annotate src/conv.rs @ 75:c30811b4afae

rename pam_ffi submodule to libpam.
author Paul Fisher <paul@pfish.zone>
date Fri, 06 Jun 2025 22:35:08 -0400
parents c7c596e6388f
children e58d24849e82
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8f3ae0c7ab92 Rework conversation data types and make safe wrappers.
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1 //! The PAM conversation and associated Stuff.
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2
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3 // Temporarily allowed until we get the actual conversation functions hooked up.
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4 #![allow(dead_code)]
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5
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6 use crate::constants::Result;
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7 use crate::ErrorCode;
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8 use secure_string::SecureString;
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9 use std::cell::Cell;
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11 /// The types of message and request that can be sent to a user.
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12 ///
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13 /// The data within each enum value is the prompt (or other information)
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14 /// that will be presented to the user.
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15 pub enum Message<'a> {
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16 MaskedPrompt(&'a MaskedPrompt<'a>),
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17 Prompt(&'a Prompt<'a>),
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18 RadioPrompt(&'a RadioPrompt<'a>),
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19 BinaryPrompt(&'a BinaryPrompt<'a>),
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20 InfoMsg(&'a InfoMsg<'a>),
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21 ErrorMsg(&'a ErrorMsg<'a>),
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22 }
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23
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24 /// A question-and-answer pair that can be communicated in a [`Conversation`].
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25 ///
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26 /// The asking side creates a `QAndA`, then converts it to a [`Message`]
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27 /// and sends it via a [`Conversation`]. The Conversation then retrieves
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28 /// the answer to the question (if needed) and sets the response.
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29 /// Once control returns to the asker, the asker gets the answer from this
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30 /// `QAndA` and uses it however it wants.
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31 ///
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32 /// For a more detailed explanation of how this works,
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33 /// see [`Conversation::communicate`].
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34 pub trait QAndA<'a> {
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35 /// The type of the content of the question.
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36 type Question: Copy;
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37 /// The type of the answer to the question.
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38 type Answer;
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39
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40 /// Converts this Q-and-A pair into a [`Message`] for the [`Conversation`].
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41 fn message(&self) -> Message;
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42
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43 /// The contents of the question being asked.
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44 ///
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45 /// For instance, this might say `"Username:"` to prompt the user
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46 /// for their name.
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47 fn question(&self) -> Self::Question;
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48
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49 /// Sets the answer to the question.
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50 ///
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51 /// The [`Conversation`] implementation calls this to set the answer.
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52 /// The conversation should *always call this function*, even for messages
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53 /// that don't have "an answer" (like error or info messages).
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54 fn set_answer(&self, answer: Result<Self::Answer>);
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55
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56 /// Gets the answer to the question.
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57 fn answer(self) -> Result<Self::Answer>;
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58 }
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59
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60 macro_rules! q_and_a {
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61 ($name:ident<'a, Q=$qt:ty, A=$at:ty>, $($doc:literal)*) => {
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62 $(
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63 #[doc = $doc]
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64 )*
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65 pub struct $name<'a> {
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66 q: $qt,
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67 a: Cell<Result<$at>>,
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68 }
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70 impl<'a> QAndA<'a> for $name<'a> {
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71 type Question = $qt;
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72 type Answer = $at;
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73
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74 fn question(&self) -> Self::Question {
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75 self.q
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76 }
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77
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78 fn set_answer(&self, answer: Result<Self::Answer>) {
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79 self.a.set(answer)
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80 }
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81
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82 fn answer(self) -> Result<Self::Answer> {
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83 self.a.into_inner()
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84 }
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85
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86 fn message(&self) -> Message {
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87 Message::$name(self)
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88 }
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89 }
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90 };
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91 }
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92
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93 macro_rules! ask {
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94 ($t:ident) => {
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95 impl<'a> $t<'a> {
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96 #[doc = concat!("Creates a `", stringify!($t), "` to be sent to the user.")]
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97 fn ask(question: &'a str) -> Self {
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98 Self {
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99 q: question,
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100 a: Cell::new(Err(ErrorCode::ConversationError)),
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101 }
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102 }
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103 }
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104 };
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105 }
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106
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107 q_and_a!(
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108 MaskedPrompt<'a, Q=&'a str, A=SecureString>,
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109 "Asks the user for data and does not echo it back while being entered."
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110 ""
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111 "In other words, a password entry prompt."
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112 );
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113 ask!(MaskedPrompt);
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114
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115 q_and_a!(
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116 Prompt<'a, Q=&'a str, A=String>,
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117 "Asks the user for data."
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118 ""
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119 "This is the normal \"ask a person a question\" prompt."
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120 "When the user types, their input will be shown to them."
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121 "It can be used for things like usernames."
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122 );
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123 ask!(Prompt);
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124
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125 q_and_a!(
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126 RadioPrompt<'a, Q=&'a str, A=String>,
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127 "Asks the user for \"radio button\"–style data. (Linux-PAM extension)"
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128 ""
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129 "This message type is theoretically useful for \"yes/no/maybe\""
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130 "questions, but nowhere in the documentation is it specified"
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131 "what the format of the answer will be, or how this should be shown."
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132 );
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133 ask!(RadioPrompt);
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134
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135 q_and_a!(
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136 BinaryPrompt<'a, Q=BinaryQuestion<'a>, A=BinaryData>,
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137 "Asks for binary data. (Linux-PAM extension)"
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138 ""
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139 "This sends a binary message to the client application."
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140 "It can be used to communicate with non-human logins,"
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141 "or to enable things like security keys."
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142 ""
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143 "The `data_type` tag is a value that is simply passed through"
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144 "to the application. PAM does not define any meaning for it."
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145 );
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146 impl<'a> BinaryPrompt<'a> {
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147 /// Creates a prompt for the given binary data.
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148 ///
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149 /// The `data_type` is a tag you can use for communication between
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150 /// the module and the application. Its meaning is undefined by PAM.
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151 fn ask(data: &'a [u8], data_type: u8) -> Self {
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152 Self {
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153 q: BinaryQuestion { data, data_type },
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154 a: Cell::new(Err(ErrorCode::ConversationError)),
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155 }
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156 }
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157 }
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158
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159 /// The contents of a question requesting binary data.
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160 ///
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161 /// A borrowed version of [`BinaryData`].
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162 #[derive(Copy, Clone, Debug)]
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163 pub struct BinaryQuestion<'a> {
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164 data: &'a [u8],
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165 data_type: u8,
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166 }
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167
74
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168 impl BinaryQuestion<'_> {
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169 /// Gets the data of this question.
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170 pub fn data(&self) -> &[u8] {
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171 self.data
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172 }
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173
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174 /// Gets the "type" of this data.
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175 pub fn data_type(&self) -> u8 {
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176 self.data_type
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177 }
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178 }
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179
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180 /// Owned binary data.
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181 ///
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182 /// For borrowed data, see [`BinaryQuestion`].
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183 /// You can take ownership of the stored data with `.into::<Vec<u8>>()`.
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184 #[derive(Debug, PartialEq)]
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185 pub struct BinaryData {
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186 data: Vec<u8>,
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187 data_type: u8,
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188 }
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189
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190 impl BinaryData {
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191 /// Creates a `BinaryData` with the given contents and type.
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192 pub fn new(data: Vec<u8>, data_type: u8) -> Self {
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193 Self { data, data_type }
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194 }
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195 /// A borrowed view of the data here.
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196 pub fn data(&self) -> &[u8] {
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197 &self.data
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198 }
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199 /// The type of the data stored in this.
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200 pub fn data_type(&self) -> u8 {
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201 self.data_type
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202 }
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203 }
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204
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205 impl From<BinaryData> for Vec<u8> {
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206 /// Takes ownership of the data stored herein.
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207 fn from(value: BinaryData) -> Self {
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208 value.data
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209 }
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210 }
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211
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212 q_and_a!(
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213 InfoMsg<'a, Q = &'a str, A = ()>,
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214 "A message containing information to be passed to the user."
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215 ""
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216 "While this does not have an answer, [`Conversation`] implementations"
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217 "should still call [`set_answer`][`QAndA::set_answer`] to verify that"
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218 "the message has been displayed (or actively discarded)."
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219 );
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220 impl<'a> InfoMsg<'a> {
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221 /// Creates an informational message to send to the user.
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222 fn new(message: &'a str) -> Self {
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223 Self {
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224 q: message,
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225 a: Cell::new(Err(ErrorCode::ConversationError)),
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226 }
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227 }
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228 }
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229
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230 q_and_a!(
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231 ErrorMsg<'a, Q = &'a str, A = ()>,
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232 "An error message to be passed to the user."
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233 ""
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234 "While this does not have an answer, [`Conversation`] implementations"
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235 "should still call [`set_answer`][`QAndA::set_answer`] to verify that"
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236 "the message has been displayed (or actively discarded)."
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237
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238 );
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239 impl<'a> ErrorMsg<'a> {
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240 /// Creates an error message to send to the user.
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241 fn new(message: &'a str) -> Self {
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242 Self {
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243 q: message,
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244 a: Cell::new(Err(ErrorCode::ConversationError)),
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245 }
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246 }
73
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247 }
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248
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249 /// A channel for PAM modules to request information from the user.
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250 ///
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251 /// This trait is used by both applications and PAM modules:
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252 ///
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253 /// - Applications implement Conversation and provide a user interface
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254 /// to allow the user to respond to PAM questions.
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255 /// - Modules call a Conversation implementation to request information
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256 /// or send information to the user.
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257 pub trait Conversation {
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258 /// Sends messages to the user.
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259 ///
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260 /// The returned Vec of messages always contains exactly as many entries
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261 /// as there were messages in the request; one corresponding to each.
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262 ///
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263 /// TODO: write detailed documentation about how to use this.
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264 fn communicate(&mut self, messages: &[Message]);
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265 }
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266
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267 /// Turns a simple function into a [`Conversation`].
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268 ///
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269 /// This can be used to wrap a free-floating function for use as a
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270 /// Conversation:
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271 ///
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272 /// ```
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273 /// use nonstick::conv::{Conversation, Message, conversation_func};
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274 /// mod some_library {
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275 /// # use nonstick::Conversation;
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276 /// pub fn get_auth_data(conv: &mut impl Conversation) { /* ... */ }
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277 /// }
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278 ///
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279 /// fn my_terminal_prompt(messages: &[Message]) {
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280 /// // ...
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281 /// # todo!()
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282 /// }
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283 ///
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284 /// fn main() {
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285 /// some_library::get_auth_data(&mut conversation_func(my_terminal_prompt));
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286 /// }
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287 /// ```
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288 pub fn conversation_func(func: impl FnMut(&[Message])) -> impl Conversation {
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289 Convo(func)
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290 }
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291
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292 struct Convo<C: FnMut(&[Message])>(C);
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293
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294 impl<C: FnMut(&[Message])> Conversation for Convo<C> {
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295 fn communicate(&mut self, messages: &[Message]) {
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296 self.0(messages)
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297 }
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298 }
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299
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300 /// A conversation trait for asking or answering one question at a time.
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301 ///
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302 /// An implementation of this is provided for any [`Conversation`],
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303 /// or a PAM application can implement this trait and handle messages
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304 /// one at a time.
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305 ///
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306 /// For example, to use a `Conversation` as a `SimpleConversation`:
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307 ///
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308 /// ```
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309 /// # use nonstick::{Conversation, Result};
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310 /// # use secure_string::SecureString;
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311 /// // Bring this trait into scope to get `masked_prompt`, among others.
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312 /// use nonstick::SimpleConversation;
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313 ///
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314 /// fn ask_for_token(convo: &mut impl Conversation) -> Result<SecureString> {
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315 /// convo.masked_prompt("enter your one-time token")
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316 /// }
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317 /// ```
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318 ///
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319 /// or to use a `SimpleConversation` as a `Conversation`:
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320 ///
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321 /// ```
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322 /// use secure_string::SecureString;
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323 /// use nonstick::{Conversation, SimpleConversation};
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324 /// # use nonstick::{BinaryData, Result};
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325 /// mod some_library {
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326 /// # use nonstick::Conversation;
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327 /// pub fn get_auth_data(conv: &mut impl Conversation) { /* ... */ }
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328 /// }
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329 ///
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330 /// struct MySimpleConvo { /* ... */ }
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331 /// # impl MySimpleConvo { fn new() -> Self { Self{} } }
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332 ///
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333 /// impl SimpleConversation for MySimpleConvo {
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334 /// // ...
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335 /// # fn prompt(&mut self, request: &str) -> Result<String> {
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336 /// # todo!()
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337 /// # }
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338 /// #
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339 /// # fn masked_prompt(&mut self, request: &str) -> Result<SecureString> {
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340 /// # todo!()
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341 /// # }
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342 /// #
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343 /// # fn radio_prompt(&mut self, request: &str) -> Result<String> {
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344 /// # todo!()
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345 /// # }
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346 /// #
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347 /// # fn error_msg(&mut self, message: &str) {
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348 /// # todo!()
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349 /// # }
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350 /// #
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351 /// # fn info_msg(&mut self, message: &str) {
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352 /// # todo!()
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353 /// # }
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354 /// #
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355 /// # fn binary_prompt(&mut self, data: &[u8], data_type: u8) -> Result<BinaryData> {
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356 /// # todo!()
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357 /// # }
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358 /// }
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359 ///
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360 /// fn main() {
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361 /// let mut simple = MySimpleConvo::new();
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362 /// some_library::get_auth_data(&mut simple.as_conversation())
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363 /// }
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364 /// ```
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365 pub trait SimpleConversation {
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366 /// Lets you use this simple conversation as a full [Conversation].
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367 ///
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368 /// The wrapper takes each message received in [`Conversation::communicate`]
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369 /// and passes them one-by-one to the appropriate method,
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370 /// then collects responses to return.
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371 fn as_conversation(&mut self) -> Demux<Self>
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372 where
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373 Self: Sized,
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374 {
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375 Demux(self)
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376 }
73
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377 /// Prompts the user for something.
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378 fn prompt(&mut self, request: &str) -> Result<String>;
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379 /// Prompts the user for something, but hides what the user types.
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380 fn masked_prompt(&mut self, request: &str) -> Result<SecureString>;
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381 /// Prompts the user for a yes/no/maybe conditional (a Linux-PAM extension).
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382 ///
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383 /// PAM documentation doesn't define the format of the response.
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384 fn radio_prompt(&mut self, request: &str) -> Result<String>;
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385 /// Alerts the user to an error.
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386 fn error_msg(&mut self, message: &str);
73
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387 /// Sends an informational message to the user.
74
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388 fn info_msg(&mut self, message: &str);
73
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389 /// Requests binary data from the user (a Linux-PAM extension).
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390 fn binary_prompt(&mut self, data: &[u8], data_type: u8) -> Result<BinaryData>;
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391 }
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392
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393 macro_rules! conv_fn {
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394 ($fn_name:ident($($param:ident: $pt:ty),+) -> $resp_type:ty { $ask:path }) => {
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395 fn $fn_name(&mut self, $($param: $pt),*) -> Result<$resp_type> {
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396 let prompt = $ask($($param),*);
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397 self.communicate(&[prompt.message()]);
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398 prompt.answer()
73
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399 }
74
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400 };
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401 ($fn_name:ident($($param:ident: $pt:ty),+) { $ask:path }) => {
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402 fn $fn_name(&mut self, $($param: $pt),*) {
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403 self.communicate(&[$ask($($param),*).message()]);
73
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404 }
74
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405 };
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406 }
73
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407
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408 impl<C: Conversation> SimpleConversation for C {
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409 conv_fn!(prompt(message: &str) -> String { Prompt::ask });
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410 conv_fn!(masked_prompt(message: &str) -> SecureString { MaskedPrompt::ask });
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411 conv_fn!(radio_prompt(message: &str) -> String { RadioPrompt::ask });
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412 conv_fn!(error_msg(message: &str) { ErrorMsg::new });
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413 conv_fn!(info_msg(message: &str) { InfoMsg::new });
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414 conv_fn!(binary_prompt(data: &[u8], data_type: u8) -> BinaryData { BinaryPrompt::ask });
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415 }
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416
74
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417 /// A [`Conversation`] which asks the questions one at a time.
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418 ///
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419 /// This is automatically created by [`SimpleConversation::as_conversation`].
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420 pub struct Demux<'a, SC: SimpleConversation>(&'a mut SC);
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421
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422 impl<SC: SimpleConversation> Conversation for Demux<'_, SC> {
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423 fn communicate(&mut self, messages: &[Message]) {
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424 for msg in messages {
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425 match msg {
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426 Message::Prompt(prompt) => prompt.set_answer(self.0.prompt(prompt.question())),
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427 Message::MaskedPrompt(prompt) => {
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428 prompt.set_answer(self.0.masked_prompt(prompt.question()))
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429 }
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430 Message::RadioPrompt(prompt) => {
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431 prompt.set_answer(self.0.radio_prompt(prompt.question()))
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432 }
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433 Message::InfoMsg(prompt) => {
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434 self.0.info_msg(prompt.question());
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435 prompt.set_answer(Ok(()))
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436 }
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437 Message::ErrorMsg(prompt) => {
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438 self.0.error_msg(prompt.question());
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439 prompt.set_answer(Ok(()))
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440 }
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441 Message::BinaryPrompt(prompt) => {
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442 let q = prompt.question();
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443 prompt.set_answer(self.0.binary_prompt(q.data, q.data_type))
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444 }
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445 }
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446 }
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447 }
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448 }
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449
69
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450 #[cfg(test)]
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451 mod tests {
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452 use super::{
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453 BinaryPrompt, Conversation, ErrorMsg, InfoMsg, MaskedPrompt, Message, Prompt, QAndA,
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454 RadioPrompt, Result, SecureString, SimpleConversation,
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455 };
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456 use crate::constants::ErrorCode;
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457 use crate::BinaryData;
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458
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459 #[test]
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460 fn test_demux() {
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461 #[derive(Default)]
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462 struct DemuxTester {
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463 error_ran: bool,
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464 info_ran: bool,
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465 }
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466
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467 impl SimpleConversation for DemuxTester {
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468 fn prompt(&mut self, request: &str) -> Result<String> {
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469 match request {
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470 "what" => Ok("whatwhat".to_owned()),
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471 "give_err" => Err(ErrorCode::PermissionDenied),
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472 _ => panic!("unexpected prompt!"),
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473 }
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474 }
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475 fn masked_prompt(&mut self, request: &str) -> Result<SecureString> {
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476 assert_eq!("reveal", request);
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477 Ok(SecureString::from("my secrets"))
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478 }
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479 fn radio_prompt(&mut self, request: &str) -> Result<String> {
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480 assert_eq!("channel?", request);
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481 Ok("zero".to_owned())
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482 }
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483 fn error_msg(&mut self, message: &str) {
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484 self.error_ran = true;
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485 assert_eq!("whoopsie", message);
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486 }
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487 fn info_msg(&mut self, message: &str) {
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488 self.info_ran = true;
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489 assert_eq!("did you know", message);
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490 }
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491 fn binary_prompt(&mut self, data: &[u8], data_type: u8) -> Result<BinaryData> {
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492 assert_eq!(&[10, 9, 8], data);
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493 assert_eq!(66, data_type);
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494 Ok(BinaryData::new(vec![5, 5, 5], 5))
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495 }
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496 }
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497
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498 let mut tester = DemuxTester::default();
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499
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500 let what = Prompt::ask("what");
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501 let pass = MaskedPrompt::ask("reveal");
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502 let err = ErrorMsg::new("whoopsie");
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503 let info = InfoMsg::new("did you know");
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504 let has_err = Prompt::ask("give_err");
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505
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506 let mut conv = tester.as_conversation();
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507
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508 // Basic tests.
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diff changeset
509
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diff changeset
510 conv.communicate(&[
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parents: 73
diff changeset
511 what.message(),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
512 pass.message(),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
513 err.message(),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
514 info.message(),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
515 has_err.message(),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
516 ]);
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
517
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
518 assert_eq!("whatwhat", what.answer().unwrap());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
519 assert_eq!(SecureString::from("my secrets"), pass.answer().unwrap());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
520 assert_eq!(Ok(()), err.answer());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
521 assert_eq!(Ok(()), info.answer());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
522 assert_eq!(ErrorCode::PermissionDenied, has_err.answer().unwrap_err());
70
9f8381a1c09c Implement low-level conversation primitives.
Paul Fisher <paul@pfish.zone>
parents: 69
diff changeset
523 assert!(tester.error_ran);
9f8381a1c09c Implement low-level conversation primitives.
Paul Fisher <paul@pfish.zone>
parents: 69
diff changeset
524 assert!(tester.info_ran);
9f8381a1c09c Implement low-level conversation primitives.
Paul Fisher <paul@pfish.zone>
parents: 69
diff changeset
525
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
526 // Test the Linux extensions separately.
70
9f8381a1c09c Implement low-level conversation primitives.
Paul Fisher <paul@pfish.zone>
parents: 69
diff changeset
527
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
528 let mut conv = tester.as_conversation();
70
9f8381a1c09c Implement low-level conversation primitives.
Paul Fisher <paul@pfish.zone>
parents: 69
diff changeset
529
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
530 let radio = RadioPrompt::ask("channel?");
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
531 let bin = BinaryPrompt::ask(&[10, 9, 8], 66);
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
532 conv.communicate(&[radio.message(), bin.message()]);
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
533
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
534 assert_eq!("zero", radio.answer().unwrap());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
535 assert_eq!(BinaryData::new(vec![5, 5, 5], 5), bin.answer().unwrap());
70
9f8381a1c09c Implement low-level conversation primitives.
Paul Fisher <paul@pfish.zone>
parents: 69
diff changeset
536 }
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
537
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
538 fn test_mux() {
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
539 struct MuxTester;
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
540
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
541 impl Conversation for MuxTester {
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
542 fn communicate(&mut self, messages: &[Message]) {
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
543 if let [msg] = messages {
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
544 match *msg {
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
545 Message::InfoMsg(info) => {
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
546 assert_eq!("let me tell you", info.question());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
547 info.set_answer(Ok(()))
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
548 }
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
549 Message::ErrorMsg(error) => {
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
550 assert_eq!("oh no", error.question());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
551 error.set_answer(Ok(()))
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
552 }
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
553 Message::Prompt(prompt) => prompt.set_answer(match prompt.question() {
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
554 "should_err" => Err(ErrorCode::PermissionDenied),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
555 "question" => Ok("answer".to_owned()),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
556 other => panic!("unexpected question {other:?}"),
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
557 }),
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
558 Message::MaskedPrompt(ask) => {
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
559 assert_eq!("password!", ask.question());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
560 ask.set_answer(Ok("open sesame".into()))
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
561 }
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
562 Message::BinaryPrompt(prompt) => {
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
563 assert_eq!(&[1, 2, 3], prompt.question().data);
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
564 assert_eq!(69, prompt.question().data_type);
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
565 prompt.set_answer(Ok(BinaryData::new(vec![3, 2, 1], 42)))
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
566 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
567 Message::RadioPrompt(ask) => {
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
568 assert_eq!("radio?", ask.question());
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
569 ask.set_answer(Ok("yes".to_owned()))
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
570 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
571 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
572 } else {
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
573 panic!(
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
574 "there should only be one message, not {len}",
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
575 len = messages.len()
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
576 )
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
577 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
578 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
579 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
580
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
581 let mut tester = MuxTester;
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
582
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
583 assert_eq!("answer", tester.prompt("question").unwrap());
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
584 assert_eq!(
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
585 SecureString::from("open sesame"),
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
586 tester.masked_prompt("password!").unwrap()
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
587 );
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
588 tester.error_msg("oh no");
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
589 tester.info_msg("let me tell you");
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
590 {
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
591 assert_eq!("yes", tester.radio_prompt("radio?").unwrap());
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
592 assert_eq!(
74
c7c596e6388f Make conversations type-safe (last big reorg) (REAL) (NOT CLICKBAIT)
Paul Fisher <paul@pfish.zone>
parents: 73
diff changeset
593 BinaryData::new(vec![3, 2, 1], 42),
73
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
594 tester.binary_prompt(&[1, 2, 3], 69).unwrap(),
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
595 )
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
596 }
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
597 assert_eq!(
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
598 ErrorCode::BufferError,
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
599 tester.prompt("should_error").unwrap_err(),
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
600 );
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
601 assert_eq!(
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
602 ErrorCode::ConversationError,
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
603 tester.masked_prompt("return_wrong_type").unwrap_err()
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
604 )
ac6881304c78 Do conversations, along with way too much stuff.
Paul Fisher <paul@pfish.zone>
parents: 72
diff changeset
605 }
69
8f3ae0c7ab92 Rework conversation data types and make safe wrappers.
Paul Fisher <paul@pfish.zone>
parents: 64
diff changeset
606 }