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Apache License
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http://www.apache.org/licenses/
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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Copyright (C) 2013-present SheetJS LLC
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+161
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|
||||
# Container File Blobs
|
||||
|
||||
Pure JS implementation of various container file formats, including ZIP and CFB.
|
||||
|
||||
[](https://travis-ci.org/SheetJS/js-cfb)
|
||||
[](https://coveralls.io/r/SheetJS/js-cfb?branch=master)
|
||||
[](https://david-dm.org/sheetjs/js-cfb)
|
||||
[](https://npmjs.org/package/cfb)
|
||||
[](https://github.com/SheetJS/js-cfb)
|
||||
|
||||
## Installation
|
||||
|
||||
In the browser:
|
||||
|
||||
```html
|
||||
<script src="dist/cfb.min.js" type="text/javascript"></script>
|
||||
```
|
||||
|
||||
With [npm](https://www.npmjs.org/package/cfb):
|
||||
|
||||
```bash
|
||||
$ npm install cfb
|
||||
```
|
||||
|
||||
The `xlscfb.js` file is designed to be embedded in [js-xlsx](http://git.io/xlsx)
|
||||
|
||||
|
||||
## Library Usage
|
||||
|
||||
In node:
|
||||
|
||||
```js
|
||||
var CFB = require('cfb');
|
||||
```
|
||||
|
||||
For example, to get the Workbook content from an Excel 2003 XLS file:
|
||||
|
||||
```js
|
||||
var cfb = CFB.read(filename, {type: 'file'});
|
||||
var workbook = CFB.find(cfb, 'Workbook');
|
||||
var data = workbook.content;
|
||||
```
|
||||
|
||||
|
||||
## Command-Line Utility Usage
|
||||
|
||||
The [`cfb-cli`](https://www.npmjs.com/package/cfb-cli) module ships with a CLI
|
||||
tool for manipulating and inspecting supported files.
|
||||
|
||||
|
||||
## JS API
|
||||
|
||||
TypeScript definitions are maintained in `types/index.d.ts`.
|
||||
|
||||
The CFB object exposes the following methods and properties:
|
||||
|
||||
`CFB.parse(blob)` takes a nodejs Buffer or an array of bytes and returns an
|
||||
parsed representation of the data.
|
||||
|
||||
`CFB.read(blob, opts)` wraps `parse`.
|
||||
|
||||
`CFB.find(cfb, path)` performs a case-insensitive match for the path (or file
|
||||
name, if there are no slashes) and returns an entry object or null if not found.
|
||||
|
||||
`CFB.write(cfb, opts)` generates a file based on the container.
|
||||
|
||||
`CFB.writeFile(cfb, filename, opts)` creates a file with the specified name.
|
||||
|
||||
### Parse Options
|
||||
|
||||
`CFB.read` takes an options argument. `opts.type` controls the behavior:
|
||||
|
||||
| `type` | expected input |
|
||||
|------------|:----------------------------------------------------------------|
|
||||
| `"base64"` | string: Base64 encoding of the file |
|
||||
| `"binary"` | string: binary string (byte `n` is `data.charCodeAt(n)`) |
|
||||
| `"buffer"` | nodejs Buffer |
|
||||
| `"file"` | string: path of file that will be read (nodejs only) |
|
||||
| (default) | buffer or array of 8-bit unsigned int (byte `n` is `data[n]`) |
|
||||
|
||||
|
||||
### Write Options
|
||||
|
||||
`CFB.write` and `CFB.writeFile` take options argument.
|
||||
|
||||
`opts.type` controls the behavior:
|
||||
|
||||
| `type` | output |
|
||||
|------------|:----------------------------------------------------------------|
|
||||
| `"base64"` | string: Base64 encoding of the file |
|
||||
| `"binary"` | string: binary string (byte `n` is `data.charCodeAt(n)`) |
|
||||
| `"buffer"` | nodejs Buffer |
|
||||
| `"file"` | string: path of file that will be created (nodejs only) |
|
||||
| (default) | buffer if available, array of 8-bit unsigned int otherwise |
|
||||
|
||||
`opts.fileType` controls the output file type:
|
||||
|
||||
| `fileType` | output |
|
||||
|:-------------------|:------------------------|
|
||||
| `'cfb'` (default) | CFB container |
|
||||
| `'zip'` | ZIP file |
|
||||
| `'mad'` | MIME aggregate document |
|
||||
|
||||
`opts.compression` enables DEFLATE compression for ZIP file type.
|
||||
|
||||
|
||||
## Utility Functions
|
||||
|
||||
The utility functions are available in the `CFB.utils` object. Functions that
|
||||
accept a `name` argument strictly deal with absolute file names:
|
||||
|
||||
- `.cfb_new(?opts)` creates a new container object.
|
||||
- `.cfb_add(cfb, name, ?content, ?opts)` adds a new file to the `cfb`.
|
||||
Set the option `{unsafe:true}` to skip existence checks (for bulk additions)
|
||||
- `.cfb_del(cfb, name)` deletes the specified file
|
||||
- `.cfb_mov(cfb, old_name, new_name)` moves the old file to new path and name
|
||||
- `.use_zlib(require("zlib"))` loads a nodejs `zlib` instance.
|
||||
|
||||
By default, the library uses a pure JS inflate/deflate implementation. NodeJS
|
||||
`zlib.InflateRaw` exposes the number of bytes read in versions after `8.11.0`.
|
||||
If a supplied `zlib` does not support the required features, a warning will be
|
||||
displayed in the console and the pure JS fallback will be used.
|
||||
|
||||
|
||||
## Container Object Description
|
||||
|
||||
The objects returned by `parse` and `read` have the following properties:
|
||||
|
||||
- `.FullPaths` is an array of the names of all of the streams (files) and
|
||||
storages (directories) in the container. The paths are properly prefixed from
|
||||
the root entry (so the entries are unique)
|
||||
|
||||
- `.FileIndex` is an array, in the same order as `.FullPaths`, whose values are
|
||||
objects following the schema:
|
||||
|
||||
```typescript
|
||||
interface CFBEntry {
|
||||
name: string; /** Case-sensitive internal name */
|
||||
type: number; /** 1 = dir, 2 = file, 5 = root ; see [MS-CFB] 2.6.1 */
|
||||
content: Buffer | number[] | Uint8Array; /** Raw Content */
|
||||
ct?: Date; /** Creation Time */
|
||||
mt?: Date; /** Modification Time */
|
||||
ctype?: String; /** Content-Type (for MAD) */
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
## License
|
||||
|
||||
Please consult the attached LICENSE file for details. All rights not explicitly
|
||||
granted by the Apache 2.0 License are reserved by the Original Author.
|
||||
|
||||
|
||||
## References
|
||||
|
||||
- `MS-CFB`: Compound File Binary File Format
|
||||
- ZIP `APPNOTE.TXT`: .ZIP File Format Specification
|
||||
- RFC1951: https://www.ietf.org/rfc/rfc1951.txt
|
||||
- RFC2045: https://www.ietf.org/rfc/rfc2045.txt
|
||||
- RFC2557: https://www.ietf.org/rfc/rfc2557.txt
|
||||
|
||||
+1979
File diff suppressed because it is too large.
Load diff
+201
@@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
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||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
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"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
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outstanding shares, or (iii) beneficial ownership of such entity.
|
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|
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"You" (or "Your") shall mean an individual or Legal Entity
|
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exercising permissions granted by this License.
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|
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"Source" form shall mean the preferred form for making modifications,
|
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including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
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|
||||
"Object" form shall mean any form resulting from mechanical
|
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transformation or translation of a Source form, including but
|
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not limited to compiled object code, generated documentation,
|
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and conversions to other media types.
|
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|
||||
"Work" shall mean the work of authorship, whether in Source or
|
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Object form, made available under the License, as indicated by a
|
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copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
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form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
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of this License, Derivative Works shall not include works that remain
|
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separable from, or merely link (or bind by name) to the interfaces of,
|
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the Work and Derivative Works thereof.
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|
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"Contribution" shall mean any work of authorship, including
|
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the original version of the Work and any modifications or additions
|
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to that Work or Derivative Works thereof, that is intentionally
|
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submitted to Licensor for inclusion in the Work by the copyright owner
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or by an individual or Legal Entity authorized to submit on behalf of
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the copyright owner. For the purposes of this definition, "submitted"
|
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means any form of electronic, verbal, or written communication sent
|
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to the Licensor or its representatives, including but not limited to
|
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communication on electronic mailing lists, source code control systems,
|
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and issue tracking systems that are managed by, or on behalf of, the
|
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Licensor for the purpose of discussing and improving the Work, but
|
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excluding communication that is conspicuously marked or otherwise
|
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designated in writing by the copyright owner as "Not a Contribution."
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|
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"Contributor" shall mean Licensor and any individual or Legal Entity
|
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on behalf of whom a Contribution has been received by Licensor and
|
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subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
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publicly display, publicly perform, sublicense, and distribute the
|
||||
Work and such Derivative Works in Source or Object form.
|
||||
|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
(except as stated in this section) patent license to make, have made,
|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
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Load diff
+3
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||||
/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
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+1
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||||
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File diff suppressed because it is too large.
Load diff
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{
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||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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|
||||
"crc-32": "~1.2.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@sheetjs/uglify-js": "~2.7.3",
|
||||
"@types/node": "^8.10.25",
|
||||
"acorn": "7.4.1",
|
||||
"alex": "8.1.1",
|
||||
"blanket": "~1.2.3",
|
||||
"dtslint": "~0.1.2",
|
||||
"eslint": "7.23.0",
|
||||
"eslint-plugin-html": "^6.1.2",
|
||||
"eslint-plugin-json": "^2.1.2",
|
||||
"jscs": "3.0.7",
|
||||
"jshint": "2.13.4",
|
||||
"mocha": "~2.5.3",
|
||||
"typescript": "2.2.0"
|
||||
},
|
||||
"repository": {
|
||||
"type": "git",
|
||||
"url": "git://github.com/SheetJS/js-cfb.git"
|
||||
},
|
||||
"scripts": {
|
||||
"pretest": "make init",
|
||||
"test": "make test",
|
||||
"dtslint": "dtslint types"
|
||||
},
|
||||
"config": {
|
||||
"blanket": {
|
||||
"pattern": "cfb.js"
|
||||
}
|
||||
},
|
||||
"files": [
|
||||
"LICENSE",
|
||||
"README.md",
|
||||
"dist/",
|
||||
"types/index.d.ts",
|
||||
"types/tsconfig.json",
|
||||
"cfb.js",
|
||||
"xlscfb.flow.js"
|
||||
],
|
||||
"homepage": "http://sheetjs.com/",
|
||||
"bugs": {
|
||||
"url": "https://github.com/SheetJS/js-cfb/issues"
|
||||
},
|
||||
"license": "Apache-2.0",
|
||||
"engines": {
|
||||
"node": ">=0.8"
|
||||
}
|
||||
}
|
||||
+128
@@ -0,0 +1,128 @@
|
||||
/* index.d.ts (C) 2013-present SheetJS */
|
||||
// TypeScript Version: 2.2
|
||||
|
||||
/** Version string */
|
||||
export const version: string;
|
||||
|
||||
/** Parse a buffer or array */
|
||||
export function parse(f: CFB$Blob, options?: CFB$ParsingOptions): CFB$Container;
|
||||
|
||||
/** Read a blob or file or binary string */
|
||||
export function read(f: CFB$Blob | string, options?: CFB$ParsingOptions): CFB$Container;
|
||||
|
||||
/** Find a file entry given a path or file name */
|
||||
export function find(cfb: CFB$Container, path: string): CFB$Entry | null;
|
||||
|
||||
/** Generate a container file */
|
||||
export function write(cfb: CFB$Container, options?: CFB$WritingOptions): any;
|
||||
|
||||
/** Write a container file to the filesystem */
|
||||
export function writeFile(cfb: CFB$Container, filename: string, options?: CFB$WritingOptions): any;
|
||||
|
||||
/** Utility functions */
|
||||
export const utils: CFB$Utils;
|
||||
|
||||
export interface CFB$CommonOptions {
|
||||
/** Data encoding */
|
||||
type?: 'base64' | 'binary' | 'buffer' | 'file' | 'array';
|
||||
|
||||
/** If true, throw errors when features are not understood */
|
||||
WTF?: boolean;
|
||||
}
|
||||
|
||||
/** Options for read and readFile */
|
||||
export interface CFB$ParsingOptions extends CFB$CommonOptions {
|
||||
/** If true, include raw data in output */
|
||||
raw?: boolean;
|
||||
}
|
||||
|
||||
/** Options for write and writeFile */
|
||||
export interface CFB$WritingOptions extends CFB$CommonOptions {
|
||||
/** Output file type */
|
||||
fileType?: 'cfb' | 'zip' | 'mad';
|
||||
|
||||
/** Override default root entry name (CFB only) */
|
||||
root?: string;
|
||||
|
||||
/** Enable compression (ZIP only) */
|
||||
compression?: boolean;
|
||||
}
|
||||
|
||||
export type CFB$Blob = number[] | Uint8Array;
|
||||
|
||||
export enum CFB$EntryType { unknown, storage, stream, lockbytes, property, root }
|
||||
export enum CFB$StorageType { fat, minifat }
|
||||
|
||||
/** CFB File Entry Object */
|
||||
export interface CFB$Entry {
|
||||
/** Case-sensitive internal name */
|
||||
name: string;
|
||||
|
||||
/** CFB type (salient types: stream, storage) -- see CFB$EntryType */
|
||||
type: number;
|
||||
|
||||
/** Raw Content (Buffer when available, Array of bytes otherwise) */
|
||||
content: CFB$Blob;
|
||||
|
||||
/** Creation Time */
|
||||
ct?: Date;
|
||||
|
||||
/** Modification Time */
|
||||
mt?: Date;
|
||||
|
||||
/** Red/Black Tree color: 0 = red, 1 = black */
|
||||
color: number;
|
||||
|
||||
/** Class ID represented as hex string */
|
||||
clsid: string;
|
||||
|
||||
/** User-Defined State Bits */
|
||||
state: number;
|
||||
|
||||
/** Starting Sector */
|
||||
start: number;
|
||||
|
||||
/** Data Size */
|
||||
size: number;
|
||||
|
||||
/** Storage location -- see CFB$StorageType */
|
||||
storage?: string;
|
||||
|
||||
/** Content Type (used for MAD) */
|
||||
ctype?: string;
|
||||
}
|
||||
|
||||
/* File object */
|
||||
export interface CFB$Container {
|
||||
/* List of streams and storages */
|
||||
FullPaths: string[];
|
||||
|
||||
/* Array of entries in the same order as FullPaths */
|
||||
FileIndex: CFB$Entry[];
|
||||
|
||||
/* Raw Content, in chunks (Buffer when available, Array of bytes otherwise) */
|
||||
raw?: {
|
||||
header: CFB$Blob,
|
||||
sectors: CFB$Blob[];
|
||||
};
|
||||
}
|
||||
|
||||
/** cfb_add options */
|
||||
export interface CFB$AddOpts {
|
||||
/** Skip existence and safety checks (best for bulk write operations) */
|
||||
unsafe?: boolean;
|
||||
}
|
||||
|
||||
/** General utilities */
|
||||
export interface CFB$Utils {
|
||||
cfb_new(opts?: any): CFB$Container;
|
||||
cfb_add(cfb: CFB$Container, name: string, content: any, opts?: CFB$AddOpts): CFB$Entry;
|
||||
cfb_del(cfb: CFB$Container, name: string): boolean;
|
||||
cfb_mov(cfb: CFB$Container, old_name: string, new_name: string): boolean;
|
||||
cfb_gc(cfb: CFB$Container): void;
|
||||
ReadShift(size: number, t?: string): number|string;
|
||||
WarnField(hexstr: string, fld?: string): void;
|
||||
CheckField(hexstr: string, fld?: string): void;
|
||||
prep_blob(blob: any, pos?: number): CFB$Blob;
|
||||
bconcat(bufs: any[]): any;
|
||||
}
|
||||
+15
@@ -0,0 +1,15 @@
|
||||
{
|
||||
"compilerOptions": {
|
||||
"module": "commonjs",
|
||||
"lib": [ "es5" ],
|
||||
"noImplicitAny": true,
|
||||
"noImplicitThis": true,
|
||||
"strictNullChecks": false,
|
||||
"baseUrl": ".",
|
||||
"paths": { "cfb": ["."] },
|
||||
"types": [],
|
||||
"noEmit": true,
|
||||
"strictFunctionTypes": true,
|
||||
"forceConsistentCasingInFileNames": true
|
||||
}
|
||||
}
|
||||
+1856
File diff suppressed because it is too large.
Load diff
Reference in new issue
Block a user