mirror of
https://github.com/wiidev/usbloadergx.git
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f793af2d39
**Big Thanks to CorneliousJD for Hosting the DOLs)** *Reverted ardi's stuff which made codedumps on the Download (sorry ardi commit it again when its fixed)
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <ogcsys.h>
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#include <network.h>
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#include "http.h"
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static s32 connection;
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s32 network_request(const char * request)
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{
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char buf[1024];
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char *ptr = NULL;
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u32 cnt, size;
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s32 ret;
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/* Send request */
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ret = net_send(connection, request, strlen(request), 0);
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if (ret < 0)
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return ret;
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/* Clear buffer */
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memset(buf, 0, sizeof(buf));
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/* Read HTTP header */
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for (cnt = 0; !strstr(buf, "\r\n\r\n"); cnt++)
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if (net_recv(connection, buf + cnt, 1, 0) <= 0)
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return -1;
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/* HTTP request OK? */
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if (!strstr(buf, "HTTP/1.1 200 OK"))
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return -1;
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/* Retrieve content size */
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ptr = strstr(buf, "Content-Length:");
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if (!ptr)
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return -1;
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sscanf(ptr, "Content-Length: %u", &size);
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return size;
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}
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s32 network_read(void *buf, u32 len)
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{
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s32 read = 0, ret;
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/* Data to be read */
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while (read < len) {
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/* Read network data */
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ret = net_read(connection, buf + read, len - read);
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if (ret < 0)
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return ret;
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/* Read finished */
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if (!ret)
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break;
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/* Increment read variable */
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read += ret;
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}
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return read;
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}
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s32 downloadrev(const char * url) {
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//Check if the url starts with "http://", if not it is not considered a valid url
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if(strncmp(url, "http://", strlen("http://")) != 0)
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{
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//printf("URL '%s' doesn't start with 'http://'\n", url);
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return -1;
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}
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//Locate the path part of the url by searching for '/' past "http://"
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char *path = strchr(url + strlen("http://"), '/');
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//At the very least the url has to end with '/', ending with just a domain is invalid
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if(path == NULL)
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{
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//printf("URL '%s' has no PATH part\n", url);
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return -1;
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}
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//Extract the domain part out of the url
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int domainlength = path - url - strlen("http://");
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if(domainlength == 0)
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{
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//printf("No domain part in URL '%s'\n", url);
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return -1;
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}
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char domain[domainlength + 1];
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strncpy(domain, url + strlen("http://"), domainlength);
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domain[domainlength] = '\0';
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connection = GetConnection(domain);
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if(connection < 0) {
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return -1;
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}
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//Form a nice request header to send to the webserver
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char* headerformat = "GET %s HTTP/1.1\r\nHost: %s\r\nConnection: close\r\n\r\n";;
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char header[strlen(headerformat) + strlen(domain) + strlen(path)];
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sprintf(header, headerformat, path, domain);
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s32 filesize = network_request(header);
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return filesize;
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}
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void CloseConnection() {
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net_close(connection);
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}
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