mirror of
https://gitee.com/openharmony/third_party_nghttp2
synced 2024-11-26 17:40:25 +00:00
Stricter checks for pseudo-headers :method and :path
Check the allowed characters for ":method" (see RFC 7230, section 3.2.6) and ":path". For ":path", the space and tab characters are now forbidden, but other special characters are still allowed for compatibility reasons. Update genvchartbl.py so that it generates the same table as in the code. Fixes #1611
This commit is contained in:
Michael Kaufmann
parent
c2e29ad06f
commit
83c063346d
29
genmethodchartbl.py
Executable file
29
genmethodchartbl.py
Executable file
@ -0,0 +1,29 @@
|
||||
#!/usr/bin/env python3
|
||||
import sys
|
||||
|
||||
def name(i):
|
||||
if i < 0x21:
|
||||
return \
|
||||
['NUL ', 'SOH ', 'STX ', 'ETX ', 'EOT ', 'ENQ ', 'ACK ', 'BEL ',
|
||||
'BS ', 'HT ', 'LF ', 'VT ', 'FF ', 'CR ', 'SO ', 'SI ',
|
||||
'DLE ', 'DC1 ', 'DC2 ', 'DC3 ', 'DC4 ', 'NAK ', 'SYN ', 'ETB ',
|
||||
'CAN ', 'EM ', 'SUB ', 'ESC ', 'FS ', 'GS ', 'RS ', 'US ',
|
||||
'SPC '][i]
|
||||
elif i == 0x7f:
|
||||
return 'DEL '
|
||||
|
||||
for i in range(256):
|
||||
if chr(i) in ["!" , "#" , "$" , "%" , "&" , "'" , "*",
|
||||
"+" , "-" , "." , "^" , "_" , "`" , "|" , "~"] or\
|
||||
('0' <= chr(i) and chr(i) <= '9') or \
|
||||
('A' <= chr(i) and chr(i) <= 'Z') or \
|
||||
('a' <= chr(i) and chr(i) <= 'z'):
|
||||
sys.stdout.write('1 /* {} */, '.format(chr(i)))
|
||||
elif (0x21 <= i and i < 0x7f):
|
||||
sys.stdout.write('0 /* {} */, '.format(chr(i)))
|
||||
elif 0x80 <= i:
|
||||
sys.stdout.write('0 /* {} */, '.format(hex(i)))
|
||||
else:
|
||||
sys.stdout.write('0 /* {} */, '.format(name(i)))
|
||||
if (i + 1)%4 == 0:
|
||||
sys.stdout.write('\n')
|
||||
23
genpathchartbl.py
Executable file
23
genpathchartbl.py
Executable file
@ -0,0 +1,23 @@
|
||||
#!/usr/bin/env python3
|
||||
import sys
|
||||
|
||||
def name(i):
|
||||
if i < 0x21:
|
||||
return \
|
||||
['NUL ', 'SOH ', 'STX ', 'ETX ', 'EOT ', 'ENQ ', 'ACK ', 'BEL ',
|
||||
'BS ', 'HT ', 'LF ', 'VT ', 'FF ', 'CR ', 'SO ', 'SI ',
|
||||
'DLE ', 'DC1 ', 'DC2 ', 'DC3 ', 'DC4 ', 'NAK ', 'SYN ', 'ETB ',
|
||||
'CAN ', 'EM ', 'SUB ', 'ESC ', 'FS ', 'GS ', 'RS ', 'US ',
|
||||
'SPC '][i]
|
||||
elif i == 0x7f:
|
||||
return 'DEL '
|
||||
|
||||
for i in range(256):
|
||||
if (0x21 <= i and i < 0x7f):
|
||||
sys.stdout.write('1 /* {} */, '.format(chr(i)))
|
||||
elif 0x80 <= i:
|
||||
sys.stdout.write('1 /* {} */, '.format(hex(i)))
|
||||
else:
|
||||
sys.stdout.write('0 /* {} */, '.format(name(i)))
|
||||
if (i + 1)%4 == 0:
|
||||
sys.stdout.write('\n')
|
||||
@ -20,8 +20,6 @@ for i in range(256):
|
||||
sys.stdout.write('1 /* {} */, '.format(chr(i)))
|
||||
elif 0x80 <= i:
|
||||
sys.stdout.write('1 /* {} */, '.format(hex(i)))
|
||||
elif 0 == i:
|
||||
sys.stdout.write('1 /* NUL */, ')
|
||||
else:
|
||||
sys.stdout.write('0 /* {} */, '.format(name(i)))
|
||||
if (i + 1)%4 == 0:
|
||||
|
||||
@ -4839,7 +4839,30 @@ NGHTTP2_EXTERN int nghttp2_check_header_value(const uint8_t *value, size_t len);
|
||||
/**
|
||||
* @function
|
||||
*
|
||||
* Returns nonzero if the |value| which is supposed to the value of
|
||||
* Returns nonzero if the |value| which is supposed to be the value of the
|
||||
* :method header field is valid according to
|
||||
* https://datatracker.ietf.org/doc/html/rfc7231#section-4 and
|
||||
* https://datatracker.ietf.org/doc/html/rfc7230#section-3.2.6
|
||||
*/
|
||||
NGHTTP2_EXTERN int nghttp2_check_method(const uint8_t *value, size_t len);
|
||||
|
||||
/**
|
||||
* @function
|
||||
*
|
||||
* Returns nonzero if the |value| which is supposed to be the value of the
|
||||
* :path header field is valid according to
|
||||
* https://datatracker.ietf.org/doc/html/rfc7540#section-8.1.2.3
|
||||
*
|
||||
* |value| is valid if it merely consists of the allowed characters.
|
||||
* In particular, it does not check whether |value| follows the syntax
|
||||
* of path.
|
||||
*/
|
||||
NGHTTP2_EXTERN int nghttp2_check_path(const uint8_t *value, size_t len);
|
||||
|
||||
/**
|
||||
* @function
|
||||
*
|
||||
* Returns nonzero if the |value| which is supposed to be the value of the
|
||||
* :authority or host header field is valid according to
|
||||
* https://tools.ietf.org/html/rfc3986#section-3.2
|
||||
*
|
||||
|
||||
@ -507,7 +507,166 @@ int nghttp2_check_header_value(const uint8_t *value, size_t len) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Generated by genauthroitychartbl.py */
|
||||
/* Generated by genmethodchartbl.py */
|
||||
static char VALID_METHOD_CHARS[] = {
|
||||
0 /* NUL */, 0 /* SOH */, 0 /* STX */, 0 /* ETX */,
|
||||
0 /* EOT */, 0 /* ENQ */, 0 /* ACK */, 0 /* BEL */,
|
||||
0 /* BS */, 0 /* HT */, 0 /* LF */, 0 /* VT */,
|
||||
0 /* FF */, 0 /* CR */, 0 /* SO */, 0 /* SI */,
|
||||
0 /* DLE */, 0 /* DC1 */, 0 /* DC2 */, 0 /* DC3 */,
|
||||
0 /* DC4 */, 0 /* NAK */, 0 /* SYN */, 0 /* ETB */,
|
||||
0 /* CAN */, 0 /* EM */, 0 /* SUB */, 0 /* ESC */,
|
||||
0 /* FS */, 0 /* GS */, 0 /* RS */, 0 /* US */,
|
||||
0 /* SPC */, 1 /* ! */, 0 /* " */, 1 /* # */,
|
||||
1 /* $ */, 1 /* % */, 1 /* & */, 1 /* ' */,
|
||||
0 /* ( */, 0 /* ) */, 1 /* * */, 1 /* + */,
|
||||
0 /* , */, 1 /* - */, 1 /* . */, 0 /* / */,
|
||||
1 /* 0 */, 1 /* 1 */, 1 /* 2 */, 1 /* 3 */,
|
||||
1 /* 4 */, 1 /* 5 */, 1 /* 6 */, 1 /* 7 */,
|
||||
1 /* 8 */, 1 /* 9 */, 0 /* : */, 0 /* ; */,
|
||||
0 /* < */, 0 /* = */, 0 /* > */, 0 /* ? */,
|
||||
0 /* @ */, 1 /* A */, 1 /* B */, 1 /* C */,
|
||||
1 /* D */, 1 /* E */, 1 /* F */, 1 /* G */,
|
||||
1 /* H */, 1 /* I */, 1 /* J */, 1 /* K */,
|
||||
1 /* L */, 1 /* M */, 1 /* N */, 1 /* O */,
|
||||
1 /* P */, 1 /* Q */, 1 /* R */, 1 /* S */,
|
||||
1 /* T */, 1 /* U */, 1 /* V */, 1 /* W */,
|
||||
1 /* X */, 1 /* Y */, 1 /* Z */, 0 /* [ */,
|
||||
0 /* \ */, 0 /* ] */, 1 /* ^ */, 1 /* _ */,
|
||||
1 /* ` */, 1 /* a */, 1 /* b */, 1 /* c */,
|
||||
1 /* d */, 1 /* e */, 1 /* f */, 1 /* g */,
|
||||
1 /* h */, 1 /* i */, 1 /* j */, 1 /* k */,
|
||||
1 /* l */, 1 /* m */, 1 /* n */, 1 /* o */,
|
||||
1 /* p */, 1 /* q */, 1 /* r */, 1 /* s */,
|
||||
1 /* t */, 1 /* u */, 1 /* v */, 1 /* w */,
|
||||
1 /* x */, 1 /* y */, 1 /* z */, 0 /* { */,
|
||||
1 /* | */, 0 /* } */, 1 /* ~ */, 0 /* DEL */,
|
||||
0 /* 0x80 */, 0 /* 0x81 */, 0 /* 0x82 */, 0 /* 0x83 */,
|
||||
0 /* 0x84 */, 0 /* 0x85 */, 0 /* 0x86 */, 0 /* 0x87 */,
|
||||
0 /* 0x88 */, 0 /* 0x89 */, 0 /* 0x8a */, 0 /* 0x8b */,
|
||||
0 /* 0x8c */, 0 /* 0x8d */, 0 /* 0x8e */, 0 /* 0x8f */,
|
||||
0 /* 0x90 */, 0 /* 0x91 */, 0 /* 0x92 */, 0 /* 0x93 */,
|
||||
0 /* 0x94 */, 0 /* 0x95 */, 0 /* 0x96 */, 0 /* 0x97 */,
|
||||
0 /* 0x98 */, 0 /* 0x99 */, 0 /* 0x9a */, 0 /* 0x9b */,
|
||||
0 /* 0x9c */, 0 /* 0x9d */, 0 /* 0x9e */, 0 /* 0x9f */,
|
||||
0 /* 0xa0 */, 0 /* 0xa1 */, 0 /* 0xa2 */, 0 /* 0xa3 */,
|
||||
0 /* 0xa4 */, 0 /* 0xa5 */, 0 /* 0xa6 */, 0 /* 0xa7 */,
|
||||
0 /* 0xa8 */, 0 /* 0xa9 */, 0 /* 0xaa */, 0 /* 0xab */,
|
||||
0 /* 0xac */, 0 /* 0xad */, 0 /* 0xae */, 0 /* 0xaf */,
|
||||
0 /* 0xb0 */, 0 /* 0xb1 */, 0 /* 0xb2 */, 0 /* 0xb3 */,
|
||||
0 /* 0xb4 */, 0 /* 0xb5 */, 0 /* 0xb6 */, 0 /* 0xb7 */,
|
||||
0 /* 0xb8 */, 0 /* 0xb9 */, 0 /* 0xba */, 0 /* 0xbb */,
|
||||
0 /* 0xbc */, 0 /* 0xbd */, 0 /* 0xbe */, 0 /* 0xbf */,
|
||||
0 /* 0xc0 */, 0 /* 0xc1 */, 0 /* 0xc2 */, 0 /* 0xc3 */,
|
||||
0 /* 0xc4 */, 0 /* 0xc5 */, 0 /* 0xc6 */, 0 /* 0xc7 */,
|
||||
0 /* 0xc8 */, 0 /* 0xc9 */, 0 /* 0xca */, 0 /* 0xcb */,
|
||||
0 /* 0xcc */, 0 /* 0xcd */, 0 /* 0xce */, 0 /* 0xcf */,
|
||||
0 /* 0xd0 */, 0 /* 0xd1 */, 0 /* 0xd2 */, 0 /* 0xd3 */,
|
||||
0 /* 0xd4 */, 0 /* 0xd5 */, 0 /* 0xd6 */, 0 /* 0xd7 */,
|
||||
0 /* 0xd8 */, 0 /* 0xd9 */, 0 /* 0xda */, 0 /* 0xdb */,
|
||||
0 /* 0xdc */, 0 /* 0xdd */, 0 /* 0xde */, 0 /* 0xdf */,
|
||||
0 /* 0xe0 */, 0 /* 0xe1 */, 0 /* 0xe2 */, 0 /* 0xe3 */,
|
||||
0 /* 0xe4 */, 0 /* 0xe5 */, 0 /* 0xe6 */, 0 /* 0xe7 */,
|
||||
0 /* 0xe8 */, 0 /* 0xe9 */, 0 /* 0xea */, 0 /* 0xeb */,
|
||||
0 /* 0xec */, 0 /* 0xed */, 0 /* 0xee */, 0 /* 0xef */,
|
||||
0 /* 0xf0 */, 0 /* 0xf1 */, 0 /* 0xf2 */, 0 /* 0xf3 */,
|
||||
0 /* 0xf4 */, 0 /* 0xf5 */, 0 /* 0xf6 */, 0 /* 0xf7 */,
|
||||
0 /* 0xf8 */, 0 /* 0xf9 */, 0 /* 0xfa */, 0 /* 0xfb */,
|
||||
0 /* 0xfc */, 0 /* 0xfd */, 0 /* 0xfe */, 0 /* 0xff */
|
||||
};
|
||||
|
||||
int nghttp2_check_method(const uint8_t *value, size_t len) {
|
||||
const uint8_t *last;
|
||||
if (len == 0) {
|
||||
return 0;
|
||||
}
|
||||
for (last = value + len; value != last; ++value) {
|
||||
if (!VALID_METHOD_CHARS[*value]) {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Generated by genpathchartbl.py */
|
||||
static char VALID_PATH_CHARS[] = {
|
||||
0 /* NUL */, 0 /* SOH */, 0 /* STX */, 0 /* ETX */,
|
||||
0 /* EOT */, 0 /* ENQ */, 0 /* ACK */, 0 /* BEL */,
|
||||
0 /* BS */, 0 /* HT */, 0 /* LF */, 0 /* VT */,
|
||||
0 /* FF */, 0 /* CR */, 0 /* SO */, 0 /* SI */,
|
||||
0 /* DLE */, 0 /* DC1 */, 0 /* DC2 */, 0 /* DC3 */,
|
||||
0 /* DC4 */, 0 /* NAK */, 0 /* SYN */, 0 /* ETB */,
|
||||
0 /* CAN */, 0 /* EM */, 0 /* SUB */, 0 /* ESC */,
|
||||
0 /* FS */, 0 /* GS */, 0 /* RS */, 0 /* US */,
|
||||
0 /* SPC */, 1 /* ! */, 1 /* " */, 1 /* # */,
|
||||
1 /* $ */, 1 /* % */, 1 /* & */, 1 /* ' */,
|
||||
1 /* ( */, 1 /* ) */, 1 /* * */, 1 /* + */,
|
||||
1 /* , */, 1 /* - */, 1 /* . */, 1 /* / */,
|
||||
1 /* 0 */, 1 /* 1 */, 1 /* 2 */, 1 /* 3 */,
|
||||
1 /* 4 */, 1 /* 5 */, 1 /* 6 */, 1 /* 7 */,
|
||||
1 /* 8 */, 1 /* 9 */, 1 /* : */, 1 /* ; */,
|
||||
1 /* < */, 1 /* = */, 1 /* > */, 1 /* ? */,
|
||||
1 /* @ */, 1 /* A */, 1 /* B */, 1 /* C */,
|
||||
1 /* D */, 1 /* E */, 1 /* F */, 1 /* G */,
|
||||
1 /* H */, 1 /* I */, 1 /* J */, 1 /* K */,
|
||||
1 /* L */, 1 /* M */, 1 /* N */, 1 /* O */,
|
||||
1 /* P */, 1 /* Q */, 1 /* R */, 1 /* S */,
|
||||
1 /* T */, 1 /* U */, 1 /* V */, 1 /* W */,
|
||||
1 /* X */, 1 /* Y */, 1 /* Z */, 1 /* [ */,
|
||||
1 /* \ */, 1 /* ] */, 1 /* ^ */, 1 /* _ */,
|
||||
1 /* ` */, 1 /* a */, 1 /* b */, 1 /* c */,
|
||||
1 /* d */, 1 /* e */, 1 /* f */, 1 /* g */,
|
||||
1 /* h */, 1 /* i */, 1 /* j */, 1 /* k */,
|
||||
1 /* l */, 1 /* m */, 1 /* n */, 1 /* o */,
|
||||
1 /* p */, 1 /* q */, 1 /* r */, 1 /* s */,
|
||||
1 /* t */, 1 /* u */, 1 /* v */, 1 /* w */,
|
||||
1 /* x */, 1 /* y */, 1 /* z */, 1 /* { */,
|
||||
1 /* | */, 1 /* } */, 1 /* ~ */, 0 /* DEL */,
|
||||
1 /* 0x80 */, 1 /* 0x81 */, 1 /* 0x82 */, 1 /* 0x83 */,
|
||||
1 /* 0x84 */, 1 /* 0x85 */, 1 /* 0x86 */, 1 /* 0x87 */,
|
||||
1 /* 0x88 */, 1 /* 0x89 */, 1 /* 0x8a */, 1 /* 0x8b */,
|
||||
1 /* 0x8c */, 1 /* 0x8d */, 1 /* 0x8e */, 1 /* 0x8f */,
|
||||
1 /* 0x90 */, 1 /* 0x91 */, 1 /* 0x92 */, 1 /* 0x93 */,
|
||||
1 /* 0x94 */, 1 /* 0x95 */, 1 /* 0x96 */, 1 /* 0x97 */,
|
||||
1 /* 0x98 */, 1 /* 0x99 */, 1 /* 0x9a */, 1 /* 0x9b */,
|
||||
1 /* 0x9c */, 1 /* 0x9d */, 1 /* 0x9e */, 1 /* 0x9f */,
|
||||
1 /* 0xa0 */, 1 /* 0xa1 */, 1 /* 0xa2 */, 1 /* 0xa3 */,
|
||||
1 /* 0xa4 */, 1 /* 0xa5 */, 1 /* 0xa6 */, 1 /* 0xa7 */,
|
||||
1 /* 0xa8 */, 1 /* 0xa9 */, 1 /* 0xaa */, 1 /* 0xab */,
|
||||
1 /* 0xac */, 1 /* 0xad */, 1 /* 0xae */, 1 /* 0xaf */,
|
||||
1 /* 0xb0 */, 1 /* 0xb1 */, 1 /* 0xb2 */, 1 /* 0xb3 */,
|
||||
1 /* 0xb4 */, 1 /* 0xb5 */, 1 /* 0xb6 */, 1 /* 0xb7 */,
|
||||
1 /* 0xb8 */, 1 /* 0xb9 */, 1 /* 0xba */, 1 /* 0xbb */,
|
||||
1 /* 0xbc */, 1 /* 0xbd */, 1 /* 0xbe */, 1 /* 0xbf */,
|
||||
1 /* 0xc0 */, 1 /* 0xc1 */, 1 /* 0xc2 */, 1 /* 0xc3 */,
|
||||
1 /* 0xc4 */, 1 /* 0xc5 */, 1 /* 0xc6 */, 1 /* 0xc7 */,
|
||||
1 /* 0xc8 */, 1 /* 0xc9 */, 1 /* 0xca */, 1 /* 0xcb */,
|
||||
1 /* 0xcc */, 1 /* 0xcd */, 1 /* 0xce */, 1 /* 0xcf */,
|
||||
1 /* 0xd0 */, 1 /* 0xd1 */, 1 /* 0xd2 */, 1 /* 0xd3 */,
|
||||
1 /* 0xd4 */, 1 /* 0xd5 */, 1 /* 0xd6 */, 1 /* 0xd7 */,
|
||||
1 /* 0xd8 */, 1 /* 0xd9 */, 1 /* 0xda */, 1 /* 0xdb */,
|
||||
1 /* 0xdc */, 1 /* 0xdd */, 1 /* 0xde */, 1 /* 0xdf */,
|
||||
1 /* 0xe0 */, 1 /* 0xe1 */, 1 /* 0xe2 */, 1 /* 0xe3 */,
|
||||
1 /* 0xe4 */, 1 /* 0xe5 */, 1 /* 0xe6 */, 1 /* 0xe7 */,
|
||||
1 /* 0xe8 */, 1 /* 0xe9 */, 1 /* 0xea */, 1 /* 0xeb */,
|
||||
1 /* 0xec */, 1 /* 0xed */, 1 /* 0xee */, 1 /* 0xef */,
|
||||
1 /* 0xf0 */, 1 /* 0xf1 */, 1 /* 0xf2 */, 1 /* 0xf3 */,
|
||||
1 /* 0xf4 */, 1 /* 0xf5 */, 1 /* 0xf6 */, 1 /* 0xf7 */,
|
||||
1 /* 0xf8 */, 1 /* 0xf9 */, 1 /* 0xfa */, 1 /* 0xfb */,
|
||||
1 /* 0xfc */, 1 /* 0xfd */, 1 /* 0xfe */, 1 /* 0xff */
|
||||
};
|
||||
|
||||
int nghttp2_check_path(const uint8_t *value, size_t len) {
|
||||
const uint8_t *last;
|
||||
for (last = value + len; value != last; ++value) {
|
||||
if (!VALID_PATH_CHARS[*value]) {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Generated by genauthoritychartbl.py */
|
||||
static char VALID_AUTHORITY_CHARS[] = {
|
||||
0 /* NUL */, 0 /* SOH */, 0 /* STX */, 0 /* ETX */,
|
||||
0 /* EOT */, 0 /* ENQ */, 0 /* ACK */, 0 /* BEL */,
|
||||
|
||||
@ -360,7 +360,13 @@ int nghttp2_http_on_header(nghttp2_session *session, nghttp2_stream *stream,
|
||||
return NGHTTP2_ERR_IGN_HTTP_HEADER;
|
||||
}
|
||||
|
||||
if (nv->token == NGHTTP2_TOKEN__AUTHORITY ||
|
||||
if (nv->token == NGHTTP2_TOKEN__METHOD) {
|
||||
rv = nghttp2_check_method(nv->value->base, nv->value->len);
|
||||
}
|
||||
else if (nv->token == NGHTTP2_TOKEN__PATH) {
|
||||
rv = nghttp2_check_path(nv->value->base, nv->value->len);
|
||||
}
|
||||
else if (nv->token == NGHTTP2_TOKEN__AUTHORITY ||
|
||||
nv->token == NGHTTP2_TOKEN_HOST) {
|
||||
rv = nghttp2_check_authority(nv->value->base, nv->value->len);
|
||||
} else if (nv->token == NGHTTP2_TOKEN__SCHEME) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user