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esp
mongoose
Commits
03e73782
Commit
03e73782
authored
Dec 05, 2013
by
Sergey Lyubka
Browse files
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Email Patches
Plain Diff
Made URI handler work
parent
95d88814
Changes
2
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Showing
2 changed files
with
207 additions
and
233 deletions
+207
-233
core.c
build/src/core.c
+197
-227
core.h
build/src/core.h
+10
-6
No files found.
build/src/core.c
View file @
03e73782
...
...
@@ -66,6 +66,7 @@ typedef struct _stati64 file_stat_t;
#define S_ISDIR(x) ((x) & _S_IFDIR)
#define sleep(x) Sleep((x) * 1000)
#define stat(x, y) _stati64((x), (y))
#define to64(x) _atoi64(x)
#ifndef va_copy
#define va_copy(x,y) x = y
#endif // MINGW #defines va_copy
...
...
@@ -89,6 +90,7 @@ typedef struct stat file_stat_t;
#define mutex_unlock(x) pthread_mutex_unlock(x)
#define INVALID_SOCKET ((sock_t) -1)
#define INT64_FMT PRId64
#define to64(x) strtoll(x, NULL, 10)
#endif
//#include "mongoose.h"
...
...
@@ -120,7 +122,7 @@ struct linked_list_link { struct linked_list_link *prev, *next; };
#endif
#ifdef ENABLE_DBG
#define DBG(x) do { printf("%s::%s
()
", __FILE__, __func__); \
#define DBG(x) do { printf("%s::%s ", __FILE__, __func__); \
printf x; putchar('\n'); fflush(stdout); } while(0)
#else
#define DBG(x)
...
...
@@ -197,6 +199,7 @@ struct iobuf {
union
endpoint
{
int
fd
;
// Opened regular local file
void
*
ssl
;
// SSL descriptor
struct
uri_handler
*
uh
;
// URI handler user function
};
enum
endpoint_type
{
EP_NONE
,
EP_FILE
,
EP_USER
};
...
...
@@ -207,16 +210,15 @@ struct connection {
struct
linked_list_link
link
;
// Linkage to server->active_connections
struct
mg_server
*
server
;
sock_t
client_sock
;
// Connected client
union
socket_address
csa
;
// Client's socket address
struct
iobuf
local_iobuf
;
struct
iobuf
remote_iobuf
;
union
endpoint
endpoint
;
enum
endpoint_type
endpoint_type
;
time_t
expire_time
;
char
*
path_info
;
int
request_len
;
int
flags
;
int
status_code
;
char
*
request
;
int
request_len
;
// Request length, including last \r\n after last header
int
flags
;
// CONN_* flags: CONN_CLOSE, CONN_SPOOL_DONE, etc
mutex_t
mutex
;
// Guards concurrent mg_write() calls
};
...
...
@@ -326,20 +328,6 @@ int mg_start_thread(void *(*f)(void *), void *p) {
#endif
}
#if 0
static int call_user(int event_type, struct mg_connection *conn, void *p) {
if (conn != NULL && conn->server != NULL) {
conn->event.user_data = conn->server->user_data;
conn->event.type = event_type;
conn->event.event_param = p;
conn->event.request_info = &conn->request_info;
conn->event.conn = conn;
}
return !conn || !conn->server || !conn->server->event_handler ? 0 :
conn->server->event_handler(&conn->event);
}
#endif
static
void
set_close_on_exec
(
int
fd
)
{
#ifdef _WIN32
(
void
)
SetHandleInformation
((
HANDLE
)
fd
,
HANDLE_FLAG_INHERIT
,
0
);
...
...
@@ -565,29 +553,19 @@ static struct connection *accept_new_connection(struct mg_server *server) {
sock_t
sock
=
INVALID_SOCKET
;
struct
connection
*
conn
=
NULL
;
// NOTE(lsm): on Windows, sock is always > FD_SETSIZE
if
((
sock
=
accept
(
server
->
listening_sock
,
&
sa
.
sa
,
&
len
))
==
INVALID_SOCKET
)
{
#if 0
} else if (sock >= FD_SETSIZE) {
DBG((">fd_setsize"));
closesocket(sock);
#endif
}
else
if
(
!
check_acl
(
server
->
config_options
[
ACCESS_CONTROL_LIST
],
ntohl
(
*
(
uint32_t
*
)
&
sa
.
sin
.
sin_addr
)))
{
// NOTE(lsm): check_acl doesn't work for IPv6
closesocket
(
sock
);
}
else
if
((
conn
=
(
struct
connection
*
)
calloc
(
1
,
sizeof
(
*
conn
)
+
MAX_REQUEST_SIZE
))
==
NULL
)
{
}
else
if
((
conn
=
(
struct
connection
*
)
calloc
(
1
,
sizeof
(
*
conn
)))
==
NULL
)
{
closesocket
(
sock
);
}
else
{
// Put so socket structure into the queue
set_close_on_exec
(
sock
);
set_non_blocking_mode
(
sock
);
conn
->
server
=
server
;
conn
->
client_sock
=
sock
;
conn
->
csa
=
sa
;
conn
->
local_iobuf
.
buf
=
(
char
*
)
conn
+
sizeof
(
*
conn
);
conn
->
local_iobuf
.
size
=
MAX_REQUEST_SIZE
;
conn
->
remote_iobuf
.
buf
=
(
char
*
)
calloc
(
1
,
IOBUF_SIZE
);
conn
->
remote_iobuf
.
size
=
IOBUF_SIZE
;
mutex_init
(
&
conn
->
mutex
);
LINKED_LIST_ADD_TO_FRONT
(
&
server
->
active_connections
,
&
conn
->
link
);
DBG
((
"added conn %p"
,
conn
));
...
...
@@ -600,7 +578,9 @@ static void close_conn(struct connection *conn) {
DBG
((
"closing %p"
,
conn
));
LINKED_LIST_REMOVE
(
&
conn
->
link
);
closesocket
(
conn
->
client_sock
);
free
(
conn
->
remote_iobuf
.
buf
);
free
(
conn
->
request
);
// It's OK to free(NULL)
free
(
conn
->
remote_iobuf
.
buf
);
// It's OK to free(NULL)
free
(
conn
->
local_iobuf
.
buf
);
// It's OK to free(NULL)
mutex_destroy
(
&
conn
->
mutex
);
free
(
conn
);
}
...
...
@@ -648,6 +628,50 @@ static char *skip(char **buf, const char *delimiters) {
return
begin_word
;
}
// Protect against directory disclosure attack by removing '..',
// excessive '/' and '\' characters
static
void
remove_double_dots_and_double_slashes
(
char
*
s
)
{
char
*
p
=
s
;
while
(
*
s
!=
'\0'
)
{
*
p
++
=
*
s
++
;
if
(
s
[
-
1
]
==
'/'
||
s
[
-
1
]
==
'\\'
)
{
// Skip all following slashes, backslashes and double-dots
while
(
s
[
0
]
!=
'\0'
)
{
if
(
s
[
0
]
==
'/'
||
s
[
0
]
==
'\\'
)
{
s
++
;
}
else
if
(
s
[
0
]
==
'.'
&&
s
[
1
]
==
'.'
)
{
s
+=
2
;
}
else
{
break
;
}
}
}
}
*
p
=
'\0'
;
}
int
mg_url_decode
(
const
char
*
src
,
int
src_len
,
char
*
dst
,
int
dst_len
,
int
is_form_url_encoded
)
{
int
i
,
j
,
a
,
b
;
#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
for
(
i
=
j
=
0
;
i
<
src_len
&&
j
<
dst_len
-
1
;
i
++
,
j
++
)
{
if
(
src
[
i
]
==
'%'
&&
i
<
src_len
-
2
&&
isxdigit
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
1
))
&&
isxdigit
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
2
)))
{
a
=
tolower
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
1
));
b
=
tolower
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
2
));
dst
[
j
]
=
(
char
)
((
HEXTOI
(
a
)
<<
4
)
|
HEXTOI
(
b
));
i
+=
2
;
}
else
if
(
is_form_url_encoded
&&
src
[
i
]
==
'+'
)
{
dst
[
j
]
=
' '
;
}
else
{
dst
[
j
]
=
src
[
i
];
}
}
dst
[
j
]
=
'\0'
;
// Null-terminate the destination
return
i
>=
src_len
?
j
:
-
1
;
}
// Parse HTTP headers from the given buffer, advance buffer to the point
// where parsing stopped.
static
void
parse_http_headers
(
char
**
buf
,
struct
mg_connection
*
ri
)
{
...
...
@@ -674,12 +698,12 @@ static int is_valid_http_method(const char *method) {
// This function modifies the buffer by NUL-terminating
// HTTP request components, header names and header values.
static
int
parse_http_message
(
char
*
buf
,
int
len
,
struct
mg_connection
*
ri
)
{
int
is_request
,
request_len
=
get_request_len
((
unsigned
char
*
)
buf
,
len
)
;
if
(
request_len
>
0
)
{
// Reset attributes. DO NOT TOUCH is_ssl,
remote_ip, remote_port
int
is_request
,
n
;
// Reset attributes. DO NOT TOUCH
remote_ip, remote_port
ri
->
request_method
=
ri
->
uri
=
ri
->
http_version
=
NULL
;
ri
->
num_headers
=
0
;
buf
[
request_
len
-
1
]
=
'\0'
;
buf
[
len
-
1
]
=
'\0'
;
// RFC says that all initial whitespaces should be ingored
while
(
*
buf
!=
'\0'
&&
isspace
(
*
(
unsigned
char
*
)
buf
))
{
...
...
@@ -694,15 +718,22 @@ static int parse_http_message(char *buf, int len, struct mg_connection *ri) {
is_request
=
is_valid_http_method
(
ri
->
request_method
);
if
((
is_request
&&
memcmp
(
ri
->
http_version
,
"HTTP/"
,
5
)
!=
0
)
||
(
!
is_request
&&
memcmp
(
ri
->
request_method
,
"HTTP/"
,
5
)
!=
0
))
{
request_
len
=
-
1
;
len
=
-
1
;
}
else
{
if
(
is_request
)
{
ri
->
http_version
+=
5
;
}
parse_http_headers
(
&
buf
,
ri
);
if
((
ri
->
query_string
=
strchr
(
ri
->
uri
,
'?'
))
!=
NULL
)
{
*
(
char
*
)
ri
->
query_string
++
=
'\0'
;
}
n
=
(
int
)
strlen
(
ri
->
uri
);
mg_url_decode
(
ri
->
uri
,
n
,
(
char
*
)
ri
->
uri
,
n
+
1
,
0
);
remove_double_dots_and_double_slashes
((
char
*
)
ri
->
uri
);
}
return
request_len
;
return
len
;
}
static
int
lowercase
(
const
char
*
s
)
{
...
...
@@ -770,50 +801,6 @@ static int match_prefix(const char *pattern, int pattern_len, const char *str) {
return
j
;
}
// Protect against directory disclosure attack by removing '..',
// excessive '/' and '\' characters
static
void
remove_double_dots_and_double_slashes
(
char
*
s
)
{
char
*
p
=
s
;
while
(
*
s
!=
'\0'
)
{
*
p
++
=
*
s
++
;
if
(
s
[
-
1
]
==
'/'
||
s
[
-
1
]
==
'\\'
)
{
// Skip all following slashes, backslashes and double-dots
while
(
s
[
0
]
!=
'\0'
)
{
if
(
s
[
0
]
==
'/'
||
s
[
0
]
==
'\\'
)
{
s
++
;
}
else
if
(
s
[
0
]
==
'.'
&&
s
[
1
]
==
'.'
)
{
s
+=
2
;
}
else
{
break
;
}
}
}
}
*
p
=
'\0'
;
}
int
mg_url_decode
(
const
char
*
src
,
int
src_len
,
char
*
dst
,
int
dst_len
,
int
is_form_url_encoded
)
{
int
i
,
j
,
a
,
b
;
#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
for
(
i
=
j
=
0
;
i
<
src_len
&&
j
<
dst_len
-
1
;
i
++
,
j
++
)
{
if
(
src
[
i
]
==
'%'
&&
i
<
src_len
-
2
&&
isxdigit
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
1
))
&&
isxdigit
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
2
)))
{
a
=
tolower
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
1
));
b
=
tolower
(
*
(
const
unsigned
char
*
)
(
src
+
i
+
2
));
dst
[
j
]
=
(
char
)
((
HEXTOI
(
a
)
<<
4
)
|
HEXTOI
(
b
));
i
+=
2
;
}
else
if
(
is_form_url_encoded
&&
src
[
i
]
==
'+'
)
{
dst
[
j
]
=
' '
;
}
else
{
dst
[
j
]
=
src
[
i
];
}
}
dst
[
j
]
=
'\0'
;
// Null-terminate the destination
return
i
>=
src_len
?
j
:
-
1
;
}
// Return HTTP header value, or NULL if not found.
const
char
*
mg_get_header
(
const
struct
mg_connection
*
ri
,
const
char
*
s
)
{
int
i
;
...
...
@@ -867,67 +854,40 @@ static int convert_uri_to_file_name(struct connection *conn, char *buf,
}
static
int
spool
(
struct
iobuf
*
io
,
const
void
*
buf
,
int
len
)
{
static
const
float
mult
=
1
.
2
;
char
*
p
=
NULL
;
int
new_len
=
io
->
len
+
len
;
int
new_len
=
0
;
DBG
((
"%d %d %d"
,
len
,
io
->
len
,
io
->
size
));
assert
(
io
->
len
>=
0
);
assert
(
io
->
len
<=
io
->
size
);
//DBG(("1. %d %d %d", len, io->len, io->size));
if
(
len
<=
0
)
{
}
else
if
(
new_len
<
io
->
size
)
{
}
else
if
(
(
new_len
=
io
->
len
+
len
)
<
io
->
size
)
{
memcpy
(
io
->
buf
+
io
->
len
,
buf
,
len
);
io
->
len
+=
len
;
}
else
if
((
p
=
(
char
*
)
realloc
(
io
->
buf
,
new_len
*
2
))
!=
NULL
)
{
io
->
len
=
new_
len
;
}
else
if
((
p
=
(
char
*
)
realloc
(
io
->
buf
,
new_len
*
mult
))
!=
NULL
)
{
io
->
buf
=
p
;
memcpy
(
io
->
buf
+
io
->
len
,
buf
,
len
);
io
->
len
=
new_len
;
io
->
size
=
new_len
*
2
;
}
else
{
len
=
0
;
}
return
len
;
}
static
int
vspool
(
struct
iobuf
*
io
,
const
char
*
fmt
,
va_list
ap
)
{
char
*
ptr
=
io
->
buf
;
va_list
ap_copy
;
int
len
;
va_copy
(
ap_copy
,
ap
);
len
=
vsnprintf
(
NULL
,
0
,
fmt
,
ap_copy
);
if
(
len
<=
0
)
{
}
else
if
(
len
<
io
->
size
-
io
->
len
||
(
ptr
=
(
char
*
)
realloc
(
io
->
buf
,
io
->
len
+
len
+
1
-
io
->
size
))
!=
NULL
)
{
io
->
buf
=
ptr
;
vsnprintf
(
io
->
buf
+
io
->
len
,
len
+
1
,
fmt
,
ap
);
io
->
len
+=
len
;
io
->
size
=
new_len
*
mult
;
}
else
{
len
=
0
;
}
DBG
((
"%d %d %d"
,
len
,
io
->
len
,
io
->
size
));
return
len
;
}
int
mg_printf
(
struct
mg_connection
*
c
,
const
char
*
fmt
,
...)
{
struct
connection
*
conn
=
(
struct
connection
*
)
c
;
va_list
ap
;
int
ret
;
va_start
(
ap
,
fmt
);
mutex_lock
(
&
conn
->
mutex
);
ret
=
vspool
(
&
conn
->
remote_iobuf
,
fmt
,
ap
);
mutex_unlock
(
&
conn
->
mutex
);
va_end
(
ap
);
send
(
conn
->
server
->
ctl
[
1
],
"."
,
1
,
0
);
// Wake up select call
return
ret
;
}
int
mg_write
(
struct
mg_connection
*
c
,
const
void
*
buf
,
int
len
)
{
struct
connection
*
conn
=
(
struct
connection
*
)
c
;
int
ret
;
mutex_lock
(
&
conn
->
mutex
);
ret
=
spool
(
&
conn
->
remote_iobuf
,
buf
,
len
);
mutex_unlock
(
&
conn
->
mutex
);
send
(
conn
->
server
->
ctl
[
1
],
"."
,
1
,
0
);
// Wake up select call
return
ret
;
}
...
...
@@ -1010,16 +970,15 @@ static void construct_etag(char *buf, size_t buf_len, const file_stat_t *st) {
static
void
open_file_endpoint
(
struct
connection
*
conn
,
const
char
*
path
,
file_stat_t
*
st
)
{
char
date
[
64
],
lm
[
64
],
etag
[
64
],
range
[
64
];
char
date
[
64
],
lm
[
64
],
etag
[
64
],
range
[
64
]
,
headers
[
500
]
;
const
char
*
msg
=
"OK"
,
*
hdr
;
time_t
curtime
=
time
(
NULL
);
int64_t
cl
,
r1
,
r2
;
struct
vec
mime_vec
;
int
n
;
int
n
,
status_code
=
200
;
conn
->
endpoint_type
=
EP_FILE
;
set_close_on_exec
(
conn
->
endpoint
.
fd
);
conn
->
status_code
=
200
;
get_mime_type
(
conn
->
server
,
path
,
&
mime_vec
);
cl
=
st
->
st_size
;
...
...
@@ -1030,7 +989,7 @@ static void open_file_endpoint(struct connection *conn, const char *path,
hdr
=
mg_get_header
(
&
conn
->
mg_conn
,
"Range"
);
if
(
hdr
!=
NULL
&&
(
n
=
parse_range_header
(
hdr
,
&
r1
,
&
r2
))
>
0
&&
r1
>=
0
&&
r2
>=
0
)
{
conn
->
status_code
=
206
;
status_code
=
206
;
cl
=
n
==
2
?
(
r2
>
cl
?
cl
:
r2
)
-
r1
+
1
:
cl
-
r1
;
snprintf
(
range
,
sizeof
(
range
),
"Content-Range: bytes "
"%"
INT64_FMT
"-%"
INT64_FMT
"/%"
INT64_FMT
"
\r\n
"
,
...
...
@@ -1045,7 +1004,7 @@ static void open_file_endpoint(struct connection *conn, const char *path,
gmt_time_string
(
lm
,
sizeof
(
lm
),
&
st
->
st_mtime
);
construct_etag
(
etag
,
sizeof
(
etag
),
st
);
mg_printf
(
&
conn
->
mg_conn
,
n
=
snprintf
(
headers
,
sizeof
(
headers
)
,
"HTTP/1.1 %d %s
\r\n
"
"Date: %s
\r\n
"
"Last-Modified: %s
\r\n
"
...
...
@@ -1055,8 +1014,9 @@ static void open_file_endpoint(struct connection *conn, const char *path,
"Connection: %s
\r\n
"
"Accept-Ranges: bytes
\r\n
"
"%s%s
\r\n
"
,
conn
->
status_code
,
msg
,
date
,
lm
,
etag
,
(
int
)
mime_vec
.
len
,
status_code
,
msg
,
date
,
lm
,
etag
,
(
int
)
mime_vec
.
len
,
mime_vec
.
ptr
,
cl
,
"keep-alive"
,
range
,
EXTRA_HTTP_HEADERS
);
spool
(
&
conn
->
remote_iobuf
,
headers
,
n
);
if
(
!
strcmp
(
conn
->
mg_conn
.
request_method
,
"HEAD"
))
{
conn
->
flags
|=
CONN_SPOOL_DONE
;
...
...
@@ -1135,7 +1095,7 @@ static struct uri_handler *find_uri_handler(struct mg_server *server,
// For given directory path, substitute it to valid index file.
// Return 0 if index file has been found, -1 if not found.
// If the file is found, it's stats is returned in stp.
static
int
substitute
_index_file
(
struct
connection
*
conn
,
char
*
path
,
static
int
find
_index_file
(
struct
connection
*
conn
,
char
*
path
,
size_t
path_len
,
file_stat_t
*
stp
)
{
const
char
*
list
=
conn
->
server
->
config_options
[
INDEX_FILES
];
file_stat_t
st
;
...
...
@@ -1179,33 +1139,40 @@ static int substitute_index_file(struct connection *conn, char *path,
}
static
void
send_http_error
(
struct
connection
*
conn
,
const
char
*
fmt
,
...)
{
char
buf
[
500
];
int
len
;
va_list
ap
;
va_start
(
ap
,
fmt
);
vspool
(
&
conn
->
remote_iobuf
,
fmt
,
ap
);
len
=
vsnprintf
(
buf
,
sizeof
(
buf
)
,
fmt
,
ap
);
va_end
(
ap
);
spool
(
&
conn
->
remote_iobuf
,
buf
,
len
);
conn
->
flags
|=
CONN_SPOOL_DONE
;
}
static
void
exec_lua_script
(
struct
connection
*
conn
,
const
char
*
path
)
{
send_http_error
(
conn
,
"%s"
,
"HTTP/1.1 501 Not Implemented
\r\n\r\n
"
);
static
void
call_uri_handler_if_data_is_buffered
(
struct
connection
*
conn
)
{
if
(
conn
->
local_iobuf
.
len
>=
conn
->
mg_conn
.
content_len
)
{
conn
->
endpoint
.
uh
->
handler
(
&
conn
->
mg_conn
);
close_local_endpoint
(
conn
);
}
}
static
void
open_local_endpoint
(
struct
connection
*
conn
)
{
char
path
[
MAX_PATH_SIZE
]
=
{
'\0'
};
file_stat_t
st
;
int
uri_len
,
exists
=
0
,
is_directory
=
0
;
struct
uri_handler
*
uh
;
int
exists
=
0
,
is_directory
=
0
;
const
char
*
cl_hdr
=
mg_get_header
(
&
conn
->
mg_conn
,
"Content-Length"
)
;
if
((
conn
->
mg_conn
.
query_string
=
strchr
(
conn
->
mg_conn
.
uri
,
'?'
))
!=
NULL
)
{
*
((
char
*
)
conn
->
mg_conn
.
query_string
++
)
=
'\0'
;
}
uri_len
=
(
int
)
strlen
(
conn
->
mg_conn
.
uri
);
mg_url_decode
(
conn
->
mg_conn
.
uri
,
uri_len
,
(
char
*
)
conn
->
mg_conn
.
uri
,
uri_len
+
1
,
0
);
remove_double_dots_and_double_slashes
((
char
*
)
conn
->
mg_conn
.
uri
);
conn
->
mg_conn
.
content_len
=
cl_hdr
==
NULL
?
0
:
to64
(
cl_hdr
);
if
((
uh
=
find_uri_handler
(
conn
->
server
,
conn
->
mg_conn
.
uri
))
!=
NULL
)
{
// Call URI handler if one is registered for this URI
conn
->
endpoint
.
uh
=
find_uri_handler
(
conn
->
server
,
conn
->
mg_conn
.
uri
);
if
(
conn
->
endpoint
.
uh
!=
NULL
)
{
conn
->
endpoint_type
=
EP_USER
;
conn
->
mg_conn
.
content
=
conn
->
local_iobuf
.
buf
;
call_uri_handler_if_data_is_buffered
(
conn
);
return
;
}
exists
=
convert_uri_to_file_name
(
conn
,
path
,
sizeof
(
path
),
&
st
);
...
...
@@ -1213,14 +1180,10 @@ static void open_local_endpoint(struct connection *conn) {
if
(
!
exists
)
{
send_http_error
(
conn
,
"%s"
,
"HTTP/1.1 404 Not Found
\r\n\r\n
"
);
}
else
if
(
is_directory
&&
conn
->
mg_conn
.
uri
[
uri_len
-
1
]
!=
'/'
)
{
send_http_error
(
conn
,
"HTTP/1.1 301 Moved Permanently
\r\n
"
"Location: %s/
\r\n\r\n
"
,
conn
->
mg_conn
.
uri
);
}
else
if
(
is_directory
&&
!
substitute_index_file
(
conn
,
path
,
sizeof
(
path
),
&
st
))
{
}
else
if
(
is_directory
&&
!
find_index_file
(
conn
,
path
,
sizeof
(
path
),
&
st
))
{
send_http_error
(
conn
,
"%s"
,
"HTTP/1.1 403 Listing Denied
\r\n\r\n
"
);
}
else
if
(
match_prefix
(
LUA_SCRIPT_PATTERN
,
6
,
path
)
>
0
)
{
exec_lua_script
(
conn
,
path
);
send_http_error
(
conn
,
"%s"
,
"HTTP/1.1 501 Not Implemented
\r\n\r\n
"
);
conn
->
flags
|=
CONN_SPOOL_DONE
;
}
else
if
(
is_not_modified
(
conn
,
&
st
))
{
send_http_error
(
conn
,
"%s"
,
"HTTP/1.1 304 Not Modified
\r\n\r\n
"
);
...
...
@@ -1231,40 +1194,54 @@ static void open_local_endpoint(struct connection *conn) {
}
}
static
int
io_space
(
const
struct
iobuf
*
io
)
{
return
io
->
size
-
io
->
len
;
static
void
send_continue_if_expected
(
struct
connection
*
conn
)
{
static
const
char
expect_response
[]
=
"HTTP/1.1 100 Continue
\r\n\r\n
"
;
const
char
*
expect_hdr
=
mg_get_header
(
&
conn
->
mg_conn
,
"Expect"
);
if
(
expect_hdr
!=
NULL
)
{
spool
(
&
conn
->
remote_iobuf
,
expect_response
,
sizeof
(
expect_response
)
-
1
);
}
}
static
void
process_request
(
struct
connection
*
conn
)
{
struct
iobuf
*
io
=
&
conn
->
local_iobuf
;
//DBG(("parse_http_message(%d [%.*s])", io->len, io->len, io->buf));
if
(
conn
->
request_len
==
0
)
{
conn
->
request_len
=
parse_http_message
(
io
->
buf
,
io
->
len
,
&
conn
->
mg_conn
);
if
(
conn
->
request_len
==
0
&&
(
conn
->
request_len
=
get_request_len
((
unsigned
char
*
)
io
->
buf
,
io
->
len
))
>
0
)
{
// If request is buffered in, remove it from the iobuf. This is because
// iobuf could be reallocated, and pointers in parsed request could
// become ivalid.
conn
->
request
=
(
char
*
)
malloc
(
conn
->
request_len
);
memcpy
(
conn
->
request
,
io
->
buf
,
conn
->
request_len
);
memmove
(
io
->
buf
,
io
->
buf
+
conn
->
request_len
,
io
->
len
-
conn
->
request_len
);
io
->
len
-=
conn
->
request_len
;
conn
->
request_len
=
parse_http_message
(
conn
->
request
,
conn
->
request_len
,
&
conn
->
mg_conn
);
DBG
((
"request_len = %d"
,
conn
->
request_len
));
}
DBG
((
"parse_http_message() -> %d"
,
conn
->
request_len
));
if
(
conn
->
request_len
<
0
||
(
conn
->
request_len
==
0
&&
io
_space
(
io
)
<=
0
))
{
(
conn
->
request_len
==
0
&&
io
->
len
>
MAX_REQUEST_SIZE
))
{
// Invalid request, or request is too big: close the connection
conn
->
flags
|=
CONN_CLOSE
;
}
else
if
(
conn
->
request_len
>
0
&&
conn
->
endpoint_type
==
EP_NONE
)
{
send_continue_if_expected
(
conn
);
open_local_endpoint
(
conn
);
}
else
if
(
conn
->
endpoint_type
==
EP_USER
)
{
call_uri_handler_if_data_is_buffered
(
conn
);
}
}
static
void
read_from_client
(
struct
connection
*
conn
)
{
struct
iobuf
*
io
=
&
conn
->
local_iobuf
;
int
n
=
recv
(
conn
->
client_sock
,
io
->
buf
+
io
->
len
,
io
->
size
-
io
->
len
,
0
);
//DBG(("Read: %d [%.*s]", n, n, io->buf + io->len));
assert
(
io
->
len
>=
0
);
assert
(
io
->
len
<=
io
->
size
);
char
buf
[
IOBUF_SIZE
];
int
n
=
recv
(
conn
->
client_sock
,
buf
,
sizeof
(
buf
),
0
);
if
(
is_error
(
n
))
{
conn
->
flags
|=
CONN_CLOSE
;
}
else
if
(
n
>
0
)
{
io
->
len
+=
n
;
spool
(
&
conn
->
local_iobuf
,
buf
,
n
)
;
process_request
(
conn
);
}
}
...
...
@@ -1279,22 +1256,22 @@ static int should_keep_alive(const struct connection *conn) {
}
static
void
close_local_endpoint
(
struct
connection
*
conn
)
{
struct
iobuf
*
io
=
&
conn
->
local_iobuf
;
int
keep_alive
=
should_keep_alive
(
conn
);
// Must be done before memmove
int
keep_alive
=
should_keep_alive
(
conn
);
// Must be done before free()
//DBG(("Closing for conn %p", conn));
// Close file descriptor
switch
(
conn
->
endpoint_type
)
{
case
EP_FILE
:
close
(
conn
->
endpoint
.
fd
);
break
;
case
EP_USER
:
break
;
case
EP_NONE
:
break
;
default:
assert
(
0
);
break
;
}
// Get rid of that request from the buffer. NOTE: order is important here
assert
(
conn
->
request_len
<=
io
->
len
);
memmove
(
io
->
buf
,
io
->
buf
+
conn
->
request_len
,
io
->
len
-
conn
->
request_len
);
io
->
len
-=
conn
->
request_len
;
conn
->
endpoint_type
=
EP_NONE
;
conn
->
request_len
=
0
;
free
(
conn
->
request
);
conn
->
request
=
NULL
;
if
(
keep_alive
)
{
process_request
(
conn
);
// Can call us recursively if pipelining is used
...
...
@@ -1304,16 +1281,13 @@ static void close_local_endpoint(struct connection *conn) {
}
static
void
transfer_file_data
(
struct
connection
*
conn
)
{
struct
iobuf
*
io
=
&
conn
->
remote_iobuf
;
int
n
,
rem_space
=
io_space
(
io
);
if
(
rem_space
<=
0
)
return
;
n
=
read
(
conn
->
endpoint
.
fd
,
io
->
buf
+
io
->
len
,
rem_space
);
char
buf
[
IOBUF_SIZE
];
int
n
=
read
(
conn
->
endpoint
.
fd
,
buf
,
sizeof
(
buf
));
if
(
is_error
(
n
))
{
close_local_endpoint
(
conn
);
}
else
if
(
n
>
0
)
{
io
->
len
+=
n
;
spool
(
&
conn
->
remote_iobuf
,
buf
,
n
)
;
}
}
...
...
@@ -1488,22 +1462,6 @@ struct mg_server *mg_create_server(void *server_data) {
server
->
server_data
=
server_data
;
server
->
listening_sock
=
INVALID_SOCKET
;
#if 0
while (opts != NULL && (name = *opts++) != NULL) {
if ((i = get_option_index(name)) == -1) {
snprintf(error_msg, sizeof(error_msg), "Invalid option: [%s]", name);
} else if ((value = *opts++) == NULL) {
snprintf(error_msg, sizeof(error_msg), "[%s] cannot be NULL", name);
} else {
if (server->config_options[i] != NULL) {
free(server->config_options[i]);
}
server->config_options[i] = mg_strdup(value);
DBG(("[%s] -> [%s]", name, value));
}
}
#endif
// Set default options values
for
(
i
=
0
;
static_config_options
[
i
*
2
]
!=
NULL
;
i
++
)
{
value
=
static_config_options
[
i
*
2
+
1
];
...
...
@@ -1518,7 +1476,9 @@ struct mg_server *mg_create_server(void *server_data) {
// End of library, start of the application code
static
void
iterate_callback
(
struct
mg_connection
*
c
,
void
*
param
)
{
if
(
c
->
connection_param
!=
NULL
)
{
mg_write
(
c
,
"%d"
,
*
(
int
*
)
param
);
}
}
static
void
*
timer_thread
(
void
*
param
)
{
...
...
@@ -1534,7 +1494,17 @@ static void *timer_thread(void *param) {
}
static
int
websocket_handler
(
struct
mg_connection
*
conn
)
{
mg_printf
(
conn
,
"%s"
,
"HTTP/1.0 200 OK
\r\n\r\n
:-)
\n
"
);
char
headers
[
500
],
content
[
500
];
int
headers_len
,
content_len
;
content_len
=
snprintf
(
content
,
sizeof
(
content
),
"%s %s, POST len %d
\n
"
,
conn
->
request_method
,
conn
->
uri
,
conn
->
content_len
);
headers_len
=
snprintf
(
headers
,
sizeof
(
headers
),
"HTTP/1.0 200 OK
\r\n
"
"Content-Length: %d
\r\n\r\n
"
,
content_len
);
mg_write
(
conn
,
headers
,
headers_len
);
mg_write
(
conn
,
content
,
content_len
);
return
1
;
}
...
...
@@ -1549,7 +1519,7 @@ int main(void) {
printf
(
"Started on port %s
\n
"
,
mg_get_option
(
server
,
"listening_port"
));
for
(;;)
{
mg_poll_server
(
server
,
1
000
);
mg_poll_server
(
server
,
3
000
);
}
mg_destroy_server
(
&
server
);
...
...
build/src/core.h
View file @
03e73782
...
...
@@ -33,15 +33,19 @@ struct mg_connection {
const
char
*
uri
;
// URL-decoded URI
const
char
*
http_version
;
// E.g. "1.0", "1.1"
const
char
*
query_string
;
// URL part after '?', not including '?', or NULL
long
remote_ip
;
// Client's IP address
int
remote_port
;
// Client's port
int
is_ssl
;
// 1 if SSL-ed, 0 if not
int
num_headers
;
// Number of HTTP headers
struct
mg_header
{
const
char
*
name
;
// HTTP header name
const
char
*
value
;
// HTTP header value
}
http_headers
[
64
];
// Maximum 64 headers
char
*
content
;
// POST (or websocket message) data, or NULL
int
content_len
;
// content length
void
*
server_param
;
// Parameter passed to mg_add_uri_handler()
void
*
connection_param
;
// Placeholder for connection-specific data
};
...
...
@@ -64,16 +68,16 @@ const char **mg_get_valid_option_names(void);
const
char
*
mg_get_option
(
const
struct
mg_server
*
server
,
const
char
*
name
);
// Websocket functions
void
mg_websocket_handshake
(
struct
mg_connection
*
);
int
mg_websocket_read
(
struct
mg_connection
*
,
int
*
bits
,
char
**
data
);
int
mg_websocket_write
(
struct
mg_connection
*
conn
,
int
opcode
,
const
char
*
data
,
size_t
data_len
);
//
void mg_websocket_handshake(struct mg_connection *);
//
int mg_websocket_read(struct mg_connection *, int *bits, char **data);
//
int mg_websocket_write(struct mg_connection* conn, int opcode,
//
const char *data, size_t data_len);
// Connection management functions
int
mg_write
(
struct
mg_connection
*
,
const
void
*
buf
,
int
len
);
int
mg_printf
(
struct
mg_connection
*
,
const
char
*
fmt
,
...);
#if 0
int mg_printf(struct mg_connection *, const char *fmt, ...);
void mg_send_file(struct mg_connection *, const char *path);
int mg_read(struct mg_connection *, void *buf, int len);
const char *mg_get_header(const struct mg_connection *, const char *name);
...
...
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