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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* ######################################################################
RSH method - Transfer files via rsh compatible program
Written by Ben Collins <bcollins@debian.org>, Copyright (c) 2000
Licensed under the GNU General Public License v2 [no exception clauses]
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <config.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/strutl.h>
#include "nshttp.h"
#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <unistd.h>
#include <apti18n.h>
unsigned long TimeOut = 30;
Configuration::Item const *HttpOptions = 0;
time_t HttpMethod::FailTime = 0;
// HttpMethod::HttpMethod - Constructor /*{{{*/
HttpMethod::HttpMethod(std::string &&pProg) : aptMethod(std::move(pProg),"1.0",SendConfig)
{
signal(SIGTERM,SigTerm);
signal(SIGINT,SigTerm);
}
/*}}}*/
// HttpMethod::Configuration - Handle a configuration message /*{{{*/
// ---------------------------------------------------------------------
bool HttpMethod::Configuration(std::string Message)
{
// enabling privilege dropping for this method requires configuration…
// … which is otherwise lifted straight from root, so use it by default.
_config->Set(std::string("Binary::") + Binary + "::APT::Sandbox::User", "");
if (aptMethod::Configuration(Message) == false)
return false;
std::string const timeconf = std::string("Acquire::") + Binary + "::Timeout";
TimeOut = _config->FindI(timeconf, TimeOut);
std::string const optsconf = std::string("Acquire::") + Binary + "::Options";
HttpOptions = _config->Tree(optsconf.c_str());
return true;
}
/*}}}*/
// HttpMethod::SigTerm - Clean up and timestamp the files on exit /*{{{*/
// ---------------------------------------------------------------------
/* */
void HttpMethod::SigTerm(int)
{
_exit(100);
}
/*}}}*/
// HttpMethod::Fetch - Fetch a URI /*{{{*/
// ---------------------------------------------------------------------
/* */
bool HttpMethod::Fetch(FetchItem *Itm)
{
URI Get = Itm->Uri;
std::string cppGet = Get;
NSURL *URL = [NSURL URLWithString:[NSString stringWithUTF8String:cppGet.c_str()]];
__block FetchResult Res;
Res.Filename = Itm->DestFile;
Res.IMSHit = false;
__block BOOL success = NO;
dispatch_semaphore_t sem = dispatch_semaphore_create(0);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:TimeOut];
[request setHTTPMethod:@"HEAD"];
[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *, NSURLResponse *response, NSError *error){
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if (httpResponse.statusCode >= 200){
if (httpResponse.expectedContentLength != NSURLResponseUnknownLength)
Res.Size = httpResponse.expectedContentLength;
NSString *dateModified = httpResponse.allHeaderFields[@"Date"];
if (dateModified){
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en"]];
[formatter setDateFormat:@"EEEE, dd LLL yyyy HH:mm:ss zzz"];
NSDate *date = [formatter dateFromString:dateModified];
this->FailTime = [date timeIntervalSince1970];
[formatter release];
}
success = YES;
} else {
success = NO;
}
dispatch_semaphore_signal(sem);
}] resume];
Status(_("Connecting to %s"), Get.Host.c_str());
dispatch_semaphore_wait(sem, dispatch_time(DISPATCH_TIME_NOW, TimeOut * NSEC_PER_SEC));
// Get the files information
if (!success)
{
return false;
}
// See if it is an IMS hit
if (Itm->LastModified == FailTime) {
Res.Size = 0;
Res.IMSHit = true;
URIDone(Res);
return true;
}
// See if the file exists
struct stat Buf;
if (stat(Itm->DestFile.c_str(),&Buf) == 0) {
if (Res.Size == (unsigned long long)Buf.st_size && FailTime == Buf.st_mtime) {
Res.Size = Buf.st_size;
Res.LastModified = Buf.st_mtime;
Res.ResumePoint = Buf.st_size;
URIDone(Res);
return true;
}
// Resume?
if (FailTime == Buf.st_mtime && Res.Size > (unsigned long long)Buf.st_size)
Res.ResumePoint = Buf.st_size;
}
// Open the file
Hashes Hash(Itm->ExpectedHashes);
{
[request setHTTPMethod:@"GET"];
success = NO;
NSURLSessionDownloadTask *task = [[NSURLSession sharedSession] downloadTaskWithRequest:request completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error){
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if (httpResponse.statusCode == 200 && !error){
NSString *destFile = [NSString stringWithUTF8String:Itm->DestFile.c_str()];
[[NSFileManager defaultManager] removeItemAtPath:destFile error:nil];
success = [[NSFileManager defaultManager] moveItemAtPath:location.path toPath:destFile error:&error];
if (error){
success = NO;
}
}
dispatch_semaphore_signal(sem);
}];
[task resume];
dispatch_semaphore_wait(sem, dispatch_time(DISPATCH_TIME_NOW, TimeOut * NSEC_PER_SEC));
if (!success){
Fail(true);
return true;
}
FileFd Fd(Itm->DestFile,FileFd::WriteExists);
Hash.AddFD(Fd,Hashes::UntilEOF);
URIStart(Res);
Res.Size = Fd.Size();
struct timeval times[2];
times[0].tv_sec = FailTime;
times[1].tv_sec = FailTime;
times[0].tv_usec = times[1].tv_usec = 0;
utimes(Fd.Name().c_str(), times);
}
Res.LastModified = FailTime;
Res.TakeHashes(Hash);
URIDone(Res);
return true;
}
/*}}}*/
int main(int, const char *argv[])
{
return HttpMethod(flNotDir(argv[0])).Run();
}
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