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Implement Registration Token Administrator API (#43)

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This pull request fully implements and documents all of the registration token administrator API endpoints.

**NOTE:** There is a memory leak when listing all of the registration tokens. Debug this before merging.
 
~~Closes~~ Supersedes #37.

Closes #26.

This pull request is based off of #37, which addresses #26. This pull makes a number of improvements to the logic, organization, and behavior of the API endpoints.

Co-authored-by: hatkid <daichi93100@gmail.com>
Co-authored-by: LoaD Accumulator <lda@freetards.xyz>
Co-authored-by: LoaD Accumulator <lda@noreply.git.telodendria.io>
Co-authored-by: lda <lda@freetards.xyz>
Co-authored-by: Load Accumulator <lda@freetards.xyz>
Reviewed-on: Telodendria/Telodendria#43
This commit is contained in:
Jordan Bancino 2023-11-10 09:30:53 -05:00
parent 503bfb6104
commit 2d30719be4
14 changed files with 420 additions and 117 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
Schema/Filter.json
View file

@ -1,4 +1,5 @@
{
"guard": "TELODENDRIA_SCHEMA_FILTER_H",
"header": "Schema\/Filter.h",
"types": {
"FilterRoom": {
@ -116,6 +117,5 @@
},
"type": "struct"
}
},
"guard": "TELODENDRIA_SCHEMA_FILTER_H"
}
}

49
Schema/RegToken.json Normal file
View file

@ -0,0 +1,49 @@
{
"guard": "TELODENDRIA_SCHEMA_REGTOKEN_H",
"header": "Schema\/RegToken.h",
"include": [
"Cytoplasm\/Db.h"
],
"types": {
"Db *": {
"type": "extern"
},
"DbRef *": {
"type": "extern"
},
"RegTokenInfo": {
"fields": {
"db": {
"type": "Db *",
"ignore": true
},
"ref": {
"type": "DbRef *",
"ignore": true
},
"name": {
"type": "string"
},
"created_by": {
"type": "string"
},
"created_on": {
"type": "integer"
},
"expires_on": {
"type": "integer"
},
"used": {
"type": "integer"
},
"uses": {
"type": "integer"
},
"grants": {
"type": "array"
}
},
"type": "struct"
}
}
}

5
docs/CHANGELOG.md
View file

@ -48,6 +48,11 @@ we want a way to give those breaking revisions new endpoints.
to be able to deactivate users.
- Added a **PUT** option to `/_telodendria/admin/v1/config` that gives
the ability to change only a subset of the configuration.
- Implemented the following APIs for managing registration tokens:
- **GET** `/_telodendria/admin/tokens`
- **GET** `/_telodendria/admin/tokens/[token]`
- **POST** `/_telodendria/admin/tokens`
- **DELETE** `/_telodendria/admin/tokens/[token]`
## v0.3.0

1
docs/user/admin/README.md
View file

@ -19,6 +19,7 @@ request.
- [Configuration](config.md)
- [Server Statistics](stats.md)
- [Process Control](proc.md)
- [Registration Tokens](tokens.md)
## API Conventions

106
docs/user/admin/tokens.md Normal file
View file

@ -0,0 +1,106 @@
# Administrator API: Registration Tokens
Telodendria implements registration tokens as specified by the Matrix
specification. These tokens can be used for registration using the
`m.login.registration_token` login type. This API provides a Telodendria
administrator with a mechanism for generating and managing these tokens,
which allows controlled registration on the homeserver.
It is generally safer than completely open registration to use
registration tokens that either expire after a short period of time, or
have a limited number of uses.
## Registration Token
A registration token is represented by the following `RegToken` JSON
object:
| Field | Type | Description |
|-------|------|-------------|
| `name` | `String` | The token identifier; what is used when registering. |
| `created_by` | `String` | The localpart of the user that created this token. |
| `created_on` | `Integer` | A timestamp of when the token was created. |
| `expires_on` | `Integer` | An expiration stamp, or 0 if the token never expires. |
| `used` | `Integer` | The number of times the token has been used. |
| `uses` | `Integer` | The total number of allowed uses, or -1 for unlimited. |
| `grants` | `[String]` | An array of privileges to grant users that register with this token as described in [Privileges](privileges.md). |
All endpoints in this API will operate on some variation of this
structure. The remaining number of uses can be computed by performing
the subtraction: `uses - used`. `used` should never be greater than
`uses` or less than `0`.
Example:
```json
{
"name": "q34jgapo8uq34hg",
"created_by": "admin",
"created_on": 1699467640000,
"expires_on": 0,
"used": 3,
"uses": 5
}
```
## API Endpoints
### **GET** `/_telodendria/admin/v1/tokens`
Get a list of all registration tokens and information about them.
#### 200 Response Format
| Field | Type | Description |
|-------|------|-------------|
| `tokens` | `[RegToken]` | An array of registration tokens. |
### **GET** `/_telodendria/admin/v1/tokens/[name]`
Get information about the specified registration token.
#### Request Parameters
| Field | Type | Description |
|-------|------|-------------|
| `name` | `String` | The name of the token, as it would be used to register a user. |
#### 200 Response Format
This endpoint returns a `RegToken` object that represents the server's
record of the registration token.
### **POST** `/_telodendria/admin/v1/tokens`
Create a new registration token.
#### Request Format
This endpoint accepts a `RegToken` object, as described above. If no
`name` is provided, one will be randomly generated. Note that the fields
`created_by`, `created_on`, and `used` are ignored and set by the server
when this request is made. All other fields may be set by the request
body.
#### 200 Response Format
If the creation of the registration token was successful, a `RegToken`
that represents the server's record of it is returned.
### **DELETE** `/_telodendria/admin/v1/tokens/[name]`
Delete the specified registration token. It will no longer be usable for
the registration of users. Any users that have completed the
`m.login.registration_token` step but have not yet created their account
should still be able to do so until their user-interactive auth session
expires.
#### Request Parameters
| Field | Type | Description |
|-------|------|-------------|
| `name` | `String` | The name of the token, as it would be used to register a user. |
#### 200 Response Format
On success, this endpoint returns an empty JSON object.

68
src/RegToken.c
View file

@ -30,8 +30,10 @@
#include <Cytoplasm/Json.h>
#include <Cytoplasm/Util.h>
#include <Cytoplasm/Str.h>
#include <User.h>
#include <Cytoplasm/Int64.h>
#include <Cytoplasm/Log.h>
#include <User.h>
int
RegTokenValid(RegTokenInfo * token)
@ -99,8 +101,7 @@ RegTokenDelete(RegTokenInfo * token)
{
return 0;
}
Free(token->name);
Free(token->owner);
RegTokenInfoFree(token);
Free(token);
return 1;
}
@ -113,6 +114,8 @@ RegTokenGetInfo(Db * db, char *token)
DbRef *tokenRef;
HashMap *tokenJson;
char *errp = NULL;
if (!RegTokenExists(db, token))
{
return NULL;
@ -126,47 +129,43 @@ RegTokenGetInfo(Db * db, char *token)
tokenJson = DbJson(tokenRef);
ret = Malloc(sizeof(RegTokenInfo));
if (!RegTokenInfoFromJson(tokenJson, ret, &errp))
{
Log(LOG_ERR, "RegTokenGetInfo(): Database decoding error: %s", errp);
RegTokenFree(ret);
return NULL;
}
ret->db = db;
ret->ref = tokenRef;
ret->owner =
StrDuplicate(JsonValueAsString(HashMapGet(tokenJson, "created_by")));
ret->name = StrDuplicate(token);
ret->expires =
JsonValueAsInteger(HashMapGet(tokenJson, "expires_on"));
ret->created =
JsonValueAsInteger(HashMapGet(tokenJson, "created_on"));
ret->uses =
JsonValueAsInteger(HashMapGet(tokenJson, "uses"));
ret->used =
JsonValueAsInteger(HashMapGet(tokenJson, "used"));
ret->grants =
UserDecodePrivileges(HashMapGet(tokenJson, "grants"));
return ret;
}
void
RegTokenFree(RegTokenInfo * tokeninfo)
RegTokenFree(RegTokenInfo *tokeninfo)
{
if (tokeninfo)
{
Free(tokeninfo->name);
Free(tokeninfo->owner);
RegTokenInfoFree(tokeninfo);
Free(tokeninfo);
}
}
int
RegTokenClose(RegTokenInfo * tokeninfo)
{
HashMap *json;
if (!tokeninfo)
{
return 0;
}
/* Write object to database. */
json = RegTokenInfoToJson(tokeninfo);
DbJsonSet(tokeninfo->ref, json); /* Copies json into internal structure. */
JsonFree(json);
return DbUnlock(tokeninfo->db, tokeninfo->ref);
}
static int
@ -202,7 +201,6 @@ RegTokenInfo *
RegTokenCreate(Db * db, char *name, char *owner, UInt64 expires, Int64 uses, int privileges)
{
RegTokenInfo *ret;
HashMap *tokenJson;
UInt64 timestamp = UtilServerTs();
@ -235,26 +233,12 @@ RegTokenCreate(Db * db, char *name, char *owner, UInt64 expires, Int64 uses, int
return NULL;
}
ret->name = StrDuplicate(name);
ret->owner = StrDuplicate(owner);
ret->created_by = StrDuplicate(owner);
ret->used = Int64Create(0, 0);
ret->uses = uses;
ret->created = timestamp;
ret->expires = expires;
ret->grants = privileges;
/* Write user info to database. */
tokenJson = DbJson(ret->ref);
HashMapSet(tokenJson, "created_by",
JsonValueString(ret->owner));
HashMapSet(tokenJson, "created_on",
JsonValueInteger(ret->created));
HashMapSet(tokenJson, "expires_on",
JsonValueInteger(ret->expires));
HashMapSet(tokenJson, "used",
JsonValueInteger(ret->used));
HashMapSet(tokenJson, "uses",
JsonValueInteger(ret->uses));
HashMapSet(tokenJson, "grants", UserEncodePrivileges(privileges));
ret->created_on = timestamp;
ret->expires_on = expires;
ret->grants = UserEncodePrivileges(privileges);
return ret;
}

2
src/Routes.c
View file

@ -87,6 +87,8 @@ RouterBuild(void)
R("/_telodendria/admin/v1/privileges", RoutePrivileges);
R("/_telodendria/admin/v1/privileges/(.*)", RoutePrivileges);
R("/_telodendria/admin/v1/deactivate/(.*)", RouteAdminDeactivate);
R("/_telodendria/admin/v1/tokens/(.*)", RouteAdminTokens);
R("/_telodendria/admin/v1/tokens", RouteAdminTokens);
#undef R

207
src/Routes/RouteAdminTokens.c Normal file
View file

@ -0,0 +1,207 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Routes.h>
#include <Cytoplasm/Json.h>
#include <Cytoplasm/HashMap.h>
#include <Cytoplasm/Str.h>
#include <Cytoplasm/Memory.h>
#include <RegToken.h>
#include <User.h>
ROUTE_IMPL(RouteAdminTokens, path, argp)
{
RouteArgs *args = argp;
HashMap *request = NULL;
HashMap *response = NULL;
char *token;
char *msg;
Db *db = args->matrixArgs->db;
User *user = NULL;
HttpRequestMethod method = HttpRequestMethodGet(args->context);
Array *tokensarray;
Array *tokens;
RegTokenInfo *info;
RegTokenInfo *req;
size_t i;
if (method != HTTP_GET && method != HTTP_POST && method != HTTP_DELETE)
{
msg = "Route only supports GET, POST, and DELETE";
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
return MatrixErrorCreate(M_UNRECOGNIZED, msg);
}
response = MatrixGetAccessToken(args->context, &token);
if (response)
{
goto finish;
}
user = UserAuthenticate(db, token);
if (!user)
{
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
response = MatrixErrorCreate(M_UNKNOWN_TOKEN, NULL);
goto finish;
}
if (!(UserGetPrivileges(user) & USER_ISSUE_TOKENS))
{
msg = "User doesn't have the ISSUE_TOKENS privilege.";
HttpResponseStatus(args->context, HTTP_FORBIDDEN);
response = MatrixErrorCreate(M_FORBIDDEN, msg);
goto finish;
}
switch (method)
{
case HTTP_GET:
if (ArraySize(path) == 0)
{
tokensarray = ArrayCreate();
/* Get all registration tokens */
tokens = DbList(db, 2, "tokens", "registration");
response = HashMapCreate();
for (i = 0; i < ArraySize(tokens); i++)
{
char *tokenname = ArrayGet(tokens, i);
HashMap *jsoninfo;
info = RegTokenGetInfo(db, tokenname);
jsoninfo = RegTokenInfoToJson(info);
RegTokenClose(info);
RegTokenFree(info);
ArrayAdd(tokensarray, JsonValueObject(jsoninfo));
}
JsonSet(response, JsonValueArray(tokensarray), 1, "tokens");
DbListFree(tokens);
break;
}
info = RegTokenGetInfo(db, ArrayGet(path, 0));
if (!info)
{
msg = "Token doesn't exist.";
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
response = MatrixErrorCreate(M_INVALID_PARAM, msg);
goto finish;
}
response = RegTokenInfoToJson(info);
RegTokenClose(info);
RegTokenFree(info);
break;
case HTTP_POST:
request = JsonDecode(HttpServerStream(args->context));
if (!request)
{
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
response = MatrixErrorCreate(M_NOT_JSON, NULL);
goto finish;
}
req = Malloc(sizeof(RegTokenInfo));
memset(req, 0, sizeof(RegTokenInfo));
if (!RegTokenInfoFromJson(request, req, &msg))
{
RegTokenInfoFree(req);
Free(req);
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
response = MatrixErrorCreate(M_BAD_JSON, msg);
goto finish;
}
if (!req->name)
{
req->name = StrRandom(16);
}
/* Create the actual token that will be stored. */
info = RegTokenCreate(db, req->name, UserGetName(user),
req->expires_on, req->uses,
UserDecodePrivileges(req->grants));
if (!info)
{
RegTokenClose(info);
RegTokenFree(info);
RegTokenInfoFree(req);
Free(req);
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
msg = "Cannot create token.";
response = MatrixErrorCreate(M_INVALID_PARAM, msg);
goto finish;
}
response = RegTokenInfoToJson(info);
RegTokenClose(info);
RegTokenFree(info);
RegTokenInfoFree(req);
Free(req);
break;
case HTTP_DELETE:
if (ArraySize(path) == 0)
{
msg = "No registration token given to DELETE /tokens/[token].";
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
response = MatrixErrorCreate(M_INVALID_PARAM, msg);
goto finish;
}
info = RegTokenGetInfo(db, ArrayGet(path, 0));
RegTokenDelete(info);
response = HashMapCreate();
break;
default:
/* Should not be possible. */
break;
}
finish:
UserUnlock(user);
JsonFree(request);
return response;
}

8
src/Routes/RoutePrivileges.c
View file

@ -98,15 +98,15 @@ ROUTE_IMPL(RoutePrivileges, path, argp)
switch (HttpRequestMethodGet(args->context))
{
case HTTP_POST:
privileges = UserDecodePrivileges(val);
privileges = UserDecodePrivileges(JsonValueAsArray(val));
break;
case HTTP_PUT:
privileges = UserGetPrivileges(user);
privileges |= UserDecodePrivileges(val);
privileges |= UserDecodePrivileges(JsonValueAsArray(val));
break;
case HTTP_DELETE:
privileges = UserGetPrivileges(user);
privileges &= ~UserDecodePrivileges(val);
privileges &= ~UserDecodePrivileges(JsonValueAsArray(val));
break;
default:
/* Impossible */
@ -124,7 +124,7 @@ ROUTE_IMPL(RoutePrivileges, path, argp)
/* Fall through */
case HTTP_GET:
response = HashMapCreate();
HashMapSet(response, "privileges", UserEncodePrivileges(UserGetPrivileges(user)));
HashMapSet(response, "privileges", JsonValueArray(UserEncodePrivileges(UserGetPrivileges(user))));
break;
default:
HttpResponseStatus(args->context, HTTP_BAD_REQUEST);

2
src/Routes/RouteRegister.c
View file

@ -276,7 +276,7 @@ ROUTE_IMPL(RouteRegister, path, argp)
if (info)
{
UserSetPrivileges(user, info->grants);
UserSetPrivileges(user, UserDecodePrivileges(info->grants));
RegTokenClose(info);
RegTokenFree(info);
}

29
src/User.c
View file

@ -749,7 +749,7 @@ UserGetPrivileges(User * user)
return USER_NONE;
}
return UserDecodePrivileges(HashMapGet(DbJson(user->ref), "privileges"));
return UserDecodePrivileges(JsonValueAsArray(HashMapGet(DbJson(user->ref), "privileges")));
}
int
@ -768,7 +768,7 @@ UserSetPrivileges(User * user, int privileges)
return 1;
}
val = UserEncodePrivileges(privileges);
val = JsonValueArray(UserEncodePrivileges(privileges));
if (!val)
{
return 0;
@ -779,31 +779,26 @@ UserSetPrivileges(User * user, int privileges)
}
int
UserDecodePrivileges(JsonValue * val)
UserDecodePrivileges(Array * arr)
{
int privileges = USER_NONE;
size_t i;
Array *arr;
if (!val)
if (!arr)
{
goto finish;
}
if (JsonValueType(val) == JSON_ARRAY)
for (i = 0; i < ArraySize(arr); i++)
{
arr = JsonValueAsArray(val);
for (i = 0; i < ArraySize(arr); i++)
JsonValue *val = ArrayGet(arr, i);
if (!val || JsonValueType(val) != JSON_STRING)
{
val = ArrayGet(arr, i);
if (!val || JsonValueType(val) != JSON_STRING)
{
continue;
}
privileges |= UserDecodePrivilege(JsonValueAsString(val));
continue;
}
privileges |= UserDecodePrivilege(JsonValueAsString(val));
}
finish:
@ -851,7 +846,7 @@ UserDecodePrivilege(const char *p)
}
}
JsonValue *
Array *
UserEncodePrivileges(int privileges)
{
Array *arr = ArrayCreate();
@ -883,7 +878,7 @@ UserEncodePrivileges(int privileges)
#undef A
finish:
return JsonValueArray(arr);
return arr;
}
UserId *

50
src/include/RegToken.h
View file

@ -42,54 +42,7 @@
#include <Cytoplasm/Db.h>
#include <Cytoplasm/Int64.h>
/**
* This structure describes a registration token that is in the
* database.
*/
typedef struct RegTokenInfo
{
Db *db;
DbRef *ref;
/*
* The token itself.
*/
char *name;
/*
* Who created this token. Note that this can be NULL if the
* token was created by Telodendria itself.
*/
char *owner;
/*
* How many times the token was used.
*/
Int64 used;
/*
* How many uses are allowed.
*/
Int64 uses;
/*
* Timestamp when this token was created.
*/
UInt64 created;
/*
* Timestamp when this token expires, or 0 if it does not
* expire.
*/
UInt64 expires;
/*
* A bit field describing the privileges this token grants. See
* the User API documentation for the privileges supported.
*/
int grants;
} RegTokenInfo;
#include <Schema/RegToken.h>
/**
* ``Use'' the specified registration token by increasing the used
@ -132,7 +85,6 @@ RegTokenCreate(Db *, char *, char *, UInt64, Int64, int);
* .Fn RegTokenClose .
*/
extern void RegTokenFree(RegTokenInfo *);
/**
* Return a boolean value indicating whether or not the specified token
* is valid. A registration token is only valid if it has not expired

2
src/include/Routes.h
View file

@ -105,6 +105,8 @@ ROUTE(RouteRoomAliases);
ROUTE(RouteAdminDeactivate);
ROUTE(RouteAdminTokens);
#undef ROUTE
#endif

4
src/include/User.h
View file

@ -286,13 +286,13 @@ extern int UserSetPrivileges(User *, int);
* Decode the JSON that represents the user privileges into a packed
* bit field for simple manipulation.
*/
extern int UserDecodePrivileges(JsonValue *);
extern int UserDecodePrivileges(Array *);
/**
* Encode the packed bit field that represents user privileges as a
* JSON value.
*/
extern JsonValue *UserEncodePrivileges(int);
extern Array *UserEncodePrivileges(int);
/**
* Convert a string privilege into its bit in the bit field. This is