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Posted to cvs@httpd.apache.org by mi...@apache.org on 2020/06/28 13:17:26 UTC

svn commit: r1879306 - in /httpd/httpd/trunk: CHANGES include/ap_mmn.h modules/dav/main/mod_dav.c modules/dav/main/mod_dav.h

Author: minfrin
Date: Sun Jun 28 13:17:26 2020
New Revision: 1879306

URL: http://svn.apache.org/viewvc?rev=1879306&view=rev
Log:
Add hooks deliver_report and gather_reports to mod_dav.h. Allows other
modules apart from versioning implementations to handle the REPORT method.

Modified:
    httpd/httpd/trunk/CHANGES
    httpd/httpd/trunk/include/ap_mmn.h
    httpd/httpd/trunk/modules/dav/main/mod_dav.c
    httpd/httpd/trunk/modules/dav/main/mod_dav.h

Modified: httpd/httpd/trunk/CHANGES
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?rev=1879306&r1=1879305&r2=1879306&view=diff
==============================================================================
--- httpd/httpd/trunk/CHANGES [utf-8] (original)
+++ httpd/httpd/trunk/CHANGES [utf-8] Sun Jun 28 13:17:26 2020
@@ -1,6 +1,10 @@
                                                          -*- coding: utf-8 -*-
 Changes with Apache 2.5.1
 
+  *) Add hooks deliver_report and gather_reports to mod_dav.h. Allows other
+     modules apart from versioning implementations to handle the REPORT method.
+     [Graham Leggett]
+
   *) Add dav_get_provider(), dav_open_lockdb() and dav_close_lockdb() mod_dav.h.
      [Graham Leggett]
 

Modified: httpd/httpd/trunk/include/ap_mmn.h
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/include/ap_mmn.h?rev=1879306&r1=1879305&r2=1879306&view=diff
==============================================================================
--- httpd/httpd/trunk/include/ap_mmn.h (original)
+++ httpd/httpd/trunk/include/ap_mmn.h Sun Jun 28 13:17:26 2020
@@ -643,6 +643,8 @@
  *                         Add bnotes to request_rec.
  * 20200420.8 (2.5.1-dev)  Add dav_get_provider(), dav_open_lockdb() and
  *                         dav_close_lockdb() mod_dav.h.
+ * 20200420.9 (2.5.1-dev)  Add hooks deliver_report and gather_reports to
+ *                         mod_dav.h.
  */
 
 #define MODULE_MAGIC_COOKIE 0x41503235UL /* "AP25" */
@@ -650,7 +652,7 @@
 #ifndef MODULE_MAGIC_NUMBER_MAJOR
 #define MODULE_MAGIC_NUMBER_MAJOR 20200420
 #endif
-#define MODULE_MAGIC_NUMBER_MINOR 8            /* 0...n */
+#define MODULE_MAGIC_NUMBER_MINOR 9            /* 0...n */
 
 /**
  * Determine if the server's current MODULE_MAGIC_NUMBER is at least a

Modified: httpd/httpd/trunk/modules/dav/main/mod_dav.c
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/mod_dav.c?rev=1879306&r1=1879305&r2=1879306&view=diff
==============================================================================
--- httpd/httpd/trunk/modules/dav/main/mod_dav.c (original)
+++ httpd/httpd/trunk/modules/dav/main/mod_dav.c Sun Jun 28 13:17:26 2020
@@ -5005,6 +5005,8 @@ APR_HOOK_STRUCT(
     APR_HOOK_LINK(gather_propsets)
     APR_HOOK_LINK(find_liveprop)
     APR_HOOK_LINK(insert_all_liveprops)
+    APR_HOOK_LINK(deliver_report)
+    APR_HOOK_LINK(gather_reports)
     )
 
 APR_IMPLEMENT_EXTERNAL_HOOK_VOID(dav, DAV, gather_propsets,
@@ -5021,3 +5023,16 @@ APR_IMPLEMENT_EXTERNAL_HOOK_VOID(dav, DA
                                  (request_rec *r, const dav_resource *resource,
                                   dav_prop_insert what, apr_text_header *phdr),
                                  (r, resource, what, phdr))
+
+APR_IMPLEMENT_EXTERNAL_HOOK_RUN_FIRST(dav, DAV, int, deliver_report,
+                                      (request_rec *r,
+                                       const dav_resource *resource,
+                                       const apr_xml_doc *doc,
+                                       ap_filter_t *output, dav_error **err),
+                                      (r, resource, doc, output, err), DECLINED)
+
+APR_IMPLEMENT_EXTERNAL_HOOK_VOID(dav, DAV, gather_reports,
+                                   (request_rec *r, const dav_resource *resource,
+                                    apr_array_header_t *reports, dav_error **err),
+                                   (r, resource, reports, err))
+

Modified: httpd/httpd/trunk/modules/dav/main/mod_dav.h
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/mod_dav.h?rev=1879306&r1=1879305&r2=1879306&view=diff
==============================================================================
--- httpd/httpd/trunk/modules/dav/main/mod_dav.h (original)
+++ httpd/httpd/trunk/modules/dav/main/mod_dav.h Sun Jun 28 13:17:26 2020
@@ -650,10 +650,10 @@ DAV_DECLARE(void) dav_xmlns_generate(dav
 ** mod_dav 1.0). There are too many dependencies between a dav_resource
 ** (defined by <repos>) and the other functionality.
 **
-** Live properties are not part of the dav_provider structure because they
-** are handled through the APR_HOOK interface (to allow for multiple liveprop
-** providers). The core always provides some properties, and then a given
-** provider will add more properties.
+** Live properties and report extensions are not part of the dav_provider
+** structure because they are handled through the APR_HOOK interface (to
+** allow for multiple providers). The core always provides some
+** properties, and then a given provider will add more properties.
 **
 ** Some providers may need to associate a context with the dav_provider
 ** structure -- the ctx field is available for storing this context. Just
@@ -717,6 +717,34 @@ APR_DECLARE_EXTERNAL_HOOK(dav, DAV, void
                          (request_rec *r, const dav_resource *resource,
                           dav_prop_insert what, apr_text_header *phdr))
 
+/*
+** deliver_report: given a parsed report request, process the request
+**                 an deliver the resulting report.
+**
+** The hook implementer should decide whether it should handle the given
+** report, and if so, write the response to the output filter. If the
+** report is not relevant, return DECLINED.
+*/
+APR_DECLARE_EXTERNAL_HOOK(dav, DAV, int, deliver_report,
+                         (request_rec *r,
+                          const dav_resource *resource,
+                          const apr_xml_doc *doc,
+                          ap_filter_t *output, dav_error **err))
+
+/*
+** gather_reports: get all reports.
+**
+** The hook implementor should push one or more dav_report_elem structures
+** containing report names into the specified array. These names are returned
+** in the DAV:supported-reports-set property to let clients know
+** what reports are supported by the installation.
+**
+*/
+APR_DECLARE_EXTERNAL_HOOK(dav, DAV, void, gather_reports,
+                          (request_rec *r, const dav_resource *resource,
+                           apr_array_header_t *reports, dav_error **err))
+
+
 DAV_DECLARE(const dav_hooks_locks *) dav_get_lock_hooks(request_rec *r);
 DAV_DECLARE(const dav_hooks_propdb *) dav_get_propdb_hooks(request_rec *r);
 DAV_DECLARE(const dav_hooks_vsn *) dav_get_vsn_hooks(request_rec *r);



Re: svn commit: r1879306 - in /httpd/httpd/trunk: CHANGES include/ap_mmn.h modules/dav/main/mod_dav.c modules/dav/main/mod_dav.h

Posted by Graham Leggett <mi...@sharp.fm>.
On 28 Jun 2020, at 15:33, Greg Stein <gs...@gmail.com> wrote:

> Hey Graham ... what's the goal with exposing these things? (this rev, and prior) ... I don't see any emails describing "why". Generally, it would be "shrug" ... but you're changing the MMN, and I don't see any discussion on why/goal.

Picking up the CalDAV work again.

Since mod_dav was written there have been a host of RFCs that use the REPORT method, but mod_dav is written in such a way that only a versioning implementation is allowed to use REPORT.

This has led to some offensive workarounds (an input filter to try and undo the read of a report after finding the report wasn’t for that module, yuck yuck yuck).

Two works-in-progress:

https://github.com/minfrin/mod_dav_calendar - RFC4791 Calendaring Extensions to WebDAV
https://github.com/minfrin/mod_dav_access - RFC3744 WebDav Access Control Protocol

CalDAV mandates strong ETags as per https://tools.ietf.org/html/rfc4791#section-5.3.4, and Apple Calendar breaks decisively without it.

Regards,
Graham
—


Re: svn commit: r1879306 - in /httpd/httpd/trunk: CHANGES include/ap_mmn.h modules/dav/main/mod_dav.c modules/dav/main/mod_dav.h

Posted by Greg Stein <gs...@gmail.com>.
Hey Graham ... what's the goal with exposing these things? (this rev, and
prior) ... I don't see any emails describing "why". Generally, it would be
"shrug" ... but you're changing the MMN, and I don't see any discussion on
why/goal.

Thanks,
-g


On Sun, Jun 28, 2020 at 8:17 AM <mi...@apache.org> wrote:

> Author: minfrin
> Date: Sun Jun 28 13:17:26 2020
> New Revision: 1879306
>
> URL: http://svn.apache.org/viewvc?rev=1879306&view=rev
> Log:
> Add hooks deliver_report and gather_reports to mod_dav.h. Allows other
> modules apart from versioning implementations to handle the REPORT method.
>
> Modified:
>     httpd/httpd/trunk/CHANGES
>     httpd/httpd/trunk/include/ap_mmn.h
>     httpd/httpd/trunk/modules/dav/main/mod_dav.c
>     httpd/httpd/trunk/modules/dav/main/mod_dav.h
>
> Modified: httpd/httpd/trunk/CHANGES
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?rev=1879306&r1=1879305&r2=1879306&view=diff
>
> ==============================================================================
> --- httpd/httpd/trunk/CHANGES [utf-8] (original)
> +++ httpd/httpd/trunk/CHANGES [utf-8] Sun Jun 28 13:17:26 2020
> @@ -1,6 +1,10 @@
>                                                           -*- coding:
> utf-8 -*-
>  Changes with Apache 2.5.1
>
> +  *) Add hooks deliver_report and gather_reports to mod_dav.h. Allows
> other
> +     modules apart from versioning implementations to handle the REPORT
> method.
> +     [Graham Leggett]
> +
>    *) Add dav_get_provider(), dav_open_lockdb() and dav_close_lockdb()
> mod_dav.h.
>       [Graham Leggett]
>
>
> Modified: httpd/httpd/trunk/include/ap_mmn.h
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/include/ap_mmn.h?rev=1879306&r1=1879305&r2=1879306&view=diff
>
> ==============================================================================
> --- httpd/httpd/trunk/include/ap_mmn.h (original)
> +++ httpd/httpd/trunk/include/ap_mmn.h Sun Jun 28 13:17:26 2020
> @@ -643,6 +643,8 @@
>   *                         Add bnotes to request_rec.
>   * 20200420.8 (2.5.1-dev)  Add dav_get_provider(), dav_open_lockdb() and
>   *                         dav_close_lockdb() mod_dav.h.
> + * 20200420.9 (2.5.1-dev)  Add hooks deliver_report and gather_reports to
> + *                         mod_dav.h.
>   */
>
>  #define MODULE_MAGIC_COOKIE 0x41503235UL /* "AP25" */
> @@ -650,7 +652,7 @@
>  #ifndef MODULE_MAGIC_NUMBER_MAJOR
>  #define MODULE_MAGIC_NUMBER_MAJOR 20200420
>  #endif
> -#define MODULE_MAGIC_NUMBER_MINOR 8            /* 0...n */
> +#define MODULE_MAGIC_NUMBER_MINOR 9            /* 0...n */
>
>  /**
>   * Determine if the server's current MODULE_MAGIC_NUMBER is at least a
>
> Modified: httpd/httpd/trunk/modules/dav/main/mod_dav.c
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/mod_dav.c?rev=1879306&r1=1879305&r2=1879306&view=diff
>
> ==============================================================================
> --- httpd/httpd/trunk/modules/dav/main/mod_dav.c (original)
> +++ httpd/httpd/trunk/modules/dav/main/mod_dav.c Sun Jun 28 13:17:26 2020
> @@ -5005,6 +5005,8 @@ APR_HOOK_STRUCT(
>      APR_HOOK_LINK(gather_propsets)
>      APR_HOOK_LINK(find_liveprop)
>      APR_HOOK_LINK(insert_all_liveprops)
> +    APR_HOOK_LINK(deliver_report)
> +    APR_HOOK_LINK(gather_reports)
>      )
>
>  APR_IMPLEMENT_EXTERNAL_HOOK_VOID(dav, DAV, gather_propsets,
> @@ -5021,3 +5023,16 @@ APR_IMPLEMENT_EXTERNAL_HOOK_VOID(dav, DA
>                                   (request_rec *r, const dav_resource
> *resource,
>                                    dav_prop_insert what, apr_text_header
> *phdr),
>                                   (r, resource, what, phdr))
> +
> +APR_IMPLEMENT_EXTERNAL_HOOK_RUN_FIRST(dav, DAV, int, deliver_report,
> +                                      (request_rec *r,
> +                                       const dav_resource *resource,
> +                                       const apr_xml_doc *doc,
> +                                       ap_filter_t *output, dav_error
> **err),
> +                                      (r, resource, doc, output, err),
> DECLINED)
> +
> +APR_IMPLEMENT_EXTERNAL_HOOK_VOID(dav, DAV, gather_reports,
> +                                   (request_rec *r, const dav_resource
> *resource,
> +                                    apr_array_header_t *reports,
> dav_error **err),
> +                                   (r, resource, reports, err))
> +
>
> Modified: httpd/httpd/trunk/modules/dav/main/mod_dav.h
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/mod_dav.h?rev=1879306&r1=1879305&r2=1879306&view=diff
>
> ==============================================================================
> --- httpd/httpd/trunk/modules/dav/main/mod_dav.h (original)
> +++ httpd/httpd/trunk/modules/dav/main/mod_dav.h Sun Jun 28 13:17:26 2020
> @@ -650,10 +650,10 @@ DAV_DECLARE(void) dav_xmlns_generate(dav
>  ** mod_dav 1.0). There are too many dependencies between a dav_resource
>  ** (defined by <repos>) and the other functionality.
>  **
> -** Live properties are not part of the dav_provider structure because they
> -** are handled through the APR_HOOK interface (to allow for multiple
> liveprop
> -** providers). The core always provides some properties, and then a given
> -** provider will add more properties.
> +** Live properties and report extensions are not part of the dav_provider
> +** structure because they are handled through the APR_HOOK interface (to
> +** allow for multiple providers). The core always provides some
> +** properties, and then a given provider will add more properties.
>  **
>  ** Some providers may need to associate a context with the dav_provider
>  ** structure -- the ctx field is available for storing this context. Just
> @@ -717,6 +717,34 @@ APR_DECLARE_EXTERNAL_HOOK(dav, DAV, void
>                           (request_rec *r, const dav_resource *resource,
>                            dav_prop_insert what, apr_text_header *phdr))
>
> +/*
> +** deliver_report: given a parsed report request, process the request
> +**                 an deliver the resulting report.
> +**
> +** The hook implementer should decide whether it should handle the given
> +** report, and if so, write the response to the output filter. If the
> +** report is not relevant, return DECLINED.
> +*/
> +APR_DECLARE_EXTERNAL_HOOK(dav, DAV, int, deliver_report,
> +                         (request_rec *r,
> +                          const dav_resource *resource,
> +                          const apr_xml_doc *doc,
> +                          ap_filter_t *output, dav_error **err))
> +
> +/*
> +** gather_reports: get all reports.
> +**
> +** The hook implementor should push one or more dav_report_elem structures
> +** containing report names into the specified array. These names are
> returned
> +** in the DAV:supported-reports-set property to let clients know
> +** what reports are supported by the installation.
> +**
> +*/
> +APR_DECLARE_EXTERNAL_HOOK(dav, DAV, void, gather_reports,
> +                          (request_rec *r, const dav_resource *resource,
> +                           apr_array_header_t *reports, dav_error **err))
> +
> +
>  DAV_DECLARE(const dav_hooks_locks *) dav_get_lock_hooks(request_rec *r);
>  DAV_DECLARE(const dav_hooks_propdb *) dav_get_propdb_hooks(request_rec
> *r);
>  DAV_DECLARE(const dav_hooks_vsn *) dav_get_vsn_hooks(request_rec *r);
>
>
>