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decode base64 login window parameter

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such as prefill username and password:
    username=ask{base64}YmFzZTY0
    username={base64}YmFzZTY0
    password=ask{base64}YmFzZTs2NCFwYXNzd29yZCM=
    password={base64}YmFzZTs2NCFwYXNzd29yZCM=

';', '#', '!' means comment in .ini files. If prefill username or
password contains such symbols, these can be provided base64 encoded.
This commit is contained in:
Koichiro IWAO 2017-06-22 15:04:16 +09:00 committed by metalefty
parent eae5cdf1fd
commit a89cb93bc7
1 changed files with 26 additions and 2 deletions
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28
xrdp/xrdp_login_wnd.c
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@ -24,6 +24,7 @@
#include "xrdp.h" #include "xrdp.h"
#include "log.h" #include "log.h"
#include "ssl_calls.h"
/*****************************************************************************/ /*****************************************************************************/
/* all login help screen events go here */ /* all login help screen events go here */
@ -339,6 +340,8 @@ xrdp_wm_show_edits(struct xrdp_wm *self, struct xrdp_bitmap *combo)
struct xrdp_bitmap *b; struct xrdp_bitmap *b;
struct xrdp_cfg_globals *globals; struct xrdp_cfg_globals *globals;
char resultIP[256]; char resultIP[256];
char *plain; /* base64 decoded string */
size_t base64_length; /* length of base64 string */
globals = &self->xrdp_config->cfg_globals; globals = &self->xrdp_config->cfg_globals;
@ -366,7 +369,16 @@ xrdp_wm_show_edits(struct xrdp_wm *self, struct xrdp_bitmap *combo)
{ {
value = (char *)list_get_item(mod->values, index); value = (char *)list_get_item(mod->values, index);
if (g_strncmp("ask", value, 3) == 0) /* if the value begins with "{base64}", decode the string following it */
if (g_strncmp("{base64}", value, 8) == 0)
{
base64_length = g_strlen(value + 8);
plain = (char *)g_malloc(base64_length, 0);
base64_decode(plain, value + 8, base64_length);
g_strncpy(value, plain, g_strlen(plain));
free(plain);
}
else if (g_strncmp("ask", value, 3) == 0)
{ {
/* label */ /* label */
b = xrdp_bitmap_create(95, DEFAULT_EDIT_H, self->screen->bpp, b = xrdp_bitmap_create(95, DEFAULT_EDIT_H, self->screen->bpp,
@ -399,7 +411,19 @@ xrdp_wm_show_edits(struct xrdp_wm *self, struct xrdp_bitmap *combo)
b->pointer = 1; b->pointer = 1;
b->tab_stop = 1; b->tab_stop = 1;
b->caption1 = (char *)g_malloc(256, 1); b->caption1 = (char *)g_malloc(256, 1);
g_strncpy(b->caption1, value + 3, 255); /* ask{base64}... 3 for "ask", 8 for "{base64}" */
if (g_strncmp("{base64}", value + 3, 8) == 0)
{
base64_length = g_strlen(value + 3 + 8);
plain = (char *)g_malloc(base64_length, 0);
base64_decode(plain, value + 3 + 8, base64_length);
g_strncpy(b->caption1, plain, 255);
free(plain);
}
else
{
g_strncpy(b->caption1, value + 3, 255);
}
b->edit_pos = g_mbstowcs(0, b->caption1, 0); b->edit_pos = g_mbstowcs(0, b->caption1, 0);
if (self->login_window->focused_control == 0) if (self->login_window->focused_control == 0)