+++ /dev/null
-// Across-the-wire migration utility for Citadel
-//
-// Copyright (c) 2009-2022 citadel.org
-//
-// This program is open source software. Use, duplication, or disclosure
-// is subject to the terms of the GNU General Public License, version 3.
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <netdb.h>
-#include <errno.h>
-#include <limits.h>
-#include <pwd.h>
-#include <time.h>
-#include <readline/readline.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <libcitadel.h>
-#include "../server/citadel_defs.h"
-#include "axdefs.h"
-#include "../server/sysdep.h"
-#include "../server/config.h"
-#include "../server/citadel_dirs.h"
-
-
-// support for getz() -- (globals would not be appropriate in a multithreaded program)
-static int gmaxlen = 0;
-static char *gdeftext = NULL;
-
-
-// support function for getz()
-static int limit_rl(FILE *dummy) {
- if (rl_end > gmaxlen) {
- return '\b';
- }
- return rl_getc(dummy);
-}
-
-
-// support function for getz()
-static int getz_deftext(void) {
- if (gdeftext) {
- rl_insert_text(gdeftext);
- gdeftext = NULL;
- rl_startup_hook = NULL;
- }
- return 0;
-}
-
-
-// Replacement for gets() that uses libreadline.
-void getz(char *buf, int maxlen, char *default_value, char *prompt) {
- rl_startup_hook = getz_deftext;
- rl_getc_function = limit_rl;
- gmaxlen = maxlen;
- gdeftext = default_value;
- strcpy(buf, readline(prompt));
-}
-
-
-// Exit from the program while displaying an error code
-void ctdlmigrate_exit(int cmdexit) {
- printf("\n\n\033[3%dmExit code %d\033[0m\n", (cmdexit ? 1 : 2), cmdexit);
- exit(cmdexit);
-}
-
-
-// Connect to a Citadel on a remote host using a TCP/IP socket
-static int tcp_connectsock(char *host, char *service) {
- struct in6_addr serveraddr;
- struct addrinfo hints;
- struct addrinfo *res = NULL;
- struct addrinfo *ai = NULL;
- int rc = (-1);
- int sock = (-1);
-
- if ((host == NULL) || IsEmptyStr(host)) {
- return(-1);
- }
- if ((service == NULL) || IsEmptyStr(service)) {
- return(-1);
- }
-
- memset(&hints, 0x00, sizeof(hints));
- hints.ai_flags = AI_NUMERICSERV;
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
-
- // Handle numeric IPv4 and IPv6 addresses
- rc = inet_pton(AF_INET, host, &serveraddr);
- if (rc == 1) { // dotted quad
- hints.ai_family = AF_INET;
- hints.ai_flags |= AI_NUMERICHOST;
- }
- else {
- rc = inet_pton(AF_INET6, host, &serveraddr);
- if (rc == 1) { // IPv6 address
- hints.ai_family = AF_INET6;
- hints.ai_flags |= AI_NUMERICHOST;
- }
- }
-
- // Begin the connection process
- rc = getaddrinfo(host, service, &hints, &res);
- if (rc != 0) {
- fprintf(stderr, "ctdlmigrate: %s\n", strerror(errno));
- return (-1);
- }
-
- // Try all available addresses until we connect to one or until we run out.
- for (ai = res; ai != NULL; ai = ai->ai_next) {
- sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
- if (sock < 0) {
- fprintf(stderr, "ctdlmigrate: %s\n", strerror(errno));
- return (-1);
- }
-
- rc = connect(sock, ai->ai_addr, ai->ai_addrlen);
- if (rc >= 0) {
- return (sock); // Connected!
- }
- else {
- fprintf(stderr, "ctdlmigrate: %s\n", strerror(errno));
- close(sock); // Failed. Close the socket to avoid fd leak!
- }
- }
- return (-1);
-}
-
-
-// Connect to a Citadel on a remote host using a unix domaion socket
-int uds_connectsock(char *sockpath) {
- int s;
- struct sockaddr_un addr;
-
- memset(&addr, 0, sizeof(addr));
- addr.sun_family = AF_UNIX;
- strcpy(addr.sun_path, sockpath);
-
- s = socket(AF_UNIX, SOCK_STREAM, 0);
- if (s < 0) {
- fprintf(stderr, "ctdlmigrate: Can't create socket: %s\n", strerror(errno));
- return(-1);
- }
-
- if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
- fprintf(stderr, "ctdlmigrate: can't connect: %s\n", strerror(errno));
- close(s);
- return(-1);
- }
-
- return s;
-}
-
-
-// input binary data from socket
-void serv_read(int serv_sock, char *buf, int bytes) {
- int len = 0;
- int rlen = 0;
-
- while (len < bytes) {
- rlen = read(serv_sock, &buf[len], bytes - len);
- if (rlen < 1) {
- return;
- }
- len = len + rlen;
- }
-}
-
-
-// send binary to server
-void serv_write(int serv_sock, char *buf, int nbytes) {
- int bytes_written = 0;
- int retval;
- while (bytes_written < nbytes) {
- retval = write(serv_sock, &buf[bytes_written], nbytes - bytes_written);
- if (retval < 1) {
- return;
- }
- bytes_written = bytes_written + retval;
- }
-}
-
-
-// input string from socket - implemented in terms of serv_read()
-void serv_gets(int serv_sock, char *buf) {
- int i;
-
- // Read one character at a time.
- for (i = 0;; i++) {
- serv_read(serv_sock, &buf[i], 1);
- if (buf[i] == '\n' || i == (SIZ-1))
- break;
- }
-
- // If we got a long line, discard characters until the newline.
- if (i == (SIZ-1)) {
- while (buf[i] != '\n') {
- serv_read(serv_sock, &buf[i], 1);
- }
- }
-
- // Strip all trailing nonprintables (crlf)
- buf[i] = 0;
-}
-
-
-// send line to server - implemented in terms of serv_write()
-void serv_puts(int serv_sock, char *buf) {
- serv_write(serv_sock, buf, strlen(buf));
- serv_write(serv_sock, "\n", 1);
-}
-
-
-// send formatted printable data to the server
-void serv_printf(int serv_sock, const char *format, ...) {
- va_list arg_ptr;
- char buf[1024];
-
- va_start(arg_ptr, format);
- if (vsnprintf(buf, sizeof buf, format, arg_ptr) == -1)
- buf[sizeof buf - 2] = '\n';
- serv_write(serv_sock, buf, strlen(buf));
- va_end(arg_ptr);
-}
-
-
-// You know what main() does. If you don't, you shouldn't be trying to understand this program.
-int main(int argc, char *argv[]) {
- char ctdldir[PATH_MAX]=CTDLDIR;
- char yesno[2];
- int cmdexit = 0; // when something fails, set cmdexit to nonzero, and skip to the end
- char buf[PATH_MAX];
-
- char remote_user[128];
- char remote_host[128];
- char remote_pass[128];
- char *remote_port = "504";
-
- int linecount = 0;
- int a;
- int remote_server_socket = (-1);
- int local_admin_socket = (-1);
- int progress = 0;
-
- // Parse command line
- while ((a = getopt(argc, argv, "h:")) != EOF) {
- switch (a) {
- case 'h':
- strcpy(ctdldir, optarg);
- break;
- default:
- fprintf(stderr, "ctdlmigrate: usage: ctdlmigrate [-h server_dir]\n");
- return(1);
- }
- }
-
- if (chdir(ctdldir) != 0) {
- fprintf(stderr, "ctdlmigrate: %s: %s\n", ctdldir, strerror(errno));
- exit(errno);
- }
-
- signal(SIGINT, ctdlmigrate_exit);
- signal(SIGQUIT, ctdlmigrate_exit);
- signal(SIGTERM, ctdlmigrate_exit);
- signal(SIGSEGV, ctdlmigrate_exit);
- signal(SIGHUP, ctdlmigrate_exit);
- signal(SIGPIPE, ctdlmigrate_exit);
-
- printf( "\033[2J\033[H\n"
- " \033[32m╔═══════════════════════════════════════════════╗\n"
- " ║ ║\n"
- " ║ \033[33mCitadel over-the-wire migration utility \033[32m║\n"
- " ║ ║\n"
- " ╚═══════════════════════════════════════════════╝\033[0m\n"
- "\n"
- "This utility is designed to migrate your Citadel installation\n"
- "to a new host system via a network connection, without disturbing\n"
- "the source system. The target may be a different CPU architecture\n"
- "and/or operating system. The source system should be running\n"
- "Citadel version \033[33m%d\033[0m or newer, and the target system should be running\n"
- "either the same version or a newer version.\n"
- "\n"
- "You must run this utility on the TARGET SYSTEM. Any existing data\n"
- "on this system will be ERASED. Your target system will be on this\n"
- "host in %s.\n"
- "\n",
- EXPORT_REV_MIN, ctdldir
- );
-
- getz(yesno, 1, NULL, "Do you wish to continue? ");
- puts(yesno);
- if (tolower(yesno[0]) != 'y') {
- cmdexit = 101;
- }
-
- if (!cmdexit) {
- printf( "\033[2J\033[H\n"
- "\033[32m╔═══════════════════════════════════════════════╗\n"
- "║ ║\n"
- "║ \033[33mValidate source and target systems\033[32m ║\n"
- "║ ║\n"
- "╚═══════════════════════════════════════════════╝\033[0m\n"
- "\n\n");
-
- printf("First we must validate that the local target system is running\n");
- printf("and ready to receive data.\n");
- printf("Checking connectivity to Citadel in %s...\n", ctdldir);
- local_admin_socket = uds_connectsock("citadel-admin.socket");
- if (local_admin_socket < 0) {
- cmdexit = 102;
- }
- }
-
- if (!cmdexit) {
- serv_gets(local_admin_socket, buf);
- puts(buf);
- if (buf[0] != '2') {
- cmdexit = 103;
- }
- }
-
- if (!cmdexit) {
- serv_puts(local_admin_socket, "ECHO Connection to Citadel Server succeeded.");
- serv_gets(local_admin_socket, buf);
- puts(buf);
- if (buf[0] != '2') {
- cmdexit = 104;
- }
- }
-
- if (!cmdexit) {
- printf("\n");
- printf("OK, this side is ready to go. Now we must connect to the source system.\n\n");
-
- getz(remote_host, sizeof remote_host, NULL, "Enter the name or IP address of the source system: ");
- getz(remote_user, sizeof remote_user, "admin", " Enter the user name of an administrator account: ");
- getz(remote_pass, sizeof remote_pass, NULL, " Enter the password for this account: ");
-
- remote_server_socket = tcp_connectsock(remote_host, remote_port);
- if (remote_server_socket < 0) {
- cmdexit = 105;
- }
- }
-
- if (!cmdexit) {
- serv_gets(remote_server_socket, buf);
- puts(buf);
- if (buf[0] != '2') {
- cmdexit = 106;
- }
- }
-
- if (!cmdexit) {
- serv_printf(remote_server_socket, "USER %s\n", remote_user);
- serv_gets(remote_server_socket, buf);
- puts(buf);
- if (buf[0] != '3') {
- cmdexit = 107;
- }
- }
-
- if (!cmdexit) {
- serv_printf(remote_server_socket, "PASS %s\n", remote_pass);
- serv_gets(remote_server_socket, buf);
- puts(buf);
- if (buf[0] != '2') {
- cmdexit = 108;
- }
- }
-
- if (!cmdexit) {
- printf( "\033[2J\033[H\n"
- "\033[32m╔═══════════════════════════════════════════════════════════════════╗\n"
- "║ ║\n"
- "║ \033[33mMigrating from: %-50s\033[32m║\n"
- "║ ║\n"
- "╠═══════════════════════════════════════════════════════════════════╣\n"
- "║ ║\n"
- "║ Lines received: 0 Percent complete: 0 ║\n"
- "║ ║\n"
- "╚═══════════════════════════════════════════════════════════════════╝\033[0m\n"
- "\n", remote_host
- );
- }
-
- if (!cmdexit) {
- serv_puts(remote_server_socket, "MIGR export");
- serv_gets(remote_server_socket, buf);
- if (buf[0] != '1') {
- printf("\n\033[31m%s\033[0m\n", buf);
- cmdexit = 109;
- }
- }
-
- if (!cmdexit) {
- serv_puts(local_admin_socket, "MIGR import");
- serv_gets(local_admin_socket, buf);
- if (buf[0] != '4') {
- printf("\n\033[31m%s\033[0m\n", buf);
- cmdexit = 110;
- }
- }
-
- if (!cmdexit) {
- char *ptr;
- time_t last_update = time(NULL);
-
- while (serv_gets(remote_server_socket, buf), strcmp(buf, "000")) {
- ptr = strchr(buf, '\n');
- if (ptr) *ptr = 0; // remove the newline character
- ++linecount;
- if (!strncasecmp(buf, "<progress>", 10)) {
- progress = atoi(&buf[10]);
- printf("\033[8;65H\033[33m%d\033[0m\033[12;0H\n", progress);
- }
- if (time(NULL) != last_update) {
- last_update = time(NULL);
- printf("\033[8;19H\033[33m%d\033[0m\033[12;0H\n", linecount);
- }
- serv_puts(local_admin_socket, buf);
- }
-
- serv_puts(local_admin_socket, "000");
- }
-
- if ( (cmdexit == 0) && (progress < 100) ) {
- printf("\033[31mERROR: source stream ended before 100 percent of data was received.\033[0m\n");
- cmdexit = 111;
- }
-
- if (!cmdexit) {
- printf("\033[36mMigration is complete. Restarting the target server.\033[0m\n");
- serv_puts(local_admin_socket, "DOWN 1");
- serv_gets(local_admin_socket, buf);
- puts(buf);
- printf("\033[36mIt is recommended that you shut down the source server now.\033[0m\n");
- printf("\033[36mRemember to copy over your SSL keys and file libraries if appropriate.\033[0m\n");
- }
-
- close(remote_server_socket);
- close(local_admin_socket);
- ctdlmigrate_exit(cmdexit);
-}
projects / citadel.git / blobdiff