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bootstrap: use different scripts to setup different configurations
This patch splits the handling of `isMainThread` and `ownsProcessState` from conditionals in `lib/internal/bootstrap/node.js` into different scripts under `lib/internal/bootstrap/switches/`, and call them accordingly from C++ after `node.js` is run. This: - Creates a common denominator of the main thread and the worker thread bootstrap that can be snapshotted and shared by both. - Makes it possible to override the configurations on-the-fly.
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18 changes: 18 additions & 0 deletions
18
lib/internal/bootstrap/switches/does_not_own_process_state.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| 'use strict'; | ||
|
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| const credentials = internalBinding('credentials'); | ||
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| if (credentials.implementsPosixCredentials) { | ||
| // TODO: this should be detached from ERR_WORKER_UNSUPPORTED_OPERATION | ||
| const { unavailable } = require('internal/process/worker_thread_only'); | ||
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| process.initgroups = unavailable('process.initgroups()'); | ||
| process.setgroups = unavailable('process.setgroups()'); | ||
| process.setegid = unavailable('process.setegid()'); | ||
| process.seteuid = unavailable('process.seteuid()'); | ||
| process.setgid = unavailable('process.setgid()'); | ||
| process.setuid = unavailable('process.setuid()'); | ||
| } | ||
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| // ---- keep the attachment of the wrappers above so that it's easier to ---- | ||
| // ---- compare the setups side-by-side ----- |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| 'use strict'; | ||
|
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| const credentials = internalBinding('credentials'); | ||
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| if (credentials.implementsPosixCredentials) { | ||
| const wrapped = wrapPosixCredentialSetters(credentials); | ||
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| process.initgroups = wrapped.initgroups; | ||
| process.setgroups = wrapped.setgroups; | ||
| process.setegid = wrapped.setegid; | ||
| process.seteuid = wrapped.seteuid; | ||
| process.setgid = wrapped.setgid; | ||
| process.setuid = wrapped.setuid; | ||
| } | ||
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| // ---- keep the attachment of the wrappers above so that it's easier to ---- | ||
| // ---- compare the setups side-by-side ----- | ||
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| function wrapPosixCredentialSetters(credentials) { | ||
| const { | ||
| ArrayIsArray, | ||
| } = primordials; | ||
| const { | ||
| codes: { | ||
| ERR_INVALID_ARG_TYPE, | ||
| ERR_UNKNOWN_CREDENTIAL | ||
| } | ||
| } = require('internal/errors'); | ||
| const { | ||
| validateUint32 | ||
| } = require('internal/validators'); | ||
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| const { | ||
| initgroups: _initgroups, | ||
| setgroups: _setgroups, | ||
| setegid: _setegid, | ||
| seteuid: _seteuid, | ||
| setgid: _setgid, | ||
| setuid: _setuid | ||
| } = credentials; | ||
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| function initgroups(user, extraGroup) { | ||
| validateId(user, 'user'); | ||
| validateId(extraGroup, 'extraGroup'); | ||
| // Result is 0 on success, 1 if user is unknown, 2 if group is unknown. | ||
| const result = _initgroups(user, extraGroup); | ||
| if (result === 1) { | ||
| throw new ERR_UNKNOWN_CREDENTIAL('User', user); | ||
| } else if (result === 2) { | ||
| throw new ERR_UNKNOWN_CREDENTIAL('Group', extraGroup); | ||
| } | ||
| } | ||
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| function setgroups(groups) { | ||
| if (!ArrayIsArray(groups)) { | ||
| throw new ERR_INVALID_ARG_TYPE('groups', 'Array', groups); | ||
| } | ||
| for (let i = 0; i < groups.length; i++) { | ||
| validateId(groups[i], `groups[${i}]`); | ||
| } | ||
| // Result is 0 on success. A positive integer indicates that the | ||
| // corresponding group was not found. | ||
| const result = _setgroups(groups); | ||
| if (result > 0) { | ||
| throw new ERR_UNKNOWN_CREDENTIAL('Group', groups[result - 1]); | ||
| } | ||
| } | ||
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| function wrapIdSetter(type, method) { | ||
| return function(id) { | ||
| validateId(id, 'id'); | ||
| // Result is 0 on success, 1 if credential is unknown. | ||
| const result = method(id); | ||
| if (result === 1) { | ||
| throw new ERR_UNKNOWN_CREDENTIAL(type, id); | ||
| } | ||
| }; | ||
| } | ||
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| function validateId(id, name) { | ||
| if (typeof id === 'number') { | ||
| validateUint32(id, name); | ||
| } else if (typeof id !== 'string') { | ||
| throw new ERR_INVALID_ARG_TYPE(name, ['number', 'string'], id); | ||
| } | ||
| } | ||
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| return { | ||
| initgroups, | ||
| setgroups, | ||
| setegid: wrapIdSetter('Group', _setegid), | ||
| seteuid: wrapIdSetter('User', _seteuid), | ||
| setgid: wrapIdSetter('Group', _setgid), | ||
| setuid: wrapIdSetter('User', _setuid) | ||
| }; | ||
| } |
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