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MHD_parse_arguments_(): refactored, allow cls for the callback

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This commit is contained in:
Evgeny Grin (Karlson2k)
2022-06-22 20:58:43 +03:00
parent 5ba4b7709f
commit 6ccaa5da57
4 changed files with 31 additions and 26 deletions
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src/microhttpd/connection.c
+4 -5
View File
@@ -2725,8 +2725,7 @@ get_next_header_line (struct MHD_Connection *connection,
* Add an entry to the HTTP headers of a connection. If this fails,
* transmit an error response (request too big).
*
* @param connection the connection for which a
* value should be set
* @param cls the context (connection)
* @param kind kind of the value
* @param key key for the value
* @param key_size number of bytes in @a key
@@ -2735,13 +2734,14 @@ get_next_header_line (struct MHD_Connection *connection,
* @return #MHD_NO on failure (out of memory), #MHD_YES for success
*/
static enum MHD_Result
connection_add_header (struct MHD_Connection *connection,
connection_add_header (void *cls,
const char *key,
size_t key_size,
const char *value,
size_t value_size,
enum MHD_ValueKind kind)
{
struct MHD_Connection *connection = (struct MHD_Connection *) cls;
if (MHD_NO ==
MHD_set_connection_value_n (connection,
kind,
@@ -3266,7 +3266,6 @@ parse_initial_message_line (struct MHD_Connection *connection,
char *uri;
char *http_version;
char *args;
unsigned int unused_num_headers;
if (NULL == (uri = memchr (line,
' ',
@@ -3362,7 +3361,7 @@ parse_initial_message_line (struct MHD_Connection *connection,
MHD_GET_ARGUMENT_KIND,
args,
&connection_add_header,
&unused_num_headers);
connection);
}
/* unescape URI *after* searching for arguments and log callback */
src/microhttpd/digestauth.c
+17 -6
View File
@@ -1185,11 +1185,17 @@ calculate_add_nonce_with_retry (struct MHD_Connection *const connection,
}
struct test_header_param
{
struct MHD_Connection *connection;
unsigned int num_headers;
};
/**
* Test if the given key-value pair is in the headers for the
* given connection.
*
* @param connection the connection
* @param cls the test context
* @param key the key
* @param key_size number of bytes in @a key
* @param value the value, can be NULL
@@ -1199,15 +1205,18 @@ calculate_add_nonce_with_retry (struct MHD_Connection *const connection,
* #MHD_NO if not
*/
static enum MHD_Result
test_header (struct MHD_Connection *connection,
test_header (void *cls,
const char *key,
size_t key_size,
const char *value,
size_t value_size,
enum MHD_ValueKind kind)
{
struct test_header_param *const param = (struct test_header_param *) cls;
struct MHD_Connection *connection = param->connection;
struct MHD_HTTP_Req_Header *pos;
param->num_headers++;
for (pos = connection->headers_received; NULL != pos; pos = pos->next)
{
if (kind != pos->kind)
@@ -1251,8 +1260,8 @@ check_argument_match (struct MHD_Connection *connection,
{
struct MHD_HTTP_Req_Header *pos;
char *argb;
unsigned int num_headers;
enum MHD_Result ret;
struct test_header_param param;
argb = strdup (args);
if (NULL == argb)
@@ -1263,11 +1272,13 @@ check_argument_match (struct MHD_Connection *connection,
#endif /* HAVE_MESSAGES */
return MHD_NO;
}
param.connection = connection;
param.num_headers = 0;
ret = MHD_parse_arguments_ (connection,
MHD_GET_ARGUMENT_KIND,
argb,
&test_header,
&num_headers);
&param);
free (argb);
if (MHD_NO == ret)
{
@@ -1278,9 +1289,9 @@ check_argument_match (struct MHD_Connection *connection,
{
if (MHD_GET_ARGUMENT_KIND != pos->kind)
continue;
num_headers--;
param.num_headers--;
}
if (0 != num_headers)
if (0 != param.num_headers)
{
/* argument count mismatch */
return MHD_NO;
src/microhttpd/internal.c
+6 -11
View File
@@ -186,7 +186,7 @@ MHD_http_unescape (char *val)
* @param[in,out] args argument URI string (after "?" in URI),
* clobbered in the process!
* @param cb function to call on each key-value pair found
* @param[out] num_headers set to the number of headers found
* @param cls the iterator context
* @return #MHD_NO on failure (@a cb returned #MHD_NO),
* #MHD_YES for success (parsing succeeded, @a cb always
* returned #MHD_YES)
@@ -196,13 +196,12 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
enum MHD_ValueKind kind,
char *args,
MHD_ArgumentIterator_ cb,
unsigned int *num_headers)
void *cls)
{
struct MHD_Daemon *daemon = connection->daemon;
char *equals;
char *amper;
*num_headers = 0;
while ( (NULL != args) &&
('\0' != args[0]) )
{
@@ -220,14 +219,13 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
key_len = daemon->unescape_callback (daemon->unescape_callback_cls,
connection,
args);
if (MHD_NO == cb (connection,
if (MHD_NO == cb (cls,
args,
key_len,
NULL,
0,
kind))
return MHD_NO;
(*num_headers)++;
break;
}
/* got 'foo=bar' */
@@ -241,14 +239,13 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
value_len = daemon->unescape_callback (daemon->unescape_callback_cls,
connection,
equals);
if (MHD_NO == cb (connection,
if (MHD_NO == cb (cls,
args,
key_len,
equals,
value_len,
kind))
return MHD_NO;
(*num_headers)++;
break;
}
/* amper is non-NULL here */
@@ -262,7 +259,7 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
key_len = daemon->unescape_callback (daemon->unescape_callback_cls,
connection,
args);
if (MHD_NO == cb (connection,
if (MHD_NO == cb (cls,
args,
key_len,
NULL,
@@ -270,7 +267,6 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
kind))
return MHD_NO;
/* continue with 'bar' */
(*num_headers)++;
args = amper;
continue;
}
@@ -286,14 +282,13 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
value_len = daemon->unescape_callback (daemon->unescape_callback_cls,
connection,
equals);
if (MHD_NO == cb (connection,
if (MHD_NO == cb (cls,
args,
key_len,
equals,
value_len,
kind))
return MHD_NO;
(*num_headers)++;
args = amper;
}
return MHD_YES;
src/microhttpd/internal.h
+4 -4
View File
@@ -2368,7 +2368,7 @@ MHD_unescape_plus (char *arg);
* Callback invoked when iterating over @a key / @a value
* argument pairs during parsing.
*
* @param connection context of the iteration
* @param cls context of the iteration
* @param key 0-terminated key string, never NULL
* @param key_size number of bytes in key
* @param value 0-terminated binary data, may include binary zeros, may be NULL
@@ -2378,7 +2378,7 @@ MHD_unescape_plus (char *arg);
* #MHD_NO to signal failure (and abort iteration)
*/
typedef enum MHD_Result
(*MHD_ArgumentIterator_)(struct MHD_Connection *connection,
(*MHD_ArgumentIterator_)(void *cls,
const char *key,
size_t key_size,
const char *value,
@@ -2395,7 +2395,7 @@ typedef enum MHD_Result
* @param[in,out] args argument URI string (after "?" in URI),
* clobbered in the process!
* @param cb function to call on each key-value pair found
* @param[out] num_headers set to the number of headers found
* @param cls the iterator context
* @return #MHD_NO on failure (@a cb returned #MHD_NO),
* #MHD_YES for success (parsing succeeded, @a cb always
* returned #MHD_YES)
@@ -2405,7 +2405,7 @@ MHD_parse_arguments_ (struct MHD_Connection *connection,
enum MHD_ValueKind kind,
char *args,
MHD_ArgumentIterator_ cb,
unsigned int *num_headers);
void *cls);
/**