Mercurial > prosody-modules
annotate mod_http_oauth2/mod_http_oauth2.lua @ 5208:aaa64c647e12
mod_http_oauth2: Add authentication, consent and error pages
author | Matthew Wild <mwild1@gmail.com> |
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date | Mon, 06 Mar 2023 09:46:58 +0000 |
parents | c72e3b0914e8 |
children | 942f8a2f722d |
rev | line source |
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1 local hashes = require "util.hashes"; |
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2 local cache = require "util.cache"; |
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3 local http = require "util.http"; |
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4 local jid = require "util.jid"; |
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5 local json = require "util.json"; |
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6 local usermanager = require "core.usermanager"; |
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7 local errors = require "util.error"; |
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8 local url = require "socket.url"; |
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9 local uuid = require "util.uuid"; |
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10 local encodings = require "util.encodings"; |
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11 local base64 = encodings.base64; |
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12 local random = require "util.random"; |
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13 local schema = require "util.jsonschema"; |
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14 local jwt = require"util.jwt"; |
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15 local it = require "util.iterators"; |
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16 local array = require "util.array"; |
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17 local st = require "util.stanza"; |
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18 |
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19 local function read_file(base_path, fn, required) |
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20 local f, err = io.open(base_path .. "/" .. fn); |
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21 if not f then |
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22 module:log(required and "error" or "debug", "Unable to load template file: %s", err); |
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23 if required then |
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24 return error("Failed to load templates"); |
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25 end |
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26 return nil; |
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27 end |
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28 local data = assert(f:read("*a")); |
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29 assert(f:close()); |
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30 return data; |
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31 end |
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32 |
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33 local template_path = module:get_option_path("oauth2_template_path", "html"); |
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34 local templates = { |
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35 login = read_file(template_path, "login.html", true); |
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36 consent = read_file(template_path, "consent.html", true); |
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37 error = read_file(template_path, "error.html", true); |
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38 css = read_file(template_path, "style.css"); |
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39 js = read_file(template_path, "script.js"); |
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40 }; |
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41 |
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42 local site_name = module:get_option_string("site_name", module.host); |
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43 |
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44 local _render_html = require"util.interpolation".new("%b{}", st.xml_escape); |
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45 local function render_page(template, data, sensitive) |
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46 data = data or {}; |
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47 data.site_name = site_name; |
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48 local resp = { |
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49 code = 200; |
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50 headers = { |
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51 ["Content-Type"] = "text/html; charset=utf-8"; |
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52 ["Content-Security-Policy"] = "default-src 'self'"; |
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53 ["X-Frame-Options"] = "DENY"; |
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54 ["Cache-Control"] = (sensitive and "no-store" or "no-cache")..", private"; |
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55 }; |
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56 body = _render_html(template, data); |
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57 }; |
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58 return resp; |
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59 end |
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60 |
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61 local tokens = module:depends("tokenauth"); |
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62 |
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63 -- Used to derive client_secret from client_id, set to enable stateless dynamic registration. |
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64 local registration_key = module:get_option_string("oauth2_registration_key"); |
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65 local registration_algo = module:get_option_string("oauth2_registration_algorithm", "HS256"); |
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66 local registration_options = module:get_option("oauth2_registration_options", { default_ttl = 60 * 60 * 24 * 90 }); |
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67 |
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68 local verification_key; |
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69 local jwt_sign, jwt_verify; |
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70 if registration_key then |
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71 -- Tie it to the host if global |
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72 verification_key = hashes.hmac_sha256(registration_key, module.host); |
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73 jwt_sign, jwt_verify = jwt.init(registration_algo, registration_key, registration_key, registration_options); |
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74 end |
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75 |
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76 local function filter_scopes(username, host, requested_scope_string) |
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77 if host ~= module.host then |
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78 return usermanager.get_jid_role(username.."@"..host, module.host).name; |
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79 end |
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80 |
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81 if requested_scope_string then -- Specific role requested |
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82 -- TODO: The requested scope string is technically a space-delimited list |
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83 -- of scopes, but for simplicity we're mapping this slot to role names. |
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84 if usermanager.user_can_assume_role(username, module.host, requested_scope_string) then |
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85 return requested_scope_string; |
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86 end |
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87 end |
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88 |
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89 return usermanager.get_user_role(username, module.host).name; |
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90 end |
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91 |
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92 local function code_expires_in(code) |
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93 return os.difftime(os.time(), code.issued); |
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94 end |
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95 |
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96 local function code_expired(code) |
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97 return code_expires_in(code) > 120; |
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98 end |
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99 |
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100 local codes = cache.new(10000, function (_, code) |
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101 return code_expired(code) |
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102 end); |
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103 |
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104 module:add_timer(900, function() |
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105 local k, code = codes:tail(); |
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106 while code and code_expired(code) do |
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107 codes:set(k, nil); |
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108 k, code = codes:tail(); |
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109 end |
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110 return code and code_expires_in(code) + 1 or 900; |
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111 end) |
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112 |
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113 local function get_issuer() |
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114 return (module:http_url(nil, "/"):gsub("/$", "")); |
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115 end |
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116 |
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117 local function oauth_error(err_name, err_desc) |
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118 return errors.new({ |
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119 type = "modify"; |
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120 condition = "bad-request"; |
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121 code = err_name == "invalid_client" and 401 or 400; |
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122 text = err_desc and (err_name..": "..err_desc) or err_name; |
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123 extra = { oauth2_response = { error = err_name, error_description = err_desc } }; |
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124 }); |
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125 end |
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126 |
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127 local function new_access_token(token_jid, scope, ttl) |
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128 local token = tokens.create_jid_token(token_jid, token_jid, scope, ttl, nil, "oauth2"); |
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129 return { |
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130 token_type = "bearer"; |
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131 access_token = token; |
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132 expires_in = ttl; |
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133 scope = scope; |
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134 -- TODO: include refresh_token when implemented |
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135 }; |
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136 end |
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137 |
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138 local function get_redirect_uri(client, query_redirect_uri) -- record client, string : string |
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139 for _, redirect_uri in ipairs(client.redirect_uris) do |
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140 if query_redirect_uri == nil or query_redirect_uri == redirect_uri then |
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141 return redirect_uri |
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142 end |
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143 end |
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144 end |
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145 |
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146 local grant_type_handlers = {}; |
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147 local response_type_handlers = {}; |
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148 |
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149 function grant_type_handlers.password(params) |
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150 local request_jid = assert(params.username, oauth_error("invalid_request", "missing 'username' (JID)")); |
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151 local request_password = assert(params.password, oauth_error("invalid_request", "missing 'password'")); |
3919
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152 local request_username, request_host, request_resource = jid.prepped_split(request_jid); |
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153 |
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154 if not (request_username and request_host) or request_host ~= module.host then |
3903
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155 return oauth_error("invalid_request", "invalid JID"); |
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156 end |
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157 if not usermanager.test_password(request_username, request_host, request_password) then |
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158 return oauth_error("invalid_grant", "incorrect credentials"); |
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159 end |
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160 |
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161 local granted_jid = jid.join(request_username, request_host, request_resource); |
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|
162 local granted_scopes = filter_scopes(request_username, request_host, params.scope); |
4340
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163 return json.encode(new_access_token(granted_jid, granted_scopes, nil)); |
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164 end |
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|
165 |
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|
166 function response_type_handlers.code(client, params, granted_jid) |
5191
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|
167 local request_username, request_host = jid.split(granted_jid); |
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168 local granted_scopes = filter_scopes(request_username, request_host, params.scope); |
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169 |
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170 local code = uuid.generate(); |
4670
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|
171 local ok = codes:set(params.client_id .. "#" .. code, { |
4340
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|
172 issued = os.time(); |
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173 granted_jid = granted_jid; |
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|
174 granted_scopes = granted_scopes; |
4670
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diff
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|
175 }); |
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|
176 if not ok then |
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|
177 return {status_code = 429}; |
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|
178 end |
4256
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|
179 |
5193
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|
180 local redirect_uri = get_redirect_uri(client, params.redirect_uri); |
5188
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diff
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|
181 if redirect_uri == "urn:ietf:wg:oauth:2.0:oob" then |
7c531137a553
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5187
diff
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|
182 -- TODO some nicer template page |
5206
31c62df82aa8
mod_http_oauth2: Clarify comment referencing mod_http_errors (thanks MattJ)
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parents:
5205
diff
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|
183 -- mod_http_errors will set content-type to text/html if it catches this |
31c62df82aa8
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5205
diff
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|
184 -- event, if not text/plain is kept for the fallback text. |
5188
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diff
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|
185 local response = { status_code = 200; headers = { content_type = "text/plain" } } |
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diff
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|
186 response.body = module:context("*"):fire_event("http-message", { |
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|
187 response = response; |
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|
188 title = "Your authorization code"; |
5195
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5194
diff
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|
189 message = "Here's your authorization code, copy and paste it into " .. (client.client_name or "your client"); |
5188
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|
190 extra = code; |
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diff
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|
191 }) or ("Here's your authorization code:\n%s\n"):format(code); |
5190
1733f184e2bb
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parents:
5189
diff
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|
192 return response; |
5188
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|
193 end |
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|
194 |
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|
195 local redirect = url.parse(redirect_uri); |
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|
196 |
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|
197 local query = http.formdecode(redirect.query or ""); |
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|
198 if type(query) ~= "table" then query = {}; end |
5192
03aa9baa9ac3
mod_http_oauth2: Add support for 'iss' authz response parameter (RFC 9207)
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5191
diff
changeset
|
199 table.insert(query, { name = "code", value = code }); |
5207
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5206
diff
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|
200 table.insert(query, { name = "iss", value = get_issuer() }); |
4256
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|
201 if params.state then |
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diff
changeset
|
202 table.insert(query, { name = "state", value = params.state }); |
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|
203 end |
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|
204 redirect.query = http.formencode(query); |
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|
205 |
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|
206 return { |
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|
207 status_code = 302; |
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|
208 headers = { |
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|
209 location = url.build(redirect); |
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diff
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|
210 }; |
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|
211 } |
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|
212 end |
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|
213 |
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|
214 -- Implicit flow |
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|
215 function response_type_handlers.token(client, params, granted_jid) |
5193
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|
216 local request_username, request_host = jid.split(granted_jid); |
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|
217 local granted_scopes = filter_scopes(request_username, request_host, params.scope); |
5186
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diff
changeset
|
218 local token_info = new_access_token(granted_jid, granted_scopes, nil); |
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219 |
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220 local redirect = url.parse(get_redirect_uri(client, params.redirect_uri)); |
5186
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221 token_info.state = params.state; |
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222 redirect.fragment = http.formencode(token_info); |
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223 |
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224 return { |
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225 status_code = 302; |
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226 headers = { |
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227 location = url.build(redirect); |
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228 }; |
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229 } |
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230 end |
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231 |
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232 local function make_secret(client_id) --> client_secret |
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233 return hashes.hmac_sha256(verification_key, client_id, true); |
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234 end |
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235 |
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236 local function verify_secret(client_id, client_secret) |
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237 return hashes.equals(make_secret(client_id), client_secret); |
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238 end |
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239 |
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240 function grant_type_handlers.authorization_code(params) |
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241 if not params.client_id then return oauth_error("invalid_request", "missing 'client_id'"); end |
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242 if not params.client_secret then return oauth_error("invalid_request", "missing 'client_secret'"); end |
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243 if not params.code then return oauth_error("invalid_request", "missing 'code'"); end |
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244 if params.scope and params.scope ~= "" then |
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245 return oauth_error("invalid_scope", "unknown scope requested"); |
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246 end |
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247 |
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248 local client = jwt_verify(params.client_id); |
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249 if not client then |
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250 return oauth_error("invalid_client", "incorrect credentials"); |
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251 end |
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252 |
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253 if not verify_secret(params.client_id, params.client_secret) then |
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254 module:log("debug", "client_secret mismatch"); |
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255 return oauth_error("invalid_client", "incorrect credentials"); |
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256 end |
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257 local code, err = codes:get(params.client_id .. "#" .. params.code); |
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258 if err then error(err); end |
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259 if not code or type(code) ~= "table" or code_expired(code) then |
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260 module:log("debug", "authorization_code invalid or expired: %q", code); |
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261 return oauth_error("invalid_client", "incorrect credentials"); |
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262 end |
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263 |
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264 return json.encode(new_access_token(code.granted_jid, code.granted_scopes, nil)); |
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265 end |
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266 |
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267 -- Used to issue/verify short-lived tokens for the authorization process below |
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268 local new_user_token, verify_user_token = jwt.init("HS256", random.bytes(32), nil, { default_ttl = 600 }); |
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269 |
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270 -- From the given request, figure out if the user is authenticated and has granted consent yet |
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271 -- As this requires multiple steps (seek credentials, seek consent), we have a lot of state to |
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272 -- carry around across requests. We also need to protect against CSRF and session mix-up attacks |
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273 -- (e.g. the user may have multiple concurrent flows in progress, session cookies aren't unique |
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274 -- to one of them). |
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275 -- Our strategy here is to preserve the original query string (containing the authz request), and |
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276 -- encode the rest of the flow in form POSTs. |
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277 local function get_auth_state(request) |
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278 local form = request.method == "POST" |
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279 and request.body |
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280 and #request.body > 0 |
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281 and request.headers.content_type == "application/x-www-form-urlencoded" |
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282 and http.formdecode(request.body); |
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283 |
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284 if not form then return {}; end |
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285 |
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286 if not form.user_token then |
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287 -- First step: login |
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288 local username = encodings.stringprep.nodeprep(form.username); |
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289 local password = encodings.stringprep.saslprep(form.password); |
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290 if not (username and password) or not usermanager.test_password(username, module.host, password) then |
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291 return { |
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292 error = "Invalid username/password"; |
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293 }; |
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294 end |
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295 return { |
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296 user = { |
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297 username = username; |
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298 host = module.host; |
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299 token = new_user_token({ username = username, host = module.host }); |
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300 }; |
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301 }; |
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302 elseif form.user_token and form.consent then |
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303 -- Second step: consent |
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304 local ok, user = verify_user_token(form.user_token); |
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305 if not ok then |
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306 return { |
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307 error = user == "token-expired" and "Session expired - try again" or nil; |
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308 }; |
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309 end |
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310 |
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311 user.token = form.user_token; |
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312 return { |
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313 user = user; |
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314 consent = form.consent == "granted"; |
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315 }; |
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316 end |
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317 |
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318 return {}; |
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319 end |
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320 |
4370
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diff
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|
321 local function check_credentials(request, allow_token) |
4256
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322 local auth_type, auth_data = string.match(request.headers.authorization, "^(%S+)%s(.+)$"); |
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|
323 |
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324 if auth_type == "Basic" then |
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325 local creds = base64.decode(auth_data); |
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326 if not creds then return false; end |
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327 local username, password = string.match(creds, "^([^:]+):(.*)$"); |
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328 if not username then return false; end |
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329 username, password = encodings.stringprep.nodeprep(username), encodings.stringprep.saslprep(password); |
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330 if not username then return false; end |
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|
331 if not usermanager.test_password(username, module.host, password) then |
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|
332 return false; |
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333 end |
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334 return username; |
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335 elseif auth_type == "Bearer" and allow_token then |
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|
336 local token_info = tokens.get_token_info(auth_data); |
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337 if not token_info or not token_info.session or token_info.session.host ~= module.host then |
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|
338 return false; |
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|
339 end |
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340 return token_info.session.username; |
4256
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|
341 end |
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342 return nil; |
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343 end |
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|
344 |
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345 if module:get_host_type() == "component" then |
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346 local component_secret = assert(module:get_option_string("component_secret"), "'component_secret' is a required setting when loaded on a Component"); |
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347 |
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348 function grant_type_handlers.password(params) |
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349 local request_jid = assert(params.username, oauth_error("invalid_request", "missing 'username' (JID)")); |
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350 local request_password = assert(params.password, oauth_error("invalid_request", "missing 'password'")); |
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351 local request_username, request_host, request_resource = jid.prepped_split(request_jid); |
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352 if params.scope then |
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353 return oauth_error("invalid_scope", "unknown scope requested"); |
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354 end |
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355 if not request_host or request_host ~= module.host then |
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356 return oauth_error("invalid_request", "invalid JID"); |
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357 end |
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358 if request_password == component_secret then |
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359 local granted_jid = jid.join(request_username, request_host, request_resource); |
4257
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360 return json.encode(new_access_token(granted_jid, nil, nil)); |
3920
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361 end |
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362 return oauth_error("invalid_grant", "incorrect credentials"); |
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363 end |
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364 |
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365 -- TODO How would this make sense with components? |
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366 -- Have an admin authenticate maybe? |
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367 response_type_handlers.code = nil; |
5186
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368 response_type_handlers.token = nil; |
4256
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369 grant_type_handlers.authorization_code = nil; |
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370 check_credentials = function () return false end |
3920
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371 end |
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372 |
5208
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373 -- OAuth errors should be returned to the client if possible, i.e. by |
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374 -- appending the error information to the redirect_uri and sending the |
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375 -- redirect to the user-agent. In some cases we can't do this, e.g. if |
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376 -- the redirect_uri is missing or invalid. In those cases, we render an |
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377 -- error directly to the user-agent. |
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378 local function error_response(request, err) |
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379 local q = request.url.query and http.formdecode(request.url.query); |
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380 local redirect_uri = q and q.redirect_uri; |
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|
381 if not redirect_uri or not redirect_uri:match("^https://") then |
aaa64c647e12
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diff
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|
382 module:log("warn", "Missing or invalid redirect_uri <%s>, rendering error to user-agent", redirect_uri or ""); |
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|
383 return render_page(templates.error, { error = err }); |
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|
384 end |
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|
385 local redirect_query = url.parse(redirect_uri); |
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|
386 local sep = redirect_query and "&" or "?"; |
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diff
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|
387 redirect_uri = redirect_uri |
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diff
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|
388 .. sep .. http.formencode(err.extra.oauth2_response) |
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|
389 .. "&" .. http.formencode({ state = q.state, iss = get_issuer() }); |
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diff
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|
390 module:log("warn", "Sending error response to client via redirect to %s", redirect_uri); |
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diff
changeset
|
391 return { |
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diff
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|
392 status_code = 302; |
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5207
diff
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|
393 headers = { |
aaa64c647e12
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diff
changeset
|
394 location = redirect_uri; |
aaa64c647e12
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diff
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|
395 }; |
aaa64c647e12
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diff
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|
396 }; |
aaa64c647e12
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|
397 end |
aaa64c647e12
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5207
diff
changeset
|
398 |
5187
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
399 local allowed_grant_type_handlers = module:get_option_set("allowed_oauth2_grant_types", {"authorization_code", "password"}) |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
400 for handler_type in pairs(grant_type_handlers) do |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
401 if not allowed_grant_type_handlers:contains(handler_type) then |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
402 grant_type_handlers[handler_type] = nil; |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
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5186
diff
changeset
|
403 end |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
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parents:
5186
diff
changeset
|
404 end |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
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5186
diff
changeset
|
405 |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
406 -- "token" aka implicit flow is considered insecure |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
407 local allowed_response_type_handlers = module:get_option_set("allowed_oauth2_response_types", {"code"}) |
5198
2e8a7a0f932d
mod_http_oauth2: Fix response type config
Kim Alvefur <zash@zash.se>
parents:
5196
diff
changeset
|
408 for handler_type in pairs(response_type_handlers) do |
2e8a7a0f932d
mod_http_oauth2: Fix response type config
Kim Alvefur <zash@zash.se>
parents:
5196
diff
changeset
|
409 if not allowed_response_type_handlers:contains(handler_type) then |
5187
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
410 grant_type_handlers[handler_type] = nil; |
6a3c1febd7be
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5186
diff
changeset
|
411 end |
6a3c1febd7be
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5186
diff
changeset
|
412 end |
6a3c1febd7be
mod_http_oauth2: Add settings for allowed grant and response types
Kim Alvefur <zash@zash.se>
parents:
5186
diff
changeset
|
413 |
3903
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
414 function handle_token_grant(event) |
3934
469408682152
mod_http_oauth2: Set content type on successful repsponses (fixes #1501)
Kim Alvefur <zash@zash.se>
parents:
3920
diff
changeset
|
415 event.response.headers.content_type = "application/json"; |
3903
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
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parents:
diff
changeset
|
416 local params = http.formdecode(event.request.body); |
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
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parents:
diff
changeset
|
417 if not params then |
5208
aaa64c647e12
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diff
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|
418 return error_response(event.request, oauth_error("invalid_request")); |
3903
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
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parents:
diff
changeset
|
419 end |
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
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parents:
diff
changeset
|
420 local grant_type = params.grant_type |
cfeb93b80621
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parents:
diff
changeset
|
421 local grant_handler = grant_type_handlers[grant_type]; |
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
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parents:
diff
changeset
|
422 if not grant_handler then |
5208
aaa64c647e12
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5207
diff
changeset
|
423 return error_response(event.request, oauth_error("unsupported_grant_type")); |
3903
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
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parents:
diff
changeset
|
424 end |
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
425 return grant_handler(params); |
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
426 end |
cfeb93b80621
mod_http_oauth2: OAuth2 API (work in progress for developers only)
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
427 |
4256
c4b9d4ba839b
mod_http_oauth2: Authorization code flow
Kim Alvefur <zash@zash.se>
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4237
diff
changeset
|
428 local function handle_authorization_request(event) |
5208
aaa64c647e12
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diff
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|
429 local request = event.request; |
aaa64c647e12
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diff
changeset
|
430 |
4258
cc712899becd
mod_http_oauth2: Unpack event object to improve readability
Kim Alvefur <zash@zash.se>
parents:
4257
diff
changeset
|
431 if not request.url.query then |
5208
aaa64c647e12
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diff
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|
432 return error_response(request, oauth_error("invalid_request")); |
4256
c4b9d4ba839b
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Kim Alvefur <zash@zash.se>
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4237
diff
changeset
|
433 end |
4258
cc712899becd
mod_http_oauth2: Unpack event object to improve readability
Kim Alvefur <zash@zash.se>
parents:
4257
diff
changeset
|
434 local params = http.formdecode(request.url.query); |
4256
c4b9d4ba839b
mod_http_oauth2: Authorization code flow
Kim Alvefur <zash@zash.se>
parents:
4237
diff
changeset
|
435 if not params then |
5208
aaa64c647e12
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diff
changeset
|
436 return error_response(request, oauth_error("invalid_request")); |
aaa64c647e12
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5207
diff
changeset
|
437 end |
aaa64c647e12
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5207
diff
changeset
|
438 |
aaa64c647e12
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diff
changeset
|
439 if not params.client_id then return oauth_error("invalid_request", "missing 'client_id'"); end |
aaa64c647e12
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5207
diff
changeset
|
440 |
aaa64c647e12
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diff
changeset
|
441 local ok, client = jwt_verify(params.client_id); |
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mod_http_oauth2: Add authentication, consent and error pages
Matthew Wild <mwild1@gmail.com>
parents:
5207
diff
changeset
|
442 |
aaa64c647e12
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Matthew Wild <mwild1@gmail.com>
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5207
diff
changeset
|
443 if not ok then |
aaa64c647e12
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diff
changeset
|
444 return oauth_error("invalid_client", "incorrect credentials"); |
4256
c4b9d4ba839b
mod_http_oauth2: Authorization code flow
Kim Alvefur <zash@zash.se>
parents:
4237
diff
changeset
|
445 end |
5208
aaa64c647e12
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parents:
5207
diff
changeset
|
446 |
aaa64c647e12
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diff
changeset
|
447 local auth_state = get_auth_state(request); |
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diff
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|
448 if not auth_state.user then |
aaa64c647e12
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diff
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|
449 -- Render login page |
aaa64c647e12
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diff
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|
450 return render_page(templates.login, { state = auth_state, client = client }); |
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diff
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|
451 elseif auth_state.consent == nil then |
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diff
changeset
|
452 -- Render consent page |
aaa64c647e12
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diff
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|
453 return render_page(templates.consent, { state = auth_state, client = client }, true); |
aaa64c647e12
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diff
changeset
|
454 elseif not auth_state.consent then |
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diff
changeset
|
455 -- Notify client of rejection |
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diff
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|
456 return error_response(request, oauth_error("access_denied")); |
aaa64c647e12
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5207
diff
changeset
|
457 end |
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parents:
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diff
changeset
|
458 |
4256
c4b9d4ba839b
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Kim Alvefur <zash@zash.se>
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diff
changeset
|
459 local response_type = params.response_type; |
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Kim Alvefur <zash@zash.se>
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diff
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|
460 local response_handler = response_type_handlers[response_type]; |
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Kim Alvefur <zash@zash.se>
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4237
diff
changeset
|
461 if not response_handler then |
5208
aaa64c647e12
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diff
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|
462 return error_response(request, oauth_error("unsupported_response_type")); |
4256
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diff
changeset
|
463 end |
5208
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diff
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|
464 return response_handler(client, params, jid.join(auth_state.user.username, module.host)); |
4256
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diff
changeset
|
465 end |
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Kim Alvefur <zash@zash.se>
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diff
changeset
|
466 |
4370
dee6b5098278
mod_http_oauth2: Add endpoint to revoke a key (RFC 7009 kinda)
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diff
changeset
|
467 local function handle_revocation_request(event) |
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diff
changeset
|
468 local request, response = event.request, event.response; |
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Matthew Wild <mwild1@gmail.com>
parents:
4340
diff
changeset
|
469 if not request.headers.authorization then |
dee6b5098278
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diff
changeset
|
470 response.headers.www_authenticate = string.format("Basic realm=%q", module.host.."/"..module.name); |
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diff
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|
471 return 401; |
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diff
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|
472 elseif request.headers.content_type ~= "application/x-www-form-urlencoded" |
dee6b5098278
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diff
changeset
|
473 or not request.body or request.body == "" then |
dee6b5098278
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parents:
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diff
changeset
|
474 return 400; |
dee6b5098278
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diff
changeset
|
475 end |
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diff
changeset
|
476 local user = check_credentials(request, true); |
dee6b5098278
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parents:
4340
diff
changeset
|
477 if not user then |
dee6b5098278
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diff
changeset
|
478 return 401; |
dee6b5098278
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diff
changeset
|
479 end |
dee6b5098278
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diff
changeset
|
480 |
dee6b5098278
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parents:
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diff
changeset
|
481 local form_data = http.formdecode(event.request.body); |
dee6b5098278
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parents:
4340
diff
changeset
|
482 if not form_data or not form_data.token then |
dee6b5098278
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parents:
4340
diff
changeset
|
483 return 400; |
dee6b5098278
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parents:
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diff
changeset
|
484 end |
dee6b5098278
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parents:
4340
diff
changeset
|
485 local ok, err = tokens.revoke_token(form_data.token); |
dee6b5098278
mod_http_oauth2: Add endpoint to revoke a key (RFC 7009 kinda)
Matthew Wild <mwild1@gmail.com>
parents:
4340
diff
changeset
|
486 if not ok then |
dee6b5098278
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Matthew Wild <mwild1@gmail.com>
parents:
4340
diff
changeset
|
487 module:log("warn", "Unable to revoke token: %s", tostring(err)); |
dee6b5098278
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parents:
4340
diff
changeset
|
488 return 500; |
dee6b5098278
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parents:
4340
diff
changeset
|
489 end |
dee6b5098278
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diff
changeset
|
490 return 200; |
dee6b5098278
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parents:
4340
diff
changeset
|
491 end |
dee6b5098278
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parents:
4340
diff
changeset
|
492 |
5193
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parents:
5192
diff
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|
493 local registration_schema = { |
2bb29ece216b
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parents:
5192
diff
changeset
|
494 type = "object"; |
2bb29ece216b
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parents:
5192
diff
changeset
|
495 required = { "client_name"; "redirect_uris" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
496 properties = { |
2bb29ece216b
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parents:
5192
diff
changeset
|
497 redirect_uris = { type = "array"; minLength = 1; items = { type = "string"; format = "uri" } }; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
498 token_endpoint_auth_method = { enum = { "none"; "client_secret_post"; "client_secret_basic" }; type = "string" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
499 grant_types = { |
2bb29ece216b
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parents:
5192
diff
changeset
|
500 items = { |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
501 enum = { |
2bb29ece216b
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parents:
5192
diff
changeset
|
502 "authorization_code"; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
503 "implicit"; |
2bb29ece216b
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parents:
5192
diff
changeset
|
504 "password"; |
2bb29ece216b
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parents:
5192
diff
changeset
|
505 "client_credentials"; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
506 "refresh_token"; |
2bb29ece216b
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parents:
5192
diff
changeset
|
507 "urn:ietf:params:oauth:grant-type:jwt-bearer"; |
2bb29ece216b
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parents:
5192
diff
changeset
|
508 "urn:ietf:params:oauth:grant-type:saml2-bearer"; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
509 }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
510 type = "string"; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
511 }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
512 type = "array"; |
2bb29ece216b
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parents:
5192
diff
changeset
|
513 }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
514 response_types = { items = { enum = { "code"; "token" }; type = "string" }; type = "array" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
515 client_name = { type = "string" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
516 client_uri = { type = "string"; format = "uri" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
517 logo_uri = { type = "string"; format = "uri" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
518 scope = { type = "string" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
519 contacts = { items = { type = "string" }; type = "array" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
520 tos_uri = { type = "string" }; |
2bb29ece216b
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parents:
5192
diff
changeset
|
521 policy_uri = { type = "string"; format = "uri" }; |
2bb29ece216b
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5192
diff
changeset
|
522 jwks_uri = { type = "string"; format = "uri" }; |
2bb29ece216b
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5192
diff
changeset
|
523 jwks = { type = "object"; description = "JSON Web Key Set, RFC 7517" }; |
2bb29ece216b
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5192
diff
changeset
|
524 software_id = { type = "string"; format = "uuid" }; |
2bb29ece216b
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5192
diff
changeset
|
525 software_version = { type = "string" }; |
2bb29ece216b
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5192
diff
changeset
|
526 }; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
parents:
5192
diff
changeset
|
527 } |
2bb29ece216b
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parents:
5192
diff
changeset
|
528 |
2bb29ece216b
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diff
changeset
|
529 local function handle_register_request(event) |
2bb29ece216b
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5192
diff
changeset
|
530 local request = event.request; |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
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5192
diff
changeset
|
531 local client_metadata = json.decode(request.body); |
2bb29ece216b
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parents:
5192
diff
changeset
|
532 |
2bb29ece216b
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5192
diff
changeset
|
533 if not schema.validate(registration_schema, client_metadata) then |
2bb29ece216b
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diff
changeset
|
534 return oauth_error("invalid_request", "Failed schema validation."); |
2bb29ece216b
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5192
diff
changeset
|
535 end |
2bb29ece216b
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parents:
5192
diff
changeset
|
536 |
2bb29ece216b
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parents:
5192
diff
changeset
|
537 -- Ensure each signed client_id JWT is unique |
2bb29ece216b
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5192
diff
changeset
|
538 client_metadata.nonce = uuid.generate(); |
2bb29ece216b
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5192
diff
changeset
|
539 |
2bb29ece216b
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5192
diff
changeset
|
540 -- Do we want to keep everything? |
2bb29ece216b
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Kim Alvefur <zash@zash.se>
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5192
diff
changeset
|
541 local client_id = jwt_sign(client_metadata); |
2bb29ece216b
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5192
diff
changeset
|
542 local client_secret = make_secret(client_id); |
2bb29ece216b
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5192
diff
changeset
|
543 |
2bb29ece216b
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diff
changeset
|
544 local client_desc = { |
2bb29ece216b
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diff
changeset
|
545 client_id = client_id; |
2bb29ece216b
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diff
changeset
|
546 client_secret = client_secret; |
2bb29ece216b
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diff
changeset
|
547 client_id_issued_at = os.time(); |
2bb29ece216b
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diff
changeset
|
548 client_secret_expires_at = 0; |
2bb29ece216b
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diff
changeset
|
549 } |
5202
b81fd0d22c66
mod_http_oauth2: Calculate client secret expiry in registration response
Kim Alvefur <zash@zash.se>
parents:
5201
diff
changeset
|
550 if not registration_options.accept_expired then |
b81fd0d22c66
mod_http_oauth2: Calculate client secret expiry in registration response
Kim Alvefur <zash@zash.se>
parents:
5201
diff
changeset
|
551 client_desc.client_secret_expires_at = client_desc.client_id_issued_at + (registration_options.default_ttl or 3600); |
b81fd0d22c66
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parents:
5201
diff
changeset
|
552 end |
5193
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diff
changeset
|
553 |
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changeset
|
554 return { |
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|
555 status_code = 201; |
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556 headers = { content_type = "application/json" }; |
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557 body = json.encode(client_desc); |
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|
558 }; |
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|
559 end |
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|
560 |
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561 if not registration_key then |
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562 module:log("info", "No 'oauth2_registration_key', dynamic client registration disabled") |
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563 handle_authorization_request = nil |
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564 handle_register_request = nil |
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565 end |
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|
566 |
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567 module:depends("http"); |
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568 module:provides("http", { |
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569 route = { |
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570 ["POST /token"] = handle_token_grant; |
4256
c4b9d4ba839b
mod_http_oauth2: Authorization code flow
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571 ["GET /authorize"] = handle_authorization_request; |
5208
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572 ["POST /authorize"] = handle_authorization_request; |
4370
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mod_http_oauth2: Add endpoint to revoke a key (RFC 7009 kinda)
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diff
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|
573 ["POST /revoke"] = handle_revocation_request; |
5193
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574 ["POST /register"] = handle_register_request; |
5208
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575 |
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576 -- Optional static content for templates |
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|
577 ["GET /style.css"] = templates.css and { |
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578 headers = { |
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579 ["Content-Type"] = "text/css"; |
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580 }; |
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581 body = _render_html(templates.css, module:get_option("oauth2_template_style")); |
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582 } or nil; |
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583 ["GET /script.js"] = templates.js and { |
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584 headers = { |
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585 ["Content-Type"] = "text/javascript"; |
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586 }; |
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587 body = templates.js; |
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588 } or nil; |
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589 }; |
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590 }); |
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|
591 |
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592 local http_server = require "net.http.server"; |
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593 |
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diff
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|
594 module:hook_object_event(http_server, "http-error", function (event) |
4276
ec33b3b1136c
mod_http_oauth2: Fix passing OAuth-specific error details
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parents:
4272
diff
changeset
|
595 local oauth2_response = event.error and event.error.extra and event.error.extra.oauth2_response; |
3903
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596 if not oauth2_response then |
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diff
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|
597 return; |
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|
598 end |
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parents:
diff
changeset
|
599 event.response.headers.content_type = "application/json"; |
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parents:
diff
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|
600 event.response.status_code = event.error.code or 400; |
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parents:
diff
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|
601 return json.encode(oauth2_response); |
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parents:
diff
changeset
|
602 end, 5); |
5189
4ee8eb1134a8
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parents:
5188
diff
changeset
|
603 |
4ee8eb1134a8
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parents:
5188
diff
changeset
|
604 -- OIDC Discovery |
4ee8eb1134a8
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diff
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|
605 |
4ee8eb1134a8
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5188
diff
changeset
|
606 module:provides("http", { |
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5188
diff
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|
607 name = "oauth2-discovery"; |
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diff
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|
608 default_path = "/.well-known/oauth-authorization-server"; |
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diff
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|
609 route = { |
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diff
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|
610 ["GET"] = { |
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diff
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|
611 headers = { content_type = "application/json" }; |
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diff
changeset
|
612 body = json.encode { |
5207
c72e3b0914e8
mod_http_oauth: Factor out issuer URL calculation to a helper function
Matthew Wild <mwild1@gmail.com>
parents:
5206
diff
changeset
|
613 issuer = get_issuer(); |
5200
afed7d5bd65c
mod_http_oauth2: Advertise endpoints that are enabled
Kim Alvefur <zash@zash.se>
parents:
5199
diff
changeset
|
614 authorization_endpoint = handle_authorization_request and module:http_url() .. "/authorize" or nil; |
afed7d5bd65c
mod_http_oauth2: Advertise endpoints that are enabled
Kim Alvefur <zash@zash.se>
parents:
5199
diff
changeset
|
615 token_endpoint = handle_token_grant and module:http_url() .. "/token" or nil; |
5189
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diff
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|
616 jwks_uri = nil; -- TODO? |
5200
afed7d5bd65c
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Kim Alvefur <zash@zash.se>
parents:
5199
diff
changeset
|
617 registration_endpoint = handle_register_request and module:http_url() .. "/register" or nil; |
5205
b6f41f0b5f58
mod_http_oauth2: Specify host for which to retrieve list of roles
Kim Alvefur <zash@zash.se>
parents:
5204
diff
changeset
|
618 scopes_supported = usermanager.get_all_roles and array(it.keys(usermanager.get_all_roles(module.host))) |
5204
eb8b3a068ecc
mod_http_oauth2: Return list of active roles in discovery
Kim Alvefur <zash@zash.se>
parents:
5203
diff
changeset
|
619 or { "prosody:restricted"; "prosody:user"; "prosody:admin"; "prosody:operator" }; |
5203
c60cff787d6a
mod_http_oauth2: Return actually enabled response types in discovery
Kim Alvefur <zash@zash.se>
parents:
5202
diff
changeset
|
620 response_types_supported = array(it.keys(response_type_handlers)); |
5192
03aa9baa9ac3
mod_http_oauth2: Add support for 'iss' authz response parameter (RFC 9207)
Matthew Wild <mwild1@gmail.com>
parents:
5191
diff
changeset
|
621 authorization_response_iss_parameter_supported = true; |
5189
4ee8eb1134a8
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parents:
5188
diff
changeset
|
622 }; |
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parents:
5188
diff
changeset
|
623 }; |
4ee8eb1134a8
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parents:
5188
diff
changeset
|
624 }; |
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parents:
5188
diff
changeset
|
625 }); |
4ee8eb1134a8
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parents:
5188
diff
changeset
|
626 |
4ee8eb1134a8
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parents:
5188
diff
changeset
|
627 module:shared("tokenauth/oauthbearer_config").oidc_discovery_url = module:http_url("oauth2-discovery", "/.well-known/oauth-authorization-server"); |