feat(oidc): Implement initial OIDC actor

Implements an actor that can perform OAuth2 logins (not really
OIDC-compliant yet because Rust doesn't have an easy to use JWT
library that supports JWKS, and I don't have time for that right now).

Currently this hardcodes some Office365-specific stuff.

Cargo.lock

@@ -78,6 +78,11 @@ dependencies = [
  "version_check 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "adler32"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "aho-corasick"
 version = "0.6.4"
@@ -190,6 +195,11 @@ dependencies = [
  "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "build_const"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bytecount"
 version = "0.2.0"
@@ -252,12 +262,18 @@ dependencies = [
  "diesel 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "frank_jwt 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.11.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "r2d2 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "reqwest 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "tera 0.11.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -271,6 +287,31 @@ dependencies = [
  "url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "core-foundation"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crc"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "build_const 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.1.2"
@@ -449,6 +490,14 @@ name = "encoding_index_tests"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "encoding_rs"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "env_logger"
 version = "0.5.6"
@@ -518,6 +567,31 @@ name = "fnv"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "foreign-types-shared 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "frank_jwt"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "fuchsia-zircon"
 version = "0.3.3"
@@ -614,6 +688,44 @@ dependencies = [
  "quick-error 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hyper"
+version = "0.11.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httparse 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "relay 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-proto 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.11.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "idna"
 version = "0.1.4"
@@ -694,11 +806,29 @@ name = "libc"
 version = "0.2.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "libflate"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "adler32 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crc 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "linked-hash-map"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "log"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "log"
 version = "0.4.1"
@@ -804,6 +934,20 @@ dependencies = [
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.1.5"
+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)",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "schannel 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "net2"
 version = "0.2.32"
@@ -840,6 +984,29 @@ dependencies = [
  "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "openssl"
+version = "0.9.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.28 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "owning_ref"
 version = "0.3.3"
@@ -923,6 +1090,11 @@ dependencies = [
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "pq-sys"
 version = "0.4.4"
@@ -1064,6 +1236,14 @@ dependencies = [
  "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "relay"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.0"
@@ -1072,6 +1252,30 @@ dependencies = [
  "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "reqwest"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "encoding_rs 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.11.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper-tls 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libflate 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime_guess 2.0.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_urlencoded 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "resolv-conf"
 version = "0.6.0"
@@ -1112,6 +1316,15 @@ dependencies = [
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "schannel"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "scheduled-thread-pool"
 version = "0.2.0"
@@ -1130,6 +1343,26 @@ name = "scopeguard"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "security-framework"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "core-foundation 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "semver"
 version = "0.8.0"
@@ -1216,6 +1449,11 @@ dependencies = [
  "walkdir 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "slab"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "slab"
 version = "0.4.0"
@@ -1229,6 +1467,11 @@ dependencies = [
  "unidecode 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "smallvec"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "smallvec"
 version = "0.6.0"
@@ -1301,6 +1544,11 @@ dependencies = [
  "syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "take"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "tempdir"
 version = "0.3.7"
@@ -1418,6 +1666,23 @@ dependencies = [
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-proto"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "net2 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "take 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-reactor"
 version = "0.1.1"
@@ -1431,6 +1696,14 @@ dependencies = [
  "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-service"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-signal"
 version = "0.1.5"
@@ -1480,6 +1753,17 @@ dependencies = [
  "tokio-executor 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-tls"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-udp"
 version = "0.1.0"
@@ -1599,11 +1883,28 @@ dependencies = [
  "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "url_serde"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "utf8-ranges"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "uuid"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "uuid"
 version = "0.6.2"
@@ -1709,6 +2010,7 @@ dependencies = [
 "checksum actix 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "29d85dc76d055498ef65ecf556df154393f94f55d325a05be20c676432536ce7"
 "checksum actix-web 0.5.0-dev (git+https://github.com/actix/actix-web.git)" = "<none>"
 "checksum actix_derive 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c4b1dc922654b9aca7a8a31eab875fde804fa9fbd67f220f2e457787b23590f2"
+"checksum adler32 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6cbd0b9af8587c72beadc9f72d35b9fbb070982c9e6203e46e93f10df25f8f45"
 "checksum aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d6531d44de723825aa81398a6415283229725a00fa30713812ab9323faa82fc4"
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
 "checksum arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a1e964f9e24d588183fcb43503abda40d288c8657dfc27311516ce2f05675aef"
@@ -1722,6 +2024,7 @@ dependencies = [
 "checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
 "checksum brotli-sys 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4445dea95f4c2b41cde57cc9fee236ae4dbae88d8fcbdb4750fc1bb5d86aaecd"
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 "checksum tokio-executor 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8cac2a7883ff3567e9d66bb09100d09b33d90311feca0206c7ca034bc0c55113"
 "checksum tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "6af9eb326f64b2d6b68438e1953341e00ab3cf54de7e35d92bfc73af8555313a"
+"checksum tokio-proto 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8fbb47ae81353c63c487030659494b295f6cb6576242f907f203473b191b0389"
 "checksum tokio-reactor 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3cedc8e5af5131dc3423ffa4f877cce78ad25259a9a62de0613735a13ebc64b"
+"checksum tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "24da22d077e0f15f55162bdbdc661228c1581892f52074fb242678d015b45162"
 "checksum tokio-signal 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e8f46863230f9a05cf52d173721ec391b9c5782a2465f593029922b8782b9ffe"
 "checksum tokio-tcp 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ec9b094851aadd2caf83ba3ad8e8c4ce65a42104f7b94d9e6550023f0407853f"
 "checksum tokio-threadpool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3d05cdd6a78005e535d2b27c21521bdf91fbb321027a62d8e178929d18966d"
 "checksum tokio-timer 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "29a89e4ad0c8f1e4c9860e605c38c69bfdad3cccd4ea446e58ff588c1c07a397"
+"checksum tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "772f4b04e560117fe3b0a53e490c16ddc8ba6ec437015d91fa385564996ed913"
 "checksum tokio-udp 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "137bda266504893ac4774e0ec4c2108f7ccdbcb7ac8dced6305fe9e4e0b5041a"
 "checksum trust-dns-proto 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0266cdf22b1f3904d21252e71079395bc47836513d4f3888ff85b57a6add2227"
 "checksum trust-dns-resolver 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "87cff716794d5ab064957bb78fc5575a38337571917ddd86fc2fed52dc48b141"
@@ -1886,7 +2215,9 @@ dependencies = [
 "checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f392d7819dbe58833e26872f5f6f0d68b7bbbe90fc3667e98731c4a15ad9a7ae"
 "checksum url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f808aadd8cfec6ef90e4a14eb46f24511824d1ac596b9682703c87056c8678b7"
+"checksum url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "74e7d099f1ee52f823d4bdd60c93c3602043c728f5db3b97bdb548467f7bddea"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
+"checksum uuid 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcc7e3b898aa6f6c08e5295b6c89258d1331e9ac578cc992fb818759951bdc22"
 "checksum uuid 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d4670e1e935f7edd193a413f802e2ee52274aed62a09ccaab1656515c9c53a66"
 "checksum vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9e0a7d8bed3178a8fb112199d466eeca9ed09a14ba8ad67718179b4fd5487d0b"
 "checksum version_check 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6b772017e347561807c1aa192438c5fd74242a670a6cffacc40f2defd1dc069d"

Cargo.toml

@@ -16,3 +16,9 @@ tera = "0.11"
 serde = "1.0"
 serde_derive = "1.0"
 failure = "*"
+url = "1.7"
+url_serde = "0.2"
+reqwest = "0.8"
+frank_jwt = "3.0"
+serde_json = "1.0"
+hyper = "*"

src/errors.rs

@@ -11,6 +11,7 @@ use actix_web::http::StatusCode;
 use actix;
 use diesel;
 use r2d2;
+use reqwest;
 use tera;
 
 pub type Result<T> = result::Result<T, ConverseError>;
@@ -64,6 +65,14 @@ impl From<actix::MailboxError> for ConverseError {
     }
 }
 
+impl From<reqwest::Error> for ConverseError {
+    fn from(error: reqwest::Error) -> ConverseError {
+        ConverseError::InternalError {
+            reason: format!("Failed to make HTTP request: {}", error),
+        }
+    }
+}
+
 // Support conversion of error type into HTTP error responses:
 
 impl ResponseError for ConverseError {

src/main.rs

@@ -13,14 +13,20 @@ extern crate serde_derive;
 #[macro_use]
 extern crate failure;
 
-extern crate chrono;
 extern crate actix;
 extern crate actix_web;
+extern crate chrono;
 extern crate env_logger;
-extern crate r2d2;
 extern crate futures;
+extern crate r2d2;
+extern crate reqwest;
 extern crate serde;
+extern crate url;
+extern crate url_serde;
+extern crate serde_json;
+extern crate hyper;
 
+pub mod oidc;
 pub mod db;
 pub mod errors;
 pub mod handlers;

src/oidc.rs

@@ -0,0 +1,135 @@
+//! This module provides authentication via OIDC compliant
+//! authentication sources.
+//!
+//! Currently Converse only supports a single OIDC provider. Note that
+//! this has so far only been tested with Office365.
+
+use actix::prelude::*;
+use reqwest;
+use url::Url;
+use url_serde;
+use errors::*;
+use reqwest::header::Authorization;
+use hyper::header::Bearer;
+
+/// This structure represents the contents of an OIDC discovery
+/// document.
+#[derive(Deserialize, Debug, Clone)]
+pub struct OidcConfig {
+    #[serde(with = "url_serde")]
+    authorization_endpoint: Url,
+    token_endpoint: String,
+    userinfo_endpoint: String,
+
+    scopes_supported: Vec<String>,
+    issuer: String,
+}
+
+#[derive(Clone, Debug)]
+pub struct OidcExecutor {
+    pub client_id: String,
+    pub client_secret: String,
+    pub redirect_uri: String,
+    pub oidc_config: OidcConfig,
+}
+
+/// This struct represents the form response returned by an OIDC
+/// provider with the `code`.
+#[derive(Debug, Deserialize)]
+pub struct CodeResponse {
+    pub code: String,
+}
+
+/// This struct represents the data extracted from the ID token and
+/// stored in the user's session.
+#[derive(Debug)]
+pub struct Author {
+    pub name: String,
+    pub email: String,
+}
+
+impl Actor for OidcExecutor {
+    type Context = Context<Self>;
+}
+
+/// Message used to request the login URL:
+pub struct GetLoginUrl; // TODO: Add a nonce parameter stored in session.
+
+impl Message for GetLoginUrl {
+    type Result = String;
+}
+
+impl Handler<GetLoginUrl> for OidcExecutor {
+    type Result = String;
+
+    fn handle(&mut self, _: GetLoginUrl, _: &mut Self::Context) -> Self::Result {
+        let mut url: Url = self.oidc_config.authorization_endpoint.clone();
+        {
+            let mut params = url.query_pairs_mut();
+            params.append_pair("client_id", &self.client_id);
+            params.append_pair("response_type", "code");
+            params.append_pair("scope", "openid");
+            params.append_pair("redirect_uri", &self.redirect_uri);
+            params.append_pair("response_mode", "form_post");
+        }
+        return url.into_string();
+    }
+}
+
+/// Message used to request the token from the returned code and
+/// retrieve userinfo from the appropriate endpoint.
+pub struct RetrieveToken(pub CodeResponse);
+
+impl Message for RetrieveToken {
+    type Result = Result<Author>;
+}
+
+#[derive(Debug, Deserialize)]
+struct TokenResponse {
+    access_token: String,
+}
+
+// TODO: This is currently hardcoded to Office365 fields.
+#[derive(Debug, Deserialize)]
+struct Userinfo {
+    name: String,
+    unique_name: String, // email in office365
+}
+
+impl Handler<RetrieveToken> for OidcExecutor {
+    type Result = Result<Author>;
+
+    fn handle(&mut self, msg: RetrieveToken, _: &mut Self::Context) -> Self::Result {
+        debug!("Received OAuth2 code, requesting access_token");
+        let client = reqwest::Client::new();
+        let params: [(&str, &str); 5] = [
+            ("client_id", &self.client_id),
+            ("client_secret", &self.client_secret),
+            ("grant_type", "authorization_code"),
+            ("code", &msg.0.code),
+            ("redirect_uri", &self.redirect_uri),
+        ];
+
+        let response: TokenResponse = client.post(&self.oidc_config.token_endpoint)
+            .form(&params)
+            .send()?
+            .json()?;
+
+        let user: Userinfo = client.get(&self.oidc_config.userinfo_endpoint)
+            .header(Authorization(Bearer { token: response.access_token }))
+            .send()?
+            .json()?;
+
+        Ok(Author {
+            name: user.name,
+            email: user.unique_name,
+        })
+    }
+}
+
+/// Convenience function to attempt loading an OIDC discovery document
+/// from a specified URL:
+pub fn load_oidc(url: &str) -> Result<OidcConfig> {
+    let config: OidcConfig = reqwest::get(url)?.json()?;
+    Ok(config)
+}