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authorHerb Lewis <herb@samba.org>1998-11-11 21:37:44 +0000
committerHerb Lewis <herb@samba.org>1998-11-11 21:37:44 +0000
commit6559aa10d55dd7a71e3b7c7cdee1ff3c7a58ac37 (patch)
tree4d7ef33d51150e903c0fdbeb2fbb667423af7952 /source3
parentdcea9c382d712b310d0c2afb73d1d0321ad4b06a (diff)
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added password change functionality to swat
(This used to be commit 06d4026cf1521766b52766193774f1fd8dd70c81)
Diffstat (limited to 'source3')
-rw-r--r--source3/web/cgi.c39
-rw-r--r--source3/web/swat.c555
2 files changed, 534 insertions, 60 deletions
diff --git a/source3/web/cgi.c b/source3/web/cgi.c
index 38be0de3c6..a11abe074e 100644
--- a/source3/web/cgi.c
+++ b/source3/web/cgi.c
@@ -44,6 +44,7 @@ static int request_post;
static char *query_string;
static char *baseurl;
static char *pathinfo;
+static char *C_user;
static void unescape(char *buf)
{
@@ -311,16 +312,32 @@ static int cgi_handle_authorization(char *line)
user = line;
pass = p+1;
- /* currently only allow connections as root */
- if (strcmp(user,"root")) {
- cgi_setup_error("401 Bad Authorization", "",
- "incorrect username/password");
- }
-
+ /* Save the users name */
+ C_user = strdup(user);
return pass_check(user, pass, strlen(pass), NULL, NULL);
}
+/***************************************************************************
+is this root?
+ ***************************************************************************/
+BOOL is_root()
+{
+ if ((C_user) && (strcmp(C_user,"root") == 0)) {
+ return( True);
+ } else {
+ return( False);
+ }
+}
+
+/***************************************************************************
+return a ptr to the users name
+ ***************************************************************************/
+char * get_user_name()
+{
+ return(C_user);
+}
+
/***************************************************************************
handle a file download
@@ -390,6 +407,16 @@ void cgi_setup(char *rootdir, int auth_required)
}
if (getenv("CONTENT_LENGTH") || getenv("REQUEST_METHOD")) {
+
+ char *x;
+
+ /* Save the users name if available */
+ if (x = getenv("REMOTE_USER")) {
+ C_user = strdup(x);
+ } else {
+ C_user = "";
+ }
+
/* assume we are running under a real web server */
return;
}
diff --git a/source3/web/swat.c b/source3/web/swat.c
index 58915660dc..81dca8fc04 100644
--- a/source3/web/swat.c
+++ b/source3/web/swat.c
@@ -30,6 +30,16 @@
static pstring servicesf = CONFIGFILE;
+/*
+ * Password Management Globals
+ */
+char user[] = "username";
+char old_pswd[] = "old_passwd";
+char new_pswd[] = "new_passwd";
+char new2_pswd[] = "new2_passwd";
+char chg_passwd_flag[] = "chg_passwd_flag";
+char add_user_flag[] = "add_user_flag";
+char disable_user_flag[] = "disable_user_flag";
/* we need these because we link to locking*.o */
void become_root(BOOL save_dir) {}
@@ -37,6 +47,8 @@ static pstring servicesf = CONFIGFILE;
/* We need this because we link to password.o */
BOOL change_oem_password(struct smb_passwd *smbpw, char *new_passwd, BOOL override) {return False;}
+/****************************************************************************
+****************************************************************************/
static int enum_index(int value, struct enum_list *enumlist)
{
int i;
@@ -86,8 +98,9 @@ char *p = parmname;
return parmname;
}
-
-/* include a lump of html in a page */
+/****************************************************************************
+ include a lump of html in a page
+****************************************************************************/
static int include_html(char *fname)
{
FILE *f = fopen(fname,"r");
@@ -109,7 +122,9 @@ static int include_html(char *fname)
return 1;
}
-/* start the page with standard stuff */
+/****************************************************************************
+ start the page with standard stuff
+****************************************************************************/
static void print_header(void)
{
if (!cgi_waspost()) {
@@ -123,8 +138,9 @@ static void print_header(void)
}
}
-
-/* finish off the page */
+/****************************************************************************
+ finish off the page
+****************************************************************************/
static void print_footer(void)
{
if (!include_html("include/footer.html")) {
@@ -132,9 +148,9 @@ static void print_footer(void)
}
}
-
-
-/* display one editable parameter in a form */
+/****************************************************************************
+ display one editable parameter in a form
+****************************************************************************/
static void show_parameter(int snum, struct parm_struct *parm)
{
int i;
@@ -215,7 +231,9 @@ static void show_parameter(int snum, struct parm_struct *parm)
printf("</td></tr>\n");
}
-/* display a set of parameters for a service */
+/****************************************************************************
+ display a set of parameters for a service
+****************************************************************************/
static void show_parameters(int snum, int allparameters, int advanced, int printers)
{
int i = 0;
@@ -278,8 +296,9 @@ static void show_parameters(int snum, int allparameters, int advanced, int print
}
}
-
-/* write a config file */
+/****************************************************************************
+ write a config file
+****************************************************************************/
static void write_config(FILE *f, BOOL show_defaults)
{
fprintf(f, "# Samba config file created using SWAT\n");
@@ -289,8 +308,9 @@ static void write_config(FILE *f, BOOL show_defaults)
lp_dump(f, show_defaults);
}
-
-/* save and reoad the smb.conf config file */
+/****************************************************************************
+ save and reoad the smb.conf config file
+****************************************************************************/
static int save_reload(void)
{
FILE *f;
@@ -314,9 +334,9 @@ static int save_reload(void)
return 1;
}
-
-
-/* commit one parameter */
+/****************************************************************************
+ commit one parameter
+****************************************************************************/
static void commit_parameter(int snum, struct parm_struct *parm, char *v)
{
int i;
@@ -337,7 +357,9 @@ static void commit_parameter(int snum, struct parm_struct *parm, char *v)
lp_do_parameter(snum, parm->label, v);
}
-/* commit a set of parameters for a service */
+/****************************************************************************
+ commit a set of parameters for a service
+****************************************************************************/
static void commit_parameters(int snum)
{
int i = 0;
@@ -354,8 +376,9 @@ static void commit_parameters(int snum)
}
}
-
-/* load the smb.conf file into loadparm. */
+/****************************************************************************
+ load the smb.conf file into loadparm.
+****************************************************************************/
static void load_config(void)
{
if (!lp_load(servicesf,False,True,False)) {
@@ -364,37 +387,49 @@ static void load_config(void)
}
}
-/* spit out the html for a link with an image */
-static void image_link(char *name,char *hlink, char *src, int width, int height)
+/****************************************************************************
+ spit out the html for a link with an image
+****************************************************************************/
+static void image_link(char *name,char *hlink, char *src)
{
- printf("<A HREF=\"%s/%s\"><img width=%d height=%d src=\"/swat/%s\" alt=\"%s\"></A>\n",
- cgi_baseurl(),
- hlink, width, height,
- src, name);
+ printf("<A HREF=\"%s/%s\"><img src=\"/swat/%s\" alt=\"%s\"></A>\n",
+ cgi_baseurl(), hlink, src, name);
}
-/* display the main navigation controls at the top of each page along
- with a title */
+/****************************************************************************
+ display the main navigation controls at the top of each page along
+ with a title
+****************************************************************************/
static void show_main_buttons(void)
{
- image_link("Home", "", "images/home.gif", 50, 50);
- image_link("Globals", "globals", "images/globals.gif", 50, 50);
- image_link("Shares", "shares", "images/shares.gif", 50, 50);
- image_link("Printers", "printers", "images/printers.gif", 50, 50);
- image_link("Status", "status", "images/status.gif", 50, 50);
- image_link("View Config", "viewconfig", "images/viewconfig.gif", 50, 50);
+ image_link("Home", "", "images/home.gif");
+
+ /* Root gets full functionality */
+ if ( is_root() == True) {
+ image_link("Globals", "globals", "images/globals.gif");
+ image_link("Shares", "shares", "images/shares.gif");
+ image_link("Printers", "printers", "images/printers.gif");
+ image_link("Status", "status", "images/status.gif");
+ image_link("View Config", "viewconfig","images/viewconfig.gif");
+ }
+
+ /* Everyone gets this functionality */
+ image_link("Password Management", "passwd", "images/passwd.gif");
printf("<HR>\n");
}
-/* display a welcome page */
+/****************************************************************************
+ display a welcome page
+****************************************************************************/
static void welcome_page(void)
{
include_html("help/welcome.html");
}
-
-/* display the current smb.conf */
+/****************************************************************************
+ display the current smb.conf
+****************************************************************************/
static void viewconfig_page(void)
{
int full_view=0;
@@ -418,8 +453,9 @@ static void viewconfig_page(void)
printf("</form>\n");
}
-
-/* display a globals editing page */
+/****************************************************************************
+ display a globals editing page
+****************************************************************************/
static void globals_page(void)
{
int advanced = 0;
@@ -456,7 +492,9 @@ static void globals_page(void)
printf("</FORM>\n");
}
-/* display a shares editing page */
+/****************************************************************************
+ display a shares editing page
+****************************************************************************/
static void shares_page(void)
{
char *share = cgi_variable("share");
@@ -537,8 +575,405 @@ static void shares_page(void)
printf("</FORM>\n");
}
+/****************************************************************************
+****************************************************************************/
+static void sig_pipe ( int signo)
+{
+ printf("<p> SIGPIPE caught\n");
+}
+
+/****************************************************************************
+ create 2 pipes and use them to feed the smbpasswd program
+****************************************************************************/
+static BOOL talk_to_smbpasswd(char *old, char *new)
+{
+ int i, n, fd1[2], fd2[2];
+ pid_t pid;
+ BOOL rslt;
+ char line[MAX_STRINGLEN + 2]; /* one for newline, one for null */
+
+ if (signal(SIGPIPE, sig_pipe) == SIG_ERR) {
+ printf("<p> signal error");
+ }
+
+ if ((pipe(fd1) < 0) || (pipe(fd2) < 0)) {
+ printf("<p> pipe error");
+ }
+
+ if ((pid = fork()) < 0) {
+ printf("<p> fork error");
+ }
+
+ /*
+ * Create this relationship with the pipes between the parent and
+ * the child as detailed below.
+ *
+ * parent -> fd1[1] -- fd1[0] -> child
+ * parent <- fd2[0] -- fd2[1] <- child
+ *
+ * fd1[0] is turned into child's stdin
+ * fd2[1] is turned into child's stdout
+ * fd2[1] is also turned into child's stderr
+ *
+ */
+ else if (pid > 0) { /* parent */
+
+ int to_child = fd1[1];
+ int from_child = fd2[0];
+ int wstat;
+ pid_t wpid;
+
+ close(fd1[0]); /* parent doesn't need input side of pipe fd1 */
+ close(fd2[1]); /* parent doesn't need output side of pipe fd2 */
+
+ /*
+ * smbpasswd doesn't require any input to disable a user
+ */
+ if (cgi_variable(disable_user_flag)) {
+ /*
+ * smbpasswd requires a regular old user to send their old password
+ */
+ if ( is_root() == False) {
+ n = (strlen(old) <= (MAX_STRINGLEN)) ? strlen(old) : (MAX_STRINGLEN);
+ strncpy( line, old, n);
+ line[n] = '\n'; n++; /* add carriage return */
+ line[n] = 0; /* add null terminator, for debug */
+ if (write( to_child, line, n) != n) {
+ printf("<p> error on write to child");
+ }
+ }
+
+ /*
+ * smbpasswd requires that the new password be sent to it twice
+ */
+ for( i=0; i<2; i++) {
+ n = (strlen(new) <= (MAX_STRINGLEN)) ? strlen(new) : (MAX_STRINGLEN);
+ strncpy( line, new, n);
+ line[n] = '\n'; n++; /* add carriage return */
+ line[n] = 0; /* add null terminator, for debug */
+ if (write( to_child, line, n) != n) {
+ printf("<p> error on write to child");
+ break;
+ }
+ }
+ }
+
+ /*
+ * Wait for smbpasswd to finish
+ */
+ if ((wpid = sys_waitpid(pid, &wstat, 0)) < 0) {
+ printf("<p> problem waiting");
+ }
+
+ /*
+ * Read the answer from the add program
+ */
+ memset( line, '\0', sizeof(line));
+ if ((n = read( from_child, line, MAX_STRINGLEN)) < 0) {
+ printf("<p> error on read from child");
+ }
-/* display a printers editing page */
+ /*
+ * Write the response from smbpasswd to user, if all is well
+ * line[] should be just a null terminated line. We could
+ * check for the null line and not print anything, but we
+ * really should be checking the exit code if we want to be
+ * sure.
+ */
+ line[n] = 0; /* null terminate */
+ printf("<p> %s\n",line);
+
+ close(to_child);
+ close(from_child);
+
+ if (line[0] == '\0') {
+ rslt = True; /* All ok */
+ } else {
+ rslt = False; /* Something didn't work */
+ }
+
+ } else { /* child */
+
+ int from_parent = fd1[0];
+ int to_parent = fd2[1];
+
+ close(fd1[1]); /* child doesn't need output side of pipe fd1 */
+ close(fd2[0]); /* child doesn't need input side of pipe fd2 */
+
+ /*
+ * Turn the from_parent pipe into the childs stdin
+ */
+ if (from_parent != STDIN_FILENO) {
+ if (dup2( from_parent, STDIN_FILENO) != STDIN_FILENO) {
+ printf("<p> dup2 error of stdin");
+ }
+ close( from_parent);
+ }
+
+ /*
+ * Turn the to_parent pipe into the childs stdout
+ */
+ if (to_parent != STDOUT_FILENO) {
+ if (dup2( to_parent, STDOUT_FILENO) != STDOUT_FILENO) {
+ printf("<p> dup2 error of stdout");
+ }
+ close( to_parent);
+ }
+ /*
+ * Make the childs stderr the to_parent pipe also
+ */
+ if (dup2( STDOUT_FILENO, STDERR_FILENO) != STDERR_FILENO) {
+ printf("<p> dup2 error of stdout");
+ }
+
+
+ /* Root can do more */
+ if (is_root() == True) {
+ if (cgi_variable(add_user_flag)) {
+ /*
+ * Add a user
+ */
+ if (execl(SMB_PASSWD_PROGRAM, "smbpasswd", "-s", "-a", cgi_variable(user), (char *) 0) < 0) {
+ printf("<p> execl error of smbpasswd");
+ }
+ } else if (cgi_variable(disable_user_flag)) {
+ /*
+ * Disable a user
+ */
+ if (execl(SMB_PASSWD_PROGRAM, "smbpasswd", "-s", "-d", cgi_variable(user), (char *) 0) < 0) {
+ printf("<p> execl error of smbpasswd");
+ }
+ } else {
+ /*
+ * Change a users password
+ */
+ if (execl(SMB_PASSWD_PROGRAM, "smbpasswd", "-s", cgi_variable(user), (char *) 0) < 0) {
+ printf("<p> execl error of smbpasswd");
+ }
+ }
+ } else {
+ /*
+ * Ordinary users can change any users passwd if they know the old passwd
+ */
+ if (execl(SMB_PASSWD_PROGRAM, "smbpasswd", "-s", (char *) 0) < 0) {
+ printf("<p> execl error of smbpasswd");
+ }
+ }
+ }
+ return(rslt);
+}
+
+/****************************************************************************
+ become the specified uid
+****************************************************************************/
+static BOOL become_uid(uid_t uid)
+{
+#ifdef HAVE_TRAPDOOR_UID
+#ifdef HAVE_SETUIDX
+ /* AIX3 has setuidx which is NOT a trapoor function (tridge) */
+ if (setuidx(ID_EFFECTIVE, uid) != 0) {
+ if (seteuid(uid) != 0) {
+ printf("<p> Can't set uid %d (setuidx)\n", (int)uid);
+ return False;
+ }
+ }
+#endif
+#endif
+
+#ifdef HAVE_SETRESUID
+ if (setresuid(-1,uid,-1) != 0)
+#else
+ if ((seteuid(uid) != 0) && (setuid(uid) != 0))
+#endif
+ {
+ printf("<p> Couldn't set uid %d currently set to (uid %d, euid %d)\n",
+ (int)uid,(int)getuid(), (int)geteuid());
+ if (uid > (uid_t)32000) {
+ printf("<p> Looks like your OS doesn't like high uid values - try using a different account\n");
+
+ }
+ return(False);
+ }
+
+ if (((uid == (uid_t)-1) || ((sizeof(uid_t) == 2) && (uid == 65535))) &&
+ (geteuid() != uid)) {
+ printf("<p> Invalid uid -1. perhaps you have a account with uid 65535?\n");
+ return(False);
+ }
+
+ return(True);
+}
+
+/****************************************************************************
+ become the specified gid
+****************************************************************************/
+static BOOL become_gid(gid_t gid)
+{
+#ifdef HAVE_SETRESUID
+ if (setresgid(-1,gid,-1) != 0)
+#else
+ if (setgid(gid) != 0)
+#endif
+ {
+ printf("<p> Couldn't set gid %d currently set to (gid %d, egid %d)\n",
+ (int)gid,(int)getgid(),(int)getegid());
+ if (gid > 32000) {
+ printf("<p> Looks like your OS doesn't like high gid values - try using a different account\n");
+ }
+ return(False);
+ }
+
+ return(True);
+}
+
+/****************************************************************************
+ become the specified uid and gid
+****************************************************************************/
+static BOOL become_id(uid_t uid,gid_t gid)
+{
+ return(become_gid(gid) && become_uid(uid));
+}
+
+/****************************************************************************
+ do the stuff required to add or change a password
+****************************************************************************/
+static void chg_passwd(void)
+{
+ char *s;
+ struct passwd *pass = NULL;
+ BOOL rslt;
+
+ /* Make sure users name has been specified */
+ if (strlen(cgi_variable(user)) == 0) {
+ printf("<p> Must specify \"User Name\" \n");
+ return;
+ }
+
+ /*
+ * smbpasswd doesn't require anything but the users name to disable the user,
+ * so if that's what we're doing, skip the rest of the checks
+ */
+ if (!cgi_variable(disable_user_flag)) {
+
+ /* If current user is not root, make sure old password has been specified */
+ if ((is_root() == False) && (strlen( cgi_variable(old_pswd)) <= 0)) {
+ printf("<p> Must specify \"Old Password\" \n");
+ return;
+ }
+
+ /* Make sure new passwords have been specified */
+ if ((strlen( cgi_variable(new_pswd )) <= 0) ||
+ (strlen( cgi_variable(new2_pswd)) <= 0)) {
+ printf("<p> Must specify \"New, and Re-typed Passwords\" \n");
+ return;
+ }
+
+ /* Make sure new passwords was typed correctly twice */
+ if (strcmp(cgi_variable(new_pswd), cgi_variable(new2_pswd)) != 0) {
+ printf("<p> Re-typed password didn't match new password\n");
+ return;
+ }
+ }
+
+ /* Get the UID/GID of the user, and become that user */
+ if (is_root() == False) {
+ pass = Get_Pwnam(cgi_variable(user),True);
+ if (pass == NULL) {
+ printf("<p> User uid unknown \n");
+ } else {
+ if (become_id(pass->pw_uid, pass->pw_gid) == False) {
+ printf("<p> uid/gid set failed \n");
+ return;
+ }
+ }
+ }
+
+#ifndef SWAT_DEBUG
+ if (pass) printf("<p> User uid %d gid %d \n", pass->pw_uid, pass->pw_gid);
+ printf("<p> Processes uid %d, euid %d, gid %d, egid %d \n",getuid(),geteuid(),getgid(),getegid());
+ printf("<p> User Name %s \n", cgi_variable(user));
+ printf("<p> Old passwd %s \n", cgi_variable(old_pswd) ? cgi_variable(old_pswd):"");
+ printf("<p> New passwd %s \n", cgi_variable(new_pswd));
+ printf("<p> Re-typed New passwd %s \n", cgi_variable(new2_pswd));
+ printf("<p> flags '%s', '%s', '%s' \n",
+ (cgi_variable( chg_passwd_flag) ? cgi_variable( chg_passwd_flag) : ""),
+ (cgi_variable( add_user_flag) ? cgi_variable( add_user_flag) : ""),
+ (cgi_variable( disable_user_flag) ? cgi_variable( disable_user_flag) : ""));
+#endif /* SWAT_DEBUG */
+
+
+ rslt = talk_to_smbpasswd( cgi_variable(old_pswd), cgi_variable(new_pswd));
+ if (is_root() == False) {
+ if (rslt == True) {
+ printf("<p> The passwd for '%s' has been changed. \n",cgi_variable(user));
+ } else {
+ printf("<p> The passwd for '%s' has NOT been changed. \n",cgi_variable(user));
+ }
+ }
+
+ return;
+}
+
+/****************************************************************************
+ display a password editing page
+****************************************************************************/
+static void passwd_page(void)
+{
+ char *s, *new_name;
+ int i;
+ extern char * get_user_name();
+
+ printf("<H2>Password Manager</H2>\n");
+
+ printf("<FORM name=\"swatform\" method=post>\n");
+
+ printf("<table>\n");
+
+ /*
+ * After the first time through here be nice. If the user
+ * changed the User box text to another users name, remember it.
+ */
+ if ( cgi_variable(user) &&
+ (strcmp(cgi_variable(user), get_user_name()))) {
+ /* User is changing another accounts passwd */
+ new_name = cgi_variable(user);
+ } else {
+ /* User is changing there own passwd */
+ new_name = get_user_name();
+ }
+
+ printf("<p> User Name : <input type=text size=30 name=%s value=%s> \n", user, new_name);
+ if (is_root() == False) {
+ printf("<p> Old Password: <input type=password size=30 name=%s>\n",old_pswd);
+ }
+ printf("<p> New Password: <input type=password size=30 name=%s>\n",new_pswd);
+ printf("<p> Re-type New Password: <input type=password size=30 name=%s>\n",new2_pswd);
+
+ printf("</select></td></tr><p>");
+ printf("<tr><td>");
+ printf("<input type=submit name=%s value=\"Change Password\">", chg_passwd_flag);
+ if (is_root() == True) {
+ printf("<input type=submit name=%s value=\"Add New User\">", add_user_flag);
+ printf("<input type=submit name=%s value=\"Disable User\">", disable_user_flag);
+ }
+ printf("</td>\n");
+
+ /*
+ * If we don't have user information then there's nothing to do. It's probably
+ * the first time through this code.
+ */
+ if (s = cgi_variable(user)) {
+ chg_passwd();
+ }
+
+ printf("</table>");
+
+ printf("</FORM>\n");
+}
+
+/****************************************************************************
+ display a printers editing page
+****************************************************************************/
static void printers_page(void)
{
char *share = cgi_variable("share");
@@ -621,8 +1056,9 @@ static void printers_page(void)
printf("</FORM>\n");
}
-
-
+/****************************************************************************
+ MAIN()
+****************************************************************************/
int main(int argc, char *argv[])
{
extern char *optarg;
@@ -667,22 +1103,33 @@ static void printers_page(void)
page = cgi_pathinfo();
- if (strcmp(page, "globals")==0) {
- globals_page();
- } else if (strcmp(page,"shares")==0) {
- shares_page();
- } else if (strcmp(page,"printers")==0) {
- printers_page();
- } else if (strcmp(page,"status")==0) {
- status_page();
- } else if (strcmp(page,"viewconfig")==0) {
- viewconfig_page();
+ /* Root gets full functionality */
+ if ( is_root() == True) {
+ if (strcmp(page, "globals")==0) {
+ globals_page();
+ } else if (strcmp(page,"shares")==0) {
+ shares_page();
+ } else if (strcmp(page,"printers")==0) {
+ printers_page();
+ } else if (strcmp(page,"status")==0) {
+ status_page();
+ } else if (strcmp(page,"viewconfig")==0) {
+ viewconfig_page();
+ } else if (strcmp(page,"passwd")==0) {
+ passwd_page();
+ } else {
+ welcome_page();
+ }
} else {
- welcome_page();
+ /* Everyone gets this functionality */
+ if (strcmp(page,"passwd")==0) {
+ passwd_page();
+ } else {
+ welcome_page();
+ }
}
print_footer();
return 0;
}
-