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Bug 744: Make removal of double slashes more protocol specific

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Add a boolean protocol flag which says whether "//" in the path
part of an URI can be safely substituted with "/". Be conservative
and enable it only for file://, ftp:// and nntp[s]://. Other
can be turned on later, if needed.

Generalizes the fix from 58b3b1e75239fac7f48d54609b4033c228d6a5da.
This commit is contained in:
Jonas Fonseca 2007-09-11 14:14:17 +02:00
parent 5d5f7fc078
commit 8393dc901e
3 changed files with 35 additions and 24 deletions
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49
src/protocol/protocol.c
View File

@ -52,34 +52,35 @@ struct protocol_backend {
unsigned int need_slash_after_host:1;
unsigned int free_syntax:1;
unsigned int need_ssl:1;
unsigned int keep_double_slashes:1;
};
static const struct protocol_backend protocol_backends[] = {
{ "about", 0, about_protocol_handler, 0, 0, 1, 0 },
{ "bittorrent", 0, bittorrent_protocol_handler, 0, 0, 1, 0 },
{ "data", 0, data_protocol_handler, 0, 0, 1, 0 },
{ "file", 0, file_protocol_handler, 1, 0, 0, 0 },
{ "finger", 79, finger_protocol_handler, 1, 1, 0, 0 },
{ "fsp", 21, fsp_protocol_handler, 1, 1, 0, 0 },
{ "ftp", 21, ftp_protocol_handler, 1, 1, 0, 0 },
{ "gopher", 70, gopher_protocol_handler, 1, 1, 0, 0 },
{ "http", 80, http_protocol_handler, 1, 1, 0, 0 },
{ "https", 443, https_protocol_handler, 1, 1, 0, 1 },
{ "javascript", 0, NULL, 0, 0, 1, 0 },
{ "news", 0, news_protocol_handler, 0, 0, 1, 0 },
{ "nntp", 119, nntp_protocol_handler, 1, 1, 0, 0 },
{ "nntps", 563, nntp_protocol_handler, 1, 1, 0, 1 },
{ "proxy", 3128, proxy_protocol_handler, 1, 1, 0, 0 },
{ "smb", 139, smb_protocol_handler, 1, 1, 0, 0 },
{ "snews", 0, news_protocol_handler, 0, 0, 1, 0 },
{ "about", 0, about_protocol_handler, 0, 0, 1, 0, 1 },
{ "bittorrent", 0, bittorrent_protocol_handler, 0, 0, 1, 0, 1 },
{ "data", 0, data_protocol_handler, 0, 0, 1, 0, 1 },
{ "file", 0, file_protocol_handler, 1, 0, 0, 0, 0 },
{ "finger", 79, finger_protocol_handler, 1, 1, 0, 0, 1 },
{ "fsp", 21, fsp_protocol_handler, 1, 1, 0, 0, 1 },
{ "ftp", 21, ftp_protocol_handler, 1, 1, 0, 0, 0 },
{ "gopher", 70, gopher_protocol_handler, 1, 1, 0, 0, 1 },
{ "http", 80, http_protocol_handler, 1, 1, 0, 0, 1 },
{ "https", 443, https_protocol_handler, 1, 1, 0, 1, 1 },
{ "javascript", 0, NULL, 0, 0, 1, 0, 1 },
{ "news", 0, news_protocol_handler, 0, 0, 1, 0, 1 },
{ "nntp", 119, nntp_protocol_handler, 1, 1, 0, 0, 0 },
{ "nntps", 563, nntp_protocol_handler, 1, 1, 0, 1, 0 },
{ "proxy", 3128, proxy_protocol_handler, 1, 1, 0, 0, 1 },
{ "smb", 139, smb_protocol_handler, 1, 1, 0, 0, 1 },
{ "snews", 0, news_protocol_handler, 0, 0, 1, 0, 1 },
/* Keep these last! */
{ NULL, 0, NULL, 0, 0, 1, 0 },
{ NULL, 0, NULL, 0, 0, 1, 0, 1 },
{ "user", 0, NULL, 0, 0, 0, 0 },
{ "user", 0, NULL, 0, 0, 0, 0, 1 },
/* Internal protocol for mapping to protocol.user.* handlers. Placed
* last because it's checked first and else should be ignored. */
{ "custom", 0, NULL, 0, 0, 1, 0 },
{ "custom", 0, NULL, 0, 0, 1, 0, 1 },
};
@ -174,6 +175,14 @@ get_protocol_need_slash_after_host(enum protocol protocol)
return protocol_backends[protocol].need_slash_after_host;
}
int
get_protocol_keep_double_slashes(enum protocol protocol)
{
assert(VALID_PROTOCOL(protocol));
if_assert_failed return 0;
return protocol_backends[protocol].keep_double_slashes;
}
int
get_protocol_free_syntax(enum protocol protocol)
{

1
src/protocol/protocol.h
View File

@ -44,6 +44,7 @@ typedef void (protocol_external_handler_T)(struct session *, struct uri *);
int get_protocol_port(enum protocol protocol);
int get_protocol_need_slashes(enum protocol protocol);
int get_protocol_keep_double_slashes(enum protocol protocol);
int get_protocol_need_slash_after_host(enum protocol protocol);
int get_protocol_free_syntax(enum protocol protocol);
int get_protocol_need_ssl(enum protocol protocol);

9
src/protocol/uri.c
View File

@ -673,7 +673,7 @@ normalize_uri(struct uri *uri, unsigned char *uristring)
{
unsigned char *parse_string = uristring;
unsigned char *src, *dest, *path;
int need_slash = 0;
int need_slash = 0, keep_dslash = 1;
int parse = (uri == NULL);
struct uri uri_struct;
@ -701,8 +701,10 @@ normalize_uri(struct uri *uri, unsigned char *uristring)
if (get_protocol_free_syntax(uri->protocol))
return uristring;
if (uri->protocol != PROTOCOL_UNKNOWN)
if (uri->protocol != PROTOCOL_UNKNOWN) {
need_slash = get_protocol_need_slash_after_host(uri->protocol);
keep_dslash = get_protocol_keep_double_slashes(uri->protocol);
}
path = uri->data - need_slash;
dest = src = path;
@ -766,8 +768,7 @@ normalize_uri(struct uri *uri, unsigned char *uristring)
continue;
}
} else if (is_uri_dir_sep(uri, src[1]) &&
uri->protocol == PROTOCOL_FILE) {
} else if (is_uri_dir_sep(uri, src[1]) && !keep_dslash) {
/* // - ignore first '/'. */
src += 1;
continue;