Add docs.

This commit is contained in:
Marcel Klehr 2012-08-03 22:04:06 +02:00
parent aa986ab954
commit 5fac05a395
6 changed files with 768 additions and 0 deletions

View File

@ -0,0 +1,141 @@
# Changeset Library
```
"Z:z>1|2=m=b*0|1+1$\n"
```
This is a Changeset. Its just a string and its very difficult to read in this form. But the Changeset Library gives us some tools to read it.
A changeset describes the diff between two revisions of the document. The Browser sends changesets to the server and the server sends them to the clients to update them. This Changesets gets also saved into the history of a pad. Which allows us to go back to every revision from the past.
## Changeset.unpack(changeset)
* `changeset` {String}
This functions returns an object representaion of the changeset, similar to this:
```
{ oldLen: 35, newLen: 36, ops: '|2=m=b*0|1+1', charBank: '\n' }
```
* `oldLen` {Number} the original length of the document.
* `newLen` {Number} the length of the document after the changeset is applied.
* `ops` {String} the actual changes, introduced by this changeset.
* `charBank` {String} All characters that are added by this changeset.
## Changeset.opIterator(ops)
* `ops` {String} The operators, returned by `Changeset.unpack()`
Returns an operator iterator. This iterator allows us to iterate over all operators that are in the changeset.
You can iterate with an opIterator using its `next()` and `hasNext()` methods. Next returns the `next()` operator object and `hasNext()` indicates, whether there are any operators left.
## The Operator object
There are 3 types of operators: `+`,`-` and `=`. These operators describe different changes to the document, beginning with the first character of the document. A `=` operator doesn't change the text, but it may add or remove text attributes. A `-` operator removes text. And a `+` Operator adds text and optionally adds some attributes to it.
* `opcode` {String} the operator type
* `chars` {Number} the length of the text changed by this operator.
* `lines` {Number} the number of lines changed by this operator.
* `attribs` {attribs} attributes set on this text.
### Example
```
{ opcode: '+',
chars: 1,
lines: 1,
attribs: '*0' }
```
## APool
<pre>
> var AttributePoolFactory = require("./utils/AttributePoolFactory");
> var apool = AttributePoolFactory.createAttributePool();
> console.log(apool)
{ numToAttrib: {},
attribToNum: {},
nextNum: 0,
putAttrib: [Function],
getAttrib: [Function],
getAttribKey: [Function],
getAttribValue: [Function],
eachAttrib: [Function],
toJsonable: [Function],
fromJsonable: [Function] }
</pre>
This creates an empty apool. A apool saves which attributes were used during the history of a pad. There is one apool for each pad. It only saves the attributes that were really used, it doesn't save unused attributes. Lets fill this apool with some values
<pre>
> apool.fromJsonable({"numToAttrib":{"0":["author","a.kVnWeomPADAT2pn9"],"1":["bold","true"],"2":["italic","true"]},"nextNum":3});
> console.log(apool)
{ numToAttrib:
{ '0': [ 'author', 'a.kVnWeomPADAT2pn9' ],
'1': [ 'bold', 'true' ],
'2': [ 'italic', 'true' ] },
attribToNum:
{ 'author,a.kVnWeomPADAT2pn9': 0,
'bold,true': 1,
'italic,true': 2 },
nextNum: 3,
putAttrib: [Function],
getAttrib: [Function],
getAttribKey: [Function],
getAttribValue: [Function],
eachAttrib: [Function],
toJsonable: [Function],
fromJsonable: [Function] }
</pre>
We used the fromJsonable function to fill the empty apool with values. the fromJsonable and toJsonable functions are used to serialize and deserialize an apool. You can see that it stores the relation between numbers and attributes. So for example the attribute 1 is the attribute bold and vise versa. A attribute is always a key value pair. For stuff like bold and italic its just 'italic':'true'. For authors its author:$AUTHORID. So a character can be bold and italic. But it can't belong to multiple authors
<pre>
> apool.getAttrib(1)
[ 'bold', 'true' ]
</pre>
Simple example of how to get the key value pair for the attribute 1
## AText
<pre>
> var atext = {"text":"bold text\nitalic text\nnormal text\n\n","attribs":"*0*1+9*0|1+1*0*1*2+b|1+1*0+b|2+2"};
> console.log(atext)
{ text: 'bold text\nitalic text\nnormal text\n\n',
attribs: '*0*1+9*0|1+1*0*1*2+b|1+1*0+b|2+2' }
</pre>
This is an atext. An atext has two parts: text and attribs. The text is just the text of the pad as a string. We will look closer at the attribs at the next steps
<pre>
> var opiterator = Changeset.opIterator(atext.attribs)
> console.log(opiterator)
{ next: [Function: next],
hasNext: [Function: hasNext],
lastIndex: [Function: lastIndex] }
> opiterator.next()
{ opcode: '+',
chars: 9,
lines: 0,
attribs: '*0*1' }
> opiterator.next()
{ opcode: '+',
chars: 1,
lines: 1,
attribs: '*0' }
> opiterator.next()
{ opcode: '+',
chars: 11,
lines: 0,
attribs: '*0*1*2' }
> opiterator.next()
{ opcode: '+',
chars: 1,
lines: 1,
attribs: '' }
> opiterator.next()
{ opcode: '+',
chars: 11,
lines: 0,
attribs: '*0' }
> opiterator.next()
{ opcode: '+',
chars: 2,
lines: 2,
attribs: '' }
</pre>
The attribs are again a bunch of operators like .ops in the changeset was. But these operators are only + operators. They describe which part of the text has which attributes
For more information see /doc/easysync/easysync-notes.txt in the source.

47
doc/api/editorInfo.md Normal file
View File

@ -0,0 +1,47 @@
## editorInfo
### editorInfo.ace_replaceRange(start, end, text)
This function replaces a range (from `start` to `end`) with `text`.
### editorInfo.ace_getRep()
Returns the `rep` object.
### editorInfo.ace_getAuthor()
### editorInfo.ace_inCallStack()
### editorInfo.ace_inCallStackIfNecessary(?)
### editorInfo.ace_focus(?)
### editorInfo.ace_importText(?)
### editorInfo.ace_importAText(?)
### editorInfo.ace_exportText(?)
### editorInfo.ace_editorChangedSize(?)
### editorInfo.ace_setOnKeyPress(?)
### editorInfo.ace_setOnKeyDown(?)
### editorInfo.ace_setNotifyDirty(?)
### editorInfo.ace_dispose(?)
### editorInfo.ace_getFormattedCode(?)
### editorInfo.ace_setEditable(bool)
### editorInfo.ace_execCommand(?)
### editorInfo.ace_callWithAce(fn, callStack, normalize)
### editorInfo.ace_setProperty(key, value)
### editorInfo.ace_setBaseText(txt)
### editorInfo.ace_setBaseAttributedText(atxt, apoolJsonObj)
### editorInfo.ace_applyChangesToBase(c, optAuthor, apoolJsonObj)
### editorInfo.ace_prepareUserChangeset()
### editorInfo.ace_applyPreparedChangesetToBase()
### editorInfo.ace_setUserChangeNotificationCallback(f)
### editorInfo.ace_setAuthorInfo(author, info)
### editorInfo.ace_setAuthorSelectionRange(author, start, end)
### editorInfo.ace_getUnhandledErrors()
### editorInfo.ace_getDebugProperty(prop)
### editorInfo.ace_fastIncorp(?)
### editorInfo.ace_isCaret(?)
### editorInfo.ace_getLineAndCharForPoint(?)
### editorInfo.ace_performDocumentApplyAttributesToCharRange(?)
### editorInfo.ace_setAttributeOnSelection(?)
### editorInfo.ace_toggleAttributeOnSelection(?)
### editorInfo.ace_performSelectionChange(?)
### editorInfo.ace_doIndentOutdent(?)
### editorInfo.ace_doUndoRedo(?)
### editorInfo.ace_doInsertUnorderedList(?)
### editorInfo.ace_doInsertOrderedList(?)
### editorInfo.ace_performDocumentApplyAttributesToRange()

View File

@ -0,0 +1,49 @@
# Embed parameters
You can easily embed your etherpad-lite into any webpage by using iframes. You can configure the embedded pad using embed paramters.
## Parameters
### showLineNumbers
* Boolean
Default: true
### showControls
* Boolean
Default: true
### showChat
* Boolean
Default: true
### useMonospaceFont
* Boolean
Default: false
### userName
* String
Default: "unnamed"
Example: `userName=Etherpad%20User`
### noColors
* Boolean
Default: false
### alwaysShowChat
* Boolean
Default: false
## Example
```
<iframe src='http://pad.test.de/p/PAD_NAME?showChat=false&showLineNumbers=false' width=600 height=400></iframe>
```
Cut and paste this into any webpage (between the body tags) to embed a pad. The above parameters will hide the chat and the line numbers.

View File

@ -0,0 +1,160 @@
# Client-side hooks
Most of these hooks are called during or in order to set up the formatting process.
## aceDomLineProcessLineAttributes
Called from: src/static/js/domline.js
Things in context:
1. domline - The current DOM line being processed
2. cls - The class of the current block element (useful for styling)
This hook is called for elements in the DOM that have the "lineMarkerAttribute" set. You can add elements into this category with the aceRegisterBlockElements hook above.
The return value of this hook should have the following structure:
`{ preHtml: String, postHtml: String, processedMarker: Boolean }`
The preHtml and postHtml values will be added to the HTML display of the element, and if processedMarker is true, the engine won't try to process it any more.
## aceCreateDomLine
Called from: src/static/js/domline.js
Things in context:
1. domline - the current DOM line being processed
2. cls - The class of the current element (useful for styling)
This hook is called for any line being processed by the formatting engine, unless the aceDomLineProcessLineAttributes hook from above returned true, in which case this hook is skipped.
The return value of this hook should have the following structure:
`{ extraOpenTags: String, extraCloseTags: String, cls: String }`
extraOpenTags and extraCloseTags will be added before and after the element in question, and cls will be the new class of the element going forward.
## acePostWriteDomLineHTML
Called from: src/static/js/domline.js
Things in context:
1. node - the DOM node that just got written to the page
This hook is for right after a node has been fully formatted and written to the page.
## aceAttribsToClasses
Called from: src/static/js/linestylefilter.js
Things in context:
1. linestylefilter - the JavaScript object that's currently processing the ace attributes
2. key - the current attribute being processed
3. value - the value of the attribute being processed
This hook is called during the attribute processing procedure, and should be used to translate key, value pairs into valid HTML classes that can be inserted into the DOM.
The return value for this function should be a list of classes, which will then be parsed into a valid class string.
## aceGetFilterStack
Called from: src/static/js/linestylefilter.js
Things in context:
1. linestylefilter - the JavaScript object that's currently processing the ace attributes
2. browser - an object indicating which browser is accessing the page
This hook is called to apply custom regular expression filters to a set of styles. The one example available is the ep_linkify plugin, which adds internal links. They use it to find the telltale `[[ ]]` syntax that signifies internal links, and finding that syntax, they add in the internalHref attribute to be later used by the aceCreateDomLine hook (documented above).
## aceEditorCSS
Called from: src/static/js/ace.js
Things in context: None
This hook is provided to allow custom CSS files to be loaded. The return value should be an array of paths relative to the plugins directory.
## aceInitInnerdocbodyHead
Called from: src/static/js/ace.js
Things in context:
1. iframeHTML - the HTML of the editor iframe up to this point, in array format
This hook is called during the creation of the editor HTML. The array should have lines of HTML added to it, giving the plugin author a chance to add in meta, script, link, and other tags that go into the `<head>` element of the editor HTML document.
## aceEditEvent
Called from: src/static/js/ace2_inner.js
Things in context:
1. callstack - a bunch of information about the current action
2. editorInfo - information about the user who is making the change
3. rep - information about where the change is being made
4. documentAttributeManager - information about attributes in the document (this is a mystery to me)
This hook is made available to edit the edit events that might occur when changes are made. Currently you can change the editor information, some of the meanings of the edit, and so on. You can also make internal changes (internal to your plugin) that use the information provided by the edit event.
## aceRegisterBlockElements
Called from: src/static/js/ace2_inner.js
Things in context: None
The return value of this hook will add elements into the "lineMarkerAttribute" category, making the aceDomLineProcessLineAttributes hook (documented below) call for those elements.
## aceInitialized
Called from: src/static/js/ace2_inner.js
Things in context:
1. editorInfo - information about the user who will be making changes through the interface, and a way to insert functions into the main ace object (see ep_headings)
2. rep - information about where the user's cursor is
3. documentAttributeManager - some kind of magic
This hook is for inserting further information into the ace engine, for later use in formatting hooks.
## postAceInit
Called from: src/static/js/pad.js
Things in context:
1. ace - the ace object that is applied to this editor.
There doesn't appear to be any example available of this particular hook being used, but it gets fired after the editor is all set up.
# Other client hooks
These hooks are for other parts of the software on the client side, that is, when the editor is being used.
## userJoinOrUpdate
Called from: src/static/js/pad_userlist.js
Things in context:
1. info - the user information
This hook is called on the client side whenever a user joins or changes. This can be used to create notifications or an alternate user list.
## collectContentPre
Called from: src/static/js/contentcollector.js
Things in context:
1. cc - the contentcollector object
2. state - the current state of the change being made
3. tname - the tag name of this node currently being processed
4. style - the style applied to the node (probably CSS)
5. cls - the HTML class string of the node
This hook is called before the content of a node is collected by the usual methods. The cc object can be used to do a bunch of things that modify the content of the pad. See, for example, the heading1 plugin for etherpad original.
## collectContentPost
Called from: src/static/js/contentcollector.js
Things in context:
1. cc - the contentcollector object
2. state - the current state of the change being made
3. tname - the tag name of this node currently being processed
4. style - the style applied to the node (probably CSS)
5. cls - the HTML class string of the node
This hook is called after the content of a node is collected by the usual methods. The cc object can be used to do a bunch of things that modify the content of the pad. See, for example, the heading1 plugin for etherpad original.

View File

@ -0,0 +1,134 @@
All hooks registered to these events are called with two arguments:
1. name - the name of the hook being called
2. context - an object with some relevant information about the context of the call
# Server-side hooks
These hooks are called on server-side.
## pluginUninstall
Called from: src/static/js/pluginfw/installer.js
Things in context:
1. plugin_name - self-explanatory
If this hook returns an error, the callback to the uninstall function gets an error as well. This mostly seems useful for handling additional features added in based on the installation of other plugins, which is pretty cool!
## pluginInstall
Called from: src/static/js/pluginfw/installer.js
Things in context:
1. plugin_name - self-explanatory
If this hook returns an error, the callback to the install function gets an error, too. This seems useful for adding in features when a particular plugin is installed.
## init_`<plugin name>`
Called from: src/static/js/pluginfw/plugins.js
Things in context: None
This function is called after a specific plugin is initialized. This would probably be more useful than the previous two functions if you only wanted to add in features to one specific plugin.
## expressConfigure
Called from: src/node/server.js
Things in context:
1. app - the main application object
This is a helpful hook for changing the behavior and configuration of the application. It's called right after the application gets configured.
## expressCreateServer
Called from: src/node/server.js
Things in context:
1. app - the main application object (helpful for adding new paths and such)
This hook gets called after the application object has been created, but before it starts listening. This is similar to the expressConfigure hook, but it's not guaranteed that the application object will have all relevant configuration variables.
## eejsBlock_`<name>`
Called from: src/node/eejs/index.js
Things in context:
1. content - the content of the block
This hook gets called upon the rendering of an ejs template block. For any specific kind of block, you can change how that block gets rendered by modifying the content object passed in.
Have a look at `src/templates/pad.html` and `src/templates/timeslider.html` to see which blocks are available.
## socketio
Called from: src/node/hooks/express/socketio.js
Things in context:
1. app - the application object
2. io - the socketio object
I have no idea what this is useful for, someone else will have to add this description.
## authorize
Called from: src/node/hooks/express/webaccess.js
Things in context:
1. req - the request object
2. res - the response object
3. next - ?
4. resource - the path being accessed
This is useful for modifying the way authentication is done, especially for specific paths.
## authenticate
Called from: src/node/hooks/express/webaccess.js
Things in context:
1. req - the request object
2. res - the response object
3. next - ?
4. username - the username used (optional)
5. password - the password used (optional)
This is useful for modifying the way authentication is done.
## authFailure
Called from: src/node/hooks/express/webaccess.js
Things in context:
1. req - the request object
2. res - the response object
3. next - ?
This is useful for modifying the way authentication is done.
## handleMessage
Called from: src/node/handler/PadMessageHandler.js
Things in context:
1. message - the message being handled
2. client - the client object from socket.io
This hook will be called once a message arrive. If a plugin calls `callback(null)` the message will be dropped. However it is not possible to modify the message.
Plugins may also decide to implement custom behavior once a message arrives.
**WARNING**: handleMessage will be called, even if the client is not authorized to send this message. It's up to the plugin to check permissions.
Example:
```
function handleMessage ( hook, context, callback ) {
if ( context.message.type == 'USERINFO_UPDATE' ) {
// If the message type is USERINFO_UPDATE, drop the message
callback(null);
}else{
callback();
}
};
```

237
doc/api/http_api.md Normal file
View File

@ -0,0 +1,237 @@
# HTTP API
## What can I do with this API?
The API gives another web application control of the pads. The basic functions are
* create/delete pads
* grant/forbid access to pads
* get/set pad content
The API is designed in a way, so you can reuse your existing user system with their permissions, and map it to etherpad lite. Means: Your web application still has to do authentication, but you can tell etherpad lite via the api, which visitors should get which permissions. This allows etherpad lite to fit into any web application and extend it with real-time functionality. You can embed the pads via an iframe into your website.
Take a look at [HTTP API client libraries](https://github.com/Pita/etherpad-lite/wiki/HTTP-API-client-libraries) to see if a library in your favorite language.
## Examples
### Example 1
A portal (such as WordPress) wants to give a user access to a new pad. Let's assume the user have the internal id 7 and his name is michael.
Portal maps the internal userid to an etherpad author.
> Request: `http://pad.domain/api/1/createAuthorIfNotExistsFor?apikey=secret&name=Michael&authorMapper=7`
>
> Response: `{code: 0, message:"ok", data: {authorID: "a.s8oes9dhwrvt0zif"}}`
Portal maps the internal userid to an etherpad group:
> Request: `http://pad.domain/api/1/createGroupIfNotExistsFor?apikey=secret&groupMapper=7`
>
> Response: `{code: 0, message:"ok", data: {groupID: "g.s8oes9dhwrvt0zif"}}`
Portal creates a pad in the userGroup
> Request: `http://pad.domain/api/1/createGroupPad?apikey=secret&groupID=g.s8oes9dhwrvt0zif&padName=samplePad&text=This is the first sentence in the pad`
>
> Response: `{code: 0, message:"ok", data: null}`
Portal starts the session for the user on the group:
> Request: `http://pad.domain/api/1/createSession?apikey=secret&groupID=g.s8oes9dhwrvt0zif&authorID=a.s8oes9dhwrvt0zif&validUntil=1312201246`
>
> Response: `{"data":{"sessionID": "s.s8oes9dhwrvt0zif"}}`
Portal places the cookie "sessionID" with the given value on the client and creates an iframe including the pad.
### Example 2
A portal (such as WordPress) wants to transform the contents of a pad that multiple admins edited into a blog post.
Portal retrieves the contents of the pad for entry into the db as a blog post:
> Request: `http://pad.domain/api/1/getText?apikey=secret&padID=g.s8oes9dhwrvt0zif$123`
>
> Response: `{code: 0, message:"ok", data: {text:"Welcome Text"}}`
Portal submits content into new blog post
> Portal.AddNewBlog(content)
>
## Request Format
The API is accessible via HTTP. HTTP Requests are in the format /api/$APIVERSION/$FUNCTIONNAME. Parameters are transmitted via HTTP GET. $APIVERSION is 1
## Response Format
Responses are valid JSON in the following format:
```js
{
"code": number,
"message": string,
"data": obj
}
```
* **code** a return code
* **0** everything ok
* **1** wrong parameters
* **2** internal error
* **3** no such function
* **4** no or wrong API Key
* **message** a status message. Its ok if everything is fine, else it contains an error message
* **data** the payload
## Overview
![API Overview](http://i.imgur.com/d0nWp.png)
## Data Types
* **groupID** a string, the unique id of a group. Format is g.16RANDOMCHARS, for example g.s8oes9dhwrvt0zif
* **sessionID** a string, the unique id of a session. Format is s.16RANDOMCHARS, for example s.s8oes9dhwrvt0zif
* **authorID** a string, the unique id of an author. Format is a.16RANDOMCHARS, for example a.s8oes9dhwrvt0zif
* **readOnlyID** a string, the unique id of an readonly relation to a pad. Format is r.16RANDOMCHARS, for example r.s8oes9dhwrvt0zif
* **padID** a string, format is GROUPID$PADNAME, for example the pad test of group g.s8oes9dhwrvt0zif has padID g.s8oes9dhwrvt0zif$test
## Authentication
Authentication works via a token that is sent with each request as a post parameter. There is a single token per Etherpad-Lite deployment. This token will be random string, generated by Etherpad-Lite at the first start. It will be saved in APIKEY.txt in the root folder of Etherpad Lite. Only Etherpad Lite and the requesting application knows this key. Token management will not be exposed through this API.
## Node Interoperability
All functions will also be available through a node module accessable from other node.js applications.
## JSONP
The API provides _JSONP_ support to allow requests from a server in a different domain.
Simply add `&jsonp=?` to the API call.
Example usage: http://api.jquery.com/jQuery.getJSON/
# API Functions
## Groups
Pads can belong to a group. The padID of grouppads is starting with a groupID like g.asdfasdfasdfasdf$test
* **createGroup()** creates a new group <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {groupID: g.s8oes9dhwrvt0zif}}`
* **createGroupIfNotExistsFor(groupMapper)** this functions helps you to map your application group ids to etherpad lite group ids <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {groupID: g.s8oes9dhwrvt0zif}}`
* **deleteGroup(groupID)** deletes a group <br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"groupID does not exist", data: null}`
* **listPads(groupID)** returns all pads of this group<br><br>*Example returns:*
* `{code: 0, message:"ok", data: {padIDs : ["g.s8oes9dhwrvt0zif$test", "g.s8oes9dhwrvt0zif$test2"]}`
* `{code: 1, message:"groupID does not exist", data: null}`
* **createGroupPad(groupID, padName [, text])** creates a new pad in this group <br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"pad does already exist", data: null}`
* `{code: 1, message:"groupID does not exist", data: null}`
## Author
Theses authors are bind to the attributes the users choose (color and name).
* **createAuthor([name])** creates a new author <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {authorID: "a.s8oes9dhwrvt0zif"}}`
* **createAuthorIfNotExistsFor(authorMapper [, name])** this functions helps you to map your application author ids to etherpad lite author ids <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {authorID: "a.s8oes9dhwrvt0zif"}}`
* **listPadsOfAuthor(authorID)** returns an array of all pads this author contributed to<br><br>*Example returns:*
* `{code: 0, message:"ok", data: {padIDs: ["g.s8oes9dhwrvt0zif$test", "g.s8oejklhwrvt0zif$foo"]}}`
* `{code: 1, message:"authorID does not exist", data: null}`
-> can't be deleted cause this would involve scanning all the pads where this author was
## Session
Sessions can be created between a group and an author. This allows an author to access more than one group. The sessionID will be set as a cookie to the client and is valid until a certain date. Only users with a valid session for this group, can access group pads. You can create a session after you authenticated the user at your web application, to give them access to the pads. You should save the sessionID of this session and delete it after the user logged out
* **createSession(groupID, authorID, validUntil)** creates a new session. validUntil is an unix timestamp in seconds <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {sessionID: "s.s8oes9dhwrvt0zif"}}`
* `{code: 1, message:"groupID doesn't exist", data: null}`
* `{code: 1, message:"authorID doesn't exist", data: null}`
* `{code: 1, message:"validUntil is in the past", data: null}`
* **deleteSession(sessionID)** deletes a session <br><br>*Example returns:*
* `{code: 1, message:"ok", data: null}`
* `{code: 1, message:"sessionID does not exist", data: null}`
* **getSessionInfo(sessionID)** returns informations about a session <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {authorID: "a.s8oes9dhwrvt0zif", groupID: g.s8oes9dhwrvt0zif, validUntil: 1312201246}}`
* `{code: 1, message:"sessionID does not exist", data: null}`
* **listSessionsOfGroup(groupID)** returns all sessions of a group <br><br>*Example returns:*
* `{"code":0,"message":"ok","data":{"s.oxf2ras6lvhv2132":{"groupID":"g.s8oes9dhwrvt0zif","authorID":"a.akf8finncvomlqva","validUntil":2312905480}}}`
* `{code: 1, message:"groupID does not exist", data: null}`
* **listSessionsOfAuthor(authorID)** returns all sessions of an author <br><br>*Example returns:*
* `{"code":0,"message":"ok","data":{"s.oxf2ras6lvhv2132":{"groupID":"g.s8oes9dhwrvt0zif","authorID":"a.akf8finncvomlqva","validUntil":2312905480}}}`
* `{code: 1, message:"authorID does not exist", data: null}`
## Pad Content
Pad content can be updated and retrieved through the API
* **getText(padID, [rev])** returns the text of a pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {text:"Welcome Text"}}`
* `{code: 1, message:"padID does not exist", data: null}`
* **setText(padID, text)** sets the text of a pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"padID does not exist", data: null}`
* `{code: 1, message:"text too long", data: null}`
* **getHTML(padID, [rev])** returns the text of a pad formatted as HTML<br><br>*Example returns:*
* `{code: 0, message:"ok", data: {html:"Welcome Text<br>More Text"}}`
* `{code: 1, message:"padID does not exist", data: null}`
## Pad
Group pads are normal pads, but with the name schema GROUPID$PADNAME. A security manager controls access of them and its forbidden for normal pads to include a $ in the name.
* **createPad(padID [, text])** creates a new (non-group) pad. Note that if you need to create a group Pad, you should call **createGroupPad**.<br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"pad does already exist", data: null}`
* **getRevisionsCount(padID)** returns the number of revisions of this pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {revisions: 56}}`
* `{code: 1, message:"padID does not exist", data: null}`
* **padUsersCount(padID)** returns the number of user that are currently editing this pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {padUsersCount: 5}}`
* **deletePad(padID)** deletes a pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"padID does not exist", data: null}`
* **getReadOnlyID(padID)** returns the read only link of a pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {readOnlyID: "r.s8oes9dhwrvt0zif"}}`
* `{code: 1, message:"padID does not exist", data: null}`
* **setPublicStatus(padID, publicStatus)** sets a boolean for the public status of a pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"padID does not exist", data: null}`
* **getPublicStatus(padID)** return true of false <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {publicStatus: true}}`
* `{code: 1, message:"padID does not exist", data: null}`
* **setPassword(padID, password)** returns ok or a error message <br><br>*Example returns:*
* `{code: 0, message:"ok", data: null}`
* `{code: 1, message:"padID does not exist", data: null}`
* **isPasswordProtected(padID)** returns true or false <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {passwordProtection: true}}`
* `{code: 1, message:"padID does not exist", data: null}`
* **listAuthorsOfPad(padID)** returns an array of authors who contributed to this pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {authorIDs : ["a.s8oes9dhwrvt0zif", "a.akf8finncvomlqva"]}`
* `{code: 1, message:"padID does not exist", data: null}`
* **getLastEdited(padID)** returns the timestamp of the last revision of the pad <br><br>*Example returns:*
* `{code: 0, message:"ok", data: {lastEdited: 1340815946602}}`
* `{code: 1, message:"padID does not exist", data: null}`