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(core) Checks that an ACL formula can be parsed, and prevent saving unparsable ACL rules.

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Summary:
- Fix error-handling in bundleActions(), and wait for the full bundle to complete.
  (The omissions here were making it impossibly to react to errors from inside bundleActions())
- Catch problematic rules early enough to undo them, by trying out ruleCollection.update()
  on updated rules before the updates are applied.
- Added checkAclFormula() call to DocComm that checks parsing and compiling
  formula, and reports errors.
- In UI, prevent saving if any aclFormulas are invalid, or while waiting for the to get checked.

- Also fixed some lint errors

Test Plan: Added a test case of error reporting in ACL formulas.

Reviewers: paulfitz

Reviewed By: paulfitz

Differential Revision: https://phab.getgrist.com/D2689
This commit is contained in:
Dmitry S 2020-12-14 23:19:38 -05:00
parent 3b3ae87ade
commit de35be6b0a
10 changed files with 241 additions and 99 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
app/client/components/DocComm.ts
View File

@ -53,6 +53,7 @@ export class DocComm extends Disposable implements ActiveDocAPI {
public reloadPlugins = this._wrapMethod("reloadPlugins");
public reloadDoc = this._wrapMethod("reloadDoc");
public fork = this._wrapMethod("fork");
public checkAclFormula = this._wrapMethod("checkAclFormula");
public changeUrlIdEmitter = this.autoDispose(new Emitter());

15
app/client/models/DocData.ts
View File

@ -83,7 +83,7 @@ export class DocData extends BaseDocData {
this._bundlesPending++;
// Promise to allow waiting for the result of prepare() callback before it's even called.
let prepareResolve!: (value: T) => void;
let prepareResolve!: (value: T|Promise<T>) => void;
const preparePromise = new Promise<T>(resolve => { prepareResolve = resolve; });
// Manually-triggered promise for when finalize() should be called. It's triggered by user,
@ -100,8 +100,7 @@ export class DocData extends BaseDocData {
this._nextDesc = options.description;
this._lastActionNum = null;
this._triggerBundleFinalize = triggerFinalize;
const value = await options.prepare();
prepareResolve(value);
await prepareResolve(options.prepare());
this._shouldIncludeInBundle = options.shouldIncludeInBundle;
await triggerFinalizePromise;
@ -123,8 +122,8 @@ export class DocData extends BaseDocData {
}
};
this._lastBundlePromise = doBundleActions();
return {preparePromise, triggerFinalize};
const completionPromise = this._lastBundlePromise = doBundleActions();
return {preparePromise, triggerFinalize, completionPromise};
}
// Execute a callback that may send multiple actions, and bundle those actions together. The
@ -146,6 +145,7 @@ export class DocData extends BaseDocData {
return await bundlingInfo.preparePromise;
} finally {
bundlingInfo.triggerFinalize();
await bundlingInfo.completionPromise;
}
}
@ -261,7 +261,7 @@ export interface BundlingOptions<T = unknown> {
/**
* Result of startBundlingActions(), to allow waiting for prepare() to complete, and to trigger
* finalize() manually.
* finalize() manually, and to wait for the full bundle to complete.
*/
export interface BundlingInfo<T = unknown> {
// Promise for when the prepare() has completed. Note that sometimes it's delayed until the
@ -270,4 +270,7 @@ export interface BundlingInfo<T = unknown> {
// Ask DocData to call the finalize callback immediately.
triggerFinalize: () => void;
// Promise for when the bundle has been finalized.
completionPromise: Promise<void>;
}

201
app/client/ui/AccessRules.ts
View File

@ -29,14 +29,23 @@ type RuleRec = Partial<SchemaTypes["_grist_ACLRules"]> & {id?: number, resourceR
type UseCB = <T>(obs: BaseObservable<T>) => T;
// Status of rules, which determines whether the "Save" button is enabled. The order of the values
// matters, as we take the max of all the parts to determine the ultimate status.
enum RuleStatus {
Unchanged,
ChangedValid,
Invalid,
CheckPending,
}
/**
* Top-most container managing state and dom-building for the ACL rule UI.
*/
export class AccessRules extends Disposable {
// Whether anything has changed, i.e. whether to show a "Save" button.
public isAnythingChanged: Computed<boolean>;
private _ruleStatus: Computed<RuleStatus>;
// Parsed rules obtained from DocData during last call to update(). Used for isAnythingChanged.
// Parsed rules obtained from DocData during last call to update(). Used for _ruleStatus.
private _ruleCollection = new ACLRuleCollection();
// Array of all per-table rules.
@ -51,20 +60,28 @@ export class AccessRules extends Disposable {
// Array of all UserAttribute rules.
private _userAttrRules = this.autoDispose(obsArray<ObsUserAttributeRule>());
// Whether the save button should be enabled.
private _savingEnabled: Computed<boolean>;
constructor(private _gristDoc: GristDoc) {
super();
this.isAnythingChanged = Computed.create(this, (use) => {
this._ruleStatus = Computed.create(this, (use) => {
const defRuleSet = use(this._docDefaultRuleSet);
const tableRules = use(this._tableRules);
const userAttr = use(this._userAttrRules);
return (defRuleSet && use(defRuleSet.isChanged)) ||
// If any table was changed or added, some t.isChanged will be set. If there were only
// removals, then tableRules.length will have changed.
tableRules.length !== this._ruleCollection.getAllTableIds().length ||
tableRules.some(t => use(t.isChanged)) ||
userAttr.length !== this._ruleCollection.getUserAttributeRules().size ||
userAttr.some(u => use(u.isChanged));
return Math.max(
defRuleSet ? use(defRuleSet.ruleStatus) : RuleStatus.Unchanged,
// If any tables/userAttrs were changed or added, they will be considered changed. If
// there were only removals, then length will be reduced.
getChangedStatus(tableRules.length < this._ruleCollection.getAllTableIds().length),
getChangedStatus(userAttr.length < this._ruleCollection.getUserAttributeRules().size),
...tableRules.map(t => use(t.ruleStatus)),
...userAttr.map(u => use(u.ruleStatus)),
);
});
this._savingEnabled = Computed.create(this, this._ruleStatus, (use, s) => (s === RuleStatus.ChangedValid));
this.update().catch(reportError);
}
@ -78,7 +95,7 @@ export class AccessRules extends Disposable {
rules.getAllTableIds().map(tableId => TableRules.create(this._tableRules,
tableId, this, rules.getAllColumnRuleSets(tableId), rules.getTableDefaultRuleSet(tableId)))
);
DefaultObsRuleSet.create(this._docDefaultRuleSet, null, undefined, rules.getDocDefaultRuleSet());
DefaultObsRuleSet.create(this._docDefaultRuleSet, this, null, undefined, rules.getDocDefaultRuleSet());
this._userAttrRules.set(
Array.from(rules.getUserAttributeRules().values(), userAttr =>
ObsUserAttributeRule.create(this._userAttrRules, this, userAttr))
@ -89,7 +106,7 @@ export class AccessRules extends Disposable {
* Collect the internal state into records and sync them to the document.
*/
public async save(): Promise<void> {
if (!this.isAnythingChanged.get()) { return; }
if (!this._savingEnabled.get()) { return; }
// Note that if anything has changed, we apply changes relative to the current state of the
// ACL tables (they may have changed by other users). So our changes will win.
@ -169,6 +186,11 @@ export class AccessRules extends Disposable {
}
// Finally we can sync the records.
await syncRecords(rulesTable, newRules);
}).catch(e => {
// Report the error, but go on to update the rules. The user may lose their entries, but
// will see what's in the document. To preserve entries and show what's wrong, we try to
// catch errors earlier.
reportError(e);
});
// Re-populate the state from DocData once the records are synced.
@ -178,12 +200,19 @@ export class AccessRules extends Disposable {
public buildDom() {
return [
cssAddTableRow(
bigBasicButton('Saved', {disabled: true}, dom.hide(this.isAnythingChanged)),
bigPrimaryButton('Save', dom.show(this.isAnythingChanged),
bigBasicButton({disabled: true}, dom.hide(this._savingEnabled),
dom.text((use) => {
const s = use(this._ruleStatus);
return s === RuleStatus.CheckPending ? 'Checking...' :
s === RuleStatus.Invalid ? 'Invalid' : 'Saved';
}),
testId('rules-non-save')
),
bigPrimaryButton('Save', dom.show(this._savingEnabled),
dom.on('click', () => this.save()),
testId('rules-save'),
),
bigBasicButton('Revert', dom.show(this.isAnythingChanged),
bigBasicButton('Revert', dom.show(this._savingEnabled),
dom.on('click', () => this.update()),
testId('rules-revert'),
),
@ -240,6 +269,12 @@ export class AccessRules extends Disposable {
removeItem(this._userAttrRules, userAttr);
}
public async checkAclFormula(text: string): Promise<void> {
if (text) {
return this._gristDoc.docComm.checkAclFormula(text);
}
}
private _addTableRules(tableId: string) {
if (this._tableRules.get().some(t => t.tableId === tableId)) {
throw new Error(`Trying to add TableRules for existing table ${tableId}`);
@ -255,8 +290,8 @@ export class AccessRules extends Disposable {
// Represents all rules for a table.
class TableRules extends Disposable {
// Whether any table rules changed. Always true if this._colRuleSets is undefined.
public isChanged: Computed<boolean>;
// Whether any table rules changed, and if they are valid.
public ruleStatus: Computed<RuleStatus>;
// The column-specific rule sets.
private _columnRuleSets = this.autoDispose(obsArray<ColumnObsRuleSet>());
@ -267,29 +302,32 @@ class TableRules extends Disposable {
// The default rule set (for columns '*'), if one is set.
private _defaultRuleSet = Observable.create<DefaultObsRuleSet|null>(this, null);
constructor(public readonly tableId: string, private _accessRules: AccessRules,
constructor(public readonly tableId: string, public _accessRules: AccessRules,
private _colRuleSets?: RuleSet[], private _defRuleSet?: RuleSet) {
super();
this._columnRuleSets.set(this._colRuleSets?.map(rs =>
ColumnObsRuleSet.create(this._columnRuleSets, this, rs, rs.colIds === '*' ? [] : rs.colIds)) || []);
ColumnObsRuleSet.create(this._columnRuleSets, this._accessRules, this, rs,
rs.colIds === '*' ? [] : rs.colIds)) || []);
if (!this._colRuleSets) {
// Must be a newly-created TableRules object. Just create a default RuleSet (for tableId:*)
DefaultObsRuleSet.create(this._defaultRuleSet, this, this._haveColumnRules);
DefaultObsRuleSet.create(this._defaultRuleSet, this._accessRules, this, this._haveColumnRules);
} else if (this._defRuleSet) {
DefaultObsRuleSet.create(this._defaultRuleSet, this, this._haveColumnRules, this._defRuleSet);
DefaultObsRuleSet.create(this._defaultRuleSet, this._accessRules, this, this._haveColumnRules,
this._defRuleSet);
}
this.isChanged = Computed.create(this, (use) => {
if (!this._colRuleSets) { return true; } // This TableRules object must be newly-added
this.ruleStatus = Computed.create(this, (use) => {
const columnRuleSets = use(this._columnRuleSets);
const d = use(this._defaultRuleSet);
return (
return Math.max(
getChangedStatus(
!this._colRuleSets || // This TableRules object must be newly-added
Boolean(d) !== Boolean(this._defRuleSet) || // Default rule set got added or removed
(d && use(d.isChanged)) || // Or changed
columnRuleSets.length < this._colRuleSets.length || // There was a removal
columnRuleSets.some(rs => use(rs.isChanged)) // There was an addition or a change.
);
columnRuleSets.length < this._colRuleSets.length // There was a removal
),
d ? use(d.ruleStatus) : RuleStatus.Unchanged, // Default rule set got changed.
...columnRuleSets.map(rs => use(rs.ruleStatus))); // Column rule set was added or changed.
});
}
@ -364,12 +402,12 @@ class TableRules extends Disposable {
}
private _addColumnRuleSet() {
this._columnRuleSets.push(ColumnObsRuleSet.create(this._columnRuleSets, this, undefined, []));
this._columnRuleSets.push(ColumnObsRuleSet.create(this._columnRuleSets, this._accessRules, this, undefined, []));
}
private _addDefaultRuleSet() {
if (!this._defaultRuleSet.get()) {
DefaultObsRuleSet.create(this._defaultRuleSet, this, this._haveColumnRules);
DefaultObsRuleSet.create(this._defaultRuleSet, this._accessRules, this, this._haveColumnRules);
}
}
}
@ -377,8 +415,8 @@ class TableRules extends Disposable {
// Represents one RuleSet, for a combination of columns in one table, or the default RuleSet for
// all remaining columns in a table.
abstract class ObsRuleSet extends Disposable {
// Whether rules changed. Always true if this._ruleSet is undefined.
public isChanged: Computed<boolean>;
// Whether rules changed, and if they are valid. Never unchanged if this._ruleSet is undefined.
public ruleStatus: Computed<RuleStatus>;
// Whether the rule set includes any conditions besides the default rule.
public haveConditions: Computed<boolean>;
@ -388,7 +426,7 @@ abstract class ObsRuleSet extends Disposable {
private _body = this.autoDispose(obsArray<ObsRulePart>());
// ruleSet is omitted for a new ObsRuleSet added by the user.
constructor(private _tableRules: TableRules|null, private _ruleSet?: RuleSet) {
constructor(public accessRules: AccessRules, private _tableRules: TableRules|null, private _ruleSet?: RuleSet) {
super();
if (this._ruleSet) {
this._body.set(this._ruleSet.body.map(part => ObsRulePart.create(this._body, this, part)));
@ -397,11 +435,12 @@ abstract class ObsRuleSet extends Disposable {
this._body.set([ObsRulePart.create(this._body, this, undefined, true)]);
}
this.isChanged = Computed.create(this, this._body, (use, body) => {
// If anything was changed or added, some part.isChanged will be set. If there were only
// removals, then body.length will have changed.
return (body.length !== (this._ruleSet?.body?.length || 0) ||
body.some(part => use(part.isChanged)));
this.ruleStatus = Computed.create(this, this._body, (use, body) => {
// If anything was changed or added, some part.ruleStatus will be other than Unchanged. If
// there were only removals, then body.length will have changed.
return Math.max(
getChangedStatus(body.length < (this._ruleSet?.body?.length || 0)),
...body.map(part => use(part.ruleStatus)));
});
this.haveConditions = Computed.create(this, this._body, (use, body) => body.some(p => !p.isDefault));
@ -469,11 +508,14 @@ class ColumnObsRuleSet extends ObsRuleSet {
private _colIds = Observable.create<string[]>(this, this._initialColIds);
private _colIdStr = Computed.create(this, (use) => use(this._colIds).join(", "));
constructor(tableRules: TableRules, ruleSet: RuleSet|undefined, private _initialColIds: string[]) {
super(tableRules, ruleSet);
const baseIsChanged = this.isChanged;
this.isChanged = Computed.create(this, (use) =>
!isEqual(use(this._colIds), this._initialColIds) || use(baseIsChanged));
constructor(accessRules: AccessRules, tableRules: TableRules, ruleSet: RuleSet|undefined,
private _initialColIds: string[]) {
super(accessRules, tableRules, ruleSet);
const baseRuleStatus = this.ruleStatus;
this.ruleStatus = Computed.create(this, (use) => Math.max(
getChangedStatus(!isEqual(use(this._colIds), this._initialColIds)),
use(baseRuleStatus)
));
}
public buildDom() {
@ -499,8 +541,9 @@ class ColumnObsRuleSet extends ObsRuleSet {
}
class DefaultObsRuleSet extends ObsRuleSet {
constructor(tableRules: TableRules|null, private _haveColumnRules?: Observable<boolean>, ruleSet?: RuleSet) {
super(tableRules, ruleSet);
constructor(accessRules: AccessRules, tableRules: TableRules|null,
private _haveColumnRules?: Observable<boolean>, ruleSet?: RuleSet) {
super(accessRules, tableRules, ruleSet);
}
public buildDom() {
return cssRuleSet(
@ -515,7 +558,7 @@ class DefaultObsRuleSet extends ObsRuleSet {
}
class ObsUserAttributeRule extends Disposable {
public isChanged: Computed<boolean>;
public ruleStatus: Computed<RuleStatus>;
private _name = Observable.create<string>(this, this._userAttr?.name || '');
private _tableId = Observable.create<string>(this, this._userAttr?.tableId || '');
@ -524,7 +567,8 @@ class ObsUserAttributeRule extends Disposable {
constructor(private _accessRules: AccessRules, private _userAttr?: UserAttributeRule) {
super();
this.isChanged = Computed.create(this, use => (
this.ruleStatus = Computed.create(this, use =>
getChangedStatus(
use(this._name) !== this._userAttr?.name ||
use(this._tableId) !== this._userAttr?.tableId ||
use(this._lookupColId) !== this._userAttr?.lookupColId ||
@ -570,8 +614,8 @@ class ObsUserAttributeRule extends Disposable {
// Represents one line of a RuleSet, a combination of an aclFormula and permissions to apply to
// requests that match it.
class ObsRulePart extends Disposable {
// Whether rules changed. Always true if this._rulePart is undefined.
public isChanged: Computed<boolean>;
// Whether the rule part, and if it's valid or being checked.
public ruleStatus: Computed<RuleStatus>;
// Formula to show in the "advanced" UI.
private _aclFormula = Observable.create<string>(this, this._rulePart?.aclFormula || "");
@ -582,13 +626,23 @@ class ObsRulePart extends Disposable {
private _permissionsText = Computed.create(this, this._permissions, (use, p) => permissionSetToText(p));
// Whether the rule is being checked after a change. Saving will wait for such checks to finish.
private _checkPending = Observable.create(this, false);
// If the formula failed validation, the error message to show. Blank if valid.
private _formulaError = Observable.create(this, '');
// rulePart is omitted for a new ObsRulePart added by the user.
constructor(private _ruleSet: ObsRuleSet, private _rulePart?: RulePart,
public readonly isDefault: boolean = (_rulePart?.aclFormula === '')) {
super();
this.isChanged = Computed.create(this, (use) => {
return (use(this._aclFormula) !== this._rulePart?.aclFormula ||
!isEqual(use(this._permissions), this._rulePart?.permissions));
this.ruleStatus = Computed.create(this, (use) => {
if (use(this._formulaError)) { return RuleStatus.Invalid; }
if (use(this._checkPending)) { return RuleStatus.CheckPending; }
return getChangedStatus(
use(this._aclFormula) !== this._rulePart?.aclFormula ||
!isEqual(use(this._permissions), this._rulePart?.permissions)
);
});
}
@ -612,8 +666,9 @@ class ObsRulePart extends Disposable {
testId('rule-add'),
)
),
cssCondition(
cssConditionInput(
this._aclFormula, async (text) => this._aclFormula.set(text),
this._aclFormula, this._setAclFormula.bind(this),
dom.prop('disabled', this.isBuiltIn()),
dom.prop('placeholder', (use) => {
return (
@ -624,6 +679,8 @@ class ObsRulePart extends Disposable {
}),
testId('rule-acl-formula'),
),
dom.maybe(this._formulaError, (msg) => cssConditionError(msg, testId('rule-error'))),
),
cssPermissionsInput(
this._permissionsText, async (p) => this._permissions.set(parsePermissions(p)),
dom.prop('disabled', this.isBuiltIn()),
@ -647,6 +704,19 @@ class ObsRulePart extends Disposable {
private _isNonFirstBuiltIn(): boolean {
return this.isBuiltIn() && this._ruleSet.getFirstBuiltIn() !== this;
}
private async _setAclFormula(text: string) {
this._aclFormula.set(text);
this._checkPending.set(true);
this._formulaError.set('');
try {
await this._ruleSet.accessRules.checkAclFormula(text);
} catch (e) {
this._formulaError.set(e.message);
} finally {
this._checkPending.set(false);
}
}
}
@ -760,6 +830,10 @@ function removeItem<T>(observableArray: MutableObsArray<T>, item: T): boolean {
return false;
}
function getChangedStatus(value: boolean): RuleStatus {
return value ? RuleStatus.ChangedValid : RuleStatus.Unchanged;
}
const cssAddTableRow = styled('div', `
margin: 16px 64px 0 64px;
display: flex;
@ -815,24 +889,28 @@ const cssRuleSetBody = styled('div', `
const cssRulePart = styled('div', `
display: flex;
align-items: center;
align-items: start;
margin: 4px 0;
&-default {
margin-top: auto;
}
`);
const cssCondition = styled('div', `
min-width: 0;
flex: 1;
display: flex;
flex-direction: column;
`);
const cssConditionInput = styled(textInput, `
display: flex;
min-width: 0;
flex: 1;
&[disabled] {
background-color: ${colors.mediumGreyOpaque};
color: ${colors.dark};
}
`);
const cssConditionError = styled('div', `
color: ${colors.error};
`);
const cssPermissionsInput = styled(cssConditionInput, `
margin-left: 8px;
width: 64px;
@ -843,6 +921,7 @@ const cssIconSpace = styled('div', `
flex: none;
height: 24px;
width: 24px;
margin: 2px;
`);
const cssIconButton = styled(cssIconSpace, `

8
app/common/ACLRuleCollection.ts
View File

@ -49,6 +49,10 @@ const EMERGENCY_RULE_SET: RuleSet = {
};
export class ACLRuleCollection {
// Store error if one occurs while reading rules. Rules are replaced with emergency rules
// in this case.
public ruleError: Error|undefined;
// In the absence of rules, some checks are skipped. For now this is important to maintain all
// existing behavior. TODO should make sure checking access against default rules is equivalent
// and efficient.
@ -72,10 +76,6 @@ export class ACLRuleCollection {
// Maps name to the corresponding UserAttributeRule.
private _userAttributeRules = new Map<string, UserAttributeRule>();
// Store error if one occurs while reading rules. Rules are replaced with emergency rules
// in this case.
public ruleError: Error|undefined;
// Whether there are ANY user-defined rules.
public haveRules(): boolean {
return this._haveRules;

5
app/common/ActiveDocAPI.ts
View File

@ -222,4 +222,9 @@ export interface ActiveDocAPI {
* Prepare a fork of the document, and return the id(s) of the fork.
*/
fork(): Promise<ForkResult>;
/**
* Check if an ACL formula is valid. If not, will throw an error with an explanation.
*/
checkAclFormula(text: string): Promise<void>;
}

19
app/server/lib/ActiveDoc.ts
View File

@ -36,6 +36,7 @@ import {UploadResult} from 'app/common/uploads';
import {DocReplacementOptions, DocState} from 'app/common/UserAPI';
import {ParseOptions} from 'app/plugin/FileParserAPI';
import {GristDocAPI} from 'app/plugin/GristAPI';
import {compileAclFormula} from 'app/server/lib/ACLFormula';
import {Authorizer} from 'app/server/lib/Authorizer';
import {checksumFile} from 'app/server/lib/checksumFile';
import {Client} from 'app/server/lib/Client';
@ -898,6 +899,24 @@ export class ActiveDoc extends EventEmitter {
return makeForkIds({userId, isAnonymous, trunkDocId, trunkUrlId});
}
/**
* Check if an ACL formula is valid. If not, will throw an error with an explanation.
*/
public async checkAclFormula(docSession: DocSession, text: string): Promise<void> {
// Checks can leak names of tables and columns.
if (!await this._granularAccess.canReadEverything(docSession)) { return; }
await this.waitForInitialization();
try {
const parsedAclFormula = await this._pyCall('parse_acl_formula', text);
compileAclFormula(parsedAclFormula);
// TODO We also need to check the validity of attributes, and of tables and columns
// mentioned in resources and userAttribute rules.
} catch (e) {
e.message = e.message?.replace('[Sandbox] ', '');
throw e;
}
}
public getGristDocAPI(): GristDocAPI {
return this.docPluginManager.gristDocAPI;
}

1
app/server/lib/DocWorker.ts
View File

@ -110,6 +110,7 @@ export class DocWorker {
getActionSummaries: activeDocMethod.bind(null, 'viewers', 'getActionSummaries'),
reloadDoc: activeDocMethod.bind(null, 'editors', 'reloadDoc'),
fork: activeDocMethod.bind(null, 'viewers', 'fork'),
checkAclFormula: activeDocMethod.bind(null, 'viewers', 'checkAclFormula'),
});
}

46
app/server/lib/GranularAccess.ts
View File

@ -5,9 +5,11 @@ import { ACLRuleCollection } from 'app/common/ACLRuleCollection';
import { ActionGroup } from 'app/common/ActionGroup';
import { createEmptyActionSummary } from 'app/common/ActionSummary';
import { Query } from 'app/common/ActiveDocAPI';
import { ApiError } from 'app/common/ApiError';
import { AsyncCreate } from 'app/common/AsyncCreate';
import { AddRecord, BulkAddRecord, BulkColValues, BulkRemoveRecord, BulkUpdateRecord, CellValue,
ColValues, DocAction, getTableId, isSchemaAction, RemoveRecord, ReplaceTableData, UpdateRecord } from 'app/common/DocActions';
import { AddRecord, BulkAddRecord, BulkColValues, BulkRemoveRecord, BulkUpdateRecord } from 'app/common/DocActions';
import { RemoveRecord, ReplaceTableData, UpdateRecord } from 'app/common/DocActions';
import { CellValue, ColValues, DocAction, getTableId, isSchemaAction } from 'app/common/DocActions';
import { TableDataAction, UserAction } from 'app/common/DocActions';
import { DocData } from 'app/common/DocData';
import { ErrorWithCode } from 'app/common/ErrorWithCode';
@ -109,7 +111,10 @@ export class GranularAccess {
// Flag tracking whether a set of actions have been applied to the database or not.
private _applied: boolean = false;
public constructor(private _docData: DocData, private _fetchQueryFromDB: (query: Query) => Promise<TableDataAction>, private _recoveryMode: boolean) {
public constructor(
private _docData: DocData,
private _fetchQueryFromDB: (query: Query) => Promise<TableDataAction>,
private _recoveryMode: boolean) {
}
/**
@ -145,12 +150,34 @@ export class GranularAccess {
*/
public async canApplyDocActions(docSession: OptDocSession, docActions: DocAction[], undo: DocAction[]) {
this._applied = false;
if (!this._ruleCollection.haveRules()) { return; }
if (this._ruleCollection.haveRules()) {
this._prepareRowSnapshots(docActions, undo);
await Promise.all(
docActions.map((action, idx) => this._checkIncomingDocAction(docSession, action, idx)));
}
// If the actions change any rules, verify that we'll be able to handle the changed rules. If
// they are to cause an error, reject the action to avoid forcing user into recovery mode.
if (docActions.some(docAction => ['_grist_ACLRules', '_grist_Resources'].includes(getTableId(docAction)))) {
// Create a tmpDocData with just the tables we care about, then update docActions to it.
const tmpDocData: DocData = new DocData(
(tableId) => { throw new Error("Unexpected DocData fetch"); }, {
_grist_ACLResources: this._docData.getTable('_grist_ACLResources')!.getTableDataAction(),
_grist_ACLRules: this._docData.getTable('_grist_ACLRules')!.getTableDataAction(),
});
for (const da of docActions) {
tmpDocData.receiveAction(da);
}
// Use the post-actions data to process the rules collection, and throw error if that fails.
const ruleCollection = new ACLRuleCollection();
await ruleCollection.update(tmpDocData, {log, compile: compileAclFormula});
if (ruleCollection.ruleError && !this._recoveryMode) {
throw new ApiError(ruleCollection.ruleError.message, 400);
}
}
}
/**
* This should be called after each action bundle has been applied to the database,
* but before the actions are broadcast to clients. It will set us up to be able
@ -164,7 +191,8 @@ export class GranularAccess {
this._applied = true;
// If there is a rule change, redo from scratch for now.
// TODO: this is placeholder code. Should deal with connected clients.
if (docActions.some(docAction => getTableId(docAction) === '_grist_ACLRules' || getTableId(docAction) === '_grist_Resources')) {
if (docActions.some(docAction => getTableId(docAction) === '_grist_ACLRules' ||
getTableId(docAction) === '_grist_Resources')) {
await this.update();
return;
}
@ -656,7 +684,8 @@ export class GranularAccess {
}
// Compute which of the row ids supplied are for rows forbidden for this session.
private async _getForbiddenRows(docSession: OptDocSession, data: TableDataAction, ids: Set<number>): Promise<number[]> {
private async _getForbiddenRows(docSession: OptDocSession, data: TableDataAction, ids: Set<number>):
Promise<number[]> {
const rec = new RecordView(data, undefined);
const input: AclMatchInput = {user: await this._getUser(docSession), rec};
@ -795,7 +824,10 @@ export class GranularAccess {
try {
// Use lodash's get() that supports paths, e.g. charId of 'a.b' would look up `user.a.b`.
// TODO: add indexes to db.
rows = await this._fetchQueryFromDB({tableId: clause.tableId, filters: { [clause.lookupColId]: [get(user, clause.charId)] }});
rows = await this._fetchQueryFromDB({
tableId: clause.tableId,
filters: { [clause.lookupColId]: [get(user, clause.charId)] }
});
} catch (e) {
log.warn(`User attribute ${clause.name} failed`, e);
}

2
app/server/lib/Sharing.ts
View File

@ -19,7 +19,7 @@ import {WorkCoordinator} from './WorkCoordinator';
// processing hub actions or rebasing.
interface UserRequest {
action: UserActionBundle;
docSession: OptDocSession|null,
docSession: OptDocSession|null;
resolve(result: UserResult): void;
reject(err: Error): void;
}

2
sandbox/grist/main.py
View File

@ -9,6 +9,7 @@ sys.path.append('thirdparty')
import marshal
import functools
from acl_formula import parse_acl_formula
import actions
import sandbox
import engine
@ -110,6 +111,7 @@ def main():
def get_formula_error(table_id, col_id, row_id):
return objtypes.encode_object(eng.get_formula_error(table_id, col_id, row_id))
export(parse_acl_formula)
export(eng.load_empty)
export(eng.load_done)