Files
chatmail-core/src/dc_qr.rs
2019-07-11 22:09:58 +02:00

341 lines
16 KiB
Rust

use crate::context::Context;
use crate::dc_chat::*;
use crate::dc_contact::*;
use crate::dc_lot::*;
use crate::dc_param::*;
use crate::dc_strencode::*;
use crate::dc_tools::*;
use crate::key::*;
use crate::peerstate::*;
use crate::types::*;
use crate::x::*;
// out-of-band verification
// id=contact
// text1=groupname
// id=contact
// id=contact
// test1=formatted fingerprint
// id=contact
// text1=text
// text1=URL
// text1=error string
pub unsafe fn dc_check_qr(context: &Context, qr: *const libc::c_char) -> *mut dc_lot_t {
let mut current_block: u64;
let mut payload: *mut libc::c_char = 0 as *mut libc::c_char;
// must be normalized, if set
let mut addr: *mut libc::c_char = 0 as *mut libc::c_char;
// must be normalized, if set
let mut fingerprint: *mut libc::c_char = 0 as *mut libc::c_char;
let mut name: *mut libc::c_char = 0 as *mut libc::c_char;
let mut invitenumber: *mut libc::c_char = 0 as *mut libc::c_char;
let mut auth: *mut libc::c_char = 0 as *mut libc::c_char;
let mut qr_parsed: *mut dc_lot_t = dc_lot_new();
let mut chat_id: uint32_t = 0i32 as uint32_t;
let mut device_msg: *mut libc::c_char = 0 as *mut libc::c_char;
let mut grpid: *mut libc::c_char = 0 as *mut libc::c_char;
let mut grpname: *mut libc::c_char = 0 as *mut libc::c_char;
(*qr_parsed).state = 0i32;
if !qr.is_null() {
info!(context, 0, "Scanned QR code: {}", as_str(qr),);
/* split parameters from the qr code
------------------------------------ */
if strncasecmp(
qr,
b"OPENPGP4FPR:\x00" as *const u8 as *const libc::c_char,
strlen(b"OPENPGP4FPR:\x00" as *const u8 as *const libc::c_char),
) == 0i32
{
payload =
dc_strdup(&*qr.offset(strlen(
b"OPENPGP4FPR:\x00" as *const u8 as *const libc::c_char,
) as isize));
let mut fragment: *mut libc::c_char = strchr(payload, '#' as i32);
if !fragment.is_null() {
*fragment = 0i32 as libc::c_char;
fragment = fragment.offset(1isize);
let param: *mut dc_param_t = dc_param_new();
dc_param_set_urlencoded(param, fragment);
addr = dc_param_get(param, 'a' as i32, 0 as *const libc::c_char);
if !addr.is_null() {
let mut urlencoded: *mut libc::c_char =
dc_param_get(param, 'n' as i32, 0 as *const libc::c_char);
if !urlencoded.is_null() {
name = dc_urldecode(urlencoded);
dc_normalize_name(name);
free(urlencoded as *mut libc::c_void);
}
invitenumber = dc_param_get(param, 'i' as i32, 0 as *const libc::c_char);
auth = dc_param_get(param, 's' as i32, 0 as *const libc::c_char);
grpid = dc_param_get(param, 'x' as i32, 0 as *const libc::c_char);
if !grpid.is_null() {
urlencoded = dc_param_get(param, 'g' as i32, 0 as *const libc::c_char);
if !urlencoded.is_null() {
grpname = dc_urldecode(urlencoded);
free(urlencoded as *mut libc::c_void);
}
}
}
dc_param_unref(param);
}
fingerprint = dc_normalize_fingerprint_c(payload);
current_block = 5023038348526654800;
} else if strncasecmp(
qr,
b"mailto:\x00" as *const u8 as *const libc::c_char,
strlen(b"mailto:\x00" as *const u8 as *const libc::c_char),
) == 0i32
{
payload = dc_strdup(
&*qr.offset(strlen(b"mailto:\x00" as *const u8 as *const libc::c_char) as isize),
);
let query: *mut libc::c_char = strchr(payload, '?' as i32);
if !query.is_null() {
*query = 0i32 as libc::c_char
}
addr = dc_strdup(payload);
current_block = 5023038348526654800;
} else if strncasecmp(
qr,
b"SMTP:\x00" as *const u8 as *const libc::c_char,
strlen(b"SMTP:\x00" as *const u8 as *const libc::c_char),
) == 0i32
{
payload = dc_strdup(
&*qr.offset(strlen(b"SMTP:\x00" as *const u8 as *const libc::c_char) as isize),
);
let colon: *mut libc::c_char = strchr(payload, ':' as i32);
if !colon.is_null() {
*colon = 0i32 as libc::c_char
}
addr = dc_strdup(payload);
current_block = 5023038348526654800;
} else if strncasecmp(
qr,
b"MATMSG:\x00" as *const u8 as *const libc::c_char,
strlen(b"MATMSG:\x00" as *const u8 as *const libc::c_char),
) == 0i32
{
/* scheme: `MATMSG:TO:addr...;SUB:subject...;BODY:body...;` - there may or may not be linebreaks after the fields */
/* does not work when the text `TO:` is used in subject/body _and_ TO: is not the first field. we ignore this case. */
let to: *mut libc::c_char = strstr(qr, b"TO:\x00" as *const u8 as *const libc::c_char);
if !to.is_null() {
addr = dc_strdup(&mut *to.offset(3isize));
let semicolon: *mut libc::c_char = strchr(addr, ';' as i32);
if !semicolon.is_null() {
*semicolon = 0i32 as libc::c_char
}
current_block = 5023038348526654800;
} else {
(*qr_parsed).state = 400i32;
(*qr_parsed).text1 =
dc_strdup(b"Bad e-mail address.\x00" as *const u8 as *const libc::c_char);
current_block = 16562876845594826114;
}
} else {
if strncasecmp(
qr,
b"BEGIN:VCARD\x00" as *const u8 as *const libc::c_char,
strlen(b"BEGIN:VCARD\x00" as *const u8 as *const libc::c_char),
) == 0i32
{
let lines: *mut carray = dc_split_into_lines(qr);
let mut i: libc::c_int = 0i32;
while (i as libc::c_uint) < carray_count(lines) {
let key: *mut libc::c_char =
carray_get(lines, i as libc::c_uint) as *mut libc::c_char;
dc_trim(key);
let mut value: *mut libc::c_char = strchr(key, ':' as i32);
if !value.is_null() {
*value = 0i32 as libc::c_char;
value = value.offset(1isize);
let mut semicolon_0: *mut libc::c_char = strchr(key, ';' as i32);
if !semicolon_0.is_null() {
*semicolon_0 = 0i32 as libc::c_char
}
if strcasecmp(key, b"EMAIL\x00" as *const u8 as *const libc::c_char) == 0i32
{
semicolon_0 = strchr(value, ';' as i32);
if !semicolon_0.is_null() {
*semicolon_0 = 0i32 as libc::c_char
}
addr = dc_strdup(value)
} else if strcasecmp(key, b"N\x00" as *const u8 as *const libc::c_char)
== 0i32
{
semicolon_0 = strchr(value, ';' as i32);
if !semicolon_0.is_null() {
semicolon_0 = strchr(semicolon_0.offset(1isize), ';' as i32);
if !semicolon_0.is_null() {
*semicolon_0 = 0i32 as libc::c_char
}
}
name = dc_strdup(value);
dc_str_replace(
&mut name,
b";\x00" as *const u8 as *const libc::c_char,
b",\x00" as *const u8 as *const libc::c_char,
);
dc_normalize_name(name);
}
}
i += 1
}
dc_free_splitted_lines(lines);
}
current_block = 5023038348526654800;
}
match current_block {
16562876845594826114 => {}
_ => {
/* check the paramters
---------------------- */
if !addr.is_null() {
/* urldecoding is needed at least for OPENPGP4FPR but should not hurt in the other cases */
let mut temp: *mut libc::c_char = dc_urldecode(addr);
free(addr as *mut libc::c_void);
addr = temp;
temp = dc_addr_normalize(addr);
free(addr as *mut libc::c_void);
addr = temp;
if !dc_may_be_valid_addr(addr) {
(*qr_parsed).state = 400i32;
(*qr_parsed).text1 = dc_strdup(
b"Bad e-mail address.\x00" as *const u8 as *const libc::c_char,
);
current_block = 16562876845594826114;
} else {
current_block = 14116432890150942211;
}
} else {
current_block = 14116432890150942211;
}
match current_block {
16562876845594826114 => {}
_ => {
if !fingerprint.is_null() {
if strlen(fingerprint) != 40 {
(*qr_parsed).state = 400i32;
(*qr_parsed).text1 = dc_strdup(
b"Bad fingerprint length in QR code.\x00" as *const u8
as *const libc::c_char,
);
current_block = 16562876845594826114;
} else {
current_block = 5409161009579131794;
}
} else {
current_block = 5409161009579131794;
}
match current_block {
16562876845594826114 => {}
_ => {
if !fingerprint.is_null() {
let peerstate = Peerstate::from_fingerprint(
context,
&context.sql,
as_str(fingerprint),
);
if addr.is_null() || invitenumber.is_null() || auth.is_null() {
if let Some(peerstate) = peerstate {
(*qr_parsed).state = 210i32;
let c_addr = peerstate
.addr
.as_ref()
.map(to_cstring)
.unwrap_or_default();
let addr_ptr = if peerstate.addr.is_some() {
c_addr.as_ptr()
} else {
std::ptr::null()
};
(*qr_parsed).id = dc_add_or_lookup_contact(
context,
0 as *const libc::c_char,
addr_ptr,
0x80i32,
0 as *mut libc::c_int,
);
dc_create_or_lookup_nchat_by_contact_id(
context,
(*qr_parsed).id,
2i32,
&mut chat_id,
0 as *mut libc::c_int,
);
device_msg = dc_mprintf(
b"%s verified.\x00" as *const u8
as *const libc::c_char,
peerstate.addr,
)
} else {
(*qr_parsed).text1 =
dc_format_fingerprint_c(fingerprint);
(*qr_parsed).state = 230i32
}
} else {
if !grpid.is_null() && !grpname.is_null() {
(*qr_parsed).state = 202i32;
(*qr_parsed).text1 = dc_strdup(grpname);
(*qr_parsed).text2 = dc_strdup(grpid)
} else {
(*qr_parsed).state = 200i32
}
(*qr_parsed).id = dc_add_or_lookup_contact(
context,
name,
addr,
0x80i32,
0 as *mut libc::c_int,
);
(*qr_parsed).fingerprint = dc_strdup(fingerprint);
(*qr_parsed).invitenumber = dc_strdup(invitenumber);
(*qr_parsed).auth = dc_strdup(auth)
}
} else if !addr.is_null() {
(*qr_parsed).state = 320i32;
(*qr_parsed).id = dc_add_or_lookup_contact(
context,
name,
addr,
0x80i32,
0 as *mut libc::c_int,
)
} else if strstr(
qr,
b"http://\x00" as *const u8 as *const libc::c_char,
) == qr as *mut libc::c_char
|| strstr(
qr,
b"https://\x00" as *const u8 as *const libc::c_char,
) == qr as *mut libc::c_char
{
(*qr_parsed).state = 332i32;
(*qr_parsed).text1 = dc_strdup(qr)
} else {
(*qr_parsed).state = 330i32;
(*qr_parsed).text1 = dc_strdup(qr)
}
if !device_msg.is_null() {
dc_add_device_msg(context, chat_id, device_msg);
}
}
}
}
}
}
}
}
free(addr as *mut libc::c_void);
free(fingerprint as *mut libc::c_void);
free(payload as *mut libc::c_void);
free(name as *mut libc::c_void);
free(invitenumber as *mut libc::c_void);
free(auth as *mut libc::c_void);
free(device_msg as *mut libc::c_void);
free(grpname as *mut libc::c_void);
free(grpid as *mut libc::c_void);
qr_parsed
}