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-rw-r--r--plugins/checksum/checksum.c351
1 files changed, 0 insertions, 351 deletions
diff --git a/plugins/checksum/checksum.c b/plugins/checksum/checksum.c
deleted file mode 100644
index 170daa5b..00000000
--- a/plugins/checksum/checksum.c
+++ /dev/null
@@ -1,351 +0,0 @@
-/* XChat-WDK
- * Copyright (c) 2010-2011 Berke Viktor.
- *
- * Use of OpenSSL SHA256 interface: http://adamlamers.com/?p=5
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <malloc.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <openssl/sha.h>
-
-#include "xchat-plugin.h"
-
-#define BUFSIZE 32768
-#define DEFAULT_MAX_HASH_SIZE 268435456						/* default size is 256 MB */
-#define FILE_BUF_SIZE 512
-
-#ifndef snprintf
-#define snprintf _snprintf
-#endif
-#ifndef stat64
-#define stat64 _stat64
-#endif
-
-static xchat_plugin *ph;									/* plugin handle */
-static int config_fail;										/* variable for config availability */
-
-static void
-sha256_hash_string (unsigned char hash[SHA256_DIGEST_LENGTH], char outputBuffer[65])
-{
-	int i;
-	for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
-	{
-		sprintf (outputBuffer + (i * 2), "%02x", hash[i]);
-	}
-	outputBuffer[64] = 0;
-}
-
-static void
-sha256 (char *string, char outputBuffer[65])
-{
-	int i;
-	unsigned char hash[SHA256_DIGEST_LENGTH];
-	SHA256_CTX sha256;
-
-	SHA256_Init (&sha256);
-	SHA256_Update (&sha256, string, strlen (string));
-	SHA256_Final (hash, &sha256);
-
-	for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
-	{
-		sprintf (outputBuffer + (i * 2), "%02x", hash[i]);
-	}
-	outputBuffer[64] = 0;
-}
-
-static int
-sha256_file (char *path, char outputBuffer[65])
-{
-	int bytesRead;
-	unsigned char *buffer;
-	unsigned char hash[SHA256_DIGEST_LENGTH];
-	SHA256_CTX sha256;
-
-	FILE *file = fopen (path, "rb");
-	if (!file)
-	{
-		return -534;
-	}
-
-	SHA256_Init (&sha256);
-	buffer = malloc (BUFSIZE);
-	bytesRead = 0;
-
-	if (!buffer)
-	{
-		return ENOMEM;
-	}
-
-	while ((bytesRead = fread (buffer, 1, BUFSIZE, file)))
-	{
-		SHA256_Update (&sha256, buffer, bytesRead);
-	}
-
-	SHA256_Final (hash, &sha256);
-	sha256_hash_string (hash, outputBuffer);
-
-	fclose (file);
-	free (buffer);
-	return 0;
-}
-
-static void
-init ()
-{
-	/* check whether the config file exists, if it doesn't, try to create it */
-	FILE * file_in;
-	FILE * file_out;
-	char buffer[FILE_BUF_SIZE];
-
-	config_fail = 0;
-	snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs"));
-
-	if ((file_in = fopen (buffer, "r")) == NULL)
-	{
-		if ((file_out = fopen (buffer, "w")) == NULL)
-		{
-			config_fail = 1;
-		} else
-		{
-			fprintf (file_out, "%llu\n", (unsigned long long) DEFAULT_MAX_HASH_SIZE);
-			fclose (file_out);
-		}
-	} else
-	{
-		fclose (file_in);
-	}
-
-	/* nasty easter egg: if FILE_BUF_SIZE is set to 1024 and you build for x86, you can do fclose ()
-	   at the end of init (), which is plain wrong as it will only work if fopen () != 0. */
-}
-
-static unsigned long long
-get_max_hash_size ()
-{
-	FILE * file_in;
-	char buffer[FILE_BUF_SIZE];
-	unsigned long long max_hash_size;
-
-	if (config_fail)
-	{
-		return (unsigned long long) DEFAULT_MAX_HASH_SIZE;
-	} else
-	{
-		snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs"));
-		file_in = fopen (buffer, "r");
-		fscanf (file_in, "%llu", &max_hash_size);
-
-		fclose (file_in);
-		return max_hash_size;
-	}
-}
-
-static void
-print_size ()
-{
-	unsigned long long size;
-	char suffix[3];
-	
-	size = get_max_hash_size ();
-	
-	if (size >= 1073741824)
-	{
-		size /= 1073741824;
-		snprintf (suffix, sizeof (suffix), "GB");
-	} else if (size >= 1048576)
-	{
-		size /= 1048576;
-		snprintf (suffix, sizeof (suffix), "MB");
-	} else if (size >= 1024)
-	{
-		size /= 1024;
-		snprintf (suffix, sizeof (suffix), "kB");
-	} else
-	{
-		snprintf (suffix, sizeof (suffix), "B");
-	}
-	xchat_printf (ph, "File size limit for checksums: %llu %s\n", size, suffix);
-}
-
-static void
-increase_max_hash_size ()
-{
-	unsigned long long size;
-	FILE * file_out;
-	char buffer[FILE_BUF_SIZE];
-
-	if (config_fail)
-	{
-		xchat_printf (ph, "Config file is unavailable, falling back to the default value\n");
-		print_size ();
-	} else
-	{
-		size = get_max_hash_size ();
-		if (size <= ULLONG_MAX/2)
-		{
-			size *= 2;
-		}
-		
-		snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs"));
-		file_out = fopen (buffer, "w");
-		fprintf (file_out, "%llu\n", size);
-		fclose (file_out);
-		print_size ();
-	}
-}
-
-static void
-decrease_max_hash_size ()
-{
-	unsigned long long size;
-	FILE * file_out;
-	char buffer[FILE_BUF_SIZE];
-
-	if (config_fail)
-	{
-		xchat_printf (ph, "Config file is unavailable, falling back to the default value\n");
-		print_size ();
-	} else
-	{
-		size = get_max_hash_size ();
-		if (size >= 2)
-		{
-			size /= 2;
-		}
-		
-		snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs"));
-		file_out = fopen (buffer, "w");
-		fprintf (file_out, "%llu\n", size);
-		fclose (file_out);
-		print_size ();
-	}
-}
-
-static int
-dccrecv_cb (char *word[], void *userdata)
-{
-	int result;
-	struct stat64 buffer;									/* buffer for storing file info */
-	char sum[65];											/* buffer for checksum */
-
-	result = stat64 (word[2], &buffer);
-	if (result == 0)										/* stat returns 0 on success */
-	{
-		if (buffer.st_size <= get_max_hash_size ())
-		{
-			sha256_file (word[2], sum);						/* word[2] is the full filename */
-			/* try to print the checksum in the privmsg tab of the sender */
-			xchat_set_context (ph, xchat_find_context (ph, NULL, word[3]));
-			xchat_printf (ph, "SHA-256 checksum for %s (local):  %s\n", word[1], sum);
-		} else
-		{
-			xchat_set_context (ph, xchat_find_context (ph, NULL, word[3]));
-			xchat_printf (ph, "SHA-256 checksum for %s (local):  (size limit reached, no checksum calculated, you can increase it with /CHECKSUM INC)\n", word[1]);
-		}
-	} else
-	{
-		xchat_printf (ph, "File access error\n");
-	}
-
-	return XCHAT_EAT_NONE;
-}
-
-static int
-dccoffer_cb (char *word[], void *userdata)
-{
-	int result;
-	struct stat64 buffer;									/* buffer for storing file info */
-	char sum[65];											/* buffer for checksum */
-
-	result = stat64 (word[3], &buffer);
-	if (result == 0)										/* stat returns 0 on success */
-	{
-		if (buffer.st_size <= get_max_hash_size ())
-		{
-			sha256_file (word[3], sum);						/* word[3] is the full filename */
-			xchat_commandf (ph, "quote PRIVMSG %s :SHA-256 checksum for %s (remote): %s", word[2], word[1], sum);
-		} else
-		{
-			xchat_set_context (ph, xchat_find_context (ph, NULL, word[3]));
-			xchat_printf (ph, "quote PRIVMSG %s :SHA-256 checksum for %s (remote): (size limit reached, no checksum calculated)", word[2], word[1]);
-		}
-	} else
-	{
-		xchat_printf (ph, "File access error\n");
-	}
-
-	return XCHAT_EAT_NONE;
-}
-
-static void
-checksum (char *word[], void *userdata)
-{
-	if (!stricmp ("GET", word[2]))
-	{
-		print_size ();
-	} else if (!stricmp ("INC", word[2]))
-	{
-		increase_max_hash_size ();
-	} else if (!stricmp ("DEC", word[2]))
-	{
-		decrease_max_hash_size ();
-	} else
-	{
-		xchat_printf (ph, "Usage: /CHECKSUM GET|INC|DEC\n");
-		xchat_printf (ph, "  GET - print the maximum file size to be hashed\n");
-		xchat_printf (ph, "  INC - double the maximum file size to be hashed\n");
-		xchat_printf (ph, "  DEC - halve the maximum file size to be hashed\n");
-	}
-}
-
-int
-xchat_plugin_init (xchat_plugin *plugin_handle, char **plugin_name, char **plugin_desc, char **plugin_version, char *arg)
-{
-	ph = plugin_handle;
-
-	*plugin_name = "Checksum";
-	*plugin_desc = "Calculate checksum for DCC file transfers";
-	*plugin_version = "2.0";
-
-	init ();
-
-	xchat_hook_command (ph, "CHECKSUM", XCHAT_PRI_NORM, checksum, "Usage: /CHECKSUM GET|INC|DEC", 0);
-	xchat_hook_print (ph, "DCC RECV Complete", XCHAT_PRI_NORM, dccrecv_cb, NULL);
-	xchat_hook_print (ph, "DCC Offer", XCHAT_PRI_NORM, dccoffer_cb, NULL);
-
-	xchat_print (ph, "Checksum plugin loaded\n");
-	return 1;
-}
-
-int
-xchat_plugin_deinit (void)
-{
-	xchat_print (ph, "Checksum plugin unloaded\n");
-	return 1;
-}
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