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Add support for HTTP relative redirects.

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This commit is contained in:
Steveice10 2018-08-27 12:27:30 -07:00
parent 6a4a446df0
commit e09bb54fab
1 changed files with 34 additions and 2 deletions
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36
source/core/http.c
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@ -26,6 +26,35 @@ struct http_context_s {
u32 bufferSize;
};
void http_resolve_redirect(char* oldUrl, const char* redirectTo, size_t size) {
if(size > 0) {
if(redirectTo[0] == '/') {
char* baseEnd = oldUrl;
// Find the third slash to find the end of the URL's base; e.g. https://www.example.com/
u32 slashCount = 0;
while(*baseEnd != '\0' && (baseEnd = strchr(baseEnd + 1, '/')) != NULL) {
slashCount++;
if(slashCount == 3) {
break;
}
}
// If there are less than 3 slashes, assume the base URL ends at the end of the string; e.g. https://www.example.com
if(slashCount != 3) {
baseEnd = oldUrl + strlen(oldUrl);
}
size_t baseLen = baseEnd - oldUrl;
if(baseLen < size) {
string_copy(baseEnd, redirectTo, size - baseLen);
}
} else {
string_copy(oldUrl, redirectTo, size);
}
}
}
Result http_open(http_context* context, const char* url, bool userAgent) {
return http_open_ranged(context, url, userAgent, 0, 0);
}
@ -64,9 +93,12 @@ Result http_open_ranged(http_context* context, const char* url, bool userAgent,
if(response == 301 || response == 302 || response == 303) {
redirectCount++;
memset(currUrl, '\0', sizeof(currUrl));
if(R_SUCCEEDED(res = httpcGetResponseHeader(&ctx->httpc, "Location", currUrl, sizeof(currUrl)))) {
char redirectTo[1024];
memset(redirectTo, '\0', sizeof(redirectTo));
if(R_SUCCEEDED(res = httpcGetResponseHeader(&ctx->httpc, "Location", redirectTo, sizeof(redirectTo)))) {
httpcCloseContext(&ctx->httpc);
http_resolve_redirect(currUrl, redirectTo, sizeof(currUrl));
}
} else {
resolved = true;