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7681
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1
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2 /*
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3 * Copyright (C) Roman Arutyunyan
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 static ngx_array_t *ngx_http_v3_get_dynamic_table(ngx_connection_t *c);
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14 static ngx_int_t ngx_http_v3_new_header(ngx_connection_t *c);
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15
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16
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17 static ngx_http_v3_header_t ngx_http_v3_static_table[] = {
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18
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19 { ngx_string(":authority"), ngx_string("") },
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20 { ngx_string(":path"), ngx_string("/") },
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21 { ngx_string("age"), ngx_string("0") },
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22 { ngx_string("content-disposition"), ngx_string("") },
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23 { ngx_string("content-length"), ngx_string("0") },
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24 { ngx_string("cookie"), ngx_string("") },
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25 { ngx_string("date"), ngx_string("") },
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26 { ngx_string("etag"), ngx_string("") },
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27 { ngx_string("if-modified-since"), ngx_string("") },
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28 { ngx_string("if-none-match"), ngx_string("") },
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29 { ngx_string("last-modified"), ngx_string("") },
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30 { ngx_string("link"), ngx_string("") },
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31 { ngx_string("location"), ngx_string("") },
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32 { ngx_string("referer"), ngx_string("") },
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33 { ngx_string("set-cookie"), ngx_string("") },
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34 { ngx_string(":method"), ngx_string("CONNECT") },
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35 { ngx_string(":method"), ngx_string("DELETE") },
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36 { ngx_string(":method"), ngx_string("GET") },
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37 { ngx_string(":method"), ngx_string("HEAD") },
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38 { ngx_string(":method"), ngx_string("OPTIONS") },
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39 { ngx_string(":method"), ngx_string("POST") },
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40 { ngx_string(":method"), ngx_string("PUT") },
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41 { ngx_string(":scheme"), ngx_string("http") },
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42 { ngx_string(":scheme"), ngx_string("https") },
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43 { ngx_string(":status"), ngx_string("103") },
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44 { ngx_string(":status"), ngx_string("200") },
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45 { ngx_string(":status"), ngx_string("304") },
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46 { ngx_string(":status"), ngx_string("404") },
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47 { ngx_string(":status"), ngx_string("503") },
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48 { ngx_string("accept"), ngx_string("*/*") },
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49 { ngx_string("accept"),
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50 ngx_string("application/dns-message ") },
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51 { ngx_string("accept-encoding"), ngx_string("gzip,") },
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52 { ngx_string("accept-ranges"), ngx_string("bytes") },
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53 { ngx_string("access-control-allow-headers"),
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54 ngx_string("cache-control") },
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55 { ngx_string("access-control-allow-headers"),
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56 ngx_string("content-type") },
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57 { ngx_string("access-control-allow-origin"),
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58 ngx_string("*") },
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59 { ngx_string("cache-control"), ngx_string("max-age=0") },
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60 { ngx_string("cache-control"), ngx_string("max-age=2592000") },
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61 { ngx_string("cache-control"), ngx_string("max-age=604800") },
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62 { ngx_string("cache-control"), ngx_string("no-cache") },
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63 { ngx_string("cache-control"), ngx_string("no-store") },
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64 { ngx_string("cache-control"),
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65 ngx_string("public, max-age=31536000 ") },
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66 { ngx_string("content-encoding"), ngx_string("br") },
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67 { ngx_string("content-encoding"), ngx_string("gzip") },
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68 { ngx_string("content-type"),
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69 ngx_string("application/dns-message") },
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70 { ngx_string("content-type"),
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71 ngx_string("application/javascript") },
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72 { ngx_string("content-type"), ngx_string("application/json") },
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73 { ngx_string("content-type"),
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74 ngx_string("application/x-www-form-urlencoded") },
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75 { ngx_string("content-type"), ngx_string("image/gif") },
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76 { ngx_string("content-type"), ngx_string("image/jpeg") },
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77 { ngx_string("content-type"), ngx_string("image/png") },
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78 { ngx_string("content-type"), ngx_string("text/css") },
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79 { ngx_string("content-type"),
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80 ngx_string("text/html;charset=utf-8") },
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81 { ngx_string("content-type"), ngx_string("text/plain") },
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82 { ngx_string("content-type"),
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83 ngx_string("text/plain;charset=utf-8") },
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84 { ngx_string("range"), ngx_string("bytes=0-") },
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85 { ngx_string("strict-transport-security"),
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86 ngx_string("max-age=31536000") },
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87 { ngx_string("strict-transport-security"),
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88 ngx_string("max-age=31536000;includesubdomains") },
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89 { ngx_string("strict-transport-security"),
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90 ngx_string("max-age=31536000;includesubdomains;preload") },
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91 { ngx_string("vary"), ngx_string("accept-encoding") },
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92 { ngx_string("vary"), ngx_string("origin") },
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93 { ngx_string("x-content-type-options"),ngx_string("nosniff") },
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94 { ngx_string("x-xss-protection"), ngx_string("1;mode=block") },
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95 { ngx_string(":status"), ngx_string("100") },
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96 { ngx_string(":status"), ngx_string("204") },
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97 { ngx_string(":status"), ngx_string("206") },
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98 { ngx_string(":status"), ngx_string("302") },
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99 { ngx_string(":status"), ngx_string("400") },
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100 { ngx_string(":status"), ngx_string("403") },
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101 { ngx_string(":status"), ngx_string("421") },
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102 { ngx_string(":status"), ngx_string("425") },
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103 { ngx_string(":status"), ngx_string("500") },
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104 { ngx_string("accept-language"), ngx_string("") },
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105 { ngx_string("access-control-allow-credentials"),
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106 ngx_string("FALSE") },
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107 { ngx_string("access-control-allow-credentials"),
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108 ngx_string("TRUE") },
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109 { ngx_string("access-control-allow-headers"),
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110 ngx_string("*") },
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111 { ngx_string("access-control-allow-methods"),
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112 ngx_string("get") },
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113 { ngx_string("access-control-allow-methods"),
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114 ngx_string("get, post, options") },
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115 { ngx_string("access-control-allow-methods"),
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116 ngx_string("options") },
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117 { ngx_string("access-control-expose-headers"),
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118 ngx_string("content-length") },
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119 { ngx_string("access-control-request-headers"),
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120 ngx_string("content-type") },
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121 { ngx_string("access-control-request-method"),
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122 ngx_string("get") },
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123 { ngx_string("access-control-request-method"),
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124 ngx_string("post") },
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125 { ngx_string("alt-svc"), ngx_string("clear") },
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126 { ngx_string("horization"), ngx_string("") },
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127 { ngx_string("content-security-policy"),
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128 ngx_string("script-src") },
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129 { ngx_string("early-data"), ngx_string("1") },
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130 { ngx_string("expect-ct"), ngx_string("") },
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131 { ngx_string("forwarded"), ngx_string("") },
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132 { ngx_string("if-range"), ngx_string("") },
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133 { ngx_string("origin"), ngx_string("") },
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134 { ngx_string("purpose"), ngx_string("prefetch") },
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135 { ngx_string("server"), ngx_string("") },
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136 { ngx_string("timing-allow-origin"), ngx_string("*") },
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137 { ngx_string("upgrade-insecure-requests"),
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138 ngx_string("1") },
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139 { ngx_string("user-agent"), ngx_string("") },
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140 { ngx_string("x-forwarded-for"), ngx_string("") },
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141 { ngx_string("x-frame-options"), ngx_string("deny") },
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142 { ngx_string("x-frame-options"), ngx_string("sameorigin") }
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143 };
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144
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145
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146 ngx_int_t
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147 ngx_http_v3_ref_insert(ngx_connection_t *c, ngx_uint_t dynamic,
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148 ngx_uint_t index, ngx_str_t *value)
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149 {
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150 ngx_array_t *dt;
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151 ngx_http_v3_header_t *ref, *h;
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152
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153 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
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154 "http3 ref insert %s[$ui] \"%V\"",
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155 dynamic ? "dynamic" : "static", index, value);
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156
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157 ref = ngx_http_v3_lookup_table(c, dynamic, index);
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158 if (ref == NULL) {
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159 return NGX_ERROR;
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160 }
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161
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162 dt = ngx_http_v3_get_dynamic_table(c);
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163 if (dt == NULL) {
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164 return NGX_ERROR;
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165 }
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166
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167 h = ngx_array_push(dt);
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168 if (h == NULL) {
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169 return NGX_ERROR;
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170 }
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171
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172 h->name = ref->name;
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173 h->value = *value;
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174
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175 if (ngx_http_v3_new_header(c) != NGX_OK) {
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176 return NGX_ERROR;
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177 }
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178
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179 return NGX_OK;
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180 }
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181
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182
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183 ngx_int_t
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184 ngx_http_v3_insert(ngx_connection_t *c, ngx_str_t *name,
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185 ngx_str_t *value)
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186 {
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187 ngx_array_t *dt;
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188 ngx_http_v3_header_t *h;
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189
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190 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
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191 "http3 insert \"%V\":\"%V\"", name, value);
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192
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193 dt = ngx_http_v3_get_dynamic_table(c);
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194 if (dt == NULL) {
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195 return NGX_ERROR;
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196 }
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197
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198 h = ngx_array_push(dt);
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199 if (h == NULL) {
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200 return NGX_ERROR;
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201 }
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202
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203 h->name = *name;
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204 h->value = *value;
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205
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206 if (ngx_http_v3_new_header(c) != NGX_OK) {
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207 return NGX_ERROR;
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208 }
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209
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210 return NGX_OK;
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211 }
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212
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213
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214 ngx_int_t
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215 ngx_http_v3_set_capacity(ngx_connection_t *c, ngx_uint_t capacity)
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216 {
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217 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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218 "http3 set capacity %ui", capacity);
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219
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220 /* XXX ignore capacity */
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221
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222 return NGX_OK;
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223 }
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224
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225
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226 ngx_int_t
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227 ngx_http_v3_duplicate(ngx_connection_t *c, ngx_uint_t index)
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228 {
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229 ngx_array_t *dt;
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230 ngx_http_v3_header_t *ref, *h;
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231
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232 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 duplicate %ui", index);
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233
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234 ref = ngx_http_v3_lookup_table(c, 1, index);
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235 if (ref == NULL) {
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236 return NGX_ERROR;
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237 }
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238
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239 dt = ngx_http_v3_get_dynamic_table(c);
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240 if (dt == NULL) {
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241 return NGX_ERROR;
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242 }
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243
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244 h = ngx_array_push(dt);
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245 if (h == NULL) {
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246 return NGX_ERROR;
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247 }
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248
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249 *h = *ref;
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250
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251 if (ngx_http_v3_new_header(c) != NGX_OK) {
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252 return NGX_ERROR;
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253 }
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254
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255 return NGX_OK;
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256 }
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257
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258
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259 ngx_int_t
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260 ngx_http_v3_ack_header(ngx_connection_t *c, ngx_uint_t stream_id)
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261 {
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262 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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263 "http3 ack header %ui", stream_id);
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264
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265 /* XXX */
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266
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267 return NGX_OK;
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268 }
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269
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270
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271 ngx_int_t
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272 ngx_http_v3_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id)
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273 {
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274 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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275 "http3 cancel stream %ui", stream_id);
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276
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277 /* XXX */
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278
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279 return NGX_OK;
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280 }
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281
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282
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283 ngx_int_t
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284 ngx_http_v3_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc)
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285 {
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286 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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287 "http3 increment insert count %ui", inc);
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288
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289 /* XXX */
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290
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291 return NGX_OK;
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292 }
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293
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294
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295 static ngx_array_t *
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296 ngx_http_v3_get_dynamic_table(ngx_connection_t *c)
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297 {
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298 ngx_connection_t *pc;
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299 ngx_http_v3_connection_t *h3c;
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300
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301 pc = c->qs->parent;
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302 h3c = pc->data;
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303
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304 if (h3c->dynamic) {
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305 return h3c->dynamic;
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306 }
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307
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308 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 create dynamic table");
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309
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310 h3c->dynamic = ngx_array_create(pc->pool, 1, sizeof(ngx_http_v3_header_t));
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311
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312 return h3c->dynamic;
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313 }
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314
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315
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316 ngx_http_v3_header_t *
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317 ngx_http_v3_lookup_table(ngx_connection_t *c, ngx_uint_t dynamic,
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318 ngx_uint_t index)
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319 {
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320 ngx_uint_t nelts;
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321 ngx_array_t *dt;
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322 ngx_http_v3_header_t *table;
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323
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324 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 lookup %s[%ui]",
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325 dynamic ? "dynamic" : "static", index);
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326
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327 if (dynamic) {
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328 dt = ngx_http_v3_get_dynamic_table(c);
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329 if (dt == NULL) {
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330 return NULL;
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331 }
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332
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333 table = dt->elts;
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334 nelts = dt->nelts;
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335
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336 } else {
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337 table = ngx_http_v3_static_table;
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338 nelts = sizeof(ngx_http_v3_static_table)
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339 / sizeof(ngx_http_v3_static_table[0]);
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340 }
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341
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342 if (index >= nelts) {
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343 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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344 "http3 lookup out of bounds: %ui", nelts);
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345 return NULL;
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346 }
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347
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348 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 lookup \"%V\":\"%V\"",
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349 &table[index].name, &table[index].value);
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350
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351 return &table[index];
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352 }
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353
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354
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355 ngx_int_t
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356 ngx_http_v3_check_insert_count(ngx_connection_t *c, ngx_uint_t insert_count)
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357 {
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358 size_t n;
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359 ngx_http_v3_connection_t *h3c;
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360
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361 h3c = c->qs->parent->data;
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362 n = h3c->dynamic ? h3c->dynamic->nelts : 0;
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363
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364 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
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365 "http3 check insert count %ui/%ui", insert_count, n);
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366
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367 if (n < insert_count) {
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368 /* XXX how to get notified? */
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369 /* XXX wake all streams on any arrival to the encoder stream? */
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370 return NGX_AGAIN;
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371 }
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372
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373 return NGX_OK;
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374 }
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375
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376
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377 static ngx_int_t
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378 ngx_http_v3_new_header(ngx_connection_t *c)
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379 {
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380 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 new dynamic header");
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381
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382 /* XXX report all waiting streams of a new header */
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383
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384 return NGX_OK;
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385 }
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