[Jaishree] Add C Libcurl Codegen

helpers/codegen/__tests__/__snapshots__/codegen.spec.js.snap

@@ -1,5 +1,56 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`generate request for C LibCurl generate GET request 1`] = `
+"CURL *hnd = curl_easy_init();
+curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, \\"GET\\");
+curl_easy_setopt(hnd, CURLOPT_URL, \\"https://httpbin.org/path/to?a=b\\");
+struct curl_slist *headers = NULL;
+headers = curl_slist_append(headers, \\"h1: h1v\\");
+headers = curl_slist_append(headers, \\"h2: h2v\\");
+headers = curl_slist_append(headers, \\"Authorization: Basic bW9ja1VzZXI6bW9ja1Bhc3N3b3Jk\\");
+curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);
+CURLcode ret = curl_easy_perform(hnd);"
+`;
+
+exports[`generate request for C LibCurl generate POST request for JSON 1`] = `
+"CURL *hnd = curl_easy_init();
+curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, \\"POST\\");
+curl_easy_setopt(hnd, CURLOPT_URL, \\"https://httpbin.org/path/to?a=b\\");
+struct curl_slist *headers = NULL;
+headers = curl_slist_append(headers, \\"h1: h1v\\");
+headers = curl_slist_append(headers, \\"h2: h2v\\");
+headers = curl_slist_append(headers, \\"Authorization: Bearer abcdefghijklmn\\");
+headers = curl_slist_append(headers, \\"Content-Type: application/json\\");
+curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);
+curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, \\"{\\\\\\"foo\\\\\\": \\\\\\"bar\\\\\\", \\\\\\"baz\\\\\\": \\\\\\"qux\\\\\\"}\\");
+CURLcode ret = curl_easy_perform(hnd);"
+`;
+
+exports[`generate request for C LibCurl generate POST request for XML 1`] = `
+"CURL *hnd = curl_easy_init();
+curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, \\"POST\\");
+curl_easy_setopt(hnd, CURLOPT_URL, \\"https://httpbin.org/path/to?a=b\\");
+struct curl_slist *headers = NULL;
+headers = curl_slist_append(headers, \\"h1: h1v\\");
+headers = curl_slist_append(headers, \\"h2: h2v\\");
+headers = curl_slist_append(headers, \\"Authorization: Bearer abcdefghijklmn\\");
+headers = curl_slist_append(headers, \\"Content-Type: application/xml\\");
+curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);
+curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, \\"<?xml version='1.0' encoding='utf-8'?>\\\\n<xml>\\\\n  <element foo=\\\\\\"bar\\\\\\"></element>\\\\n</xml>\\");
+CURLcode ret = curl_easy_perform(hnd);"
+`;
+
+exports[`generate request for C LibCurl generate PUT request for www-form-urlencoded 1`] = `
+"CURL *hnd = curl_easy_init();
+curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, \\"PUT\\");
+curl_easy_setopt(hnd, CURLOPT_URL, \\"https://httpbin.org/path/to?a=b\\");
+struct curl_slist *headers = NULL;
+headers = curl_slist_append(headers, \\"Content-Type: application/x-www-form-urlencoded\\");
+curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);
+curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, \\"foo=bar&baz=qux\\");
+CURLcode ret = curl_easy_perform(hnd);"
+`;
+
 exports[`generate request for C# RestSharp generate GET request 1`] = `
 "var client = new RestClient(\\"https://httpbin.org\\");
 

helpers/codegen/codegen.js

@@ -17,6 +17,8 @@ import { SalesforceApexCodegen } from "./generators/salesforce-apex"
 import { ShellHTTPie } from "./generators/shell-httpie"
 import { JavaOkHttpClientCodegen } from "./generators/java-ok-http-client"
 import { JavaUnirestCodegen } from "./generators/java-unirest"
+import { CLibCurlCodeGen } from "./generators/c-libcurl"
+
 /* Register code generators here.
  * A code generator is defined as an object with the following structure.
  *
@@ -26,6 +28,7 @@ import { JavaUnirestCodegen } from "./generators/java-unirest"
  *
  */
 export const codegens = [
+  CLibCurlCodeGen,
   CurlCodegen,
   CsRestSharpCodegen,
   GoNativeCodegen,

helpers/codegen/generators/c-libcurl.js

@@ -0,0 +1,60 @@
+export const CLibCurlCodeGen = {
+  id: "C LibCurl",
+  name: "C LibCurl",
+  generator: ({
+    auth,
+    httpUser,
+    httpPassword,
+    method,
+    url,
+    pathName,
+    queryString,
+    bearerToken,
+    headers,
+    rawInput,
+    rawParams,
+    rawRequestBody,
+    contentType,
+  }) => {
+    const requestString = []
+
+    requestString.push("CURL *hnd = curl_easy_init();")
+    requestString.push(`curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "${method}");`)
+    requestString.push(`curl_easy_setopt(hnd, CURLOPT_URL, "${url}${pathName}${queryString}");`)
+    requestString.push(`struct curl_slist *headers = NULL;`)
+
+    if (headers) {
+      headers.forEach(({ key, value }) => {
+        if (key) requestString.push(`headers = curl_slist_append(headers, "${key}: ${value}");`)
+      })
+    }
+
+    if (auth === "Basic Auth") {
+      const basic = `${httpUser}:${httpPassword}`
+      requestString.push(
+        `headers = curl_slist_append(headers, "Authorization: Basic ${window.btoa(
+          unescape(encodeURIComponent(basic))
+        )}");`
+      )
+    } else if (auth === "Bearer Token" || auth === "OAuth 2.0") {
+      requestString.push(
+        `headers = curl_slist_append(headers, "Authorization: Bearer ${bearerToken}");`
+      )
+    }
+
+    if (["POST", "PUT", "PATCH", "DELETE"].includes(method)) {
+      let requestBody = rawInput ? rawParams : rawRequestBody
+
+      if (contentType.includes("x-www-form-urlencoded")) {
+        requestBody = `"${requestBody}"`
+      } else requestBody = JSON.stringify(requestBody)
+
+      requestString.push(`headers = curl_slist_append(headers, "Content-Type: ${contentType}");`)
+      requestString.push("curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);")
+      requestString.push(`curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, ${requestBody});`)
+    } else requestString.push("curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);")
+
+    requestString.push(`CURLcode ret = curl_easy_perform(hnd);`)
+    return requestString.join("\n")
+  },
+}