Files
komp_ac/web/src/pages/admin/table_definition/loader.rs
2026-08-12 20:45:25 +02:00

327 lines
13 KiB
Rust

//! Reads everything the workspace shows.
//!
//! Four calls, in this order: the column-type catalog is the vocabulary the
//! append panel offers, the profile tree names the profiles and their tables,
//! the profile details describe the selected table's columns and scripts, and
//! the rename history explains how those columns got their names.
//! Nothing here trusts the posted selection — a profile or table that is gone
//! is dropped from the selection rather than reported as an error, because the
//! commonest way to get here with a stale one is having just deleted it.
use axum::http::HeaderMap;
use tonic::transport::Channel;
use crate::{
AppState,
auth::{GetAuthorizationRequest, ListGrantableObjectsRequest, ListRolePermissionsRequest, ListRolesRequest},
definitions::{
common::Empty,
table_definition::{
GetColumnAliasRenameHistoryRequest, GetProfileDetailsRequest, MoneyRounding,
table_definition_client::TableDefinitionClient,
},
},
schema::{ColumnCatalog, column_catalog},
services::authenticated_request,
};
use super::state::{
DetailColumn, GLOBAL_SCOPE, LoadError, PageInputs, RenameEntry, ScriptView, TableDefinitionPageState,
TableDetailView, TablePermissionAction, TableRolePermissions, TableSummary,
};
/// Reads the column-type vocabulary on its own.
///
/// The panel's handlers stage and validate a column before the rest of the
/// workspace is read, and they cannot do either without the vocabulary, so
/// they fetch it with this and hand it to [`load_page`] on the draft.
pub(crate) async fn load_column_catalog(
definitions: &mut TableDefinitionClient<Channel>,
headers: &HeaderMap,
) -> Result<ColumnCatalog, LoadError> {
let request =
authenticated_request(headers, Empty {}).map_err(|_| LoadError::Unauthenticated)?;
let response = definitions
.list_column_types(request)
.await
.map_err(|error| match error.code() {
tonic::Code::Unauthenticated => LoadError::Unauthenticated,
_ => LoadError::Backend(error.message().to_string()),
})?;
Ok(column_catalog(response.into_inner().column_types))
}
pub(crate) async fn load_page(
state: AppState,
headers: &HeaderMap,
mut inputs: PageInputs,
) -> Result<TableDefinitionPageState, LoadError> {
let authorization_request = authenticated_request(headers, GetAuthorizationRequest {})
.map_err(|_| LoadError::Unauthenticated)?;
let mut auth = state.auth;
let authorization = auth
.get_authorization(authorization_request)
.await
.map_err(|error| match error.code() {
tonic::Code::Unauthenticated => LoadError::Unauthenticated,
_ => LoadError::Backend(error.message().to_string()),
})?
.into_inner();
if !crate::authz::can_manage(&authorization, crate::authz::STRUCT_TABLE) {
return Err(LoadError::Forbidden);
}
let mut definitions = state.definitions;
// A handler that had to stage or validate a column before it got here has
// already read the vocabulary; anything else reads it now.
if !inputs.columns.catalog.is_loaded() {
inputs.columns.catalog = load_column_catalog(&mut definitions, headers).await?;
}
// Also what the definition below is read through: the catalog describes
// the server-generated companion types as well as the declarable ones.
let catalog = inputs.columns.catalog.clone();
let tree = definitions
.get_profile_tree(
authenticated_request(headers, Empty {}).map_err(|_| LoadError::Unauthenticated)?,
)
.await
.map_err(|error| LoadError::Backend(error.message().to_string()))?
.into_inner();
let profiles = tree
.profiles
.iter()
.map(|profile| profile.name.clone())
.collect::<Vec<_>>();
// A profile that no longer exists takes the table selection with it.
if inputs.selection.profile != GLOBAL_SCOPE && !profiles.contains(&inputs.selection.profile) {
inputs.selection.profile.clear();
inputs.selection.table.clear();
}
let selected_tables = if inputs.selection.is_global() {
tree.profiles.first().map(|profile| profile.tables.as_slice())
} else {
tree.profiles
.iter()
.find(|profile| profile.name == inputs.selection.profile)
.map(|profile| profile.tables.as_slice())
};
let tables = selected_tables
.map(|tables| {
tables
.iter()
.filter(|table| table.global == inputs.selection.is_global())
.map(|table| TableSummary {
name: table.name.clone(),
table_kind: table.table_kind.clone(),
global: table.global,
// One entry per link, named by the column carrying it, so a
// table pointing at one target twice reads as two links.
depends_on: table
.depends_on
.iter()
.map(|dependency| {
format!("{} ({})", dependency.table_name, dependency.column_name)
})
.collect(),
row_display_columns: table.row_display_columns.clone(),
})
.collect::<Vec<_>>()
})
.unwrap_or_default();
if !tables
.iter()
.any(|table| table.name == inputs.selection.table)
{
inputs.selection.table.clear();
}
let detail = match inputs.selection.has_table() {
true => {
let request = GetProfileDetailsRequest {
profile_name: inputs.selection.profile.clone(),
};
let details = definitions
.get_profile_details(
authenticated_request(headers, request)
.map_err(|_| LoadError::Unauthenticated)?,
)
.await
.map_err(|error| LoadError::Backend(error.message().to_string()))?
.into_inner();
details
.tables
.into_iter()
.find(|table| table.name == inputs.selection.table)
.map(|table| TableDetailView {
id: table.id,
columns: table
.columns
.iter()
.map(|column| {
let behavior = table.column_behaviors.get(&column.name);
DetailColumn {
name: column.name.clone(),
sql_type: catalog.sql_type(&column.field_type),
field_type: column.field_type.clone(),
currency: column.currency.clone(),
quantity_ledger: column.quantity_ledger,
rounded: column.rounding == i32::from(MoneyRounding::HalfUp),
generated: behavior.is_some_and(|behavior| behavior.generated),
read_only: behavior.is_some_and(|behavior| behavior.read_only),
generated_from: behavior
.map(|behavior| behavior.generated_from.clone())
.unwrap_or_default(),
// Renaming changes shared table metadata, so an
// incomplete server capability response does
// not grant permission by omission.
renameable: behavior.is_some_and(|behavior| behavior.renameable),
}
})
.collect(),
scripts: table
.scripts
.into_iter()
.map(|script| ScriptView {
target_column: script.target_column,
target_column_type: script.target_column_type,
description: script.description,
script: script.script,
})
.collect(),
row_display_columns: table.row_display_columns,
table_kind: table.table_kind,
name: table.name,
})
}
false => None,
};
// The history is per profile; a selected table narrows it to that table.
let history = match inputs.selection.has_profile() {
true => {
let request = GetColumnAliasRenameHistoryRequest {
profile_name: inputs.selection.profile.clone(),
table_definition_id: detail.as_ref().map(|detail| detail.id),
};
definitions
.get_column_alias_rename_history(
authenticated_request(headers, request)
.map_err(|_| LoadError::Unauthenticated)?,
)
.await
.map_err(|error| LoadError::Backend(error.message().to_string()))?
.into_inner()
.entries
.into_iter()
.map(|entry| RenameEntry {
table_name: entry.table_name,
old_column_name: entry.old_column_name,
new_column_name: entry.new_column_name,
created_at: entry.created_at,
})
.collect()
}
false => Vec::new(),
};
let mut permission_object = String::new();
let mut role_permissions = Vec::new();
if inputs.selection.has_table()
&& crate::authz::can_manage(&authorization, crate::authz::STRUCT_ROLE)
{
let expected_object = crate::authz::table_object(
&inputs.selection.profile,
&inputs.selection.table,
);
let roles = auth
.list_roles(
authenticated_request(headers, ListRolesRequest {})
.map_err(|_| LoadError::Unauthenticated)?,
)
.await
.map_err(|error| LoadError::Backend(error.message().to_string()))?
.into_inner()
.roles;
for role in roles.into_iter().filter(|role| role.kind == "data") {
let grantable = auth
.list_grantable_objects(
authenticated_request(
headers,
ListGrantableObjectsRequest {
target_role: role.name.clone(),
},
)
.map_err(|_| LoadError::Unauthenticated)?,
)
.await
.map_err(|error| LoadError::Backend(error.message().to_string()))?
.into_inner()
.objects
.into_iter()
.find(|object| object.object == expected_object);
let Some(grantable) = grantable else {
continue;
};
permission_object = expected_object.clone();
let permissions = auth
.list_role_permissions(
authenticated_request(
headers,
ListRolePermissionsRequest {
role: role.name.clone(),
},
)
.map_err(|_| LoadError::Unauthenticated)?,
)
.await
.map_err(|error| LoadError::Backend(error.message().to_string()))?
.into_inner();
role_permissions.push(TableRolePermissions {
role: role.name,
actions: grantable
.allowed_actions
.into_iter()
.map(|action| TablePermissionAction {
direct: crate::authz::is_direct_permission(
&permissions.permissions,
&expected_object,
&action,
),
effective: crate::authz::permissions_permit(
&permissions.effective_permissions,
&expected_object,
&action,
),
action,
})
.collect(),
});
}
}
Ok(TableDefinitionPageState {
nav: crate::ui::Nav::new(headers, "admin").with_authorization(&authorization),
profiles,
tables,
detail,
history,
selection: inputs.selection,
columns: inputs.columns,
rename: inputs.rename,
copy: inputs.copy,
invoice: inputs.invoice,
status: inputs.status,
error: inputs.error,
sql: inputs.sql,
generated: inputs.generated,
permission_object,
role_permissions,
})
}