FreeRDP/channels/printer/client/printer_cups.c

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/**
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* FreeRDP: A Remote Desktop Protocol Implementation
* Print Virtual Channel - CUPS driver
*
* Copyright 2010-2011 Vic Lee
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <time.h>
#include <cups/cups.h>
#include <winpr/crt.h>
#include <freerdp/utils/memory.h>
#include <freerdp/utils/svc_plugin.h>
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#include <freerdp/channels/rdpdr.h>
#include "printer_main.h"
#include "printer_cups.h"
typedef struct rdp_cups_printer_driver rdpCupsPrinterDriver;
typedef struct rdp_cups_printer rdpCupsPrinter;
typedef struct rdp_cups_print_job rdpCupsPrintJob;
struct rdp_cups_printer_driver
{
rdpPrinterDriver driver;
int id_sequence;
};
struct rdp_cups_printer
{
rdpPrinter printer;
rdpCupsPrintJob* printjob;
};
struct rdp_cups_print_job
{
rdpPrintJob printjob;
void* printjob_object;
int printjob_id;
};
static void printer_cups_get_printjob_name(char* buf, int size)
{
time_t tt;
struct tm* t;
tt = time(NULL);
t = localtime(&tt);
snprintf(buf, size - 1, "FreeRDP Print Job %d%02d%02d%02d%02d%02d",
t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
t->tm_hour, t->tm_min, t->tm_sec);
}
static void printer_cups_write_printjob(rdpPrintJob* printjob, BYTE* data, int size)
{
rdpCupsPrintJob* cups_printjob = (rdpCupsPrintJob*)printjob;
#ifndef _CUPS_API_1_4
{
FILE* fp;
fp = fopen((const char*)cups_printjob->printjob_object, "a+b");
if (fp == NULL)
{
DEBUG_WARN("failed to open file %s", (char*)cups_printjob->printjob_object);
return;
}
if (fwrite(data, 1, size, fp) < size)
{
DEBUG_WARN("failed to write file %s", (char*)cups_printjob->printjob_object);
}
fclose(fp);
}
#else
cupsWriteRequestData((http_t*)cups_printjob->printjob_object, (const char*)data, size);
#endif
}
static void printer_cups_close_printjob(rdpPrintJob* printjob)
{
rdpCupsPrintJob* cups_printjob = (rdpCupsPrintJob*)printjob;
#ifndef _CUPS_API_1_4
{
char buf[100];
printer_cups_get_printjob_name(buf, sizeof(buf));
if (cupsPrintFile(printjob->printer->name, (const char *)cups_printjob->printjob_object, buf, 0, NULL) == 0)
{
DEBUG_WARN("cupsPrintFile: %s", cupsLastErrorString());
}
unlink(cups_printjob->printjob_object);
free(cups_printjob->printjob_object);
}
#else
cupsFinishDocument((http_t*)cups_printjob->printjob_object, printjob->printer->name);
cups_printjob->printjob_id = 0;
httpClose((http_t*)cups_printjob->printjob_object);
#endif
((rdpCupsPrinter*)printjob->printer)->printjob = NULL;
free(cups_printjob) ;
}
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static rdpPrintJob* printer_cups_create_printjob(rdpPrinter* printer, UINT32 id)
{
rdpCupsPrinter* cups_printer = (rdpCupsPrinter*)printer;
rdpCupsPrintJob* cups_printjob;
if (cups_printer->printjob != NULL)
return NULL;
cups_printjob = xnew(rdpCupsPrintJob);
cups_printjob->printjob.id = id;
cups_printjob->printjob.printer = printer;
cups_printjob->printjob.Write = printer_cups_write_printjob;
cups_printjob->printjob.Close = printer_cups_close_printjob;
#ifndef _CUPS_API_1_4
cups_printjob->printjob_object = _strdup(tmpnam(NULL));
#else
{
char buf[100];
cups_printjob->printjob_object = httpConnectEncrypt(cupsServer(), ippPort(), HTTP_ENCRYPT_IF_REQUESTED);
if (cups_printjob->printjob_object == NULL)
{
DEBUG_WARN("httpConnectEncrypt: %s", cupsLastErrorString());
free(cups_printjob);
return NULL;
}
printer_cups_get_printjob_name(buf, sizeof(buf));
cups_printjob->printjob_id = cupsCreateJob((http_t*)cups_printjob->printjob_object,
printer->name, buf, 0, NULL);
if (cups_printjob->printjob_id == 0)
{
DEBUG_WARN("cupsCreateJob: %s", cupsLastErrorString());
httpClose((http_t*)cups_printjob->printjob_object);
free(cups_printjob);
return NULL;
}
cupsStartDocument((http_t*)cups_printjob->printjob_object,
printer->name, cups_printjob->printjob_id, buf,
CUPS_FORMAT_AUTO, 1);
}
#endif
cups_printer->printjob = cups_printjob;
return (rdpPrintJob*)cups_printjob;
}
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static rdpPrintJob* printer_cups_find_printjob(rdpPrinter* printer, UINT32 id)
{
rdpCupsPrinter* cups_printer = (rdpCupsPrinter*)printer;
if (cups_printer->printjob == NULL)
return NULL;
if (cups_printer->printjob->printjob.id != id)
return NULL;
return (rdpPrintJob*)cups_printer->printjob;
}
static void printer_cups_free_printer(rdpPrinter* printer)
{
rdpCupsPrinter* cups_printer = (rdpCupsPrinter*)printer;
if (cups_printer->printjob)
cups_printer->printjob->printjob.Close((rdpPrintJob*)cups_printer->printjob);
free(printer->name);
free(printer);
}
static rdpPrinter* printer_cups_new_printer(rdpCupsPrinterDriver* cups_driver, const char* name, BOOL is_default)
{
rdpCupsPrinter* cups_printer;
cups_printer = xnew(rdpCupsPrinter);
cups_printer->printer.id = cups_driver->id_sequence++;
cups_printer->printer.name = _strdup(name);
/* This is a generic PostScript printer driver developed by MS, so it should be good in most cases */
cups_printer->printer.driver = "MS Publisher Imagesetter";
cups_printer->printer.is_default = is_default;
cups_printer->printer.CreatePrintJob = printer_cups_create_printjob;
cups_printer->printer.FindPrintJob = printer_cups_find_printjob;
cups_printer->printer.Free = printer_cups_free_printer;
return (rdpPrinter*)cups_printer;
}
static rdpPrinter** printer_cups_enum_printers(rdpPrinterDriver* driver)
{
rdpPrinter** printers;
int num_printers;
cups_dest_t *dests;
cups_dest_t *dest;
int num_dests;
int i;
num_dests = cupsGetDests(&dests);
printers = (rdpPrinter**)xzalloc(sizeof(rdpPrinter*) * (num_dests + 1));
num_printers = 0;
for (i = 0, dest = dests; i < num_dests; i++, dest++)
{
if (dest->instance == NULL)
{
printers[num_printers++] = printer_cups_new_printer((rdpCupsPrinterDriver*)driver,
dest->name, dest->is_default);
}
}
cupsFreeDests(num_dests, dests);
return printers;
}
static rdpPrinter* printer_cups_get_printer(rdpPrinterDriver* driver, const char* name)
{
rdpCupsPrinterDriver* cups_driver = (rdpCupsPrinterDriver*)driver;
return printer_cups_new_printer(cups_driver, name, cups_driver->id_sequence == 1 ? TRUE : FALSE);
}
static rdpCupsPrinterDriver* cups_driver = NULL;
rdpPrinterDriver* printer_cups_get_driver(void)
{
if (cups_driver == NULL)
{
cups_driver = xnew(rdpCupsPrinterDriver);
cups_driver->driver.EnumPrinters = printer_cups_enum_printers;
cups_driver->driver.GetPrinter = printer_cups_get_printer;
cups_driver->id_sequence = 1;
#ifdef _CUPS_API_1_4
DEBUG_SVC("using CUPS API 1.4");
#else
DEBUG_SVC("using CUPS API 1.2");
#endif
}
return (rdpPrinterDriver*)cups_driver;
}