Methods for parsing POST data. More...
#include "internal.h"
Go to the source code of this file.
Defines | |
#define | XBUF_SIZE 512 |
Enumerations | |
enum | PP_State { PP_Error, PP_Done, PP_Init, PP_NextBoundary, PP_ProcessValue, PP_ExpectNewLine, PP_ProcessEntryHeaders, PP_PerformCheckMultipart, PP_ProcessValueToBoundary, PP_PerformCleanup, PP_Nested_Init, PP_Nested_PerformMarking, PP_Nested_ProcessEntryHeaders, PP_Nested_ProcessValueToBoundary, PP_Nested_PerformCleanup } |
enum | RN_State { RN_Inactive = 0, RN_OptN = 1, RN_Full = 2, RN_Dash = 3, RN_Dash2 = 4 } |
enum | NE_State { NE_none = 0, NE_content_name = 1, NE_content_type = 2, NE_content_filename = 4, NE_content_transfer_encoding = 8 } |
Functions | |
struct MHD_PostProcessor * | MHD_create_post_processor (struct MHD_Connection *connection, size_t buffer_size, MHD_PostDataIterator iter, void *iter_cls) |
static int | post_process_urlencoded (struct MHD_PostProcessor *pp, const char *post_data, size_t post_data_len) |
static int | try_match_header (const char *prefix, char *line, char **suffix) |
static int | find_boundary (struct MHD_PostProcessor *pp, const char *boundary, size_t blen, size_t *ioffptr, enum PP_State next_state, enum PP_State next_dash_state) |
static void | try_get_value (const char *buf, const char *key, char **destination) |
static int | process_multipart_headers (struct MHD_PostProcessor *pp, size_t *ioffptr, enum PP_State next_state) |
static int | process_value_to_boundary (struct MHD_PostProcessor *pp, size_t *ioffptr, const char *boundary, size_t blen, enum PP_State next_state, enum PP_State next_dash_state) |
static void | free_unmarked (struct MHD_PostProcessor *pp) |
static int | post_process_multipart (struct MHD_PostProcessor *pp, const char *post_data, size_t post_data_len) |
int | MHD_post_process (struct MHD_PostProcessor *pp, const char *post_data, size_t post_data_len) |
int | MHD_destroy_post_processor (struct MHD_PostProcessor *pp) |
Methods for parsing POST data.
Definition in file postprocessor.c.
#define XBUF_SIZE 512 |
Size of on-stack buffer that we use for un-escaping of the value. We use a pretty small value to be nice to the stack on embedded systems.
Definition at line 33 of file postprocessor.c.
Referenced by post_process_urlencoded().
enum NE_State |
Bits for the globally known fields that should not be deleted when we exit the nested state.
NE_none | |
NE_content_name | |
NE_content_type | |
NE_content_filename | |
NE_content_transfer_encoding |
Definition at line 103 of file postprocessor.c.
enum PP_State |
States in the PP parser's state machine.
Definition at line 38 of file postprocessor.c.
enum RN_State |
Definition at line 66 of file postprocessor.c.
static int find_boundary | ( | struct MHD_PostProcessor * | pp, | |
const char * | boundary, | |||
size_t | blen, | |||
size_t * | ioffptr, | |||
enum PP_State | next_state, | |||
enum PP_State | next_dash_state | |||
) | [static] |
pp | post processor context | |
boundary | boundary to look for | |
blen | number of bytes in boundary | |
ioffptr | set to the end of the boundary if found, otherwise incremented by one (FIXME: quirky API!) | |
next_state | state to which we should advance the post processor if the boundary is found | |
next_dash_state | dash_state to which we should advance the post processor if the boundary is found |
Definition at line 529 of file postprocessor.c.
References MHD_NO, MHD_YES, NULL, PP_Error, PP_Init, and RN_Dash.
Referenced by post_process_multipart().
static void free_unmarked | ( | struct MHD_PostProcessor * | pp | ) | [static] |
pp | post processor context |
Definition at line 791 of file postprocessor.c.
References NE_content_filename, NE_content_name, NE_content_transfer_encoding, NE_content_type, and NULL.
Referenced by MHD_destroy_post_processor(), and post_process_multipart().
static int post_process_multipart | ( | struct MHD_PostProcessor * | pp, | |
const char * | post_data, | |||
size_t | post_data_len | |||
) | [static] |
Decode multipart POST data.
pp | post processor context | |
post_data | data to decode | |
post_data_len | number of bytes in post_data |
Per RFC2046 5.1.1 NOTE TO IMPLEMENTORS, consume anything prior to the first multipart boundary:
> There appears to be room for additional information prior > to the first boundary delimiter line and following the > final boundary delimiter line. These areas should > generally be left blank, and implementations must ignore > anything that appears before the first boundary delimiter > line or after the last one.
Definition at line 827 of file postprocessor.c.
References find_boundary(), free_unmarked(), MHD_NO, mhd_panic, mhd_panic_cls, MHD_YES, NE_content_filename, NE_content_name, NE_content_transfer_encoding, NE_content_type, NE_none, NULL, PP_Done, PP_Error, PP_Init, PP_Nested_Init, PP_Nested_PerformCleanup, PP_Nested_PerformMarking, PP_Nested_ProcessEntryHeaders, PP_Nested_ProcessValueToBoundary, PP_NextBoundary, PP_PerformCheckMultipart, PP_PerformCleanup, PP_ProcessEntryHeaders, PP_ProcessValueToBoundary, process_multipart_headers(), process_value_to_boundary(), RN_Dash, RN_Dash2, RN_Full, RN_Inactive, and RN_OptN.
Referenced by MHD_post_process().
static int post_process_urlencoded | ( | struct MHD_PostProcessor * | pp, | |
const char * | post_data, | |||
size_t | post_data_len | |||
) | [static] |
Process url-encoded POST data.
pp | post processor context | |
post_data | upload data | |
post_data_len | number of bytes in post_data |
Definition at line 343 of file postprocessor.c.
References MHD_http_unescape(), MHD_NO, mhd_panic, mhd_panic_cls, MHD_POSTDATA_KIND, MHD_YES, NULL, PP_Done, PP_Error, PP_ExpectNewLine, PP_Init, PP_ProcessValue, and XBUF_SIZE.
Referenced by MHD_destroy_post_processor(), and MHD_post_process().
static int process_multipart_headers | ( | struct MHD_PostProcessor * | pp, | |
size_t * | ioffptr, | |||
enum PP_State | next_state | |||
) | [static] |
Go over the headers of the part and update the fields in "pp" according to what we find. If we are at the end of the headers (as indicated by an empty line), transition into next_state.
pp | post processor context | |
ioffptr | set to how many bytes have been processed | |
next_state | state to which the post processor should be advanced if we find the end of the headers |
Definition at line 636 of file postprocessor.c.
References MHD_NO, MHD_YES, PP_Error, RN_Full, RN_OptN, try_get_value(), and try_match_header().
Referenced by post_process_multipart().
static int process_value_to_boundary | ( | struct MHD_PostProcessor * | pp, | |
size_t * | ioffptr, | |||
const char * | boundary, | |||
size_t | blen, | |||
enum PP_State | next_state, | |||
enum PP_State | next_dash_state | |||
) | [static] |
We have the value until we hit the given boundary; process accordingly.
pp | post processor context | |
ioffptr | incremented based on the number of bytes processed | |
boundary | the boundary to look for | |
blen | strlen(boundary) | |
next_state | what state to go into after the boundary was found | |
next_dash_state | state to go into if the next boundary ends with "--" |
Definition at line 700 of file postprocessor.c.
References MHD_NO, MHD_POSTDATA_KIND, MHD_YES, NULL, PP_Error, and RN_Dash.
Referenced by post_process_multipart().
static void try_get_value | ( | const char * | buf, | |
const char * | key, | |||
char ** | destination | |||
) | [static] |
In buf, there maybe an expression '$key="$value"'. If that is the case, copy a copy of $value to destination.
If destination is already non-NULL, do nothing.
Definition at line 583 of file postprocessor.c.
References NULL.
Referenced by process_multipart_headers().
static int try_match_header | ( | const char * | prefix, | |
char * | line, | |||
char ** | suffix | |||
) | [static] |
If the given line matches the prefix, strdup the rest of the line into the suffix ptr.
prefix | prefix to match | |
line | line to match prefix in | |
suffix | set to a copy of the rest of the line, starting at the end of the match |
Definition at line 498 of file postprocessor.c.
References MHD_NO, MHD_YES, and NULL.
Referenced by process_multipart_headers().