Implement config (fixes #351)

server/Cargo.lock

@@ -335,6 +335,14 @@ name = "adler32"
 version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "aho-corasick"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.4"
@@ -537,6 +545,21 @@ dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "config"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-ini 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde-hjson 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "copyless"
 version = "0.1.4"
@@ -692,6 +715,17 @@ dependencies = [
  "migrations_macros 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "docopt"
+version = "0.6.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "dotenv"
 version = "0.14.1"
@@ -702,6 +736,11 @@ dependencies = [
  "regex 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "dtoa"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "dtoa"
 version = "0.4.4"
@@ -951,6 +990,17 @@ dependencies = [
  "unicode-segmentation 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hjson"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "docopt 0.6.86 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde-hjson 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 0.8.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hostname"
 version = "0.1.5"
@@ -1028,6 +1078,11 @@ dependencies = [
  "winreg 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "itoa"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "itoa"
 version = "0.4.4"
@@ -1061,6 +1116,11 @@ name = "language-tags"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "lazy_static"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "lazy_static"
 version = "1.3.0"
@@ -1080,11 +1140,13 @@ dependencies = [
  "actix-web-actors 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bcrypt 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "config 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "diesel_migrations 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "dotenv 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hjson 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "htmlescape 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonwebtoken 6.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1135,6 +1197,15 @@ name = "libc"
 version = "0.2.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "linked-hash-map"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_test 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "linked-hash-map"
 version = "0.5.2"
@@ -1186,6 +1257,14 @@ name = "matches"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "memchr"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "memchr"
 version = "2.2.1"
@@ -1339,6 +1418,14 @@ dependencies = [
  "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.8"
@@ -1748,6 +1835,18 @@ name = "redox_syscall"
 version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "regex"
+version = "0.1.80"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "regex"
 version = "1.2.0"
@@ -1760,6 +1859,11 @@ dependencies = [
  "utf8-ranges 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "regex-syntax"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.10"
@@ -1820,6 +1924,11 @@ dependencies = [
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rust-ini"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.15"
@@ -1899,6 +2008,11 @@ name = "semver-parser"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "serde"
+version = "0.8.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "serde"
 version = "1.0.97"
@@ -1907,6 +2021,18 @@ dependencies = [
  "serde_derive 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "serde-hjson"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "linked-hash-map 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.97"
@@ -1917,6 +2043,17 @@ dependencies = [
  "syn 0.15.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "serde_json"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "dtoa 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde_json"
 version = "1.0.40"
@@ -1928,6 +2065,14 @@ dependencies = [
  "serde 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "serde_test"
+version = "0.8.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.5.5"
@@ -2006,6 +2151,11 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "strsim"
 version = "0.7.0"
@@ -2097,6 +2247,23 @@ dependencies = [
  "wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "thread-id"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "thread_local"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "thread_local"
 version = "0.3.6"
@@ -2242,6 +2409,14 @@ dependencies = [
  "tokio-reactor 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "toml"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "trust-dns-proto"
 version = "0.7.4"
@@ -2357,6 +2532,11 @@ dependencies = [
  "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "utf8-ranges"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "utf8-ranges"
 version = "1.0.3"
@@ -2485,6 +2665,14 @@ dependencies = [
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "yaml-rust"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [metadata]
 "checksum activitypub 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "dbb11d9099278667d3723c6491f25ea34dcae3eb54d73070e665d312c4455b25"
 "checksum activitystreams-derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "176bdecfca82b1980e4769e3d54b6a392284b724083e0bff68272e290f17458f"
@@ -2507,6 +2695,7 @@ dependencies = [
 "checksum actix-web-codegen 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3fe9e3cdec1e645b675f354766e0688c5705021c85ab3cf739be1c8999b91c76"
 "checksum actix_derive 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0bf5f6d7bf2d220ae8b4a7ae02a572bb35b7c4806b24049af905ab8110de156c"
 "checksum adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7e522997b529f05601e05166c07ed17789691f562762c7f3b987263d2dedee5c"
+"checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
 "checksum aho-corasick 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "36b7aa1ccb7d7ea3f437cf025a2ab1c47cc6c1bc9fc84918ff449def12f5e282"
 "checksum arc-swap 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)" = "bc4662175ead9cd84451d5c35070517777949a2ed84551764129cedb88384841"
 "checksum ascii_utils 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "71938f30533e4d95a6d17aa530939da3842c2ab6f4f84b9dae68447e4129f74a"
@@ -2531,6 +2720,7 @@ dependencies = [
 "checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
 "checksum chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "77d81f58b7301084de3b958691458a53c3f7e0b1d702f77e550b6a88e3a88abe"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
+"checksum config 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "f9107d78ed62b3fa5a86e7d18e647abed48cfd8f8fab6c72f4cdb982d196f7e6"
 "checksum copyless 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "6ff9c56c9fb2a49c05ef0e431485a22400af20d33226dc0764d891d09e724127"
 "checksum core-foundation 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "25b9e03f145fd4f2bf705e07b900cd41fc636598fe5dc452fd0db1441c3f496d"
 "checksum core-foundation-sys 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e7ca8a5221364ef15ce201e8ed2f609fc312682a8f4e0e3d4aa5879764e0fa3b"
@@ -2547,7 +2737,9 @@ dependencies = [
 "checksum diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8d24935ba50c4a8dc375a0fd1f8a2ba6bdbdc4125713126a74b965d6a01a06d7"
 "checksum diesel_derives 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "62a27666098617d52c487a41f70de23d44a1dc1f3aa5877ceba2790fb1f1cab4"
 "checksum diesel_migrations 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3cde8413353dc7f5d72fa8ce0b99a560a359d2c5ef1e5817ca731cd9008f4c"
+"checksum docopt 0.6.86 (registry+https://github.com/rust-lang/crates.io-index)" = "4a7ef30445607f6fc8720f0a0a2c7442284b629cf0d049286860fae23e71c4d9"
 "checksum dotenv 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4424bad868b0ffe6ae351ee463526ba625bbca817978293bbe6bb7dc1804a175"
+"checksum dtoa 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0dd841b58510c9618291ffa448da2e4e0f699d984d436122372f446dae62263d"
 "checksum dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ea57b42383d091c85abcc2706240b94ab2a8fa1fc81c10ff23c4de06e2a90b5e"
 "checksum either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "5527cfe0d098f36e3f8839852688e63c8fff1c90b2b405aef730615f9a7bcf7b"
 "checksum email 0.0.20 (registry+https://github.com/rust-lang/crates.io-index)" = "91549a51bb0241165f13d57fc4c72cef063b4088fb078b019ecbf464a45f22e4"
@@ -2579,6 +2771,7 @@ dependencies = [
 "checksum hashbrown 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "29fba9abe4742d586dfd0c06ae4f7e73a1c2d86b856933509b269d82cdf06e18"
 "checksum hashbrown 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1de41fb8dba9714efd92241565cdff73f78508c95697dd56787d3cba27e2353"
 "checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
+"checksum hjson 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0849d73a64ec77d1c8354aff489cf31943c4b4d3716de1eabfba572c70fde530"
 "checksum hostname 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "21ceb46a83a85e824ef93669c8b390009623863b5c195d1ba747292c0c72f94e"
 "checksum htmlescape 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e9025058dae765dee5070ec375f591e2ba14638c63feff74f13805a72e523163"
 "checksum http 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "eed324f0f0daf6ec10c474f150505af2c143f251722bf9dbd1261bd1f2ee2c1a"
@@ -2589,14 +2782,17 @@ dependencies = [
 "checksum indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7e81a7c05f79578dbc15793d8b619db9ba32b4577003ef3af1a91c416798c58d"
 "checksum iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dbe6e417e7d0975db6512b90796e8ce223145ac4e33c377e4a42882a0e88bb08"
 "checksum ipconfig 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "aa79fa216fbe60834a9c0737d7fcd30425b32d1c58854663e24d4c4b328ed83f"
+"checksum itoa 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ae3088ea4baeceb0284ee9eea42f591226e6beaecf65373e41b38d95a1b8e7a1"
 "checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
 "checksum jsonwebtoken 6.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a81d1812d731546d2614737bee92aa071d37e9afa1409bc374da9e5e70e70b22"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
+"checksum lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "76f033c7ad61445c5b347c7382dd1237847eb1bce590fe50365dcb33d546be73"
 "checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
 "checksum lettre 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c66afaa5dfadbb81d4e00fd1d1ab057c7cd4c799c5a44e0009386d553587e728"
 "checksum lettre_email 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "bbb68ca999042d965476e47bbdbacd52db0927348b6f8062c44dd04a3b1fd43b"
 "checksum libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)" = "d44e80633f007889c7eff624b709ab43c92d708caad982295768a7b13ca3b5eb"
+"checksum linked-hash-map 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6d262045c5b87c0861b3f004610afd0e2c851e2908d08b6c870cbb9d5f494ecd"
 "checksum linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
 "checksum lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "62ebf1391f6acad60e5c8b43706dde4582df75c06698ab44511d15016bc2442c"
 "checksum lock_api 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ed946d4529956a20f2d63ebe1b69996d5a2137c91913fe3ebbeff957f5bca7ff"
@@ -2604,6 +2800,7 @@ dependencies = [
 "checksum log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "c275b6ad54070ac2d665eef9197db647b32239c9d244bfb6f041a766d00da5b3"
 "checksum lru-cache 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "31e24f1ad8321ca0e8a1e0ac13f23cb668e6f5466c2c57319f6a5cf1cc8e3b1c"
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
+"checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
 "checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum migrations_internals 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8089920229070f914b9ce9b07ef60e175b2b9bc2d35c3edd8bf4433604e863b9"
 "checksum migrations_macros 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1664412abf7db2b8a6d58be42a38b099780cc542b5b350383b805d88932833fe"
@@ -2619,6 +2816,7 @@ dependencies = [
 "checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
 "checksum nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2ad2a91a8e869eeb30b9cb3119ae87773a8f4ae617f41b1eb9c154b2905f7bd6"
 "checksum num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
+"checksum num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "92e5113e9fd4cc14ded8e499429f396a20f98c772a47cc8622a736e1ec843c31"
 "checksum num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "6ba9a427cfca2be13aa6f6403b0b7e7368fe982bfa16fccc450ce74c46cd9b32"
 "checksum num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcef43580c035376c0705c42792c294b66974abbfd2789b511784023f71f3273"
 "checksum opaque-debug 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "93f5bb2e8e8dec81642920ccff6b61f1eb94fa3020c5a325c9851ff604152409"
@@ -2665,13 +2863,16 @@ dependencies = [
 "checksum rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
+"checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
 "checksum regex 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6b23da8dfd98a84bd7e08700190a5d9f7d2d38abd4369dd1dae651bc40bfd2cc"
+"checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
 "checksum regex-syntax 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "cd5485bf1523a9ed51c4964273f22f63f24e31632adb5dad134f488f86a3875c"
 "checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
 "checksum resolv-conf 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b263b4aa1b5de9ffc0054a2386f96992058bb6870aab516f8cdeb8a667d56dcb"
 "checksum ring 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)" = "426bc186e3e95cac1e4a4be125a4aca7e84c2d616ffc02244eef36e2a60a093c"
 "checksum rss 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d0706a43e890fbaf1714d495d12f69a7b34b70c6e903586d70311c2ce15ffe67"
 "checksum rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)" = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
+"checksum rust-ini 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e52c148ef37f8c375d49d5a73aa70713125b7f19095948a923f80afdeb22ec2"
 "checksum rustc-demangle 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f4dccf6f4891ebcc0c39f9b6eb1a83b9bf5d747cb439ec6fba4f3b977038af"
 "checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
@@ -2684,9 +2885,13 @@ dependencies = [
 "checksum security-framework-sys 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9636f8989cbf61385ae4824b98c1aaa54c994d7d8b41f11c601ed799f0549a56"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+"checksum serde 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)" = "9dad3f759919b92c3068c696c15c3d17238234498bbdcc80f2c469606f948ac8"
 "checksum serde 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)" = "d46b3dfedb19360a74316866cef04687cd4d6a70df8e6a506c63512790769b72"
+"checksum serde-hjson 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0b833c5ad67d52ced5f5938b2980f32a9c1c5ef047f0b4fb3127e7a423c76153"
 "checksum serde_derive 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)" = "c22a0820adfe2f257b098714323563dd06426502abbbce4f51b72ef544c5027f"
+"checksum serde_json 0.8.6 (registry+https://github.com/rust-lang/crates.io-index)" = "67f7d2e9edc3523a9c8ec8cd6ec481b3a27810aafee3e625d311febd3e656b4c"
 "checksum serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "051c49229f282f7c6f3813f8286cc1e3323e8051823fce42c7ea80fe13521704"
+"checksum serde_test 0.8.23 (registry+https://github.com/rust-lang/crates.io-index)" = "110b3dbdf8607ec493c22d5d947753282f3bae73c0f56d322af1e8c78e4c23d5"
 "checksum serde_urlencoded 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "642dd69105886af2efd227f75a520ec9b44a820d65bc133a9131f7d229fd165a"
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 "checksum signal-hook 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4f61c4d59f3aaa9f61bba6450a9b80ba48362fd7d651689e7a10c453b1f6dc68"
@@ -2698,6 +2903,7 @@ dependencies = [
 "checksum spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44363f6f51401c34e7be73db0db371c04705d35efbe9f7d6082e03a921a32c55"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 "checksum string 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
+"checksum strsim 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "67f84c44fbb2f91db7fef94554e6b2ac05909c9c0b0bc23bb98d3a1aebfe7f7c"
 "checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
 "checksum strum 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e5d1c33039533f051704951680f1adfd468fd37ac46816ded0d9ee068e60f05f"
 "checksum strum_macros 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "47cd23f5c7dee395a00fa20135e2ec0fffcdfa151c56182966d7a3261343432e"
@@ -2708,6 +2914,8 @@ dependencies = [
 "checksum synstructure 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "02353edf96d6e4dc81aea2d8490a7e9db177bf8acb0e951c24940bf866cb313f"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
+"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
+"checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e2f0c90a5f3459330ac8bc0d2f879c693bb7a2f59689c1083fc4ef83834da865"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
@@ -2721,6 +2929,7 @@ dependencies = [
 "checksum tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1d14b10654be682ac43efee27401d792507e30fd8d26389e1da3b185de2e4119"
 "checksum tokio-timer 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "f2106812d500ed25a4f38235b9cae8f78a09edf43203e16e59c3b769a342a60e"
 "checksum tokio-udp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "66268575b80f4a4a710ef83d087fdfeeabdce9b74c797535fbac18a2cb906e92"
+"checksum toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "758664fc71a3a69038656bee8b6be6477d2a6c315a6b81f7081f591bffa4111f"
 "checksum trust-dns-proto 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5559ebdf6c2368ddd11e20b11d6bbaf9e46deb803acd7815e93f5a7b4a6d2901"
 "checksum trust-dns-resolver 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6c9992e58dba365798803c0b91018ff6c8d3fc77e06977c4539af2a6bfe0a039"
 "checksum typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "612d636f949607bdf9b123b4a6f6d966dedf3ff669f7f045890d3a4a73948169"
@@ -2734,6 +2943,7 @@ dependencies = [
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 "checksum untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "55cd1f4b4e96b46aeb8d4855db4a7a9bd96eeeb5c6a1ab54593328761642ce2f"
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
+"checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
 "checksum utf8-ranges 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "9d50aa7650df78abf942826607c62468ce18d9019673d4a2ebe1865dbb96ffde"
 "checksum uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "90dbc611eb48397705a6b0f6e917da23ae517e4d127123d2cf7674206627d32a"
 "checksum v_escape 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8865501b78eef9193c1b45486acf18ba889e5662eba98854d6fc59d8ecf3542d"
@@ -2752,3 +2962,4 @@ dependencies = [
 "checksum winreg 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73f1f3c6c4d3cab118551b96c476a2caab920701e28875b64a458f2ecb96ec9d"
 "checksum winutil 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7daf138b6b14196e3830a588acf1e86966c694d3e8fb026fb105b8b5dca07e6e"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
+"checksum yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "65923dd1784f44da1d2c3dbbc5e822045628c590ba72123e1c73d3c230c4434d"

server/Cargo.toml

@@ -30,3 +30,5 @@ lettre_email = "0.9.2"
 rust-crypto = "^0.2"
 rss = "1.8.0"
 htmlescape = "0.3.1"
+config = "0.9.3"
+hjson = "0.8.2"

server/config/defaults.hjson

@@ -0,0 +1,27 @@
+{
+  database: {
+      user: "lemmy"
+      password: "password"
+      host: "localhost"
+      port: 5432
+      database: "lemmy"
+    }
+  hostname: "rrr"
+  bind: "0.0.0.0"
+  port: 8536
+  jwt_secret: "changeme"
+  rate_limit: {
+    message: 30,
+    message_per_second: 60,
+    post: 6,
+    post_per_second: 600,
+    register: 3,
+    register_per_second: 3600,
+  }
+#  email: {
+#    smtp_server: ""
+#    smtp_login: ""
+#    smtp_password: ""
+#    smtp_from_address: ""
+#  }
+}

server/src/api/mod.rs

@@ -15,7 +15,7 @@ use crate::db::user_mention::*;
 use crate::db::user_mention_view::*;
 use crate::db::user_view::*;
 use crate::db::*;
-use crate::{extract_usernames, has_slurs, naive_from_unix, naive_now, remove_slurs, Settings};
+use crate::{extract_usernames, has_slurs, naive_from_unix, naive_now, remove_slurs};
 use failure::Error;
 use serde::{Deserialize, Serialize};
 

server/src/api/user.rs

@@ -1,4 +1,5 @@
 use super::*;
+use crate::settings::Settings;
 use crate::{generate_random_string, send_email};
 use bcrypt::verify;
 use std::str::FromStr;
@@ -217,7 +218,7 @@ impl Perform<LoginResponse> for Oper<Register> {
     // Register the new user
     let user_form = UserForm {
       name: data.username.to_owned(),
-      fedi_name: Settings::get().hostname.into(),
+      fedi_name: Settings::get().hostname.to_owned(),
       email: data.email.to_owned(),
       password_encrypted: data.password.to_owned(),
       preferred_username: None,

server/src/db/mod.rs

@@ -1,4 +1,4 @@
-use crate::Settings;
+use crate::settings::Settings;
 use diesel::dsl::*;
 use diesel::result::Error;
 use diesel::*;
@@ -110,7 +110,7 @@ impl<T> MaybeOptional<T> for Option<T> {
 }
 
 pub fn establish_connection() -> PgConnection {
-  let db_url = Settings::get().db_url;
+  let db_url = Settings::get().get_database_url();
   PgConnection::establish(&db_url).expect(&format!("Error connecting to {}", db_url))
 }
 

server/src/feeds.rs

@@ -331,7 +331,7 @@ fn create_post_items(posts: Vec<PostView>) -> Vec<Item> {
         "/c/{} <a href=\"{}\">(link)</a>",
         p.community_name, community_url
       ))
-      .domain(Settings::get().hostname)
+      .domain(Settings::get().hostname.to_owned())
       .build();
     i.categories(vec![category.unwrap()]);
 

server/src/lib.rs

@@ -28,11 +28,12 @@ pub mod db;
 pub mod feeds;
 pub mod nodeinfo;
 pub mod schema;
+pub mod settings;
 pub mod version;
 pub mod websocket;
 
+use crate::settings::Settings;
 use chrono::{DateTime, NaiveDateTime, Utc};
-use dotenv::dotenv;
 use lettre::smtp::authentication::{Credentials, Mechanism};
 use lettre::smtp::extension::ClientId;
 use lettre::smtp::ConnectionReuseParameters;
@@ -41,87 +42,6 @@ use lettre_email::Email;
 use rand::distributions::Alphanumeric;
 use rand::{thread_rng, Rng};
 use regex::Regex;
-use std::env;
-use std::net::IpAddr;
-
-pub struct Settings {
-  pub db_url: String,
-  pub hostname: String,
-  pub bind: IpAddr,
-  pub port: u16,
-  pub jwt_secret: String,
-  pub rate_limit_message: i32,
-  pub rate_limit_message_per_second: i32,
-  pub rate_limit_post: i32,
-  pub rate_limit_post_per_second: i32,
-  pub rate_limit_register: i32,
-  pub rate_limit_register_per_second: i32,
-  pub email_config: Option<EmailConfig>,
-}
-
-pub struct EmailConfig {
-  smtp_server: String,
-  smtp_login: String,
-  smtp_password: String,
-  smtp_from_address: String,
-}
-
-impl Settings {
-  pub fn get() -> Self {
-    dotenv().ok();
-
-    let email_config =
-      if env::var("SMTP_SERVER").is_ok() && !env::var("SMTP_SERVER").unwrap().eq("") {
-        Some(EmailConfig {
-          smtp_server: env::var("SMTP_SERVER").expect("SMTP_SERVER must be set"),
-          smtp_login: env::var("SMTP_LOGIN").expect("SMTP_LOGIN must be set"),
-          smtp_password: env::var("SMTP_PASSWORD").expect("SMTP_PASSWORD must be set"),
-          smtp_from_address: env::var("SMTP_FROM_ADDRESS").expect("SMTP_FROM_ADDRESS must be set"),
-        })
-      } else {
-        None
-      };
-
-    Settings {
-      db_url: env::var("DATABASE_URL").expect("DATABASE_URL must be set"),
-      hostname: env::var("HOSTNAME").unwrap_or("rrr".to_string()),
-      bind: env::var("BIND")
-        .unwrap_or("0.0.0.0".to_string())
-        .parse()
-        .unwrap(),
-      port: env::var("PORT")
-        .unwrap_or("8536".to_string())
-        .parse()
-        .unwrap(),
-      jwt_secret: env::var("JWT_SECRET").unwrap_or("changeme".to_string()),
-      rate_limit_message: env::var("RATE_LIMIT_MESSAGE")
-        .unwrap_or("30".to_string())
-        .parse()
-        .unwrap(),
-      rate_limit_message_per_second: env::var("RATE_LIMIT_MESSAGE_PER_SECOND")
-        .unwrap_or("60".to_string())
-        .parse()
-        .unwrap(),
-      rate_limit_post: env::var("RATE_LIMIT_POST")
-        .unwrap_or("3".to_string())
-        .parse()
-        .unwrap(),
-      rate_limit_post_per_second: env::var("RATE_LIMIT_POST_PER_SECOND")
-        .unwrap_or("600".to_string())
-        .parse()
-        .unwrap(),
-      rate_limit_register: env::var("RATE_LIMIT_REGISTER")
-        .unwrap_or("1".to_string())
-        .parse()
-        .unwrap(),
-      rate_limit_register_per_second: env::var("RATE_LIMIT_REGISTER_PER_SECOND")
-        .unwrap_or("3600".to_string())
-        .parse()
-        .unwrap(),
-      email_config,
-    }
-  }
-}
 
 pub fn to_datetime_utc(ndt: NaiveDateTime) -> DateTime<Utc> {
   DateTime::<Utc>::from_utc(ndt, Utc)
@@ -171,13 +91,13 @@ pub fn send_email(
   to_username: &str,
   html: &str,
 ) -> Result<(), String> {
-  let email_config = Settings::get().email_config.ok_or("no_email_setup")?;
+  let email_config = Settings::get().email.as_ref().ok_or("no_email_setup")?;
 
   let email = Email::builder()
     .to((to_email, to_username))
     .from((
       email_config.smtp_login.to_owned(),
-      email_config.smtp_from_address,
+      email_config.smtp_from_address.to_owned(),
     ))
     .subject(subject)
     .html(html)

server/src/main.rs

@@ -10,8 +10,8 @@ use lemmy_server::apub;
 use lemmy_server::db::establish_connection;
 use lemmy_server::feeds;
 use lemmy_server::nodeinfo;
+use lemmy_server::settings::Settings;
 use lemmy_server::websocket::server::*;
-use lemmy_server::Settings;
 use std::env;
 use std::time::{Duration, Instant};
 

server/src/settings.rs

@@ -0,0 +1,104 @@
+extern crate lazy_static;
+use config::{Config, ConfigError, Environment, File};
+use serde::Deserialize;
+use std::env;
+use std::net::IpAddr;
+
+static CONFIG_FILE_DEFAULTS: &str = "config/defaults.hjson";
+static CONFIG_FILE_COSTUMIZED: &str = "config/custom.hjson";
+
+#[derive(Debug, Deserialize)]
+pub struct Settings {
+  pub database: Database,
+  pub hostname: String,
+  pub bind: IpAddr,
+  pub port: u16,
+  pub jwt_secret: String,
+  pub rate_limit: RateLimitConfig,
+  pub email: Option<EmailConfig>,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct RateLimitConfig {
+  pub message: i32,
+  pub message_per_second: i32,
+  pub post: i32,
+  pub post_per_second: i32,
+  pub register: i32,
+  pub register_per_second: i32,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct EmailConfig {
+  pub smtp_server: String,
+  pub smtp_login: String,
+  pub smtp_password: String,
+  pub smtp_from_address: String,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct Database {
+  pub user: String,
+  pub password: String,
+  pub host: String,
+  pub port: i32,
+  pub database: String,
+}
+
+lazy_static! {
+  static ref SETTINGS: Settings = {
+    return match Settings::init() {
+      Ok(c) => c,
+      Err(e) => panic!("{}", e),
+    };
+  };
+}
+
+impl Settings {
+  
+  /// Reads config from the files and environment.
+  /// First, defaults are loaded from CONFIG_FILE_DEFAULTS, then these values can be overwritten
+  /// from CONFIG_FILE_COSTUMIZED (optional). Finally, values from the environment
+  /// (with prefix LEMMY) are added to the config.
+  fn init() -> Result<Self, ConfigError> {
+    let mut s = Config::new();
+
+    // Start off by merging in the "default" configuration file
+    s.merge(File::with_name(CONFIG_FILE_DEFAULTS))?;
+
+    // TODO: we could also automatically load dev/prod configs based on environment
+    // https://github.com/mehcode/config-rs/blob/master/examples/hierarchical-env/src/settings.rs#L49
+    s.merge(File::with_name(CONFIG_FILE_COSTUMIZED).required(false))?;
+
+    // Add in settings from the environment (with a prefix of LEMMY)
+    // Eg.. `LEMMY_DEBUG=1 ./target/app` would set the `debug` key
+    s.merge(Environment::with_prefix("LEMMY"))?;
+
+    return s.try_into();
+  }
+
+  /// Returns the config as a struct.
+  pub fn get() -> &'static Self {
+    &SETTINGS
+  }
+
+  /// Returns the postgres connection url. If LEMMY_DATABASE_URL is set, that is used,
+  /// otherwise the connection url is generated from the config.
+  pub fn get_database_url(&self) -> String {
+    match env::var("LEMMY_DATABASE_URL") {
+      Ok(url) => url,
+      Err(_) => format!(
+        "postgres://{}:{}@{}:{}/{}",
+        self.database.user,
+        self.database.password,
+        self.database.host,
+        self.database.port,
+        self.database.database
+      ),
+    }
+  }
+
+  pub fn api_endpoint(&self) -> String {
+    format!("{}/api/v1", self.hostname)
+  }
+}

server/src/websocket/server.rs

@@ -152,24 +152,24 @@ impl ChatServer {
   fn check_rate_limit_register(&mut self, id: usize) -> Result<(), Error> {
     self.check_rate_limit_full(
       id,
-      Settings::get().rate_limit_register,
+      Settings::get().rate_limit.register,
-      Settings::get().rate_limit_register_per_second,
+      Settings::get().rate_limit.register_per_second,
     )
   }
 
   fn check_rate_limit_post(&mut self, id: usize) -> Result<(), Error> {
     self.check_rate_limit_full(
       id,
-      Settings::get().rate_limit_post,
+      Settings::get().rate_limit.post,
-      Settings::get().rate_limit_post_per_second,
+      Settings::get().rate_limit.post_per_second,
     )
   }
 
   fn check_rate_limit_message(&mut self, id: usize) -> Result<(), Error> {
     self.check_rate_limit_full(
       id,
-      Settings::get().rate_limit_message,
+      Settings::get().rate_limit.message,
-      Settings::get().rate_limit_message_per_second,
+      Settings::get().rate_limit.message_per_second,
     )
   }