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00024 #include "asterisk.h"
00025
00026 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 228378 $")
00027
00028 #include <stdio.h>
00029 #include <stdlib.h>
00030 #include <string.h>
00031 #include <sys/types.h>
00032
00033 #include "asterisk/module.h"
00034 #include "asterisk/channel.h"
00035 #include "asterisk/pbx.h"
00036 #include "asterisk/logger.h"
00037 #include "asterisk/utils.h"
00038 #include "asterisk/app.h"
00039
00040 static int base64_encode(struct ast_channel *chan, char *cmd, char *data,
00041 char *buf, size_t len)
00042 {
00043 if (ast_strlen_zero(data)) {
00044 ast_log(LOG_WARNING, "Syntax: BASE64_ENCODE(<data>) - missing argument!\n");
00045 return -1;
00046 }
00047
00048 ast_base64encode(buf, (unsigned char *) data, strlen(data), len);
00049
00050 return 0;
00051 }
00052
00053 static int base64_decode(struct ast_channel *chan, char *cmd, char *data,
00054 char *buf, size_t len)
00055 {
00056 int decoded_len;
00057
00058 if (ast_strlen_zero(data)) {
00059 ast_log(LOG_WARNING, "Syntax: BASE64_DECODE(<base_64 string>) - missing argument!\n");
00060 return -1;
00061 }
00062
00063 decoded_len = ast_base64decode((unsigned char *) buf, data, len);
00064 if (decoded_len <= (len - 1)) {
00065 buf[decoded_len] = '\0';
00066 } else {
00067 buf[len - 1] = '\0';
00068 }
00069
00070 return 0;
00071 }
00072
00073 static struct ast_custom_function base64_encode_function = {
00074 .name = "BASE64_ENCODE",
00075 .synopsis = "Encode a string in base64",
00076 .desc = "Returns the base64 string\n",
00077 .syntax = "BASE64_ENCODE(<string>)",
00078 .read = base64_encode,
00079 };
00080
00081 static struct ast_custom_function base64_decode_function = {
00082 .name = "BASE64_DECODE",
00083 .synopsis = "Decode a base64 string",
00084 .desc = "Returns the plain text string\n",
00085 .syntax = "BASE64_DECODE(<base64_string>)",
00086 .read = base64_decode,
00087 };
00088
00089 static int unload_module(void)
00090 {
00091 return ast_custom_function_unregister(&base64_encode_function) |
00092 ast_custom_function_unregister(&base64_decode_function);
00093 }
00094
00095 static int load_module(void)
00096 {
00097 return ast_custom_function_register(&base64_encode_function) |
00098 ast_custom_function_register(&base64_decode_function);
00099 }
00100
00101 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "base64 encode/decode dialplan functions");