resize image

Dockerfile

-FROM node
+FROM node:12-buster-slim
+RUN apt update && apt -y install imagemagick && rm -rf rm -rf /var/lib/apt/lists/*
 RUN mkdir /usr/src/app
 COPY package.json /usr/src/app
 WORKDIR /usr/src/app

index.js

@@ -3,6 +3,7 @@ const https = require("https");
 const fs = require("fs");
 const _request = require("request");
 const url = require("url");
+const gm = require("gm").subClass({ imageMagick: true });
 
 const https_options = {
 	cert: fs.readFileSync("./certs/fullchain.pem"),
@@ -76,9 +77,20 @@ function request_avatar(response, username, fallback_username) {
 							}
 						} else { 
 							var recv_buf = Buffer.from(body, 'binary');
-							response.writeHead(200, { "Content-Type": "image/png" });
-							fs.writeFileSync("./test.png", recv_buf);
-							response.end(recv_buf);
+							gm(recv_buf).resize(25, 25).toBuffer("PNG", (error, dst_buf) => { 
+								if (error) {
+									if (fallback_username) {
+										request_avatar(response, fallback_username);
+									} else {
+										response.writeHead(500);
+										response.end("Convert error.");
+										console.error("CONVERT ERROR", error);
+									}
+								} else {
+									response.writeHead(200, { "Content-Type": "image/png" });
+									response.end(dst_buf);
+								}
+							});
 						}
 				});
 			}

package-lock.json

@@ -15,6 +15,16 @@
         "uri-js": "^4.2.2"
       }
     },
+    "array-parallel": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/array-parallel/-/array-parallel-0.1.3.tgz",
+      "integrity": "sha1-j3hTCJJu1apHjEfmTRszS2wMlH0="
+    },
+    "array-series": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/array-series/-/array-series-0.1.5.tgz",
+      "integrity": "sha1-3103v8XC7wdV4qpPkv6ufUtaly8="
+    },
     "asn1": {
       "version": "0.2.4",
       "resolved": "https://registry.npm.taobao.org/asn1/download/asn1-0.2.4.tgz",
@@ -25,17 +35,17 @@
     },
     "assert-plus": {
       "version": "1.0.0",
-      "resolved": "https://registry.npm.taobao.org/assert-plus/download/assert-plus-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
     },
     "asynckit": {
       "version": "0.4.0",
-      "resolved": "https://registry.npm.taobao.org/asynckit/download/asynckit-0.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
     "aws-sign2": {
       "version": "0.7.0",
-      "resolved": "https://registry.npm.taobao.org/aws-sign2/download/aws-sign2-0.7.0.tgz",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
       "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg="
     },
     "aws4": {
@@ -45,7 +55,7 @@
     },
     "bcrypt-pbkdf": {
       "version": "1.0.2",
-      "resolved": "https://registry.npm.taobao.org/bcrypt-pbkdf/download/bcrypt-pbkdf-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
       "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
       "requires": {
         "tweetnacl": "^0.14.3"
@@ -53,7 +63,7 @@
     },
     "caseless": {
       "version": "0.12.0",
-      "resolved": "https://registry.npm.taobao.org/caseless/download/caseless-0.12.0.tgz",
+      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
     "combined-stream": {
@@ -66,25 +76,42 @@
     },
     "core-util-is": {
       "version": "1.0.2",
-      "resolved": "https://registry.npm.taobao.org/core-util-is/download/core-util-is-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "cross-spawn": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-4.0.2.tgz",
+      "integrity": "sha1-e5JHYhwjrf3ThWAEqCPL45dCTUE=",
+      "requires": {
+        "lru-cache": "^4.0.1",
+        "which": "^1.2.9"
+      }
+    },
     "dashdash": {
       "version": "1.14.1",
-      "resolved": "https://registry.npm.taobao.org/dashdash/download/dashdash-1.14.1.tgz",
+      "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
       "requires": {
         "assert-plus": "^1.0.0"
       }
     },
+    "debug": {
+      "version": "3.2.6",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
+      "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+      "requires": {
+        "ms": "^2.1.1"
+      }
+    },
     "delayed-stream": {
       "version": "1.0.0",
-      "resolved": "https://registry.npm.taobao.org/delayed-stream/download/delayed-stream-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
     },
     "ecc-jsbn": {
       "version": "0.1.2",
-      "resolved": "https://registry.npm.taobao.org/ecc-jsbn/download/ecc-jsbn-0.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
       "integrity": "sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=",
       "requires": {
         "jsbn": "~0.1.0",
@@ -98,22 +125,22 @@
     },
     "extsprintf": {
       "version": "1.3.0",
-      "resolved": "https://registry.npm.taobao.org/extsprintf/download/extsprintf-1.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
     },
     "fast-deep-equal": {
       "version": "2.0.1",
-      "resolved": "https://registry.npm.taobao.org/fast-deep-equal/download/fast-deep-equal-2.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
       "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
     },
     "fast-json-stable-stringify": {
       "version": "2.0.0",
-      "resolved": "https://registry.npm.taobao.org/fast-json-stable-stringify/download/fast-json-stable-stringify-2.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
       "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
     },
     "forever-agent": {
       "version": "0.6.1",
-      "resolved": "https://registry.npm.taobao.org/forever-agent/download/forever-agent-0.6.1.tgz",
+      "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
       "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE="
     },
     "form-data": {
@@ -128,15 +155,26 @@
     },
     "getpass": {
       "version": "0.1.7",
-      "resolved": "https://registry.npm.taobao.org/getpass/download/getpass-0.1.7.tgz",
+      "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
       "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
       "requires": {
         "assert-plus": "^1.0.0"
       }
     },
+    "gm": {
+      "version": "1.23.1",
+      "resolved": "https://registry.npmjs.org/gm/-/gm-1.23.1.tgz",
+      "integrity": "sha1-Lt7rlYCE0PjqeYjl2ZWxx9/BR3c=",
+      "requires": {
+        "array-parallel": "~0.1.3",
+        "array-series": "~0.1.5",
+        "cross-spawn": "^4.0.0",
+        "debug": "^3.1.0"
+      }
+    },
     "har-schema": {
       "version": "2.0.0",
-      "resolved": "https://registry.npm.taobao.org/har-schema/download/har-schema-2.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-2.0.0.tgz",
       "integrity": "sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI="
     },
     "har-validator": {
@@ -150,7 +188,7 @@
     },
     "http-signature": {
       "version": "1.2.0",
-      "resolved": "https://registry.npm.taobao.org/http-signature/download/http-signature-1.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
       "integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
       "requires": {
         "assert-plus": "^1.0.0",
@@ -160,22 +198,27 @@
     },
     "is-typedarray": {
       "version": "1.0.0",
-      "resolved": "https://registry.npm.taobao.org/is-typedarray/download/is-typedarray-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
       "integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo="
     },
+    "isexe": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+      "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA="
+    },
     "isstream": {
       "version": "0.1.2",
-      "resolved": "https://registry.npm.taobao.org/isstream/download/isstream-0.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
     },
     "jsbn": {
       "version": "0.1.1",
-      "resolved": "https://registry.npm.taobao.org/jsbn/download/jsbn-0.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
       "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM="
     },
     "json-schema": {
       "version": "0.2.3",
-      "resolved": "https://registry.npm.taobao.org/json-schema/download/json-schema-0.2.3.tgz?cache=0&sync_timestamp=1567740732347&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fjson-schema%2Fdownload%2Fjson-schema-0.2.3.tgz",
+      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
       "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM="
     },
     "json-schema-traverse": {
@@ -185,12 +228,12 @@
     },
     "json-stringify-safe": {
       "version": "5.0.1",
-      "resolved": "https://registry.npm.taobao.org/json-stringify-safe/download/json-stringify-safe-5.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz",
       "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
     },
     "jsprim": {
       "version": "1.4.1",
-      "resolved": "https://registry.npm.taobao.org/jsprim/download/jsprim-1.4.1.tgz",
+      "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
       "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
       "requires": {
         "assert-plus": "1.0.0",
@@ -199,6 +242,15 @@
         "verror": "1.10.0"
       }
     },
+    "lru-cache": {
+      "version": "4.1.5",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
+      "integrity": "sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==",
+      "requires": {
+        "pseudomap": "^1.0.2",
+        "yallist": "^2.1.2"
+      }
+    },
     "mime-db": {
       "version": "1.40.0",
       "resolved": "https://registry.npm.taobao.org/mime-db/download/mime-db-1.40.0.tgz?cache=0&sync_timestamp=1569468742433&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fmime-db%2Fdownload%2Fmime-db-1.40.0.tgz",
@@ -212,6 +264,11 @@
         "mime-db": "1.40.0"
       }
     },
+    "ms": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+    },
     "oauth-sign": {
       "version": "0.9.0",
       "resolved": "https://registry.npm.taobao.org/oauth-sign/download/oauth-sign-0.9.0.tgz",
@@ -219,9 +276,14 @@
     },
     "performance-now": {
       "version": "2.1.0",
-      "resolved": "https://registry.npm.taobao.org/performance-now/download/performance-now-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
       "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
     },
+    "pseudomap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
+      "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM="
+    },
     "psl": {
       "version": "1.4.0",
       "resolved": "https://registry.npm.taobao.org/psl/download/psl-1.4.0.tgz",
@@ -301,14 +363,14 @@
       "dependencies": {
         "punycode": {
           "version": "1.4.1",
-          "resolved": "https://registry.npm.taobao.org/punycode/download/punycode-1.4.1.tgz",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
           "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4="
         }
       }
     },
     "tunnel-agent": {
       "version": "0.6.0",
-      "resolved": "https://registry.npm.taobao.org/tunnel-agent/download/tunnel-agent-0.6.0.tgz",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "requires": {
         "safe-buffer": "^5.0.1"
@@ -316,7 +378,7 @@
     },
     "tweetnacl": {
       "version": "0.14.5",
-      "resolved": "https://registry.npm.taobao.org/tweetnacl/download/tweetnacl-0.14.5.tgz",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
     "uri-js": {
@@ -334,13 +396,26 @@
     },
     "verror": {
       "version": "1.10.0",
-      "resolved": "https://registry.npm.taobao.org/verror/download/verror-1.10.0.tgz",
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "requires": {
         "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
         "extsprintf": "^1.2.0"
       }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
     }
   }
 }

package.json

@@ -17,6 +17,7 @@
   },
   "homepage": "https://github.com/mycard/avatar-helper#readme",
   "dependencies": {
+    "gm": "^1.23.1",
     "request": "^2.88.0"
   }
 }