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek while (*str) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek switch(*str) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case '<':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* Tagged-list production - following states apply to this uri */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (list_type == no_tagged

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek || ((uri = dav_fetch_next_token(&str, '>')) == NULL)) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_TAGGED,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Invalid If-header: unclosed \"<\" or "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "unexpected tagged-list production.");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* 2518 specifies this must be an absolute URI; just take the

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (ap_parse_uri_components(r->pool, uri, &parsed_uri) != HTTP_OK) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_TAGGED,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Invalid URI in tagged If-header.");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* note that parsed_uri.path is allocated; we can trash it */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* clean up the URI a bit */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek ap_getparents(parsed_uri.path);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek uri_len = strlen(parsed_uri.path);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (uri_len > 1 && parsed_uri.path[uri_len - 1] == '/')

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek parsed_uri.path[--uri_len] = '\0';

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek uri = parsed_uri.path;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek list_type = tagged;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case '(':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* List production */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* If a uri has not been encountered, this is a No-Tagged-List */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (list_type == unknown)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek list_type = no_tagged;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((list = dav_fetch_next_token(&str, ')')) == NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_UNCLOSED_PAREN,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Invalid If-header: unclosed \"(\".");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((ih = dav_add_if_resource(r->pool, ih, uri, uri_len)) == NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* ### dav_add_if_resource() should return an error for us! */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_PARSE,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Internal server error parsing \"If:\" "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "header.");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

cb7bb815d2ad7945e63214d21cec1d70152ba6abMarkus Knetschke

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt condition = DAV_IF_COND_NORMAL;

cb7bb815d2ad7945e63214d21cec1d70152ba6abMarkus Knetschke

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt while (*list) {

cb7bb815d2ad7945e63214d21cec1d70152ba6abMarkus Knetschke /* List is the entire production (in a uri scope) */

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

cb7bb815d2ad7945e63214d21cec1d70152ba6abMarkus Knetschke switch (*list) {

cb7bb815d2ad7945e63214d21cec1d70152ba6abMarkus Knetschke case '<':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((state_token = dav_fetch_next_token(&list, '>')) == NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* ### add a description to this error */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_PARSE, NULL);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((err = dav_add_if_state(r->pool, ih, state_token, dav_if_opaquelock,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek condition, locks_hooks)) != NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* ### maybe add a higher level description */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return err;

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek condition = DAV_IF_COND_NORMAL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case '[':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((state_token = dav_fetch_next_token(&list, ']')) == NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* ### add a description to this error */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_PARSE, NULL);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt if ((err = dav_add_if_state(r->pool, ih, state_token, dav_if_etag,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek condition, locks_hooks)) != NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* ### maybe add a higher level description */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return err;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek condition = DAV_IF_COND_NORMAL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case 'N':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (list[1] == 'o' && list[2] == 't') {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (condition != DAV_IF_COND_NORMAL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_MULTIPLE_NOT,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Invalid \"If:\" header: "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Multiple \"not\" entries "

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt "for the same state.");

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek condition = DAV_IF_COND_NOT;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek list += 2;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case ' ':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case '\t':

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek default:

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_UNK_CHAR,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek apr_psprintf(r->pool,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Invalid \"If:\" "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "header: Unexpected "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "character encountered "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "(0x%02x, '%c').",

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering *list, *list));

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek list++;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case ' ':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case '\t':

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek default:

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(r->pool, HTTP_BAD_REQUEST,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek DAV_ERR_IF_UNK_CHAR,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek apr_psprintf(r->pool,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Invalid \"If:\" header: "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Unexpected character "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "encountered (0x%02x, '%c').",

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering *str, *str));

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek str++;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poettering *p_ih = ih;

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poettering return NULL;

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poettering}

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poettering

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poetteringstatic int dav_find_submitted_locktoken(const dav_if_header *if_header,

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poettering const dav_lock *lock_list,

3fe22bb4b6b5faf27683ad2e231b5a69b6e63a9eLennart Poettering const dav_hooks_locks *locks_hooks)

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek{

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek for (; if_header != NULL; if_header = if_header->next) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const dav_if_state_list *state_list;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek for (state_list = if_header->state;

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering state_list != NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek state_list = state_list->next) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (state_list->type == dav_if_opaquelock) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const dav_lock *lock;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* given state_list->locktoken, match it */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek for (lock = lock_list; lock != NULL; lock = lock->next) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering if (!(*locks_hooks->compare_locktoken)(state_list->locktoken, lock->locktoken)) {

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering return 1;

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering }

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt }

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt }

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering }

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering }

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt return 0;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering}

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering

7de304525deafe4eb86060321e39787138dbbadfLennart Poetteringstatic dav_error * dav_validate_resource_state(apr_pool_t *p,

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt const dav_resource *resource,

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt dav_lockdb *lockdb,

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering const dav_if_header *if_header,

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering int flags,

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering dav_buffer *pbuf,

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering request_rec *r)

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering{

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering dav_error *err;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering const char *uri;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering const char *etag;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering const dav_hooks_locks *locks_hooks = (lockdb ? lockdb->hooks : NULL);

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt const dav_if_header *ifhdr_scan;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering dav_if_state_list *state_list;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering dav_lock *lock_list;

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering dav_lock *lock;

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering int num_matched;

d6ce17c7f02ed3facdb45f65f546e587c2f00950Lennart Poettering int num_that_apply;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek int seen_locktoken;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek size_t uri_len;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *reason = NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* DBG1("validate: <%s>", resource->uri); */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt /*

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (lockdb == NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* we're in State 1. no locks. */

dd2b607b7d1ce355e93f9f71cd256ec20b8ae9c4Thomas Hindoe Paaboel Andersen lock_list = NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek else {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((err = dav_lock_query(lockdb, resource, &lock_list)) != NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_push_error(p,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek HTTP_INTERNAL_SERVER_ERROR, 0,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "The locks could not be queried for "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "verification against a possible \"If:\" "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "header.",

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek err);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* lock_list now determines whether we're in State 1, 2, or 3. */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (flags & DAV_LOCKSCOPE_EXCLUSIVE) {

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt if (lock_list != NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(p, HTTP_LOCKED, 0,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "Existing lock(s) on the requested resource "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "prevent an exclusive lock.");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek seen_locktoken = 1;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek else if (flags & DAV_LOCKSCOPE_SHARED) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek for (lock = lock_list; lock != NULL; lock = lock->next) {

dd2b607b7d1ce355e93f9f71cd256ec20b8ae9c4Thomas Hindoe Paaboel Andersen if (lock->scope == DAV_LOCKSCOPE_EXCLUSIVE) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek return dav_new_error(p, HTTP_LOCKED, 0,

6b94875fa3a7280e7f1c0df11027b927b6961edeRichard Maw "The requested resource is already "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "locked exclusively.");

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering seen_locktoken = 1;

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering }

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering else {

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering /*

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering seen_locktoken = (lock_list == NULL);

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt }

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering /*

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering if (if_header == NULL) {

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering if (seen_locktoken)

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering return NULL;

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering return dav_new_error(p, HTTP_LOCKED, 0,

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering "This resource is locked and an \"If:\" header "

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering "was not supplied to allow access to the "

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering "resource.");

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering }

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering /* the If: header is present */

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering /*

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering if (lock_list == NULL && if_header->dummy_header) {

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering if (flags & DAV_VALIDATE_IS_PARENT)

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering return NULL;

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt return dav_new_error(p, HTTP_BAD_REQUEST, 0,

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering "The locktoken specified in the \"Lock-Token:\" "

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering "header is invalid because this resource has no "

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering "outstanding locks.");

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering uri = resource->uri;

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering uri_len = strlen(uri);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (uri[uri_len - 1] == '/') {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek dav_set_bufsize(p, pbuf, uri_len);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek memcpy(pbuf->buf, uri, uri_len);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek pbuf->buf[--uri_len] = '\0';

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek uri = pbuf->buf;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* get the resource's etag; we may need it during the checks */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering etag = (*resource->hooks->getetag)(resource);

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt /* how many state_lists apply to this URI? */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering num_that_apply = 0;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* If there are if-headers, fail if this resource

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt for (ifhdr_scan = if_header;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering ifhdr_scan != NULL;

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering ifhdr_scan = ifhdr_scan->next) {

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* DBG2("uri=<%s> if_uri=<%s>", uri, ifhdr_scan->uri ? ifhdr_scan->uri : "(no uri)"); */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt if (ifhdr_scan->uri != NULL

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering && (uri_len != ifhdr_scan->uri_len

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering || memcmp(uri, ifhdr_scan->uri, uri_len) != 0)) {

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /*

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering continue;

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt }

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering /* this state_list applies to this resource */

91913f584af38b29a816cca959ba648acd60ac9fLennart Poettering

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek ++num_that_apply;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* To succeed, resource must match *all* of the states

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek for (state_list = ifhdr_scan->state;

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt state_list != NULL;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek state_list = state_list->next) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek switch(state_list->type) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case dav_if_etag:

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek int mismatch = strcmp(state_list->etag, etag);

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering if (state_list->condition == DAV_IF_COND_NORMAL && mismatch) {

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering /*

b43d75c378d919900e5c1e82a82e3e17dd3de9f9Lennart Poettering reason =

b43d75c378d919900e5c1e82a82e3e17dd3de9f9Lennart Poettering "an entity-tag was specified, but the resource's "

b43d75c378d919900e5c1e82a82e3e17dd3de9f9Lennart Poettering "actual ETag does not match.";

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering goto state_list_failed;

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering }

af40e5d3acbdcff09c8809cd1b86ecf8871f65f0Lennart Poettering else if (state_list->condition == DAV_IF_COND_NOT

7de304525deafe4eb86060321e39787138dbbadfLennart Poettering && !mismatch) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek reason =

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "an entity-tag was specified using the \"Not\" form, "

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "but the resource's actual ETag matches the provided "

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt "entity-tag.";

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek goto state_list_failed;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek break;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek case dav_if_opaquelock:

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (lockdb == NULL) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (state_list->condition == DAV_IF_COND_NOT) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* the locktoken is definitely not there! (success) */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek continue;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

a8eaaee72a2f06e0fb64fb71de3b71ecba31dafbJan Engelhardt /* condition == DAV_IF_COND_NORMAL */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek reason =

e0ea94c1e2ab3930c85c6057189a2a829a13a800Lennart Poettering "a State-token was supplied, but a lock database "

e0ea94c1e2ab3930c85c6057189a2a829a13a800Lennart Poettering "is not available for to provide the required lock.";

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek goto state_list_failed;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* Resource validation 'fails' if:

ac92ced5bb41def1d90f871d6c8cfec2b03c0c7dBenjamin Franzke num_matched = 0;

ac92ced5bb41def1d90f871d6c8cfec2b03c0c7dBenjamin Franzke for (lock = lock_list; lock != NULL; lock = lock->next) {

ac92ced5bb41def1d90f871d6c8cfec2b03c0c7dBenjamin Franzke

ac92ced5bb41def1d90f871d6c8cfec2b03c0c7dBenjamin Franzke /*

b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* nothing to do if the locktokens do not match. */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if ((*locks_hooks->compare_locktoken)(state_list->locktoken, lock->locktoken)) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek continue;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering /*

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering seen_locktoken = 1;

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering if (state_list->condition == DAV_IF_COND_NOT) {

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering /*

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering reason =

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering "a State-token was supplied, which used a "

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering "\"Not\" condition. The State-token was found "

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering "in the locks on this resource";

ef3100e9637adda26fa19e7ee8606788320dcde3Lennart Poettering goto state_list_failed;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek }

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* condition == DAV_IF_COND_NORMAL */

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /* Validate auth_user: If an authenticated user created

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if (lock->auth_user &&

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek (!r->user ||

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek strcmp(lock->auth_user, r->user))) {

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek const char *errmsg;

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek errmsg = apr_pstrcat(p, "User \"",

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek r->user,

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek "\" submitted a locktoken created "

6e9efa59209d48fc69a456fbadb2b5c113f503a6Lennart Poettering "by user \"",

16eb4024887b1b79fc56706fda25eadaecdef2d4Zbigniew Jędrzejewski-Szmek lock->auth_user, "\".", NULL);

16eb4024887b1b79fc56706fda25eadaecdef2d4Zbigniew Jędrzejewski-Szmek return dav_new_error(p, HTTP_UNAUTHORIZED, 0, errmsg);

16eb4024887b1b79fc56706fda25eadaecdef2d4Zbigniew Jędrzejewski-Szmek }

16eb4024887b1b79fc56706fda25eadaecdef2d4Zbigniew Jędrzejewski-Szmek

798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek /*

num_matched = 1;

break;

}

if (num_matched == 0

&& state_list->condition == DAV_IF_COND_NORMAL) {

/*

reason =

"a State-token was supplied, but it was not found "

"in the locks on this resource.";

goto state_list_failed;

}

break;

} /* switch */

} /* foreach ( state_list ) */

/*

if (seen_locktoken) {

/* woo hoo! */

return NULL;

}

/*

break;

/*

state_list_failed:

;

} /* foreach ( ifhdr_scan ) */

/*

if (ifhdr_scan == NULL) {

/*

/*

if (num_that_apply == 0) {

if (seen_locktoken)

return NULL;

/*

if (dav_find_submitted_locktoken(if_header, lock_list,

locks_hooks)) {

/*

return NULL;

}

return dav_new_error(p, HTTP_LOCKED, 0 /* error_id */,

"This resource is locked and the \"If:\" "

"header did not specify one of the "

"locktokens for this resource's lock(s).");

}

/* else: one or more state_lists were applicable, but failed. */

/*

if (if_header->dummy_header) {

return dav_new_error(p, HTTP_BAD_REQUEST, 0,

"The locktoken specified in the "

"\"Lock-Token:\" header did not specify one "

"of this resource's locktoken(s).");

}

if (reason == NULL) {

return dav_new_error(p, HTTP_PRECONDITION_FAILED, 0,

"The preconditions specified by the \"If:\" "

"header did not match this resource.");

}

return dav_new_error(p, HTTP_PRECONDITION_FAILED, 0,

apr_psprintf(p,

"The precondition(s) specified by "

"the \"If:\" header did not match "

"this resource. At least one "

"failure is because: %s", reason));

}

/* assert seen_locktoken == 0 */

/*

if (dav_find_submitted_locktoken(if_header, lock_list, locks_hooks)) {

/*

return NULL;

}

/*

if (if_header->dummy_header) {

return dav_new_error(p, HTTP_BAD_REQUEST, 0,

"The locktoken specified in the "

"\"Lock-Token:\" header did not specify one "

"of this resource's locktoken(s).");

}

return dav_new_error(p, HTTP_LOCKED, 1 /* error_id */,

"This resource is locked and the \"If:\" header "

"did not specify one of the "

"locktokens for this resource's lock(s).");

}

static dav_error * dav_validate_walker(dav_walker_ctx *ctx, int calltype)

{

dav_error *err;

if ((err = dav_validate_resource_state(ctx->pool, ctx->resource,

ctx->lockdb,

ctx->if_header, ctx->flags,

&ctx->work_buf, ctx->r)) == NULL) {

/* There was no error, so just bug out. */

return NULL;

}

/*

if (ap_is_HTTP_SERVER_ERROR(err->status)

|| (*ctx->resource->hooks->is_same_resource)(ctx->resource,

ctx->root)) {

/* ### maybe push a higher-level description? */

return err;

}

/* associate the error with the current URI */

dav_add_response(ctx, ctx->uri.buf, err->status, NULL);

return NULL;

}

dav_error * dav_validate_request(request_rec *r, dav_resource *resource,

int depth, dav_locktoken *locktoken,

dav_response **response, int flags,

dav_lockdb *lockdb)

{

dav_error *err;

int result;

dav_if_header *if_header;

int lock_db_opened_locally = 0;

const dav_hooks_locks *locks_hooks = DAV_GET_HOOKS_LOCKS(r);

const dav_hooks_repository *repos_hooks = resource->hooks;

dav_buffer work_buf = { 0 };

dav_response *new_response;

#if DAV_DEBUG

if (depth && response == NULL) {

/*

return dav_new_error(r->pool, HTTP_INTERNAL_SERVER_ERROR, 0,

"DESIGN ERROR: dav_validate_request called "

"with depth>0, but no response ptr.");

}

#endif

if (response != NULL)

*response = NULL;

/* Do the standard checks for conditional requests using

if ((result = ap_meets_conditions(r)) != OK) {

/* ### fix this up... how? */

return dav_new_error(r->pool, result, 0, NULL);

}

/* always parse (and later process) the If: header */

if ((err = dav_process_if_header(r, &if_header)) != NULL) {

/* ### maybe add higher-level description */

return err;

}

/* If a locktoken was specified, create a dummy if_header with which

if (locktoken != NULL) {

dav_if_header *ifhdr_new;

ifhdr_new = apr_pcalloc(r->pool, sizeof(*ifhdr_new));

ifhdr_new->uri = resource->uri;

ifhdr_new->uri_len = strlen(resource->uri);

ifhdr_new->dummy_header = 1;

ifhdr_new->state = apr_pcalloc(r->pool, sizeof(*ifhdr_new->state));

ifhdr_new->state->type = dav_if_opaquelock;

ifhdr_new->state->condition = DAV_IF_COND_NORMAL;

ifhdr_new->state->locktoken = locktoken;

ifhdr_new->next = if_header;

if_header = ifhdr_new;

}

/*

if (lockdb == NULL) {

if (locks_hooks != NULL) {

if ((err = (*locks_hooks->open_lockdb)(r, 0, 0, &lockdb)) != NULL) {

/* ### maybe insert higher-level comment */

return err;

}

lock_db_opened_locally = 1;

}

else {

return dav_new_error(r->pool, HTTP_INTERNAL_SERVER_ERROR, 0,

"Resource validation failed because no "

"lock hooks were found.");

}

}

/* (1) Validate the specified resource, at the specified depth */

if (resource->exists && depth > 0) {

dav_walker_ctx ctx = { 0 };

ctx.walk_type = DAV_WALKTYPE_ALL;

ctx.postfix = 0;

ctx.func = dav_validate_walker;

ctx.pool = r->pool;

ctx.if_header = if_header;

ctx.r = r;

ctx.flags = flags;

ctx.resource = resource;

if (lockdb != NULL) {

ctx.lockdb = lockdb;

ctx.walk_type |= DAV_WALKTYPE_LOCKNULL;

}

dav_buffer_init(r->pool, &ctx.uri, resource->uri);

err = (*repos_hooks->walk)(&ctx, DAV_INFINITY);

if (err == NULL) {

*response = ctx.response;

}

/* else: implies a 5xx status code occurred. */

}

else {

err = dav_validate_resource_state(r->pool, resource, lockdb,

if_header, flags, &work_buf, r);

}

/* (2) Validate the parent resource if requested */

if (err == NULL && (flags & DAV_VALIDATE_PARENT)) {

dav_resource *parent_resource = (*repos_hooks->get_parent_resource)(resource);

if (parent_resource == NULL) {

err = dav_new_error(r->pool, HTTP_FORBIDDEN, 0,

"Cannot access parent of repository root.");

}

else {

err = dav_validate_resource_state(r->pool, parent_resource, lockdb,

if_header,

flags | DAV_VALIDATE_IS_PARENT,

&work_buf, r);

/*

if (err != NULL) {

new_response = apr_pcalloc(r->pool, sizeof(*new_response));

new_response->href = parent_resource->uri;

new_response->status = err->status;

new_response->desc =

"A validation error has occurred on the parent resource, "

"preventing the operation on the resource specified by "

"the Request-URI.";

if (err->desc != NULL) {

new_response->desc = apr_pstrcat(r->pool,

new_response->desc,

" The error was: ",

err->desc, NULL);

}

/* assert: DAV_VALIDATE_PARENT implies response != NULL */

new_response->next = *response;

*response = new_response;

err = NULL;

}

}

}

if (lock_db_opened_locally)

(*locks_hooks->close_lockdb)(lockdb);

/*

if (err == NULL && response != NULL && *response != NULL) {

ap_text *propstat = NULL;

if ((flags & DAV_VALIDATE_USE_424) != 0) {

/* manufacture a 424 error to hold the multistatus response(s) */

return dav_new_error(r->pool, HTTP_FAILED_DEPENDENCY, 0,

"An error occurred on another resource, "

"preventing the requested operation on "

"this resource.");

}

/*

if ((flags & DAV_VALIDATE_ADD_LD) != 0) {

propstat = apr_pcalloc(r->pool, sizeof(*propstat));

propstat->text =

"<D:propstat>" DEBUG_CR

"<D:prop><D:lockdiscovery/></D:prop>" DEBUG_CR

"<D:status>HTTP/1.1 424 Failed Dependency</D:status>" DEBUG_CR

"</D:propstat>" DEBUG_CR;

}

/* create the 424 response */