fix: support POST-only HTTP API (#1430)

* fix: support POST-only HTTP API

ipfs/kubo#7097 will block `GET` commands on
API port, switching everything to POST.

This breaks Files screen in ipfs-webui as noted in
#1429

ipfs-webui is using older version of js-ipfs-http-client, one before
huge refactor into async iterables, which means switching to the latest
version won't be a trivial task.

For now, we just apply simple patch on top of ipfs-http-client v39.0.2
to ensure it sends commands as POST.

Proper fix will land when ipfs-webui is refactored to work with
ipfs-http-client >41.x

Closes #1429

* docs: remove GET from CORS setup for API

README.md

@@ -71,7 +71,7 @@ Run the **[cors-config.sh](./cors-config.sh)** script with:
 
 ```sh
 > ipfs config --json API.HTTPHeaders.Access-Control-Allow-Origin '["http://localhost:3000", "https://webui.ipfs.io"]'
-> ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "GET", "POST"]'
+> ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "POST"]'
 ```
 
 #### Reverting

cors-config.sh

@@ -6,7 +6,7 @@ ALLOW_ORIGINS='"http://localhost:3000", "https://webui.ipfs.io"'
 set -e
 
 ipfs config --json API.HTTPHeaders.Access-Control-Allow-Origin "[$ALLOW_ORIGINS]"
-ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "GET", "POST"]'
+ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "POST"]'
 
 echo "IPFS API CORS headers configured for $ALLOW_ORIGINS"
 echo "Please restart your IPFS daemon"

package.json

@@ -3,6 +3,7 @@
   "version": "2.7.2",
   "private": true,
   "scripts": {
+    "postinstall": "patch-package",
     "start": "run-script-os",
     "start:win32": "@powershell -Command $env:REACT_APP_GIT_REV=(git rev-parse --short HEAD); react-scripts start",
     "start:darwin:linux": "cross-env REACT_APP_GIT_REV=`git rev-parse --short HEAD` react-scripts start",
@@ -55,6 +56,7 @@
     "multiaddr": "^7.2.1",
     "multiaddr-to-uri": "^5.1.0",
     "p-queue": "^6.2.1",
+    "patch-package": "6.2.2",
     "prop-types": "^15.7.2",
     "pull-file-reader": "^1.0.2",
     "react": "^16.12.0",

patches/ipfs-http-client+39.0.2.patch

@@ -0,0 +1,91 @@
+diff --git a/node_modules/ipfs-http-client/src/config/profiles/list.js b/node_modules/ipfs-http-client/src/config/profiles/list.js
+index dbfa579..6f501f7 100644
+--- a/node_modules/ipfs-http-client/src/config/profiles/list.js
++++ b/node_modules/ipfs-http-client/src/config/profiles/list.js
+@@ -8,7 +8,7 @@ module.exports = configure(({ ky }) => {
+   return callbackify.variadic(async (options) => {
+     options = options || {}
+
+-    const res = await ky.get('config/profile/list', {
++    const res = await ky.post('config/profile/list', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers
+diff --git a/node_modules/ipfs-http-client/src/files-regular/get.js b/node_modules/ipfs-http-client/src/files-regular/get.js
+index 6c94264..68e15fe 100644
+--- a/node_modules/ipfs-http-client/src/files-regular/get.js
++++ b/node_modules/ipfs-http-client/src/files-regular/get.js
+@@ -36,7 +36,7 @@ module.exports = configure(({ ky }) => {
+       searchParams.set('length', options.length)
+     }
+
+-    const res = await ky.get('get', {
++    const res = await ky.post('get', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers,
+diff --git a/node_modules/ipfs-http-client/src/files-regular/ls.js b/node_modules/ipfs-http-client/src/files-regular/ls.js
+index 0f13f55..d81a963 100644
+--- a/node_modules/ipfs-http-client/src/files-regular/ls.js
++++ b/node_modules/ipfs-http-client/src/files-regular/ls.js
+@@ -31,7 +31,7 @@ module.exports = configure(({ ky }) => {
+       searchParams.set('recursive', options.recursive)
+     }
+
+-    const res = await ky.get('ls', {
++    const res = await ky.post('ls', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers,
+diff --git a/node_modules/ipfs-http-client/src/files-regular/refs-local.js b/node_modules/ipfs-http-client/src/files-regular/refs-local.js
+index efb8d32..afa1630 100644
+--- a/node_modules/ipfs-http-client/src/files-regular/refs-local.js
++++ b/node_modules/ipfs-http-client/src/files-regular/refs-local.js
+@@ -9,7 +9,7 @@ module.exports = configure(({ ky }) => {
+   return async function * refsLocal (options) {
+     options = options || {}
+
+-    const res = await ky.get('refs/local', {
++    const res = await ky.post('refs/local', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers
+diff --git a/node_modules/ipfs-http-client/src/files-regular/refs.js b/node_modules/ipfs-http-client/src/files-regular/refs.js
+index c6136ed..dbeb9a1 100644
+--- a/node_modules/ipfs-http-client/src/files-regular/refs.js
++++ b/node_modules/ipfs-http-client/src/files-regular/refs.js
+@@ -49,7 +49,7 @@ module.exports = configure(({ ky }) => {
+       searchParams.append('arg', arg.toString())
+     }
+
+-    const res = await ky.get('refs', {
++    const res = await ky.post('refs', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers,
+diff --git a/node_modules/ipfs-http-client/src/pubsub/ls.js b/node_modules/ipfs-http-client/src/pubsub/ls.js
+index 177dcd4..d2bc8f6 100644
+--- a/node_modules/ipfs-http-client/src/pubsub/ls.js
++++ b/node_modules/ipfs-http-client/src/pubsub/ls.js
+@@ -6,7 +6,7 @@ module.exports = configure(({ ky }) => {
+   return async (options) => {
+     options = options || {}
+
+-    const { Strings } = await ky.get('pubsub/ls', {
++    const { Strings } = await ky.post('pubsub/ls', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers,
+diff --git a/node_modules/ipfs-http-client/src/pubsub/peers.js b/node_modules/ipfs-http-client/src/pubsub/peers.js
+index bdeca60..5fa5b24 100644
+--- a/node_modules/ipfs-http-client/src/pubsub/peers.js
++++ b/node_modules/ipfs-http-client/src/pubsub/peers.js
+@@ -14,7 +14,7 @@ module.exports = configure(({ ky }) => {
+     const searchParams = new URLSearchParams(options.searchParams)
+     searchParams.set('arg', topic)
+
+-    const { Strings } = await ky.get('pubsub/peers', {
++    const { Strings } = await ky.post('pubsub/peers', {
+       timeout: options.timeout,
+       signal: options.signal,
+       headers: options.headers,

src/welcome/WelcomePage.js

@@ -74,7 +74,7 @@ const ConnectionStatus = ({ t, connected, sameOrigin }) => {
           </Trans>
           <Shell>
             <code className='db'>$ ipfs config --json API.HTTPHeaders.Access-Control-Allow-Origin '[{addOrigin && `"${origin}", `}"{defaultDomains.join('", "')}"]'</code>
-            <code className='db'>$ ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "GET", "POST"]'</code>
+            <code className='db'>$ ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "POST"]'</code>
           </Shell>
         </div>
       )}