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lua io.exists (#2771)

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Quentin 2024-02-24 11:10:58 +01:00 committed by GitHub
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5 changed files with 196 additions and 69 deletions
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27
docs/lua/tables/io.md Normal file
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@ -0,0 +1,27 @@
# Table: io
Table for file manipulation. Modified for security purposes.
## Functions (2)
### `open()`
- **Returns:**
- `file_handle`: file handle or nil if can't read / write to the given path.
**Example Usage:**
```lua
file_handle = io.open()
```
### `exists()`
- **Returns:**
- `boolean`: True if the passed file path exists
**Example Usage:**
```lua
boolean = io.exists()
```

52
docs/lua/tables/vehicles.md
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@ -6,58 +6,80 @@ Table containing functions for getting information about vehicles in GTA V.
### `get_vehicle_display_name(vehicle_hash)`
- **Example Usage:**
```lua
log.info(vehicles.get_vehicle_display_name('BTYPE2'))
```
- **Parameters:**
- `vehicle_hash` (Hash): JOAAT hash of the vehicle.
- **Returns:**
- `vehicle_display_string`: String: the in-game display string. If the vehicle is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
**Example Usage:**
```lua
vehicle_display_string = vehicles.get_vehicle_display_name(vehicle_hash)
```
### `get_vehicle_display_name(vehicle_name)`
- **Example Usage:**
```lua
log.info(vehicles.get_vehicle_display_name('BTYPE2'))
```
### `get_vehicle_display_name(vehicle_name)`
- **Parameters:**
- `vehicle_name` (String): Name of the vehicle.
- **Returns:**
- `vehicle_display_string`: String: the in-game display string. If the vehicle is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- **Example Usage:**
**Example Usage:**
```lua
log.info(vehicles.get_vehicle_display_name('BTYPE2'))
vehicle_display_string = vehicles.get_vehicle_display_name(vehicle_name)
```
### `get_all_vehicles_by_class(vehicle_class)`
- **Example Usage:**
```lua
local sports_classics = vehicles.get_all_vehicles_by_class('Sports Classics')
for i = 1, #sports_classics do
log.info(sports_classics[i])
end
```
- **Parameters:**
- `vehicle_class` (String): The vehicle class.
- **Returns:**
- `vehicles`: table<int, String>: a list of all vehicles that match the class passed in. The list can contain anything from 0 to n elements.
- **Example Usage:**
**Example Usage:**
```lua
local sports_classics = vehicles.get_all_vehicles_by_class('Sports Classics')
for i = 1, #sports_classics do
log.info(sports_classics[i])
end
vehicles = vehicles.get_all_vehicles_by_class(vehicle_class)
```
### `get_all_vehicles_by_mfr(manufacturer)`
- **Example Usage:**
```lua
local albanies = vehicles.get_all_vehicles_by_mfr('Albany')
for i = 1, #albanies do
log.info(albanies[i])
end
```
- **Parameters:**
- `manufacturer` (String): The vehicle manufacturer.
- **Returns:**
- `vehicles`: table<int, String>: a list of all vehicles that match the manufacturer passed in. The list can contain anything from 0 to n elements.
- **Example Usage:**
**Example Usage:**
```lua
local albanies = vehicles.get_all_vehicles_by_mfr('Albany')
for i = 1, #albanies do
log.info(albanies[i])
end
```
vehicles = vehicles.get_all_vehicles_by_mfr(manufacturer)
```

114
docs/lua/tables/weapons.md
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@ -6,38 +6,42 @@ Table containing functions for getting information about weapons in GTA V.
### `get_weapon_display_name(weapon_hash)`
- **Example Usage:**
```lua
log.info(weapons.get_weapon_display_name(joaat('WEAPON_REVOLVER')))
```
- **Parameters:**
- `weapon_hash` (Hash): JOAAT hash of the weapon.
- **Returns:**
- `weapon_display_name`: String: the in-game display string. If the weapon is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- **Example Usage:**
**Example Usage:**
```lua
log.info(weapons.get_weapon_display_name(joaat('WEAPON_REVOLVER')))
weapon_display_name = weapons.get_weapon_display_name(weapon_hash)
```
### `get_weapon_display_name(weapon_name)`
- **Example Usage:**
```lua
log.info(weapons.get_weapon_display_name('WEAPON_REVOLVER'))
```
- **Parameters:**
- `weapon_name` (String): Name of the weapon.
- **Returns:**
- `weapon_display_name`: String: the in-game display string. If the weapon is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- **Example Usage:**
**Example Usage:**
```lua
log.info(weapons.get_weapon_display_name('WEAPON_REVOLVER'))
weapon_display_name = weapons.get_weapon_display_name(weapon_name)
```
### `get_all_weapons_of_group_type(group_hash)`
- **Parameters:**
- `group_hash` (Hash): The JOAAT hash of the group the weapon(s) belong to.
- **Returns:**
- `weapons_of_group_type`: table<int, String>: a list of all weapons that match the group hash passed in. The list can contain anything from 0 to n elements.
- **Example Usage:**
```lua
local pistols = weapons.get_all_weapons_of_group_type(joaat('GROUP_PISTOL'))
@ -46,14 +50,19 @@ for i = 1, #pistols do
end
```
### `get_all_weapons_of_group_type(group_name)`
- **Parameters:**
- `group_name` (String): The group the weapon(s) belong to. Can be in either GROUP_ format or not. Parameter is case-insensitive.
- `group_hash` (Hash): The JOAAT hash of the group the weapon(s) belong to.
- **Returns:**
- `weapons_of_group_type`: table<int, String>: a list of all weapons that match the group hash passed in. The list can contain anything from 0 to n elements.
**Example Usage:**
```lua
weapons_of_group_type = weapons.get_all_weapons_of_group_type(group_hash)
```
### `get_all_weapons_of_group_type(group_name)`
- **Example Usage:**
```lua
local pistols = weapons.get_all_weapons_of_group_type('GROUP_PISTOL')
@ -67,13 +76,18 @@ for i = 1, #pistols do
end
```
### `get_all_weapon_components(weapon_hash)`
- **Parameters:**
- `weapon_hash` (Hash): The JOAAT hash of the weapon the component(s) belong to.
- `group_name` (String): The group the weapon(s) belong to. Can be in either GROUP_ format or not. Parameter is case-insensitive.
- **Returns:**
- `weapon_components`: table<int, String>: a list of all components that match the weapon passed in. The list can contain anything from 0 to n elements.
- `weapons_of_group_type`: table<int, String>: a list of all weapons that match the group hash passed in. The list can contain anything from 0 to n elements.
**Example Usage:**
```lua
weapons_of_group_type = weapons.get_all_weapons_of_group_type(group_name)
```
### `get_all_weapon_components(weapon_hash)`
- **Example Usage:**
```lua
@ -83,14 +97,19 @@ for i = 1, #pistol_attachments do
end
```
### `get_all_weapon_components(weapon_name)`
- **Parameters:**
- `weapon_name` (String): The weapon the component(s) belong to.
- `weapon_hash` (Hash): The JOAAT hash of the weapon the component(s) belong to.
- **Returns:**
- `weapon_components`: table<int, String>: a list of all components that match the weapon passed in. The list can contain anything from 0 to n elements.
**Example Usage:**
```lua
weapon_components = weapons.get_all_weapon_components(weapon_hash)
```
### `get_all_weapon_components(weapon_name)`
- **Example Usage:**
```lua
local pistol_attachments = weapons.get_all_weapon_components('WEAPON_PISTOL')
@ -99,54 +118,87 @@ for i = 1, #pistol_attachments do
end
```
### `get_weapon_component_display_name(weapon_component_hash)`
- **Parameters:**
- `weapon_component_hash` (Hash): JOAAT hash of the weapon component.
- `weapon_name` (String): The weapon the component(s) belong to.
- **Returns:**
- `component_display_name`: String: the in-game display string. If the component is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- `weapon_components`: table<int, String>: a list of all components that match the weapon passed in. The list can contain anything from 0 to n elements.
**Example Usage:**
```lua
weapon_components = weapons.get_all_weapon_components(weapon_name)
```
### `get_weapon_component_display_name(weapon_component_hash)`
- **Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_name(joaat('COMPONENT_PISTOL_CLIP_01')))
```
- **Parameters:**
- `weapon_component_hash` (Hash): JOAAT hash of the weapon component.
- **Returns:**
- `component_display_name`: String: the in-game display string. If the component is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
**Example Usage:**
```lua
component_display_name = weapons.get_weapon_component_display_name(weapon_component_hash)
```
### `get_weapon_component_display_name(weapon_component)`
- **Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_name('COMPONENT_PISTOL_CLIP_01'))
```
- **Parameters:**
- `weapon_component` (String): The weapon component.
- **Returns:**
- `component_display_name`: String: the in-game display string. If the component is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- **Example Usage:**
**Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_name('COMPONENT_PISTOL_CLIP_01'))
component_display_name = weapons.get_weapon_component_display_name(weapon_component)
```
### `get_weapon_component_display_desc(weapon_component_hash)`
- **Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_desc(joaat('COMPONENT_PISTOL_CLIP_01')))
```
- **Parameters:**
- `weapon_component_hash` (Hash): JOAAT hash of the weapon component.
- **Returns:**
- `component_display_desc`: String: the in-game display string. If the component is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- **Example Usage:**
**Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_desc(joaat('COMPONENT_PISTOL_CLIP_01')))
component_display_desc = weapons.get_weapon_component_display_desc(weapon_component_hash)
```
### `get_weapon_component_display_desc(weapon_component)`
- **Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_desc('COMPONENT_PISTOL_CLIP_01'))
```
- **Parameters:**
- `weapon_component` (String): The weapon component.
- **Returns:**
- `component_display_desc`: String: the in-game display string. If the component is not found, or the call is made too early, a blank string will be returned. It is guranteed to return a safe value.
- **Example Usage:**
**Example Usage:**
```lua
log.info(weapons.get_weapon_component_display_desc('COMPONENT_PISTOL_CLIP_01'))
```
component_display_desc = weapons.get_weapon_component_display_desc(weapon_component)
```

18
scripts/doc_gen.py
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@ -1,7 +1,7 @@
import os
from enum import Enum
src_folder = "../../src/"
src_folder = "../src/"
lua_api_comment_identifier = "lua api"
lua_api_comment_separator = ":"
@ -597,19 +597,19 @@ def is_lua_doc_comment_startswith(line_lower, starts_with_text):
parse_lua_api_doc(src_folder)
try:
os.makedirs("./tables/")
os.makedirs("../docs/lua/tables/")
except:
pass
for table_name, table in tables.items():
file_name = f"./tables/{table_name}.md"
file_name = f"../docs/lua/tables/{table_name}.md"
if os.path.exists(file_name):
os.remove(file_name)
f = open(file_name, "ba")
f.write(bytes(str(table), "UTF8"))
f.close()
tabs_file_name = f"./tabs.md"
tabs_file_name = f"../docs/lua/tabs.md"
if os.path.exists(tabs_file_name):
os.remove(tabs_file_name)
f = open(tabs_file_name, "a")
@ -641,7 +641,7 @@ for i in range(1, len(tabs_enum) - 1):
f.close()
infraction_file_name = f"../lua/infraction.md"
infraction_file_name = f"../docs/lua/infraction.md"
if os.path.exists(infraction_file_name):
os.remove(infraction_file_name)
f = open(infraction_file_name, "a")
@ -667,12 +667,12 @@ for i in range(0, len(infraction_enum)):
f.close()
try:
os.makedirs("./classes/")
os.makedirs("../docs/lua/classes/")
except:
pass
for class_name, class_ in classes.items():
file_name = f"./classes/{class_name}.md"
file_name = f"../docs/lua/classes/{class_name}.md"
if os.path.exists(file_name):
os.remove(file_name)
f = open(file_name, "ba")
@ -680,7 +680,7 @@ for class_name, class_ in classes.items():
f.close()
commands_file_name = f"./commands.md"
commands_file_name = f"../docs/lua/commands.md"
if os.path.exists(commands_file_name):
os.remove(commands_file_name)
f = open(commands_file_name, "a")
@ -704,7 +704,7 @@ For a complete list of available command functions, please refer to the command
commands = []
with open("./commands_dump.txt", "r") as file:
with open("../docs/lua/commands_dump.txt", "r") as file:
for line in file:
cmd = line.split("|", 1)[1].strip().split("|")
commands.append(cmd)

54
src/lua/lua_module.cpp
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@ -190,24 +190,34 @@ namespace big
m_state["os"] = sandbox_os;
}
static std::optional<std::filesystem::path> make_absolute(const std::filesystem::path& root, const std::filesystem::path& user_path)
{
auto final_path = std::filesystem::weakly_canonical(root / user_path);
auto [root_end, nothing] = std::mismatch(root.begin(), root.end(), final_path.begin());
if (root_end != root.end())
return std::nullopt;
return final_path;
};
void lua_module::sandbox_lua_io_library()
{
auto io = m_state["io"];
sol::table sandbox_io(m_state, sol::create);
m_io_open = io["open"];
m_io_open = io["open"];
// Lua API: Table
// Name: io
// Table for file manipulation. Modified for security purposes.
// Lua API: Function
// Table: io
// Name: open
// Returns: file_handle: file handle or nil if can't read / write to the given path.
sandbox_io["open"] = [this](const std::string& filename, const std::string& mode) {
constexpr auto make_absolute = [](const std::filesystem::path& root, const std::filesystem::path& user_path) -> std::optional<std::filesystem::path> {
auto final_path = std::filesystem::weakly_canonical(root / user_path);
auto [root_end, nothing] = std::mismatch(root.begin(), root.end(), final_path.begin());
if (root_end != root.end())
return std::nullopt;
return final_path;
};
const auto scripts_config_sub_path = make_absolute(g_lua_manager->get_scripts_config_folder().get_path(), filename);
if (!scripts_config_sub_path)
{
@ -220,12 +230,28 @@ namespace big
if (res.get_type() == sol::type::lua_nil)
{
LOG(WARNING) << "Couldn't io.open a file called " << filename << " mode (" << mode << "). Note that io.open is restricted to the scripts_config folder.";
LOG(WARNING) << "Couldn't io.open a file called " << filename << " mode (" << mode << "). Note that io.open is restricted to the scripts_config folder. If you want to check if a file exists, use io.exists";
}
return res;
};
// Lua API: Function
// Table: io
// Name: exists
// Returns: boolean: True if the passed file path exists
sandbox_io["exists"] = [](const std::string& filename) -> bool {
const auto scripts_config_sub_path = make_absolute(g_lua_manager->get_scripts_config_folder().get_path(), filename);
if (!scripts_config_sub_path)
{
LOG(WARNING) << "io.open is restricted to the scripts_config folder, and the filename provided (" << filename << ") is outside of it.";
return false;
}
return std::filesystem::exists(*scripts_config_sub_path);
};
m_state["io"] = sandbox_io;
}
@ -329,4 +355,4 @@ namespace big
return script->is_done();
});
}
}
}