Mercurial > prosody-hg

annotate spec/util_ringbuffer_spec.lua @ 14205:a874c3f4570a 13.0

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util.startup: Always apply umask (thanks Max Hearnden) Commit c673ff1075bd removed mod_posix, and moved functionality into util.startup, including applying a secure umask at runtime. However, the new function was not called from the startup sequence, leading Prosody to run with whatever umask it inherited from the environment. Prosody Debian packages ship with a secure umask 027 in the systemd unit file for the prosody service, so Debian systems using systemd are not affected. prosodyctl calls the switch_user() function during startup, which would set the umask, so prosodyctl commands which created files were unaffected. This change makes both prosody and prosodyctl unconditionally set a secure umask during the startup process.
author Matthew Wild <mwild1@gmail.com>
date Thu, 28 May 2026 17:25:46 +0100
parents 67b68147ed1d
children
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rev   line source
10897
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1 local rb = require "util.ringbuffer";
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2 describe("util.ringbuffer", function ()
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3 describe("#new", function ()
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4 it("has a constructor", function ()
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5 assert.Function(rb.new);
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6 end);
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7 it("can be created", function ()
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8 assert.truthy(rb.new());
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9 end);
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10 it("won't create an empty buffer", function ()
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11 assert.has_error(function ()
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12 rb.new(0);
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13 end);
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14 end);
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15 it("won't create a negatively sized buffer", function ()
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16 assert.has_error(function ()
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17 rb.new(-1);
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18 end);
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19 end);
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20 end);
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21 describe(":write", function ()
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22 local b = rb.new();
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23 it("works", function ()
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24 assert.truthy(b:write("hi"));
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25 end);
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26 end);
10949
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27
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28 describe(":discard", function ()
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29 local b = rb.new();
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30 it("works", function ()
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31 assert.truthy(b:write("hello world"));
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32 assert.truthy(b:discard(6));
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33 assert.equal(5, #b);
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34 assert.equal("world", b:read(5));
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35 end);
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36 end);
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37
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38 describe(":find", function ()
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39 local function test_find(b, str, expected)
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40 if expected ~= nil then
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41 assert.equal(expected, b:find(str));
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42 else
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43 assert.is_nil(b:find(str));
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44 end
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45 end
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46
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47 it("works", function ()
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48 local b = rb.new();
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49 assert.truthy(b:write("hello world"));
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50 test_find(b, "world", 7);
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51 end);
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52
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53 it("works across wraps", function ()
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54 local b = rb.new(5);
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55 assert.truthy(b:write("12345"));
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56 assert.equal("123", b:read(3));
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57 assert.truthy(b:write("678"));
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58 test_find(b, "45678", 1);
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59 test_find(b, "567", 2);
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60 test_find(b, "56", 2);
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61 test_find(b, "5", 2);
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62 test_find(b, "6", 3);
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63 test_find(b, "7", 4);
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64 test_find(b, "8", 5);
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65 test_find(b, "9", nil);
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66 end);
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67
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68 it("no match when the needle is larger than the buffer", function ()
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69 for i = 5, 11 do
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70 local b = rb.new(i);
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71 assert.truthy(b:write("hello"));
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72 test_find(b, "hello world", nil);
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73 end
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74 end);
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75
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76 it("no match when the needle is an empty string", function ()
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77 local b = rb.new(5);
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78 assert.truthy(b:write("hello"));
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79 test_find(b, "", nil);
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80 end);
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81 end);
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82
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83 describe(":sub", function ()
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84 -- Helper function to compare buffer:sub() with string:sub()
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85 local function test_sub(b, x, y)
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86 local s = b:read(#b, true);
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87 local string_result, buffer_result = s:sub(x, y), b:sub(x, y);
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88 assert.equals(string_result, buffer_result, ("buffer:sub(%d, %s) does not match string:sub()"):format(x, y and ("%d"):format(y) or "nil"));
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89 end
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90
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91 it("works", function ()
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92 local b = rb.new();
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93 assert.truthy(b:write("hello world"));
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94 assert.equals("hello", b:sub(1, 5));
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95 end);
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96
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97 it("supports optional end parameter", function ()
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98 local b = rb.new();
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99 assert.truthy(b:write("hello world"));
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100 assert.equals("hello world", b:sub(1));
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101 assert.equals("world", b:sub(-5));
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102 end);
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103
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104 it("is equivalent to string:sub", function ()
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105 local b = rb.new(6);
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106 assert.truthy(b:write("foobar"));
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107 b:read(3);
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108 b:write("foo");
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109 for i = -13, 13 do
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110 for j = -13, 13 do
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111 test_sub(b, i, j);
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112 end
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113 end
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114 end);
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115 end);
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116
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117 describe(":byte", function ()
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118 -- Helper function to compare buffer:byte() with string:byte()
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119 local function test_byte(b, x, y)
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120 local s = b:read(#b, true);
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121 local string_result, buffer_result = {s:byte(x, y)}, {b:byte(x, y)};
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122 assert.same(string_result, buffer_result, ("buffer:byte(%d, %s) does not match string:byte()"):format(x, y and ("%d"):format(y) or "nil"));
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123 end
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124
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125 it("is equivalent to string:byte", function ()
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126 local b = rb.new(6);
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127 assert.truthy(b:write("foobar"));
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128 b:read(3);
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129 b:write("foo");
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130 test_byte(b, 1);
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131 test_byte(b, 3);
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Matthew Wild <mwild1@gmail.com>
parents: 10899
diff changeset
132 test_byte(b, -1);
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Matthew Wild <mwild1@gmail.com>
parents: 10899
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133 test_byte(b, -3);
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Matthew Wild <mwild1@gmail.com>
parents: 10899
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134 for i = -13, 13 do
5e33926f4b43 util.ringbuffer: Add :sub() and :byte() methods equivalent to the string methods
Matthew Wild <mwild1@gmail.com>
parents: 10899
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135 for j = -13, 13 do
5e33926f4b43 util.ringbuffer: Add :sub() and :byte() methods equivalent to the string methods
Matthew Wild <mwild1@gmail.com>
parents: 10899
diff changeset
136 test_byte(b, i, j);
5e33926f4b43 util.ringbuffer: Add :sub() and :byte() methods equivalent to the string methods
Matthew Wild <mwild1@gmail.com>
parents: 10899
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137 end
5e33926f4b43 util.ringbuffer: Add :sub() and :byte() methods equivalent to the string methods
Matthew Wild <mwild1@gmail.com>
parents: 10899
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138 end
5e33926f4b43 util.ringbuffer: Add :sub() and :byte() methods equivalent to the string methods
Matthew Wild <mwild1@gmail.com>
parents: 10899
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139 end);
10953
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
Matthew Wild <mwild1@gmail.com>
parents: 10949
diff changeset
140
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
Matthew Wild <mwild1@gmail.com>
parents: 10949
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141 it("works with characters > 127", function ()
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
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parents: 10949
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142 local b = rb.new();
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
Matthew Wild <mwild1@gmail.com>
parents: 10949
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143 b:write(string.char(0, 140));
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
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parents: 10949
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144 local r = { b:byte(1, 2) };
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
Matthew Wild <mwild1@gmail.com>
parents: 10949
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145 assert.same({ 0, 140 }, r);
c3b3ac63f4c3 util.ringbuffer: Ensure unsigned chars are always returned from :byte()
Matthew Wild <mwild1@gmail.com>
parents: 10949
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146 end);
10901
5e33926f4b43 util.ringbuffer: Add :sub() and :byte() methods equivalent to the string methods
Matthew Wild <mwild1@gmail.com>
parents: 10899
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147 end);
10897
37df1e757f02 util.ringbuffer: Add some initial tests
Kim Alvefur <zash@zash.se>
parents:
diff changeset
148 end);