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Add MD5 checking to HTTP downloading

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In cases of where the file mismatches from what the server expects, it will fall back to direct downloading of the file.
This commit is contained in:
SteelT 2022-11-01 18:15:13 -04:00
parent f30f1bf163
commit 3a720a61cd
1 changed files with 20 additions and 9 deletions
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29
src/d_netfil.c
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@ -1239,6 +1239,7 @@ void CURLGetFile(void)
int msgs_left; /* how many messages are left */
const char *easy_handle_error;
long response_code = 0;
static char *filename;
if (curl_runninghandles)
{
@ -1263,6 +1264,8 @@ void CURLGetFile(void)
{
e = m->easy_handle;
easyres = m->data.result;
filename = Z_StrDup(curl_realname);
nameonly(filename);
if (easyres != CURLE_OK)
{
if (easyres == CURLE_HTTP_RETURNED_ERROR)
@ -1275,21 +1278,29 @@ void CURLGetFile(void)
curl_failedwebdownload = true;
fclose(curl_curfile->file);
remove(curl_curfile->filename);
curl_curfile->file = NULL;
//nameonly(curl_curfile->filename);
nameonly(curl_realname);
CONS_Printf(M_GetText("Failed to download %s (%s)\n"), curl_realname, easy_handle_error);
CONS_Printf(M_GetText("Failed to download %s (%s)\n"), filename, easy_handle_error);
}
else
{
nameonly(curl_realname);
CONS_Printf(M_GetText("Finished downloading %s\n"), curl_realname);
downloadcompletednum++;
downloadcompletedsize += curl_curfile->totalsize;
curl_curfile->status = FS_FOUND;
fclose(curl_curfile->file);
if (checkfilemd5(curl_curfile->filename, curl_curfile->md5sum) == FS_MD5SUMBAD)
{
CONS_Alert(CONS_ERROR, M_GetText("HTTP Download of %s finished but is corrupt or has been modified\n"), filename);
curl_curfile->status = FS_FALLBACK;
}
else
{
CONS_Printf(M_GetText("Finished HTTP download of %s\n"), filename);
downloadcompletednum++;
downloadcompletedsize += curl_curfile->totalsize;
curl_curfile->status = FS_FOUND;
}
}
Z_Free(filename);
curl_curfile->file = NULL;
curl_running = false;
curl_transfers--;
curl_multi_remove_handle(multi_handle, e);