/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFApplication.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFDictionary.h"
#import "OFFile.h"
#import "OFFileManager.h"
#import "OFHTTPClient.h"
#import "OFHTTPRequest.h"
#import "OFHTTPResponse.h"
#import "OFLocale.h"
#import "OFOptionsParser.h"
#ifdef OF_HAVE_PLUGINS
# import "OFPlugin.h"
#endif
#import "OFSandbox.h"
#import "OFStdIOStream.h"
#import "OFSystemInfo.h"
#import "OFTCPSocket.h"
#import "OFTLSSocket.h"
#import "OFURL.h"
#import "OFConnectionFailedException.h"
#import "OFHTTPRequestFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFInvalidServerReplyException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFResolveHostFailedException.h"
#import "OFRetrieveItemAttributesFailedException.h"
#import "OFUnsupportedProtocolException.h"
#import "OFWriteFailedException.h"
#import "ProgressBar.h"
#define GIBIBYTE (1024 * 1024 * 1024)
#define MEBIBYTE (1024 * 1024)
#define KIBIBYTE (1024)
@interface OFHTTP: OFObject <OFApplicationDelegate, OFHTTPClientDelegate,
OFStreamDelegate>
{
OFArray OF_GENERIC(OFString *) *_URLs;
size_t _URLIndex;
int _errorCode;
OFString *_outputPath, *_currentFileName;
bool _continue, _force, _detectFileName, _detectFileNameRequest;
bool _detectedFileName, _quiet, _verbose, _insecure, _ignoreStatus;
bool _useUnicode;
OFStream *_body;
of_http_request_method_t _method;
OFMutableDictionary *_clientHeaders;
OFHTTPClient *_HTTPClient;
char *_buffer;
OFStream *_output;
unsigned long long _received, _length, _resumedFrom;
ProgressBar *_progressBar;
}
- (void)downloadNextURL;
@end
OF_APPLICATION_DELEGATE(OFHTTP)
static void
help(OFStream *stream, bool full, int status)
{
[of_stderr writeLine:
OF_LOCALIZED(@"usage",
@"Usage: %[prog] -[cehHmoOPqv] url1 [url2 ...]",
@"prog", [OFApplication programName])];
if (full) {
[stream writeString: @"\n"];
[stream writeLine: OF_LOCALIZED(@"full_usage",
@"Options:\n "
@"-b --body "
@" Specify the file to send as body\n "
@" "
@" (- for standard input)\n "
@"-c --continue "
@" Continue download of existing file\n "
@"-f --force "
@" Force / overwrite existing file\n "
@"-h --help "
@" Show this help\n "
@"-H --header "
@" Add a header (e.g. X-Foo:Bar)\n "
@"-m --method "
@" Set the method of the HTTP request\n "
@"-o --output "
@" Specify output file name\n "
@"-O --detect-filename"
@" Do a HEAD request to detect the file name\n "
@"-P --proxy "
@" Specify SOCKS5 proxy\n "
@"-q --quiet "
@" Quiet mode (no output, except errors)\n "
@"-v --verbose "
@" Verbose mode (print headers)\n "
@" --insecure "
@" Ignore TLS errors and allow insecure redirects\n "
@" --ignore-status "
@" Ignore HTTP status code")];
}
[OFApplication terminateWithStatus: status];
}
static OFString *
fileNameFromContentDisposition(OFString *contentDisposition)
{
void *pool;
const char *UTF8String;
size_t UTF8StringLength;
enum {
DISPOSITION_TYPE,
DISPOSITION_TYPE_SEMICOLON,
DISPOSITION_PARAM_NAME_SKIP_SPACE,
DISPOSITION_PARAM_NAME,
DISPOSITION_PARAM_VALUE,
DISPOSITION_PARAM_QUOTED,
DISPOSITION_PARAM_UNQUOTED,
DISPOSITION_EXPECT_SEMICOLON
} state;
size_t last;
OFString *type = nil, *paramName = nil, *paramValue;
OFMutableDictionary *params;
OFString *fileName;
if (contentDisposition == nil)
return nil;
pool = objc_autoreleasePoolPush();
UTF8String = contentDisposition.UTF8String;
UTF8StringLength = contentDisposition.UTF8StringLength;
state = DISPOSITION_TYPE;
params = [OFMutableDictionary dictionary];
last = 0;
for (size_t i = 0; i < UTF8StringLength; i++) {
switch (state) {
case DISPOSITION_TYPE:
if (UTF8String[i] == ';' || UTF8String[i] == ' ') {
type = [OFString
stringWithUTF8String: UTF8String
length: i];
state = (UTF8String[i] == ';'
? DISPOSITION_PARAM_NAME_SKIP_SPACE
: DISPOSITION_TYPE_SEMICOLON);
last = i + 1;
}
break;
case DISPOSITION_TYPE_SEMICOLON:
if (UTF8String[i] == ';') {
state = DISPOSITION_PARAM_NAME_SKIP_SPACE;
last = i + 1;
} else if (UTF8String[i] != ' ') {
objc_autoreleasePoolPop(pool);
return nil;
}
break;
case DISPOSITION_PARAM_NAME_SKIP_SPACE:
if (UTF8String[i] != ' ') {
state = DISPOSITION_PARAM_NAME;
last = i;
i--;
}
break;
case DISPOSITION_PARAM_NAME:
if (UTF8String[i] == '=') {
paramName = [OFString
stringWithUTF8String: UTF8String + last
length: i - last];
state = DISPOSITION_PARAM_VALUE;
}
break;
case DISPOSITION_PARAM_VALUE:
if (UTF8String[i] == '"') {
state = DISPOSITION_PARAM_QUOTED;
last = i + 1;
} else {
state = DISPOSITION_PARAM_UNQUOTED;
last = i;
i--;
}
break;
case DISPOSITION_PARAM_QUOTED:
if (UTF8String[i] == '"') {
paramValue = [OFString
stringWithUTF8String: UTF8String + last
length: i - last];
[params setObject: paramValue
forKey: paramName.lowercaseString];
state = DISPOSITION_EXPECT_SEMICOLON;
}
break;
case DISPOSITION_PARAM_UNQUOTED:
if (UTF8String[i] <= 31 || UTF8String[i] >= 127)
return nil;
switch (UTF8String[i]) {
case ' ': case '"': case '(': case ')': case ',':
case '/': case ':': case '<': case '=': case '>':
case '?': case '@': case '[': case '\\': case ']':
case '{': case '}':
return nil;
case ';':
paramValue = [OFString
stringWithUTF8String: UTF8String + last
length: i - last];
[params setObject: paramValue
forKey: paramName.lowercaseString];
state = DISPOSITION_PARAM_NAME_SKIP_SPACE;
break;
}
break;
case DISPOSITION_EXPECT_SEMICOLON:
if (UTF8String[i] == ';') {
state = DISPOSITION_PARAM_NAME_SKIP_SPACE;
last = i + 1;
} else if (UTF8String[i] != ' ') {
objc_autoreleasePoolPop(pool);
return nil;
}
break;
}
}
if (state == DISPOSITION_PARAM_UNQUOTED) {
paramValue = [OFString
stringWithUTF8String: UTF8String + last
length: UTF8StringLength - last];
[params setObject: paramValue
forKey: paramName.lowercaseString];
} else if (state != DISPOSITION_EXPECT_SEMICOLON) {
objc_autoreleasePoolPop(pool);
return nil;
}
if (![type isEqual: @"attachment"] ||
(fileName = [params objectForKey: @"filename"]) == nil) {
objc_autoreleasePoolPop(pool);
return nil;
}
fileName = fileName.lastPathComponent;
[fileName retain];
objc_autoreleasePoolPop(pool);
return [fileName autorelease];
}
@implementation OFHTTP
#ifdef OF_HAVE_PLUGINS
+ (void)initialize
{
if (self != [OFHTTP class])
return;
/* Opportunistically try loading ObjOpenSSL and ignore any errors. */
of_dlopen(@"objopenssl", OF_RTLD_LAZY);
}
#endif
- (instancetype)init
{
self = [super init];
@try {
_method = OF_HTTP_REQUEST_METHOD_GET;
_clientHeaders = [[OFMutableDictionary alloc]
initWithObject: @"OFHTTP"
forKey: @"User-Agent"];
_HTTPClient = [[OFHTTPClient alloc] init];
_HTTPClient.delegate = self;
_buffer = of_alloc(1, [OFSystemInfo pageSize]);
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)addHeader: (OFString *)header
{
size_t pos = [header rangeOfString: @":"].location;
OFString *name, *value;
if (pos == OF_NOT_FOUND) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_header",
@"%[prog]: Headers must to be in format name:value!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
name = [header substringToIndex: pos]
.stringByDeletingEnclosingWhitespaces;
value = [header substringFromIndex: pos + 1]
.stringByDeletingEnclosingWhitespaces;
[_clientHeaders setObject: value
forKey: name];
}
- (void)setBody: (OFString *)path
{
OFString *contentLength = nil;
[_body release];
_body = nil;
if ([path isEqual: @"-"])
_body = [of_stdin copy];
else {
_body = [[OFFile alloc] initWithPath: path
mode: @"r"];
@try {
unsigned long long fileSize =
[[OFFileManager defaultManager]
attributesOfItemAtPath: path].fileSize;
contentLength =
[OFString stringWithFormat: @"%ju", fileSize];
[_clientHeaders setObject: contentLength
forKey: @"Content-Length"];
} @catch (OFRetrieveItemAttributesFailedException *e) {
}
}
if (contentLength == nil)
[_clientHeaders setObject: @"chunked"
forKey: @"Transfer-Encoding"];
}
- (void)setMethod: (OFString *)method
{
void *pool = objc_autoreleasePoolPush();
method = method.uppercaseString;
@try {
_method = of_http_request_method_from_string(method);
} @catch (OFInvalidArgumentException *e) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_method",
@"%[prog]: Invalid request method %[method]!",
@"prog", [OFApplication programName],
@"method", method)];
[OFApplication terminateWithStatus: 1];
}
objc_autoreleasePoolPop(pool);
}
- (void)setProxy: (OFString *)proxy
{
@try {
size_t pos = [proxy
rangeOfString: @":"
options: OF_STRING_SEARCH_BACKWARDS].location;
OFString *host;
unsigned long long port;
if (pos == OF_NOT_FOUND)
@throw [OFInvalidFormatException exception];
host = [proxy substringToIndex: pos];
port = [proxy substringFromIndex: pos + 1]
.unsignedLongLongValue;
if (port > UINT16_MAX)
@throw [OFOutOfRangeException exception];
[OFTCPSocket setSOCKS5Host: host];
[OFTCPSocket setSOCKS5Port: (uint16_t)port];
} @catch (OFInvalidFormatException *e) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_proxy",
@"%[prog]: Proxy must to be in format host:port!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
}
- (void)applicationDidFinishLaunching
{
OFString *outputPath;
const of_options_parser_option_t options[] = {
{ 'b', @"body", 1, NULL, NULL },
{ 'c', @"continue", 0, &_continue, NULL },
{ 'f', @"force", 0, &_force, NULL },
{ 'h', @"help", 0, NULL, NULL },
{ 'H', @"header", 1, NULL, NULL },
{ 'm', @"method", 1, NULL, NULL },
{ 'o', @"output", 1, NULL, &outputPath },
{ 'O', @"detect-filename", 0, &_detectFileName, NULL },
{ 'P', @"socks5-proxy", 1, NULL, NULL },
{ 'q', @"quiet", 0, &_quiet, NULL },
{ 'v', @"verbose", 0, &_verbose, NULL },
{ '\0', @"insecure", 0, &_insecure, NULL },
{ '\0', @"ignore-status", 0, &_ignoreStatus, NULL },
{ '\0', nil, 0, NULL, NULL }
};
OFOptionsParser *optionsParser;
of_unichar_t option;
#ifdef OF_HAVE_SANDBOX
OFSandbox *sandbox = [OFSandbox sandbox];
sandbox.allowsStdIO = true;
sandbox.allowsReadingFiles = true;
sandbox.allowsWritingFiles = true;
sandbox.allowsCreatingFiles = true;
sandbox.allowsIPSockets = true;
sandbox.allowsDNS = true;
sandbox.allowsUserDatabaseReading = true;
sandbox.allowsTTY = true;
/* Dropped after parsing options */
sandbox.allowsUnveil = true;
[OFApplication activateSandbox: sandbox];
#endif
#ifndef OF_AMIGAOS
[OFLocale addLanguageDirectory: @LANGUAGE_DIR];
#else
[OFLocale addLanguageDirectory: @"PROGDIR:/share/ofhttp/lang"];
#endif
optionsParser = [OFOptionsParser parserWithOptions: options];
while ((option = [optionsParser nextOption]) != '\0') {
switch (option) {
case 'b':
[self setBody: optionsParser.argument];
break;
case 'h':
help(of_stdout, true, 0);
break;
case 'H':
[self addHeader: optionsParser.argument];
break;
case 'm':
[self setMethod: optionsParser.argument];
break;
case 'P':
[self setProxy: optionsParser.argument];
break;
case ':':
if (optionsParser.lastLongOption != nil)
[of_stderr writeLine:
OF_LOCALIZED(@"long_argument_missing",
@"%[prog]: Argument for option --%[opt] "
@"missing"
@"prog", [OFApplication programName],
@"opt", optionsParser.lastLongOption)];
else {
OFString *optStr = [OFString
stringWithFormat: @"%c",
optionsParser.lastOption];
[of_stderr writeLine:
OF_LOCALIZED(@"argument_missing",
@"%[prog]: Argument for option -%[opt] "
@"missing",
@"prog", [OFApplication programName],
@"opt", optStr)];
}
[OFApplication terminateWithStatus: 1];
break;
case '=':
[of_stderr writeLine:
OF_LOCALIZED(@"option_takes_no_argument",
@"%[prog]: Option --%[opt] takes no argument",
@"prog", [OFApplication programName],
@"opt", optionsParser.lastLongOption)];
[OFApplication terminateWithStatus: 1];
break;
case '?':
if (optionsParser.lastLongOption != nil)
[of_stderr writeLine:
OF_LOCALIZED(@"unknown_long_option",
@"%[prog]: Unknown option: --%[opt]",
@"prog", [OFApplication programName],
@"opt", optionsParser.lastLongOption)];
else {
OFString *optStr = [OFString
stringWithFormat: @"%c",
optionsParser.lastOption];
[of_stderr writeLine:
OF_LOCALIZED(@"unknown_option",
@"%[prog]: Unknown option: -%[opt]",
@"prog", [OFApplication programName],
@"opt", optStr)];
}
[OFApplication terminateWithStatus: 1];
break;
}
}
#ifdef OF_HAVE_SANDBOX
[sandbox unveilPath: (outputPath != nil
? outputPath : OF_PATH_CURRENT_DIRECTORY)
permissions: (_continue ? @"rwc" : @"wc")];
/* In case we use ObjOpenSSL for https later */
[sandbox unveilPath: @"/etc/ssl"
permissions: @"r"];
sandbox.allowsUnveil = false;
[OFApplication activateSandbox: sandbox];
#endif
_outputPath = [outputPath copy];
_URLs = [optionsParser.remainingArguments copy];
if (_URLs.count < 1)
help(of_stderr, false, 1);
if (_quiet && _verbose) {
[of_stderr writeLine: OF_LOCALIZED(@"quiet_xor_verbose",
@"%[prog]: -q / --quiet and -v / --verbose are mutually "
@"exclusive!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
if (_outputPath != nil && _detectFileName) {
[of_stderr writeLine: OF_LOCALIZED(
@"output_xor_detect_filename",
@"%[prog]: -o / --output and -O / --detect-filename are "
@"mutually exclusive!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
if (_outputPath != nil && _URLs.count > 1) {
[of_stderr writeLine:
OF_LOCALIZED(@"output_only_with_one_url",
@"%[prog]: Cannot use -o / --output when more than one URL "
@"has been specified!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
if (_insecure)
_HTTPClient.allowsInsecureRedirects = true;
_useUnicode = ([OFLocale encoding] == OF_STRING_ENCODING_UTF_8);
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
- (void)client: (OFHTTPClient *)client
didCreateSocket: (OFTCPSocket *)sock
request: (OFHTTPRequest *)request
{
if (_insecure && [sock respondsToSelector:
@selector(setVerifiesCertificates:)])
((id <OFTLSSocket>)sock).verifiesCertificates = false;
}
- (void)client: (OFHTTPClient *)client
wantsRequestBody: (OFStream *)body
request: (OFHTTPRequest *)request
{
/* TODO: Do asynchronously and print status */
while (!_body.atEndOfStream) {
char buffer[4096];
size_t length;
length = [_body readIntoBuffer: buffer
length: 4096];
[body writeBuffer: buffer
length: length];
}
}
- (bool)client: (OFHTTPClient *)client
shouldFollowRedirect: (OFURL *)URL
statusCode: (short)statusCode
request: (OFHTTPRequest *)request
response: (OFHTTPResponse *)response
{
if (_verbose) {
void *pool = objc_autoreleasePoolPush();
OFDictionary OF_GENERIC(OFString *, OFString *) *headers =
response.headers;
OFEnumerator *keyEnumerator = [headers keyEnumerator];
OFEnumerator *objectEnumerator = [headers objectEnumerator];
OFString *key, *object;
while ((key = [keyEnumerator nextObject]) != nil &&
(object = [objectEnumerator nextObject]) != nil)
[of_stdout writeFormat: @" %@: %@\n",
key, object];
objc_autoreleasePoolPop(pool);
}
if (!_quiet) {
if (_useUnicode)
[of_stdout writeFormat: @"☇ %@", URL.string];
else
[of_stdout writeFormat: @"< %@", URL.string];
}
_length = 0;
return true;
}
- (bool)stream: (OFStream *)response
didReadIntoBuffer: (void *)buffer
length: (size_t)length
exception: (id)exception
{
if (exception != nil) {
OFString *URL;
[_progressBar stop];
[_progressBar draw];
[_progressBar release];
_progressBar = nil;
if (!_quiet) {
[of_stdout writeString: @"\n "];
[of_stdout writeLine: OF_LOCALIZED(@"download_error",
@"Error!")];
}
URL = [_URLs objectAtIndex: _URLIndex - 1];
[of_stderr writeLine: OF_LOCALIZED(
@"download_failed_exception",
@"%[prog]: Failed to download <%[url]>!\n"
@" %[exception]",
@"prog", [OFApplication programName],
@"url", URL,
@"exception", exception)];
_errorCode = 1;
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
return false;
}
_received += length;
[_output writeBuffer: buffer
length: length];
[_progressBar setReceived: _received];
if (response.atEndOfStream) {
[_progressBar stop];
[_progressBar draw];
[_progressBar release];
_progressBar = nil;
if (!_quiet) {
[of_stdout writeString: @"\n "];
[of_stdout writeLine:
OF_LOCALIZED(@"download_done", @"Done!")];
}
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
return false;
}
return true;
}
- (void)client: (OFHTTPClient *)client
didReceiveHeaders: (OFDictionary OF_GENERIC(OFString *, OFString *) *)headers
statusCode: (short)statusCode
request: (OFHTTPRequest *)request
{
if (statusCode != 206)
_resumedFrom = 0;
if (!_quiet) {
OFString *lengthString =
[headers objectForKey: @"Content-Length"];
OFString *type = [headers objectForKey: @"Content-Type"];
if (_useUnicode)
[of_stdout writeFormat: @" ➜ %hd\n", statusCode];
else
[of_stdout writeFormat: @" -> %hd\n", statusCode];
if (type == nil)
type = OF_LOCALIZED(@"type_unknown", @"unknown");
if (lengthString != nil) {
_length = lengthString.unsignedLongLongValue;
if (_resumedFrom + _length >= GIBIBYTE) {
lengthString = [OFString stringWithFormat:
@"%,.2f",
(float)(_resumedFrom + _length) / GIBIBYTE];
lengthString = OF_LOCALIZED(@"size_gib",
@"%[num] GiB",
@"num", lengthString);
} else if (_resumedFrom + _length >= MEBIBYTE) {
lengthString = [OFString stringWithFormat:
@"%,.2f",
(float)(_resumedFrom + _length) / MEBIBYTE];
lengthString = OF_LOCALIZED(@"size_mib",
@"%[num] MiB",
@"num", lengthString);
} else if (_resumedFrom + _length >= KIBIBYTE) {
lengthString = [OFString stringWithFormat:
@"%,.2f",
(float)(_resumedFrom + _length) / KIBIBYTE];
lengthString = OF_LOCALIZED(@"size_kib",
@"%[num] KiB",
@"num", lengthString);
} else {
lengthString = [OFString stringWithFormat:
@"%jd", _resumedFrom + _length];
lengthString = OF_LOCALIZED(@"size_bytes",
@"["
@" ["
@" {'num == 1': '1 byte'},"
@" {'': '%[num] bytes'}"
@" ]"
@"]".objectByParsingJSON,
@"num", lengthString);
}
} else
lengthString =
OF_LOCALIZED(@"size_unknown", @"unknown");
if (_verbose) {
void *pool = objc_autoreleasePoolPush();
OFEnumerator OF_GENERIC(OFString *) *keyEnumerator =
[headers keyEnumerator];
OFEnumerator OF_GENERIC(OFString *) *objectEnumerator =
[headers objectEnumerator];
OFString *key, *object;
if (statusCode / 100 == 2 && _currentFileName != nil) {
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(
@"info_name_unaligned",
@"Name: %[name]",
@"name", _currentFileName)];
}
while ((key = [keyEnumerator nextObject]) != nil &&
(object = [objectEnumerator nextObject]) != nil)
[of_stdout writeFormat: @" %@: %@\n",
key, object];
objc_autoreleasePoolPop(pool);
} else if (statusCode / 100 == 2 && !_detectFileNameRequest) {
[of_stdout writeString: @" "];
if (_currentFileName != nil)
[of_stdout writeLine: OF_LOCALIZED(@"info_name",
@"Name: %[name]",
@"name", _currentFileName)];
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(@"info_type",
@"Type: %[type]",
@"type", type)];
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(@"info_size",
@"Size: %[size]",
@"size", lengthString)];
}
}
}
- (void)client: (OFHTTPClient *)client
didPerformRequest: (OFHTTPRequest *)request
response: (OFHTTPResponse *)response
exception: (id)exception
{
if (exception != nil) {
if ([exception isKindOfClass:
[OFResolveHostFailedException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine:
OF_LOCALIZED(@"download_resolve_host_failed",
@"%[prog]: Failed to download <%[url]>!\n"
@" Failed to resolve host: %[exception]",
@"prog", [OFApplication programName],
@"url", request.URL.string,
@"exception", exception)];
} else if ([exception isKindOfClass:
[OFConnectionFailedException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine:
OF_LOCALIZED(@"download_failed_connection_failed",
@"%[prog]: Failed to download <%[url]>!\n"
@" Connection failed: %[exception]",
@"prog", [OFApplication programName],
@"url", request.URL.string,
@"exception", exception)];
} else if ([exception isKindOfClass:
[OFInvalidServerReplyException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine: OF_LOCALIZED(
@"download_failed_invalid_server_reply",
@"%[prog]: Failed to download <%[url]>!\n"
@" Invalid server reply!",
@"prog", [OFApplication programName],
@"url", request.URL.string)];
} else if ([exception isKindOfClass:
[OFUnsupportedProtocolException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine: OF_LOCALIZED(@"no_ssl_library",
@"%[prog]: No TLS library loaded!\n"
@" In order to download via https, you need to "
@"preload an TLS library for ObjFW\n"
@" such as ObjOpenSSL!",
@"prog", [OFApplication programName])];
} else if ([exception isKindOfClass:
[OFReadOrWriteFailedException class]]) {
OFString *error = OF_LOCALIZED(
@"download_failed_read_or_write_failed_any",
@"Read or write failed");
if (!_quiet)
[of_stdout writeString: @"\n"];
if ([exception isKindOfClass:
[OFReadFailedException class]])
error = OF_LOCALIZED(
@"download_failed_read_or_write_failed_"
@"read",
@"Read failed");
else if ([exception isKindOfClass:
[OFWriteFailedException class]])
error = OF_LOCALIZED(
@"download_failed_read_or_write_failed_"
@"write",
@"Write failed");
[of_stderr writeLine: OF_LOCALIZED(
@"download_failed_read_or_write_failed",
@"%[prog]: Failed to download <%[url]>!\n"
@" %[error]: %[exception]",
@"prog", [OFApplication programName],
@"url", request.URL.string,
@"error", error,
@"exception", exception)];
} else if ([exception isKindOfClass:
[OFHTTPRequestFailedException class]]) {
short statusCode;
OFString *codeString;
if (_ignoreStatus) {
exception = nil;
goto after_exception_handling;
}
statusCode = response.statusCode;
codeString = [OFString stringWithFormat: @"%hd %@",
statusCode,
of_http_status_code_to_string(statusCode)];
[of_stderr writeLine: OF_LOCALIZED(@"download_failed",
@"%[prog]: Failed to download <%[url]>!\n"
@" HTTP status code: %[code]",
@"prog", [OFApplication programName],
@"url", request.URL.string,
@"code", codeString)];
} else
@throw exception;
_errorCode = 1;
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
return;
}
after_exception_handling:
if (_method == OF_HTTP_REQUEST_METHOD_HEAD)
goto next;
if (_detectFileNameRequest) {
_currentFileName = [fileNameFromContentDisposition(
[response.headers objectForKey: @"Content-Disposition"])
copy];
_detectedFileName = true;
/* Handle this URL on the next -[downloadNextURL] call */
_URLIndex--;
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
return;
}
if ([_outputPath isEqual: @"-"])
_output = of_stdout;
else {
if (!_continue && !_force && [[OFFileManager defaultManager]
fileExistsAtPath: _currentFileName]) {
[of_stderr writeLine:
OF_LOCALIZED(@"output_already_exists",
@"%[prog]: File %[filename] already exists!",
@"prog", [OFApplication programName],
@"filename", _currentFileName)];
_errorCode = 1;
goto next;
}
@try {
OFString *mode =
(response.statusCode == 206 ? @"a" : @"w");
_output = [[OFFile alloc] initWithPath: _currentFileName
mode: mode];
} @catch (OFOpenItemFailedException *e) {
[of_stderr writeLine:
OF_LOCALIZED(@"failed_to_open_output",
@"%[prog]: Failed to open file %[filename]: "
@"%[exception]",
@"prog", [OFApplication programName],
@"filename", _currentFileName,
@"exception", e)];
_errorCode = 1;
goto next;
}
}
if (!_quiet) {
_progressBar = [[ProgressBar alloc]
initWithLength: _length
resumedFrom: _resumedFrom
useUnicode: _useUnicode];
[_progressBar setReceived: _received];
[_progressBar draw];
}
[_currentFileName release];
_currentFileName = nil;
response.delegate = self;
[response asyncReadIntoBuffer: _buffer
length: [OFSystemInfo pageSize]];
return;
next:
[_currentFileName release];
_currentFileName = nil;
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
- (void)downloadNextURL
{
OFString *URLString = nil;
OFURL *URL;
OFMutableDictionary *clientHeaders;
OFHTTPRequest *request;
_received = _length = _resumedFrom = 0;
if (_output != of_stdout)
[_output release];
_output = nil;
if (_URLIndex >= _URLs.count)
[OFApplication terminateWithStatus: _errorCode];
@try {
URLString = [_URLs objectAtIndex: _URLIndex++];
URL = [OFURL URLWithString: URLString];
} @catch (OFInvalidFormatException *e) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_url",
@"%[prog]: Invalid URL: <%[url]>!",
@"prog", [OFApplication programName],
@"url", URLString)];
_errorCode = 1;
goto next;
}
if (![URL.scheme isEqual: @"http"] && ![URL.scheme isEqual: @"https"]) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_scheme",
@"%[prog]: Invalid scheme: <%[url]>!",
@"prog", [OFApplication programName],
@"url", URLString)];
_errorCode = 1;
goto next;
}
clientHeaders = [[_clientHeaders mutableCopy] autorelease];
if (_detectFileName && !_detectedFileName) {
if (!_quiet) {
if (_useUnicode)
[of_stdout writeFormat: @"⠒ %@", URL.string];
else
[of_stdout writeFormat: @"? %@", URL.string];
}
request = [OFHTTPRequest requestWithURL: URL];
request.headers = clientHeaders;
request.method = OF_HTTP_REQUEST_METHOD_HEAD;
_detectFileNameRequest = true;
[_HTTPClient asyncPerformRequest: request];
return;
}
if (!_detectedFileName) {
[_currentFileName release];
_currentFileName = nil;
} else
_detectedFileName = false;
if (_currentFileName == nil)
_currentFileName = [_outputPath copy];
if (_currentFileName == nil)
_currentFileName = [URL.path.lastPathComponent copy];
if (_continue) {
@try {
unsigned long long size =
[[OFFileManager defaultManager]
attributesOfItemAtPath: _currentFileName].fileSize;
OFString *range;
if (size > ULLONG_MAX)
@throw [OFOutOfRangeException exception];
_resumedFrom = (unsigned long long)size;
range = [OFString stringWithFormat: @"bytes=%jd-",
_resumedFrom];
[clientHeaders setObject: range
forKey: @"Range"];
} @catch (OFRetrieveItemAttributesFailedException *e) {
}
}
if (!_quiet) {
if (_useUnicode)
[of_stdout writeFormat: @"⇣ %@", URL.string];
else
[of_stdout writeFormat: @"< %@", URL.string];
}
request = [OFHTTPRequest requestWithURL: URL];
request.headers = clientHeaders;
request.method = _method;
_detectFileNameRequest = false;
[_HTTPClient asyncPerformRequest: request];
return;
next:
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
@end