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authorAleksey Veresov <aleksey@veresov.pro>2020-02-06 19:43:57 +0300
committerAleksey Veresov <aleksey@veresov.pro>2020-02-06 19:43:57 +0300
commit83cd2267b309fa7411acaed356f88101196bb2ad (patch)
tree8ab5f2ebdfbbc5020f13329858d6364d82beabd9 /src/inner_urlencoded.c
parent37cd01d27efc7988548dbfde307e41be7d4f41a9 (diff)
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[magi] Broken to become better.
Diffstat (limited to 'src/inner_urlencoded.c')
-rw-r--r--src/inner_urlencoded.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/src/inner_urlencoded.c b/src/inner_urlencoded.c
deleted file mode 100644
index e3ea56a..0000000
--- a/src/inner_urlencoded.c
+++ /dev/null
@@ -1,144 +0,0 @@
-#include "inner_urlencoded.h"
-
-#include "inner_tools.h"
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Local Shortcuts
- */
-/* Call only if is_hex(c). */
-static int from_hex(char c)
-{
- if (isdigit(c)) {
- return c - '0';
- } else {
- return toupper(c) - 'A' + 10;
- }
-}
-
-static int is_hex(char c)
-{
- return isdigit(c) || strchr("ABCDEF", toupper(c));
-}
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * URL Decoding
- */
-static int deurl(char ** data)
-{
- char * val = *data;
- int ti;
- int ci;
- if (!val) {
- *data = malloc(1);
- **data = 0;
- return 1;
- }
- for (ti = 0, ci = 0; val[ci]; ++ti, ++ci) {
- if (val[ci] == '%') {
- if (is_hex(val[ci + 1]) && is_hex(val[ci + 2])) {
- /* Since chars can be signed, arithmetics are not safe. */
- val[ti] = from_hex(val[ci + 2]); /* 0000xxxx */
- val[ti] |= from_hex(val[ci + 1]) << 4; /* XXXXxxxx */
- ci += 2; /* Two extra characters are readed from code. */
- } else {
- return 0;
- }
- } else if (val[ci] == '+') {
- val[ti] = ' ';
- } else {
- val[ti] = val[ci];
- }
- }
- val[ti] = 0;
- return 1;
-}
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Urlencoded Automata
- */
-enum st { st_error = 0, st_name, st_data };
-
-struct automata {
- struct magi_param_list ** list;
- struct magi_param param;
- int size;
- int len;
-};
-
-
-static enum st parse_name(struct automata * a, char c)
-{
- if (c == '&' || c == ';') { /* Impossible character means error. */
- return st_error;
- }
- if (c == '=') { /* Separator ends name. */
- a->size = 1;
- a->len = 0;
- return st_data;
- }
-
- if (!magi_str_add(&a->param.name, &a->len, &a->size, c)) {
- return st_error;
- }
- return st_name;
-}
-
-static enum st end_data(struct automata * a)
-{
- if (deurl(&a->param.name) && deurl(&a->param.data)) {
- if (magi_param_list_add(a->list, &a->param)) {
- a->size = 1;
- a->len = 0;
- a->param.name = 0;
- a->param.data = 0;
- return st_name;
- }
- }
- return st_error;
-}
-
-static enum st parse_data(struct automata * a, char c)
-{
- if (c == '=') { /* Impossible character means error. */
- return st_error;
- }
- if (c == '&' || c == ';') { /* Separator ends data. */
- return end_data(a);
- }
-
- if (!magi_str_add(&a->param.data, &a->len, &a->size, c)) {
- return st_error;
- }
- return st_data;
-}
-
-void magi_urlencoded(struct magi_param_list ** list,
- struct magi_request * request,
- const char * encoded)
-{
- enum st state;
- struct automata a = { 0, { 0, 0 }, 1, 0 };
- a.list = list;
- *list = 0;
- if (!encoded || !*encoded) {
- return;
- }
- for (state = st_name; state && *encoded; ++encoded) {
- if (state == st_name) {
- state = parse_name(&a, *encoded);
- } else {
- state = parse_data(&a, *encoded);
- }
- }
- if (state == st_name || !state || !end_data(&a)) {
- free(a.param.name);
- free(a.param.data);
- request->error = magi_error_urlenc;
- }
-}