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148
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #define PERL_NO_GET_CONTEXT
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8
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9 #include "EXTERN.h"
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10 #include "perl.h"
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11 #include "XSUB.h"
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12
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13 #include <ngx_config.h>
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14 #include <ngx_core.h>
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15 #include <ngx_http.h>
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16 #include <ngx_http_perl_module.h>
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17
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18
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19 static ngx_int_t
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20 ngx_http_perl_sv2str(pTHX_ ngx_http_request_t *r, ngx_str_t *s, SV *sv)
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21 {
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22 u_char *p;
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23 STRLEN len;
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24
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25 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
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26 sv = SvRV(sv);
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27 }
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28
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29 p = (u_char *) SvPV(sv, len);
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30
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31 s->len = len;
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32
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33 if (SvREADONLY(sv)) {
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34 s->data = p;
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35 return NGX_OK;
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36 }
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37
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38 s->data = ngx_palloc(r->pool, len);
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39 if (s->data == NULL) {
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40 return NGX_ERROR;
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41 }
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42
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43 ngx_memcpy(s->data, p, len);
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44
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45 return NGX_OK;
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46 }
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47
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48
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49 static ngx_int_t
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50 ngx_http_perl_output(ngx_http_request_t *r, ngx_buf_t *b)
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51 {
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52 ngx_chain_t *cl, out;
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53 ngx_http_perl_ctx_t *ctx;
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54
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55 ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module);
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56
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57 if (ctx->ssi) {
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58 cl = ngx_alloc_chain_link(r->pool);
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59 if (cl == NULL) {
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60 return NGX_ERROR;
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61 }
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62
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63 cl->buf = b;
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64 cl->next = NULL;
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65 *ctx->ssi->last_out = cl;
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66 ctx->ssi->last_out = &cl->next;
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67
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68 return NGX_OK;
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69 }
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70
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71 out.buf = b;
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72 out.next = NULL;
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73
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74 return ngx_http_output_filter(r, &out);
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75 }
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76
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77
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78 MODULE = nginx PACKAGE = nginx
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79
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80
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81 int
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82 send_http_header(r, ...)
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83 nginx r
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84
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85 PREINIT:
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86
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87 SV *sv;
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88
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89 CODE:
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90
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91 if (r->headers_out.status == 0) {
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92 r->headers_out.status = NGX_HTTP_OK;
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93 }
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94
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95 if (items != 1) {
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96 sv = ST(1);
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97
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98 if (ngx_http_perl_sv2str(aTHX_ r, &r->headers_out.content_type, sv)
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99 != NGX_OK)
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100 {
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101 RETVAL = NGX_ERROR;
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102 goto done;
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103 }
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104
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105 } else {
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106 if (r->headers_out.content_type.len == 0) {
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107 if (ngx_http_set_content_type(r) != NGX_OK) {
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108 RETVAL = NGX_ERROR;
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109 goto done;
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110 }
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111 }
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112 }
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113
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114 RETVAL = ngx_http_send_header(r);
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115
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116 done:
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117
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118 OUTPUT:
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119 RETVAL
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120
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121
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122 int
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123 header_only(r)
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124 nginx r
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125
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126 CODE:
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127 RETVAL = r->header_only;
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128
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129 OUTPUT:
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130 RETVAL
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131
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132
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133 # The returning "char *" is more quickly than creating SV, because SV returned
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134 # from XS is never used as permanent storage. Even in simple case:
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135 # "$uri = $r->uri" the SV returned by $r->uri is copied to $uri's SV.
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136
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137 char *
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138 uri(r, ...)
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139 nginx r
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140
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141 CODE:
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142
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143 if (items != 1) {
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144 croak("$r->uri(text) is not implemented");
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145 }
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146
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147 RETVAL = ngx_palloc(r->pool, r->uri.len + 1);
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148 if (RETVAL == NULL) {
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149 XSRETURN_UNDEF;
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150 }
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151
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152 ngx_cpystrn((u_char *) RETVAL, r->uri.data, r->uri.len + 1);
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153
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154 OUTPUT:
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155 RETVAL
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156
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157
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158 char *
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159 query_string(r, ...)
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160 nginx r
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161
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162 CODE:
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163
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164 if (items != 1) {
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165 croak("$r->query_string(text) is not implemented");
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166 }
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167
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168 RETVAL = ngx_palloc(r->pool, r->args.len + 1);
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169 if (RETVAL == NULL) {
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170 XSRETURN_UNDEF;
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171 }
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172
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173 ngx_cpystrn((u_char *) RETVAL, r->args.data, r->args.len + 1);
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174
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175 OUTPUT:
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176 RETVAL
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177
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178
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179 char *
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180 header_in(r, key)
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181 nginx r
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182 SV *key
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183
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184 PREINIT:
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185
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186 u_char *p;
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187 STRLEN len;
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188 ngx_uint_t i;
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189 ngx_list_part_t *part;
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190 ngx_table_elt_t *header;
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191
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192 CODE:
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193
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194 if (SvROK(key) && SvTYPE(SvRV(key)) == SVt_PV) {
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195 key = SvRV(key);
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196 }
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197
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198 p = (u_char *) SvPV(key, len);
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199
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200 part = &r->headers_in.headers.part;
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201 header = part->elts;
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202
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203 for (i = 0; /* void */ ; i++) {
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204
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205 if (i >= part->nelts) {
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206 if (part->next == NULL) {
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207 break;
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208 }
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209
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210 part = part->next;
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211 header = part->elts;
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212 i = 0;
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213 }
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214
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215 if (len != header[i].key.len
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216 || ngx_strcasecmp(p, header[i].key.data) != 0)
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217 {
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218 continue;
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219 }
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220
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221 RETVAL = (char *) header[i].value.data;
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222
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223 goto done;
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224 }
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225
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226 XSRETURN_UNDEF;
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227
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228 done:
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229
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230 OUTPUT:
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231 RETVAL
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232
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233
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234 int
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235 header_out(r, key, value)
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236 nginx r
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237 SV *key
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238 SV *value
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239
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240 PREINIT:
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241
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242 ngx_table_elt_t *header;
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243
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244 CODE:
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245
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246 header = ngx_list_push(&r->headers_out.headers);
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247 if (header == NULL) {
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248 RETVAL = NGX_ERROR;
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249 goto done;
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250 }
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251
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252 header->hash = 1;
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253
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254 if (ngx_http_perl_sv2str(aTHX_ r, &header->key, key) != NGX_OK) {
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255 RETVAL = NGX_ERROR;
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256 goto done;
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257 }
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258
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259 if (ngx_http_perl_sv2str(aTHX_ r, &header->value, value) != NGX_OK) {
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260 RETVAL = NGX_ERROR;
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261 goto done;
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262 }
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263
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264 if (header->key.len == sizeof("Content-Length") - 1
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265 && ngx_strncasecmp(header->key.data, "Content-Length",
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266 sizeof("Content-Length") - 1) == 0
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267 && SvIOK(value))
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268 {
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269 r->headers_out.content_length_n = (ssize_t) SvIV(value);;
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270 r->headers_out.content_length = header;
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271 }
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272
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273 RETVAL = NGX_OK;
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274
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275 done:
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276
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277 OUTPUT:
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278 RETVAL
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279
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280
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281 char *
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282 filename(r)
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283 nginx r
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284
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285 PREINIT:
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286
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287 ngx_str_t path;
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288 ngx_http_perl_ctx_t *ctx;
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289
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290 CODE:
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291
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292 ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module);
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293 if (ctx->filename) {
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294 goto done;
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295 }
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296
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297 if (ngx_http_map_uri_to_path(r, &path, 0) == NULL) {
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298 XSRETURN_UNDEF;
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299 }
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300
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301 ctx->filename = (char *) path.data;
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302
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303 sv_setpv(PL_statname, ctx->filename);
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304
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305 done:
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306
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307 RETVAL = ctx->filename;
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308
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309 OUTPUT:
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310 RETVAL
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311
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312
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313 int
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314 print(r, ...)
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315 nginx r
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316
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317 PREINIT:
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318
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319 SV *sv;
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320 int i;
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321 u_char *p;
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322 size_t size;
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323 STRLEN len;
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324 ngx_buf_t *b;
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325
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326 CODE:
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327
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328 RETVAL = NGX_OK;
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329
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330 if (items == 2) {
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331
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332 /*
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333 * do zero copy for prolate single read-only SV:
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334 * $r->print("some text\n");
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335 */
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336
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337 sv = ST(1);
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338
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339 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
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340 sv = SvRV(sv);
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341 }
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342
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343 if (SvREADONLY(sv)) {
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344
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345 p = (u_char *) SvPV(sv, len);
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346
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347 if (len == 0) {
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348 goto done;
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349 }
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350
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351 b = ngx_calloc_buf(r->pool);
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352 if (b == NULL) {
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353 RETVAL = NGX_ERROR;
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354 goto done;
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355 }
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356
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357 b->memory = 1;
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358 b->pos = p;
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359 b->last = p + len;
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360 b->start = p;
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361 b->end = b->last;
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362
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363 goto out;
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364 }
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365 }
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366
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367 size = 0;
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368
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369 for (i = 1; i < items; i++) {
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370
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371 sv = ST(i);
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372
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373 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
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374 sv = SvRV(sv);
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375 }
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376
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377 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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378 "SV: %p %d %Xd",
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379 sv, SvREFCNT(sv), SvREADONLY(sv));
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380
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381 (void) SvPV(sv, len);
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382
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383 size += len;
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384 }
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385
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386 if (size == 0) {
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387 goto done;
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388 }
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389
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390 b = ngx_create_temp_buf(r->pool, size);
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391 if (b == NULL) {
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392 RETVAL = NGX_ERROR;
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393 goto done;
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394 }
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395
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396 for (i = 1; i < items; i++) {
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397 sv = ST(i);
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398
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399 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
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400 sv = SvRV(sv);
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401 }
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402
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403 p = (u_char *) SvPV(sv, len);
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404 b->last = ngx_cpymem(b->last, p, len);
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405 }
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406
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407 out:
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408
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409 RETVAL = ngx_http_perl_output(r, b);
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410
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411 done:
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412
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413 OUTPUT:
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414 RETVAL
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415
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416
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417 int
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418 sendfile(r, filename)
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419 nginx r
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420 char *filename
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421
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422 PREINIT:
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423
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424 ngx_fd_t fd;
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425 ngx_buf_t *b;
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426 ngx_file_info_t fi;
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427 ngx_pool_cleanup_t *cln;
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428 ngx_pool_cleanup_file_t *clnf;
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429
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430 CODE:
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431
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432 if (filename == NULL) {
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433 croak("sendfile(): NULL filename");
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434 }
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435
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436 b = ngx_calloc_buf(r->pool);
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437 if (b == NULL) {
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438 RETVAL = NGX_ERROR;
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439 goto done;
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440 }
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441
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442 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
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443 if (b->file == NULL) {
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444 RETVAL = NGX_ERROR;
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445 goto done;
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446 }
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447
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448 cln = ngx_pool_cleanup_add(r->pool, sizeof(ngx_pool_cleanup_file_t));
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449 if (cln == NULL) {
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450 RETVAL = NGX_ERROR;
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451 goto done;
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452 }
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453
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454 fd = ngx_open_file((u_char *) filename, NGX_FILE_RDONLY, NGX_FILE_OPEN);
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455
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456 if (fd == NGX_INVALID_FILE) {
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457 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
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458 ngx_open_file_n " \"%s\" failed", filename);
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459 RETVAL = NGX_ERROR;
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460 goto done;
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461 }
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462
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463 if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) {
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464 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
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465 ngx_fd_info_n " \"%s\" failed", filename);
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466
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467 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
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|
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468 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
|
|
|
469 ngx_close_file_n " \"%s\" failed", filename);
|
|
|
470 }
|
|
|
471
|
|
|
472 RETVAL = NGX_ERROR;
|
|
|
473 goto done;
|
|
|
474 }
|
|
|
475
|
|
|
476 cln->handler = ngx_pool_cleanup_file;
|
|
|
477 clnf = cln->data;
|
|
|
478
|
|
|
479 clnf->fd = fd;
|
|
|
480 clnf->name = (u_char *) "";
|
|
|
481 clnf->log = r->pool->log;
|
|
|
482
|
|
|
483 b->in_file = 1;
|
|
|
484 b->file_pos = 0;
|
|
|
485 b->file_last = ngx_file_size(&fi);
|
|
|
486
|
|
|
487 b->file->fd = fd;
|
|
|
488 b->file->log = r->connection->log;
|
|
|
489
|
|
|
490 RETVAL = ngx_http_perl_output(r, b);
|
|
|
491
|
|
|
492 done:
|
|
|
493
|
|
|
494 OUTPUT:
|
|
|
495 RETVAL
|
|
|
496
|
|
|
497
|
|
|
498 int
|
|
|
499 rflush(r)
|
|
|
500 nginx r
|
|
|
501
|
|
|
502 PREINIT:
|
|
|
503
|
|
|
504 ngx_buf_t *b;
|
|
|
505
|
|
|
506 CODE:
|
|
|
507
|
|
|
508 b = ngx_calloc_buf(r->pool);
|
|
|
509 if (b == NULL) {
|
|
|
510 RETVAL = NGX_ERROR;
|
|
|
511 goto done;
|
|
|
512 }
|
|
|
513
|
|
|
514 b->flush = 1;
|
|
|
515
|
|
|
516 RETVAL = ngx_http_perl_output(r, b);
|
|
|
517
|
|
|
518 done:
|
|
|
519
|
|
|
520 OUTPUT:
|
|
|
521 RETVAL
|
|
|
522
|
|
|
523
|
|
|
524 void
|
|
|
525 internal_redirect(r, uri)
|
|
|
526 nginx r
|
|
|
527 SV *uri
|
|
|
528
|
|
|
529 PREINIT:
|
|
|
530
|
|
|
531 ngx_uint_t i;
|
|
|
532 ngx_http_perl_ctx_t *ctx;
|
|
|
533
|
|
|
534 CODE:
|
|
|
535
|
|
|
536 ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module);
|
|
|
537
|
|
|
538 if (ngx_http_perl_sv2str(aTHX_ r, &ctx->redirect_uri, uri) != NGX_OK) {
|
|
|
539 XSRETURN_EMPTY;
|
|
|
540 }
|
|
|
541
|
|
|
542 for (i = 0; i < ctx->redirect_uri.len; i++) {
|
|
|
543 if (ctx->redirect_uri.data[i] == '?') {
|
|
|
544
|
|
|
545 ctx->redirect_args.len = ctx->redirect_uri.len - (i + 1);
|
|
|
546 ctx->redirect_args.data = &ctx->redirect_uri.data[i + 1];
|
|
|
547 ctx->redirect_uri.len = i;
|
|
|
548
|
|
|
549 XSRETURN_EMPTY;
|
|
|
550 }
|
|
|
551 }
|
