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TiddlyWiki5/core/modules/savers/github.js
Jeremy Ruston 82c8fe7fa8
Introduce JSON parse utility function with error handling (#6401)
* Introduce JSON parse utility function with error handling

Fixes #6400

* Fix typo
2022-02-21 15:29:25 +00:00

120 lines
2.9 KiB
JavaScript

/*\
title: $:/core/modules/savers/github.js
type: application/javascript
module-type: saver
Saves wiki by pushing a commit to the GitHub v3 REST API
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Select the appropriate saver module and set it up
*/
var GitHubSaver = function(wiki) {
this.wiki = wiki;
};
GitHubSaver.prototype.save = function(text,method,callback) {
var self = this,
username = this.wiki.getTiddlerText("$:/GitHub/Username"),
password = $tw.utils.getPassword("github"),
repo = this.wiki.getTiddlerText("$:/GitHub/Repo"),
path = this.wiki.getTiddlerText("$:/GitHub/Path",""),
filename = this.wiki.getTiddlerText("$:/GitHub/Filename"),
branch = this.wiki.getTiddlerText("$:/GitHub/Branch") || "main",
endpoint = this.wiki.getTiddlerText("$:/GitHub/ServerURL") || "https://api.github.com",
headers = {
"Accept": "application/vnd.github.v3+json",
"Content-Type": "application/json;charset=UTF-8",
"Authorization": "Basic " + window.btoa(username + ":" + password),
"If-None-Match": ""
};
// Bail if we don't have everything we need
if(!username || !password || !repo || !filename) {
return false;
}
// Make sure the path start and ends with a slash
if(path.substring(0,1) !== "/") {
path = "/" + path;
}
if(path.substring(path.length - 1) !== "/") {
path = path + "/";
}
// Compose the base URI
var uri = endpoint + "/repos/" + repo + "/contents" + path;
// Perform a get request to get the details (inc shas) of files in the same path as our file
$tw.utils.httpRequest({
url: uri,
type: "GET",
headers: headers,
data: {
ref: branch
},
callback: function(err,getResponseDataJson,xhr) {
var getResponseData,sha = "";
if(err && xhr.status !== 404) {
return callback(err);
}
if(xhr.status !== 404) {
getResponseData = $tw.utils.parseJSONSafe(getResponseDataJson);
$tw.utils.each(getResponseData,function(details) {
if(details.name === filename) {
sha = details.sha;
}
});
}
var data = {
message: $tw.language.getString("ControlPanel/Saving/GitService/CommitMessage"),
content: $tw.utils.base64Encode(text),
branch: branch,
sha: sha
};
// Perform a PUT request to save the file
$tw.utils.httpRequest({
url: uri + filename,
type: "PUT",
headers: headers,
data: JSON.stringify(data),
callback: function(err,putResponseDataJson,xhr) {
if(err) {
return callback(err);
}
var putResponseData = $tw.utils.parseJSONSafe(putResponseDataJson);
callback(null);
}
});
}
});
return true;
};
/*
Information about this saver
*/
GitHubSaver.prototype.info = {
name: "github",
priority: 2000,
capabilities: ["save", "autosave"]
};
/*
Static method that returns true if this saver is capable of working
*/
exports.canSave = function(wiki) {
return true;
};
/*
Create an instance of this saver
*/
exports.create = function(wiki) {
return new GitHubSaver(wiki);
};
})();