Add Anthropic API integration

.gitignore

@@ -106,6 +106,7 @@ dist
 # user defined assets
 bin
 data/chatgpt-apikey.txt
+data/anthropic-apikey.txt
 app/assets/img/_templates
 app/assets/img/_captured
 settings.ini

lib/anthropic.js

@@ -0,0 +1,59 @@
+// Anthropic.js
+// https://github.com/gnh1201/welsonjs
+// Anthropic API documentation: https://docs.anthropic.com/en/api/getting-started
+var FILE = require("lib/file");
+var HTTP = require("lib/http");
+
+function loadApiKey() {
+    var s = FILE.readFile("data/anthropic-apikey.txt", FILE.CdoCharset.CdoUTF_8);
+    return s.trim();
+}
+
+function chat(content) {
+    var answers = [];
+
+    var apikey = loadApiKey();
+    console.log("Anthropic (Claude) API KEY:", apikey);
+
+    var response = HTTP.create("MSXML")
+        .setVariables({
+            "ANTHROPIC_API_KEY": apikey
+        })
+        .setHeaders({
+            "Content-Type": "application/json",
+            "x-api-key": "{ANTHROPIC_API_KEY}",
+            "anthropic-version": "2023-06-01"
+        })
+        .setRequestBody({
+            "model": "claude-3-5-sonnet-20241022",
+            "max_tokens": 1024,
+            "messages": [{
+                "role": "user",
+                "content": content
+            }]
+        })
+        .open("post", "https://api.anthropic.com/v1/messages")
+        .send()
+        .responseBody;
+
+    if ("error" in response) {
+        answers.push("Error: " + response.error.message);
+    } else if ("content" in response && response.content.length > 0) {
+        response.content.forEach(function(x) {
+            if (x.type == "text") {
+                answers.push(x.text);
+            } else {
+                answers.push("Not supported type: " + x.type);
+            }
+        });
+    }
+
+    return answers.join(' ');
+}
+
+exports.chat = chat;
+
+exports.VERSIONINFO = "Anthropic (Claude) interface (anthropic.js) version 0.1";
+exports.AUTHOR = "abuse@catswords.net";
+exports.global = global;
+exports.require = global.require;