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Implement fake DAV LOCK

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PUBLISHED_FROM=0ea0d8623ab3f59de8996f6b18712d1b3fb120f8
This commit is contained in:
Alexander Alashkin 2016-01-11 12:52:35 +02:00 committed by rojer
parent 81d977c720
commit d333c3c09e
2 changed files with 55 additions and 3 deletions
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3
examples/simplest_web_server/Makefile
View File

@ -1,6 +1,7 @@
PROG = simplest_web_server
SOURCES = $(PROG).c ../../mongoose.c
CFLAGS = -W -Wall -I../.. $(CFLAGS_EXTRA) -DMG_DISABLE_DAV_AUTH
CFLAGS = -W -Wall -I../.. $(CFLAGS_EXTRA) -DMG_DISABLE_DAV_AUTH \
-DMG_ENABLE_FAKE_DAVLOCK
all: $(PROG)

55
mongoose.c
View File

@ -5532,6 +5532,40 @@ static void handle_propfind(struct mg_connection *nc, const char *path,
}
}
#ifdef MG_ENABLE_FAKE_DAVLOCK
/*
* Windows explorer (probably there are another WebDav clients like it)
* requires LOCK support in webdav. W/out this, it still works, but fails
* to save file: shows error message and offers "Save As".
* "Save as" works, but this message is very annoying.
* This is fake lock, which doesn't lock something, just returns LOCK token,
* UNLOCK always answers "OK".
* With this fake LOCK Windows Explorer looks happy and saves file.
* NOTE: that is not DAV LOCK imlementation, it is just a way to shut up
* Windows native DAV client. This is why FAKE LOCK is not enabed by default
*/
static void handle_lock(struct mg_connection *nc, const char *path) {
static const char *reply =
"HTTP/1.1 207 Multi-Status\r\n"
"Connection: close\r\n"
"Content-Type: text/xml; charset=utf-8\r\n\r\n"
"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
"<d:multistatus xmlns:d='DAV:'>\n"
"<D:lockdiscovery>\n"
"<D:activelock>\n"
"<D:locktoken>\n"
"<D:href>\n"
"opaquelocktoken:%s%u"
"</D:href>"
"</D:locktoken>"
"</D:activelock>\n"
"</D:lockdiscovery>"
"</d:multistatus>\n";
mg_printf(nc, reply, path, (unsigned int) time(NULL));
nc->flags |= MG_F_SEND_AND_CLOSE;
}
#endif
static void handle_mkcol(struct mg_connection *nc, const char *path,
struct http_message *hm) {
int status_code = 500;
@ -5679,8 +5713,21 @@ static void handle_put(struct mg_connection *nc, const char *path,
#endif /* MG_DISABLE_DAV */
static int is_dav_request(const struct mg_str *s) {
return !mg_vcmp(s, "PUT") || !mg_vcmp(s, "DELETE") || !mg_vcmp(s, "MKCOL") ||
!mg_vcmp(s, "PROPFIND") || !mg_vcmp(s, "MOVE");
static const char *methods[] = {"PUT", "DELETE", "MKCOL", "PROPFIND", "MOVE"
#ifdef MG_ENABLE_FAKE_DAVLOCK
,
"LOCK", "UNLOCK"
#endif
};
size_t i;
for (i = 0; i < ARRAY_SIZE(methods); i++) {
if (mg_vcmp(s, methods[i]) == 0) {
return 1;
}
}
return 0;
}
/*
@ -6374,6 +6421,10 @@ void mg_send_http_file(struct mg_connection *nc, char *path,
handle_put(nc, path, hm);
} else if (!mg_vcmp(&hm->method, "MOVE")) {
handle_move(nc, opts, path, hm);
#ifdef MG_ENABLE_FAKE_DAVLOCK
} else if (!mg_vcmp(&hm->method, "LOCK")) {
handle_lock(nc, path);
#endif
#endif
} else if (!mg_vcmp(&hm->method, "OPTIONS")) {
send_options(nc);