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Escape some characters in URL

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Jerry 2017-04-17 11:48:38 +08:00 committed by GitHub
parent 847db7e035
commit 1203fda832
1 changed files with 37 additions and 1 deletions
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38
source/core/util.c
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@ -53,6 +53,40 @@ static int util_get_lines(PrintConsole* console, const char* str) {
return lines;
}
static char util_dec2hex(short int c)
{
if (0 <= c && c <= 9) return c + '0';
else if (10 <= c && c <= 15) return c + 'A' - 10;
else return -1;
}
void util_urlencode(char url[])
{
int i = 0;
int res_len = 0;
int len = strlen(url);
char res[1024];
for (i = 0; i < len; ++i) {
char c = url[i];
if (
('0' <= c && c <= '9') || ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') ||
c == ':' || c == '/' || c == '.' || c == '%' || c == '+' || c == '?' || c == '=' || c == '&' || c == '#'
) res[res_len++] = c;
else {
int j = (short int)c;
if (j < 0) j += 256;
int i1, i0;
i1 = j / 16;
i0 = j - i1 * 16;
res[res_len++] = '%';
res[res_len++] = util_dec2hex(i1);
res[res_len++] = util_dec2hex(i0);
}
}
res[res_len] = '\0';
strcpy(url, res);
}
void util_panic(const char* s, ...) {
va_list list;
va_start(list, s);
@ -687,6 +721,8 @@ Result util_http_open_ranged(httpcContext* context, u32* responseCode, const cha
char currUrl[1024];
strncpy(currUrl, url, sizeof(currUrl));
util_urlencode(currUrl);
char range[64];
if(rangeEnd > rangeStart) {
snprintf(range, sizeof(range), "%lu-%lu", rangeStart, rangeEnd);
@ -790,4 +826,4 @@ Result util_http_close(httpcContext* context) {
}
return httpcCloseContext(context);
}
}