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392
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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 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11 #include <libxml/parser.h>
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12 #include <libxml/tree.h>
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13 #include <libxslt/xslt.h>
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14 #include <libxslt/xsltInternals.h>
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15 #include <libxslt/transform.h>
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16 #include <libxslt/xsltutils.h>
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17
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418
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18 #if (NGX_HAVE_EXSLT)
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19 #include <libexslt/exslt.h>
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20 #endif
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21
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392
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22
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23 #ifndef NGX_HTTP_XSLT_REUSE_DTD
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24 #define NGX_HTTP_XSLT_REUSE_DTD 1
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25 #endif
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26
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27
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28 typedef struct {
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394
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29 u_char *name;
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30 void *data;
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31 } ngx_http_xslt_file_t;
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32
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33
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34 typedef struct {
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35 ngx_array_t dtd_files; /* ngx_http_xslt_file_t */
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36 ngx_array_t sheet_files; /* ngx_http_xslt_file_t */
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37 } ngx_http_xslt_filter_main_conf_t;
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38
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39
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40 typedef struct {
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392
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41 ngx_array_t *lengths;
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42 ngx_array_t *values;
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43 } ngx_http_xslt_param_t;
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44
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45
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46 typedef struct {
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47 xsltStylesheetPtr stylesheet;
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48 ngx_array_t params; /* ngx_http_xslt_param_t */
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49 } ngx_http_xslt_sheet_t;
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50
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51
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52 typedef struct {
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53 xmlDtdPtr dtd;
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394
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54 ngx_array_t sheets; /* ngx_http_xslt_sheet_t */
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55 ngx_hash_t types;
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56 ngx_array_t *types_keys;
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57 } ngx_http_xslt_filter_loc_conf_t;
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392
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58
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59
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60 typedef struct {
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61 xmlDocPtr doc;
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62 xmlParserCtxtPtr ctxt;
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63 xmlSAXHandler *sax;
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64 ngx_http_request_t *request;
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65 ngx_array_t params;
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394
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66
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67 ngx_uint_t done; /* unsigned done:1; */
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392
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68 } ngx_http_xslt_filter_ctx_t;
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69
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70
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71 static ngx_int_t ngx_http_xslt_send(ngx_http_request_t *r,
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72 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b);
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73 static ngx_int_t ngx_http_xslt_filter_internal_error(ngx_http_request_t *r);
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74 static ngx_int_t ngx_http_xslt_add_chunk(ngx_http_request_t *r,
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75 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b);
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76
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77
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78 static void ngx_http_xslt_sax_start_document(void *data);
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79 static void ngx_http_xslt_sax_end_document(void *data);
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80 static void ngx_http_xslt_sax_internal_subset(void *data, const xmlChar *name,
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81 const xmlChar *externalId, const xmlChar *systemId);
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82 static void ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name,
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83 const xmlChar *externalId, const xmlChar *systemId);
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84 static void ngx_http_xslt_sax_entity_decl(void *data, const xmlChar *name,
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85 int type, const xmlChar *publicId, const xmlChar *systemId,
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86 xmlChar *content);
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87 static void ngx_http_xslt_sax_attribute_decl(void *data, const xmlChar *elem,
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88 const xmlChar *fullname, int type, int def, const xmlChar *defaultValue,
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89 xmlEnumerationPtr tree);
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90 static void ngx_http_xslt_sax_element_decl(void *data, const xmlChar * name,
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91 int type, xmlElementContentPtr content);
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92 static void ngx_http_xslt_sax_notation_decl(void *data, const xmlChar *name,
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93 const xmlChar *publicId, const xmlChar *systemId);
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94 static void ngx_http_xslt_sax_unparsed_entity_decl(void *data,
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95 const xmlChar *name, const xmlChar *publicId, const xmlChar *systemId,
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96 const xmlChar *notationName);
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97 static void ngx_http_xslt_sax_start_element(void *data,
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98 const xmlChar *localname, const xmlChar *prefix, const xmlChar *URI,
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99 int nb_namespaces, const xmlChar **namespaces, int nb_attributes,
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100 int nb_defaulted, const xmlChar **attributes);
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101 static void ngx_http_xslt_sax_end_element(void *data,
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102 const xmlChar * localname ATTRIBUTE_UNUSED,
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103 const xmlChar * prefix ATTRIBUTE_UNUSED,
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104 const xmlChar * URI ATTRIBUTE_UNUSED);
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105 static void ngx_http_xslt_sax_characters(void *data, const xmlChar *p, int len);
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106 static void ngx_http_xslt_sax_cdata_block(void *data, const xmlChar *p,
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107 int len);
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108 static xmlEntityPtr ngx_http_xslt_sax_get_entity(void *data,
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109 const xmlChar *name);
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110 static xmlEntityPtr ngx_http_xslt_sax_get_parameter_entity(void *data,
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111 const xmlChar *name);
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112 static xmlParserInputPtr ngx_http_xslt_sax_resolve_entity(void *data,
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113 const xmlChar *publicId, const xmlChar *systemId);
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114 static void ngx_http_xslt_sax_reference(void *data, const xmlChar *name);
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115 static void ngx_http_xslt_sax_comment(void *data, const xmlChar *value);
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116 static void ngx_http_xslt_sax_processing_instruction(void *data,
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117 const xmlChar *target, const xmlChar *pidata);
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118 static int ngx_http_xslt_sax_is_standalone(void *data);
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119 static int ngx_http_xslt_sax_has_internal_subset(void *data);
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120 static int ngx_http_xslt_sax_has_external_subset(void *data);
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121 static void ngx_cdecl ngx_http_xslt_sax_error(void *data, const char *msg, ...);
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122
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123
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124 static ngx_buf_t *ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r,
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125 ngx_http_xslt_filter_ctx_t *ctx);
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126 static ngx_int_t ngx_http_xslt_params(ngx_http_request_t *r,
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127 ngx_http_xslt_filter_ctx_t *ctx, ngx_array_t *params);
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394
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128 static u_char *ngx_http_xslt_content_type(xsltStylesheetPtr s);
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129 static u_char *ngx_http_xslt_encoding(xsltStylesheetPtr s);
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392
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130 static void ngx_http_xslt_cleanup(void *data);
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131
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132 static char *ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd,
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133 void *conf);
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134 static char *ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd,
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135 void *conf);
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394
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136 static void ngx_http_xslt_cleanup_dtd(void *data);
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392
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137 static void ngx_http_xslt_cleanup_stylesheet(void *data);
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394
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138 static void *ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf);
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392
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139 static void *ngx_http_xslt_filter_create_conf(ngx_conf_t *cf);
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140 static char *ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent,
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141 void *child);
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142 static ngx_int_t ngx_http_xslt_filter_init(ngx_conf_t *cf);
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400
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143 static void ngx_http_xslt_filter_exit(ngx_cycle_t *cycle);
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392
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144
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145
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146 ngx_str_t ngx_http_xslt_default_types[] = {
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147 ngx_string("text/xml"),
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148 ngx_null_string
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149 };
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150
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151
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152 static ngx_command_t ngx_http_xslt_filter_commands[] = {
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153
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154 { ngx_string("xml_entities"),
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394
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155 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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392
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156 ngx_http_xslt_entities,
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157 NGX_HTTP_LOC_CONF_OFFSET,
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158 0,
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159 NULL },
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160
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161 { ngx_string("xslt_stylesheet"),
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394
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162 NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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392
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163 ngx_http_xslt_stylesheet,
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164 NGX_HTTP_LOC_CONF_OFFSET,
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165 0,
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166 NULL },
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167
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168 { ngx_string("xslt_types"),
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394
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169 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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392
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170 ngx_http_types_slot,
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171 NGX_HTTP_LOC_CONF_OFFSET,
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394
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172 offsetof(ngx_http_xslt_filter_loc_conf_t, types_keys),
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392
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173 &ngx_http_xslt_default_types[0] },
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174
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175 ngx_null_command
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176 };
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177
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178
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179 static ngx_http_module_t ngx_http_xslt_filter_module_ctx = {
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180 NULL, /* preconfiguration */
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181 ngx_http_xslt_filter_init, /* postconfiguration */
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182
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394
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183 ngx_http_xslt_filter_create_main_conf, /* create main configuration */
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392
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184 NULL, /* init main configuration */
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185
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186 NULL, /* create server configuration */
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187 NULL, /* merge server configuration */
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188
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189 ngx_http_xslt_filter_create_conf, /* create location configuration */
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190 ngx_http_xslt_filter_merge_conf /* merge location configuration */
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191 };
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192
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193
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194 ngx_module_t ngx_http_xslt_filter_module = {
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195 NGX_MODULE_V1,
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196 &ngx_http_xslt_filter_module_ctx, /* module context */
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197 ngx_http_xslt_filter_commands, /* module directives */
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198 NGX_HTTP_MODULE, /* module type */
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199 NULL, /* init master */
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200 NULL, /* init module */
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201 NULL, /* init process */
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202 NULL, /* init thread */
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203 NULL, /* exit thread */
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400
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204 ngx_http_xslt_filter_exit, /* exit process */
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205 ngx_http_xslt_filter_exit, /* exit master */
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392
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206 NGX_MODULE_V1_PADDING
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207 };
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208
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209
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210 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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211 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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212
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213
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214 static ngx_int_t
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215 ngx_http_xslt_header_filter(ngx_http_request_t *r)
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216 {
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394
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217 ngx_http_xslt_filter_ctx_t *ctx;
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218 ngx_http_xslt_filter_loc_conf_t *conf;
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392
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219
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220 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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221 "xslt filter header");
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222
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223 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) {
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224 return ngx_http_next_header_filter(r);
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225 }
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226
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227 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module);
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228
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229 if (conf->sheets.nelts == 0
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394
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230 || ngx_http_test_content_type(r, &conf->types) == NULL)
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392
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231 {
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232 return ngx_http_next_header_filter(r);
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233 }
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234
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235 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module);
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236
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237 if (ctx) {
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238 return ngx_http_next_header_filter(r);
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239 }
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240
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241 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_xslt_filter_ctx_t));
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242 if (ctx == NULL) {
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243 return NGX_ERROR;
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244 }
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245
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246 ngx_http_set_ctx(r, ctx, ngx_http_xslt_filter_module);
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247
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248 r->main_filter_need_in_memory = 1;
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249
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250 return NGX_OK;
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251 }
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252
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253
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254 static ngx_int_t
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255 ngx_http_xslt_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
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256 {
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257 ngx_chain_t *cl;
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258 ngx_http_xslt_filter_ctx_t *ctx;
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259
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260 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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261 "xslt filter body");
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262
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263 if (in == NULL) {
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264 return ngx_http_next_body_filter(r, in);
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265 }
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266
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267 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module);
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268
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269 if (ctx == NULL || ctx->done) {
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270 return ngx_http_next_body_filter(r, in);
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271 }
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272
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273 for (cl = in; cl; cl = cl->next) {
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274
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275 if (ngx_http_xslt_add_chunk(r, ctx, cl->buf) != NGX_OK) {
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276
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277 if (ctx->ctxt->myDoc){
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278
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279 #if (NGX_HTTP_XSLT_REUSE_DTD)
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280 ctx->ctxt->myDoc->extSubset = NULL;
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281 #endif
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282 xmlFreeDoc(ctx->ctxt->myDoc);
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283 }
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284
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285 xmlFreeParserCtxt(ctx->ctxt);
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286
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287 return ngx_http_xslt_send(r, ctx, NULL);
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288 }
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289
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290 if (cl->buf->last_buf) {
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291
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292 ctx->doc = ctx->ctxt->myDoc;
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293
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294 #if (NGX_HTTP_XSLT_REUSE_DTD)
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295 ctx->doc->extSubset = NULL;
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296 #endif
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297
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298 xmlFreeParserCtxt(ctx->ctxt);
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299
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300 if (ctx->ctxt->wellFormed) {
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301 return ngx_http_xslt_send(r, ctx,
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302 ngx_http_xslt_apply_stylesheet(r, ctx));
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303 }
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304
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305 xmlFreeDoc(ctx->doc);
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306
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307 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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308 "not well formed XML document");
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309
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310 return ngx_http_xslt_send(r, ctx, NULL);
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311 }
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312 }
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313
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314 return NGX_OK;
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315 }
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316
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317
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318 static ngx_int_t
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319 ngx_http_xslt_send(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx,
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320 ngx_buf_t *b)
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321 {
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322 ngx_int_t rc;
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323 ngx_chain_t out;
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324 ngx_pool_cleanup_t *cln;
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325
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326 ctx->done = 1;
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327
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328 if (b == NULL) {
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329 return ngx_http_xslt_filter_internal_error(r);
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330 }
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331
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332 cln = ngx_pool_cleanup_add(r->pool, 0);
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333
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334 if (cln == NULL) {
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335 ngx_free(b->pos);
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336 return ngx_http_special_response_handler(r,
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337 NGX_HTTP_INTERNAL_SERVER_ERROR);
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338 }
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339
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394
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340 if (r == r->main) {
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341 r->headers_out.content_length_n = b->last - b->pos;
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342
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394
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343 if (r->headers_out.content_length) {
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344 r->headers_out.content_length->hash = 0;
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345 r->headers_out.content_length = NULL;
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346 }
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392
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347
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394
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348 ngx_http_clear_last_modified(r);
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392
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349 }
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350
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351 rc = ngx_http_next_header_filter(r);
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352
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353 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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354 ngx_free(b->pos);
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355 return rc;
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356 }
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357
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358 cln->handler = ngx_http_xslt_cleanup;
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359 cln->data = b->pos;
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360
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361 out.buf = b;
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362 out.next = NULL;
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363
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364 return ngx_http_next_body_filter(r, &out);
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365 }
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366
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367
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368 static ngx_int_t
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369 ngx_http_xslt_filter_internal_error(ngx_http_request_t *r)
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370 {
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|
371 ngx_int_t rc;
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372
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373 /* clear the modules contexts */
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|
374 ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module);
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375
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376 rc = ngx_http_special_response_handler(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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377
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378 /* NGX_ERROR resets any pending data */
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379
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380 return (rc == NGX_OK) ? NGX_ERROR : rc;
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381 }
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382
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383
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384 static ngx_int_t
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385 ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx,
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386 ngx_buf_t *b)
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387 {
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388 int err;
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389 xmlSAXHandler *sax;
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390 xmlParserCtxtPtr ctxt;
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391
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392 if (ctx->ctxt == NULL) {
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393
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394 ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
|
|
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395 if (ctxt == NULL) {
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396 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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397 "xmlCreatePushParserCtxt() failed");
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398 return NGX_ERROR;
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|
|
399 }
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400
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401 ctx->sax = ngx_palloc(r->pool, sizeof(xmlSAXHandler));
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402 if (ctx->sax == NULL) {
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403 return NGX_ERROR;
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|
|
404 }
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|
|
405
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406 sax = ctxt->sax;
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407
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408 ngx_memcpy(ctx->sax, sax, sizeof(xmlSAXHandler));
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409
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|
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410 sax->startDocument = ngx_http_xslt_sax_start_document;
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411 sax->endDocument = ngx_http_xslt_sax_end_document;
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412
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413 sax->internalSubset = ngx_http_xslt_sax_internal_subset;
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414 sax->externalSubset = ngx_http_xslt_sax_external_subset;
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415 sax->entityDecl = ngx_http_xslt_sax_entity_decl;
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416 sax->attributeDecl = ngx_http_xslt_sax_attribute_decl;
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417 sax->elementDecl = ngx_http_xslt_sax_element_decl;
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418 sax->notationDecl = ngx_http_xslt_sax_notation_decl;
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419 sax->unparsedEntityDecl = ngx_http_xslt_sax_unparsed_entity_decl;
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420 sax->setDocumentLocator = NULL;
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421
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422 sax->startElementNs = ngx_http_xslt_sax_start_element;
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423 sax->endElementNs = ngx_http_xslt_sax_end_element;
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424
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425 sax->characters = ngx_http_xslt_sax_characters;
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426 sax->ignorableWhitespace = ngx_http_xslt_sax_characters;
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427 sax->cdataBlock = ngx_http_xslt_sax_cdata_block;
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428 sax->getEntity = ngx_http_xslt_sax_get_entity;
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429 sax->resolveEntity = ngx_http_xslt_sax_resolve_entity;
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430 sax->getParameterEntity = ngx_http_xslt_sax_get_parameter_entity;
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431 sax->reference = ngx_http_xslt_sax_reference;
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432 sax->comment = ngx_http_xslt_sax_comment;
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433 sax->processingInstruction = ngx_http_xslt_sax_processing_instruction;
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434
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|
435 sax->isStandalone = ngx_http_xslt_sax_is_standalone;
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436 sax->hasInternalSubset = ngx_http_xslt_sax_has_internal_subset;
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|
|
437 sax->hasExternalSubset = ngx_http_xslt_sax_has_external_subset;
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438
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|
|
439 sax->warning = NULL;
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|
440 sax->error = ngx_http_xslt_sax_error;
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|
|
441 sax->fatalError = ngx_http_xslt_sax_error;
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|
|
442
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|
|
443 ctxt->userData = ctx;
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|
|
444
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|
|
445 ctxt->replaceEntities = 1;
|
|
|
446 ctxt->loadsubset = 1;
|
|
|
447
|
|
|
448 ctx->ctxt = ctxt;
|
|
|
449 ctx->request = r;
|
|
|
450 }
|
|
|
451
|
|
|
452 err = xmlParseChunk(ctx->ctxt, (char *) b->pos,
|
|
|
453 (int) (b->last - b->pos), b->last_buf);
|
|
|
454
|
|
|
455 if (err == 0) {
|
|
|
456 b->pos = b->last;
|
|
|
457 return NGX_OK;
|
|
|
458 }
|
|
|
459
|
|
|
460 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
461 "xmlParseChunk() failed, error:%d", err);
|
|
|
462
|
|
|
463 return NGX_ERROR;
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
|
467 static void
|
|
|
468 ngx_http_xslt_sax_start_document(void *data)
|
|
|
469 {
|
|
|
470 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
471
|
|
|
472 ctx->sax->startDocument(ctx->ctxt);
|
|
|
473 }
|
|
|
474
|
|
|
475
|
|
|
476 static void
|
|
|
477 ngx_http_xslt_sax_end_document(void *data)
|
|
|
478 {
|
|
|
479 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
480
|
|
|
481 ctx->sax->endDocument(ctx->ctxt);
|
|
|
482 }
|
|
|
483
|
|
|
484
|
|
|
485 static void
|
|
|
486 ngx_http_xslt_sax_internal_subset(void *data, const xmlChar *name,
|
|
|
487 const xmlChar *externalId, const xmlChar *systemId)
|
|
|
488 {
|
|
|
489 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
490
|
|
|
491 ctx->sax->internalSubset(ctx->ctxt, name, externalId, systemId);
|
|
|
492 }
|
|
|
493
|
|
|
494
|
|
|
495 static void
|
|
|
496 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name,
|
|
|
497 const xmlChar *externalId, const xmlChar *systemId)
|
|
|
498 {
|
|
|
499 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
500
|
|
394
|
501 xmlDocPtr doc;
|
|
|
502 xmlDtdPtr dtd;
|
|
|
503 ngx_http_request_t *r;
|
|
|
504 ngx_http_xslt_filter_loc_conf_t *conf;
|
|
392
|
505
|
|
|
506 r = ctx->request;
|
|
|
507
|
|
|
508 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module);
|
|
|
509
|
|
|
510 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
511 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"",
|
|
|
512 name ? name : (xmlChar *) "",
|
|
|
513 externalId ? externalId : (xmlChar *) "",
|
|
|
514 systemId ? systemId : (xmlChar *) "");
|
|
|
515
|
|
|
516 doc = ctx->ctxt->myDoc;
|
|
|
517
|
|
|
518 #if (NGX_HTTP_XSLT_REUSE_DTD)
|
|
|
519
|
|
|
520 dtd = conf->dtd;
|
|
|
521
|
|
|
522 #else
|
|
|
523
|
|
|
524 dtd = xmlCopyDtd(conf->dtd);
|
|
|
525 if (dtd == NULL) {
|
|
|
526 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
527 "xmlCopyDtd() failed");
|
|
|
528 return;
|
|
|
529 }
|
|
|
530
|
|
|
531 if (doc->children == NULL) {
|
|
|
532 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd);
|
|
|
533
|
|
|
534 } else {
|
|
|
535 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd);
|
|
|
536 }
|
|
|
537
|
|
|
538 #endif
|
|
|
539
|
|
|
540 doc->extSubset = dtd;
|
|
|
541 }
|
|
|
542
|
|
|
543
|
|
|
544 static void
|
|
|
545 ngx_http_xslt_sax_entity_decl(void *data, const xmlChar *name, int type,
|
|
|
546 const xmlChar *publicId, const xmlChar *systemId, xmlChar *content)
|
|
|
547 {
|
|
|
548 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
549
|
|
|
550 ctx->sax->entityDecl(ctx->ctxt, name, type, publicId, systemId, content);
|
|
|
551 }
|
|
|
552
|
|
|
553
|
|
|
554 static void
|
|
|
555 ngx_http_xslt_sax_attribute_decl(void *data, const xmlChar *elem,
|
|
|
556 const xmlChar *fullname, int type, int def, const xmlChar *defaultValue,
|
|
|
557 xmlEnumerationPtr tree)
|
|
|
558 {
|
|
|
559 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
560
|
|
|
561 ctx->sax->attributeDecl(ctx->ctxt, elem, fullname, type, def, defaultValue,
|
|
|
562 tree);
|
|
|
563 }
|
|
|
564
|
|
|
565
|
|
|
566 static void
|
|
|
567 ngx_http_xslt_sax_element_decl(void *data, const xmlChar * name, int type,
|
|
|
568 xmlElementContentPtr content)
|
|
|
569 {
|
|
|
570 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
571
|
|
|
572 ctx->sax->elementDecl(ctx->ctxt, name, type, content);
|
|
|
573 }
|
|
|
574
|
|
|
575
|
|
|
576 static void
|
|
|
577 ngx_http_xslt_sax_notation_decl(void *data, const xmlChar *name,
|
|
|
578 const xmlChar *publicId, const xmlChar *systemId)
|
|
|
579 {
|
|
|
580 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
581
|
|
|
582 ctx->sax->notationDecl(ctx->ctxt, name, publicId, systemId);
|
|
|
583 }
|
|
|
584
|
|
|
585
|
|
|
586 static void
|
|
|
587 ngx_http_xslt_sax_unparsed_entity_decl(void *data, const xmlChar *name,
|
|
|
588 const xmlChar *publicId, const xmlChar *systemId,
|
|
|
589 const xmlChar *notationName)
|
|
|
590 {
|
|
|
591 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
592
|
|
|
593 ctx->sax->unparsedEntityDecl(ctx->ctxt, name, publicId, systemId,
|
|
|
594 notationName);
|
|
|
595 }
|
|
|
596
|
|
|
597
|
|
|
598 static void
|
|
|
599 ngx_http_xslt_sax_start_element(void *data, const xmlChar *localname,
|
|
|
600 const xmlChar *prefix, const xmlChar *URI, int nb_namespaces,
|
|
|
601 const xmlChar **namespaces, int nb_attributes, int nb_defaulted,
|
|
|
602 const xmlChar **attributes)
|
|
|
603 {
|
|
|
604 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
605
|
|
|
606 ctx->sax->startElementNs(ctx->ctxt, localname, prefix, URI, nb_namespaces,
|
|
|
607 namespaces, nb_attributes, nb_defaulted, attributes);
|
|
|
608 }
|
|
|
609
|
|
|
610
|
|
|
611 static void
|
|
|
612 ngx_http_xslt_sax_end_element(void *data,
|
|
|
613 const xmlChar * localname ATTRIBUTE_UNUSED,
|
|
|
614 const xmlChar * prefix ATTRIBUTE_UNUSED,
|
|
|
615 const xmlChar * URI ATTRIBUTE_UNUSED)
|
|
|
616 {
|
|
|
617 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
618
|
|
|
619 ctx->sax->endElementNs(ctx->ctxt, localname, prefix, URI);
|
|
|
620 }
|
|
|
621
|
|
|
622
|
|
|
623 static void
|
|
|
624 ngx_http_xslt_sax_characters(void *data, const xmlChar *p, int len)
|
|
|
625 {
|
|
|
626 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
627
|
|
|
628 ctx->sax->characters(ctx->ctxt, p, len);
|
|
|
629 }
|
|
|
630
|
|
|
631
|
|
|
632 static void
|
|
|
633 ngx_http_xslt_sax_cdata_block(void *data, const xmlChar *p, int len)
|
|
|
634 {
|
|
|
635 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
636
|
|
|
637 ctx->sax->cdataBlock(ctx->ctxt, p, len);
|
|
|
638 }
|
|
|
639
|
|
|
640
|
|
|
641 static xmlEntityPtr
|
|
|
642 ngx_http_xslt_sax_get_entity(void *data, const xmlChar *name)
|
|
|
643 {
|
|
|
644 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
645
|
|
|
646 return ctx->sax->getEntity(ctx->ctxt, name);
|
|
|
647 }
|
|
|
648
|
|
|
649
|
|
|
650 static xmlEntityPtr
|
|
|
651 ngx_http_xslt_sax_get_parameter_entity(void *data, const xmlChar *name)
|
|
|
652 {
|
|
|
653 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
654
|
|
|
655 return ctx->sax->getParameterEntity(ctx->ctxt, name);
|
|
|
656 }
|
|
|
657
|
|
|
658
|
|
|
659 static xmlParserInputPtr
|
|
|
660 ngx_http_xslt_sax_resolve_entity(void *data, const xmlChar *publicId,
|
|
|
661 const xmlChar *systemId)
|
|
|
662 {
|
|
|
663 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
664
|
|
|
665 return ctx->sax->resolveEntity(ctx->ctxt, publicId, systemId);
|
|
|
666 }
|
|
|
667
|
|
|
668
|
|
|
669 static void
|
|
|
670 ngx_http_xslt_sax_reference(void *data, const xmlChar *name)
|
|
|
671 {
|
|
|
672 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
673
|
|
|
674 ctx->sax->reference(ctx->ctxt, name);
|
|
|
675 }
|
|
|
676
|
|
|
677
|
|
|
678 static void
|
|
|
679 ngx_http_xslt_sax_comment(void *data, const xmlChar *value)
|
|
|
680 {
|
|
|
681 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
682
|
|
|
683 ctx->sax->comment(ctx->ctxt, value);
|
|
|
684 }
|
|
|
685
|
|
|
686
|
|
|
687 static void
|
|
|
688 ngx_http_xslt_sax_processing_instruction(void *data, const xmlChar *target,
|
|
|
689 const xmlChar *pidata)
|
|
|
690 {
|
|
|
691 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
692
|
|
|
693 ctx->sax->processingInstruction(ctx->ctxt, target, pidata);
|
|
|
694 }
|
|
|
695
|
|
|
696
|
|
|
697 static int
|
|
|
698 ngx_http_xslt_sax_is_standalone(void *data)
|
|
|
699 {
|
|
|
700 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
701
|
|
|
702 return ctx->sax->isStandalone(ctx->ctxt);
|
|
|
703 }
|
|
|
704
|
|
|
705
|
|
|
706 static int
|
|
|
707 ngx_http_xslt_sax_has_internal_subset(void *data)
|
|
|
708 {
|
|
|
709 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
710
|
|
|
711 return ctx->sax->hasInternalSubset(ctx->ctxt);
|
|
|
712 }
|
|
|
713
|
|
|
714
|
|
|
715 static int
|
|
|
716 ngx_http_xslt_sax_has_external_subset(void *data)
|
|
|
717 {
|
|
|
718 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
719
|
|
|
720 return ctx->sax->hasExternalSubset(ctx->ctxt);
|
|
|
721 }
|
|
|
722
|
|
|
723
|
|
|
724 static void ngx_cdecl
|
|
|
725 ngx_http_xslt_sax_error(void *data, const char *msg, ...)
|
|
|
726 {
|
|
|
727 ngx_http_xslt_filter_ctx_t *ctx = data;
|
|
|
728
|
|
|
729 size_t n;
|
|
|
730 va_list args;
|
|
|
731 u_char buf[NGX_MAX_ERROR_STR];
|
|
|
732
|
|
|
733 buf[0] = '\0';
|
|
|
734
|
|
|
735 va_start(args, msg);
|
|
|
736 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args);
|
|
|
737 va_end(args);
|
|
|
738
|
|
|
739 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ }
|
|
|
740
|
|
|
741 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0,
|
|
|
742 "libxml2 error: \"%*s\"", n, buf);
|
|
|
743 }
|
|
|
744
|
|
|
745
|
|
|
746 static ngx_buf_t *
|
|
|
747 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r,
|
|
|
748 ngx_http_xslt_filter_ctx_t *ctx)
|
|
|
749 {
|
|
394
|
750 int len, rc, doc_type;
|
|
|
751 u_char *type, *encoding;
|
|
|
752 ngx_buf_t *b;
|
|
|
753 ngx_uint_t i;
|
|
|
754 xmlChar *buf;
|
|
|
755 xmlDocPtr doc, res;
|
|
|
756 ngx_http_xslt_sheet_t *sheet;
|
|
|
757 ngx_http_xslt_filter_loc_conf_t *conf;
|
|
392
|
758
|
|
|
759 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module);
|
|
|
760 sheet = conf->sheets.elts;
|
|
|
761 doc = ctx->doc;
|
|
|
762
|
|
|
763 /* preallocate array for 4 params */
|
|
|
764
|
|
|
765 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *))
|
|
|
766 != NGX_OK)
|
|
|
767 {
|
|
|
768 xmlFreeDoc(doc);
|
|
|
769 return NULL;
|
|
|
770 }
|
|
|
771
|
|
|
772 for (i = 0; i < conf->sheets.nelts; i++) {
|
|
|
773
|
|
|
774 if (ngx_http_xslt_params(r, ctx, &sheet[i].params) != NGX_OK) {
|
|
|
775 xmlFreeDoc(doc);
|
|
|
776 return NULL;
|
|
|
777 }
|
|
|
778
|
|
|
779 res = xsltApplyStylesheet(sheet[i].stylesheet, doc, ctx->params.elts);
|
|
|
780
|
|
|
781 xmlFreeDoc(doc);
|
|
|
782
|
|
|
783 if (res == NULL) {
|
|
|
784 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
785 "xsltApplyStylesheet() failed");
|
|
|
786 return NULL;
|
|
|
787 }
|
|
|
788
|
|
|
789 doc = res;
|
|
|
790
|
|
|
791 /* reset array elements */
|
|
|
792 ctx->params.nelts = 0;
|
|
|
793 }
|
|
|
794
|
|
394
|
795 /* there must be at least one stylesheet */
|
|
|
796
|
|
|
797 if (r == r->main) {
|
|
|
798 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet);
|
|
392
|
799
|
|
394
|
800 } else {
|
|
|
801 type = NULL;
|
|
|
802 }
|
|
|
803
|
|
|
804 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet);
|
|
|
805 doc_type = doc->type;
|
|
|
806
|
|
|
807 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
808 "xslt filter type: %d t:%s e:%s",
|
|
|
809 doc_type, type ? type : (u_char *) "(null)",
|
|
|
810 encoding ? encoding : (u_char *) "(null)");
|
|
392
|
811
|
|
|
812 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet);
|
|
|
813
|
|
|
814 xmlFreeDoc(doc);
|
|
|
815
|
|
|
816 if (rc != 0) {
|
|
|
817 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
818 "xsltSaveResultToString() failed");
|
|
|
819 return NULL;
|
|
|
820 }
|
|
|
821
|
|
|
822 if (len == 0) {
|
|
|
823 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
824 "xsltSaveResultToString() returned zero-length result");
|
|
|
825 return NULL;
|
|
|
826 }
|
|
|
827
|
|
|
828 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
|
|
|
829 if (b == NULL) {
|
|
|
830 ngx_free(buf);
|
|
|
831 return NULL;
|
|
|
832 }
|
|
|
833
|
|
|
834 b->pos = buf;
|
|
|
835 b->last = buf + len;
|
|
|
836 b->memory = 1;
|
|
|
837 b->last_buf = 1;
|
|
|
838
|
|
394
|
839 if (encoding) {
|
|
|
840 r->headers_out.charset.len = ngx_strlen(encoding);
|
|
|
841 r->headers_out.charset.data = encoding;
|
|
|
842 }
|
|
|
843
|
|
|
844 if (r != r->main) {
|
|
|
845 return b;
|
|
|
846 }
|
|
|
847
|
|
|
848 if (type) {
|
|
|
849 len = ngx_strlen(type);
|
|
|
850
|
|
|
851 r->headers_out.content_type_len = len;
|
|
|
852 r->headers_out.content_type.len = len;
|
|
|
853 r->headers_out.content_type.data = type;
|
|
|
854
|
|
|
855 } else if (doc_type == XML_HTML_DOCUMENT_NODE) {
|
|
|
856
|
|
|
857 r->headers_out.content_type_len = sizeof("text/html") - 1;
|
|
|
858 r->headers_out.content_type.len = sizeof("text/html") - 1;
|
|
|
859 r->headers_out.content_type.data = (u_char *) "text/html";
|
|
|
860 }
|
|
|
861
|
|
392
|
862 return b;
|
|
|
863 }
|
|
|
864
|
|
|
865
|
|
|
866 static ngx_int_t
|
|
|
867 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx,
|
|
|
868 ngx_array_t *params)
|
|
|
869 {
|
|
|
870 u_char *p, *last, *value, *dst, *src, **s;
|
|
|
871 size_t len;
|
|
|
872 ngx_uint_t i;
|
|
|
873 ngx_str_t string;
|
|
|
874 ngx_http_xslt_param_t *param;
|
|
|
875
|
|
|
876 param = params->elts;
|
|
|
877
|
|
|
878 for (i = 0; i < params->nelts; i++) {
|
|
|
879
|
|
|
880 if (ngx_http_script_run(r, &string, param[i].lengths->elts, 1,
|
|
|
881 param[i].values->elts)
|
|
|
882 == NULL)
|
|
|
883 {
|
|
|
884 return NGX_ERROR;
|
|
|
885 }
|
|
|
886
|
|
|
887 last = string.data + string.len - 1;
|
|
|
888 *last = '\0';
|
|
|
889
|
|
|
890 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
891 "xslt filter param: \"%s\"", string.data);
|
|
|
892
|
|
|
893 p = string.data;
|
|
|
894
|
|
|
895 while (p && *p) {
|
|
|
896
|
|
|
897 value = p;
|
|
|
898 p = (u_char *) ngx_strchr(p, '=');
|
|
|
899 if (p == NULL) {
|
|
|
900 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
901 "invalid libxslt parameter \"%s\"", value);
|
|
|
902 return NGX_ERROR;
|
|
|
903 }
|
|
|
904 *p++ = '\0';
|
|
|
905
|
|
|
906 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
907 "xslt filter param name: \"%s\"", value);
|
|
|
908
|
|
|
909 s = ngx_array_push(&ctx->params);
|
|
|
910 if (s == NULL) {
|
|
|
911 return NGX_ERROR;
|
|
|
912 }
|
|
|
913
|
|
|
914 *s = value;
|
|
|
915
|
|
|
916 value = p;
|
|
|
917 p = (u_char *) ngx_strchr(p, ':');
|
|
|
918
|
|
|
919 if (p) {
|
|
|
920 len = p - value;
|
|
|
921 *p++ = '\0';
|
|
|
922
|
|
|
923 } else {
|
|
|
924 len = last - value;
|
|
|
925 }
|
|
|
926
|
|
|
927 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
928 "xslt filter param value: \"%s\"", value);
|
|
|
929
|
|
|
930 dst = value;
|
|
|
931 src = value;
|
|
|
932
|
|
|
933 ngx_unescape_uri(&dst, &src, len, 0);
|
|
|
934
|
|
|
935 *dst = '\0';
|
|
|
936
|
|
|
937 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
938 "xslt filter param unescaped: \"%s\"", value);
|
|
|
939
|
|
|
940 s = ngx_array_push(&ctx->params);
|
|
|
941 if (s == NULL) {
|
|
|
942 return NGX_ERROR;
|
|
|
943 }
|
|
|
944
|
|
|
945 *s = value;
|
|
|
946 }
|
|
|
947 }
|
|
|
948
|
|
|
949 s = ngx_array_push(&ctx->params);
|
|
|
950 if (s == NULL) {
|
|
|
951 return NGX_ERROR;
|
|
|
952 }
|
|
|
953
|
|
|
954 *s = NULL;
|
|
|
955
|
|
|
956 return NGX_OK;
|
|
|
957 }
|
|
|
958
|
|
|
959
|
|
394
|
960 static u_char *
|
|
|
961 ngx_http_xslt_content_type(xsltStylesheetPtr s)
|
|
|
962 {
|
|
|
963 u_char *type;
|
|
|
964
|
|
|
965 if (s->mediaType) {
|
|
|
966 return s->mediaType;
|
|
|
967 }
|
|
|
968
|
|
|
969 for (s = s->imports; s; s = s->next) {
|
|
|
970
|
|
|
971 type = ngx_http_xslt_content_type(s);
|
|
|
972
|
|
|
973 if (type) {
|
|
|
974 return type;
|
|
|
975 }
|
|
|
976 }
|
|
|
977
|
|
|
978 return NULL;
|
|
|
979 }
|
|
|
980
|
|
|
981
|
|
|
982 static u_char *
|
|
|
983 ngx_http_xslt_encoding(xsltStylesheetPtr s)
|
|
|
984 {
|
|
|
985 u_char *encoding;
|
|
|
986
|
|
|
987 if (s->encoding) {
|
|
|
988 return s->encoding;
|
|
|
989 }
|
|
|
990
|
|
|
991 for (s = s->imports; s; s = s->next) {
|
|
|
992
|
|
|
993 encoding = ngx_http_xslt_encoding(s);
|
|
|
994
|
|
|
995 if (encoding) {
|
|
|
996 return encoding;
|
|
|
997 }
|
|
|
998 }
|
|
|
999
|
|
|
1000 return NULL;
|
|
|
1001 }
|
|
|
1002
|
|
|
1003
|
|
392
|
1004 static void
|
|
|
1005 ngx_http_xslt_cleanup(void *data)
|
|
|
1006 {
|
|
|
1007 ngx_free(data);
|
|
|
1008 }
|
|
|
1009
|
|
|
1010
|
|
|
1011 static char *
|
|
|
1012 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1013 {
|
|
394
|
1014 ngx_http_xslt_filter_loc_conf_t *xlcf = conf;
|
|
392
|
1015
|
|
394
|
1016 ngx_str_t *value;
|
|
|
1017 ngx_uint_t i;
|
|
|
1018 ngx_pool_cleanup_t *cln;
|
|
|
1019 ngx_http_xslt_file_t *file;
|
|
|
1020 ngx_http_xslt_filter_main_conf_t *xmcf;
|
|
392
|
1021
|
|
|
1022 if (xlcf->dtd) {
|
|
|
1023 return "is duplicate";
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 value = cf->args->elts;
|
|
|
1027
|
|
394
|
1028 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module);
|
|
|
1029
|
|
|
1030 file = xmcf->dtd_files.elts;
|
|
|
1031 for (i = 0; i < xmcf->dtd_files.nelts; i++) {
|
|
|
1032 if (ngx_strcmp(file[i].name, &value[1].data) == 0) {
|
|
|
1033 xlcf->dtd = file[i].data;
|
|
|
1034 return NGX_CONF_OK;
|
|
|
1035 }
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
|
1039 if (cln == NULL) {
|
|
|
1040 return NGX_CONF_ERROR;
|
|
|
1041 }
|
|
|
1042
|
|
392
|
1043 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data);
|
|
|
1044
|
|
|
1045 if (xlcf->dtd == NULL) {
|
|
|
1046 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed");
|
|
|
1047 return NGX_CONF_ERROR;
|
|
|
1048 }
|
|
|
1049
|
|
394
|
1050 cln->handler = ngx_http_xslt_cleanup_dtd;
|
|
|
1051 cln->data = xlcf->dtd;
|
|
|
1052
|
|
|
1053 file = ngx_array_push(&xmcf->dtd_files);
|
|
|
1054 if (file == NULL) {
|
|
|
1055 return NGX_CONF_ERROR;
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 file->name = value[1].data;
|
|
|
1059 file->data = xlcf->dtd;
|
|
|
1060
|
|
392
|
1061 return NGX_CONF_OK;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064
|
|
|
1065
|
|
|
1066 static char *
|
|
|
1067 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1068 {
|
|
394
|
1069 ngx_http_xslt_filter_loc_conf_t *xlcf = conf;
|
|
392
|
1070
|
|
394
|
1071 ngx_str_t *value;
|
|
|
1072 ngx_uint_t i, n;
|
|
|
1073 ngx_pool_cleanup_t *cln;
|
|
|
1074 ngx_http_xslt_file_t *file;
|
|
|
1075 ngx_http_xslt_sheet_t *sheet;
|
|
|
1076 ngx_http_xslt_param_t *param;
|
|
|
1077 ngx_http_script_compile_t sc;
|
|
|
1078 ngx_http_xslt_filter_main_conf_t *xmcf;
|
|
392
|
1079
|
|
|
1080 value = cf->args->elts;
|
|
|
1081
|
|
|
1082 if (xlcf->sheets.elts == NULL) {
|
|
|
1083 if (ngx_array_init(&xlcf->sheets, cf->pool, 1,
|
|
|
1084 sizeof(ngx_http_xslt_sheet_t))
|
|
|
1085 != NGX_OK)
|
|
|
1086 {
|
|
|
1087 return NGX_CONF_ERROR;
|
|
|
1088 }
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 sheet = ngx_array_push(&xlcf->sheets);
|
|
|
1092 if (sheet == NULL) {
|
|
|
1093 return NGX_CONF_ERROR;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t));
|
|
|
1097
|
|
|
1098 if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) {
|
|
|
1099 return NGX_CONF_ERROR;
|
|
|
1100 }
|
|
|
1101
|
|
394
|
1102 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module);
|
|
|
1103
|
|
|
1104 file = xmcf->sheet_files.elts;
|
|
|
1105 for (i = 0; i < xmcf->sheet_files.nelts; i++) {
|
|
|
1106 if (ngx_strcmp(file[i].name, &value[1].data) == 0) {
|
|
|
1107 sheet->stylesheet = file[i].data;
|
|
|
1108 goto found;
|
|
|
1109 }
|
|
|
1110 }
|
|
|
1111
|
|
392
|
1112 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
|
1113 if (cln == NULL) {
|
|
|
1114 return NGX_CONF_ERROR;
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 sheet->stylesheet = xsltParseStylesheetFile(value[1].data);
|
|
|
1118 if (sheet->stylesheet == NULL) {
|
|
|
1119 ngx_conf_log_error(NGX_LOG_ERR, cf, 0,
|
|
|
1120 "xsltParseStylesheetFile(\"%s\") failed",
|
|
|
1121 value[1].data);
|
|
|
1122 return NGX_CONF_ERROR;
|
|
|
1123 }
|
|
|
1124
|
|
|
1125 cln->handler = ngx_http_xslt_cleanup_stylesheet;
|
|
|
1126 cln->data = sheet->stylesheet;
|
|
|
1127
|
|
394
|
1128 file = ngx_array_push(&xmcf->sheet_files);
|
|
|
1129 if (file == NULL) {
|
|
|
1130 return NGX_CONF_ERROR;
|
|
|
1131 }
|
|
|
1132
|
|
|
1133 file->name = value[1].data;
|
|
|
1134 file->data = sheet->stylesheet;
|
|
|
1135
|
|
|
1136 found:
|
|
|
1137
|
|
392
|
1138 n = cf->args->nelts;
|
|
|
1139
|
|
|
1140 if (n == 2) {
|
|
|
1141 return NGX_CONF_OK;
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 if (ngx_array_init(&sheet->params, cf->pool, n - 2,
|
|
|
1145 sizeof(ngx_http_xslt_param_t))
|
|
|
1146 != NGX_OK)
|
|
|
1147 {
|
|
|
1148 return NGX_CONF_ERROR;
|
|
|
1149 }
|
|
|
1150
|
|
|
1151 for (i = 2; i < n; i++) {
|
|
|
1152
|
|
|
1153 param = ngx_array_push(&sheet->params);
|
|
|
1154 if (param == NULL) {
|
|
|
1155 return NGX_CONF_ERROR;
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 param->lengths = NULL;
|
|
|
1159 param->values = NULL;
|
|
|
1160
|
|
|
1161 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1162
|
|
|
1163 sc.cf = cf;
|
|
|
1164 sc.source = &value[i];
|
|
|
1165 sc.lengths = ¶m->lengths;
|
|
|
1166 sc.values = ¶m->values;
|
|
|
1167 sc.variables = ngx_http_script_variables_count(&value[i]);
|
|
|
1168 sc.complete_lengths = 1;
|
|
|
1169 sc.complete_values = 1;
|
|
|
1170
|
|
|
1171 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1172 return NGX_CONF_ERROR;
|
|
|
1173 }
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 return NGX_CONF_OK;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179
|
|
|
1180 static void
|
|
394
|
1181 ngx_http_xslt_cleanup_dtd(void *data)
|
|
|
1182 {
|
|
|
1183 xmlFreeDtd(data);
|
|
|
1184 }
|
|
|
1185
|
|
|
1186
|
|
|
1187 static void
|
|
392
|
1188 ngx_http_xslt_cleanup_stylesheet(void *data)
|
|
|
1189 {
|
|
394
|
1190 xsltFreeStylesheet(data);
|
|
392
|
1191 }
|
|
|
1192
|
|
|
1193
|
|
394
|
1194 static void *
|
|
|
1195 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf)
|
|
|
1196 {
|
|
|
1197 ngx_http_xslt_filter_main_conf_t *conf;
|
|
|
1198
|
|
|
1199 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t));
|
|
|
1200 if (conf == NULL) {
|
|
|
1201 return NGX_CONF_ERROR;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 if (ngx_array_init(&conf->dtd_files, cf->pool, 1,
|
|
|
1205 sizeof(ngx_http_xslt_file_t))
|
|
|
1206 != NGX_OK)
|
|
|
1207 {
|
|
|
1208 return NULL;
|
|
|
1209 }
|
|
|
1210
|
|
|
1211 if (ngx_array_init(&conf->sheet_files, cf->pool, 1,
|
|
|
1212 sizeof(ngx_http_xslt_file_t))
|
|
|
1213 != NGX_OK)
|
|
|
1214 {
|
|
|
1215 return NULL;
|
|
|
1216 }
|
|
|
1217
|
|
|
1218 return conf;
|
|
|
1219 }
|
|
|
1220
|
|
392
|
1221
|
|
|
1222 static void *
|
|
|
1223 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf)
|
|
|
1224 {
|
|
394
|
1225 ngx_http_xslt_filter_loc_conf_t *conf;
|
|
392
|
1226
|
|
394
|
1227 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t));
|
|
392
|
1228 if (conf == NULL) {
|
|
|
1229 return NGX_CONF_ERROR;
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 /*
|
|
|
1233 * set by ngx_pcalloc():
|
|
|
1234 *
|
|
394
|
1235 * conf->dtd = NULL;
|
|
|
1236 * conf->sheets = { NULL };
|
|
|
1237 * conf->types = { NULL };
|
|
|
1238 * conf->types_keys = NULL;
|
|
392
|
1239 */
|
|
|
1240
|
|
|
1241 return conf;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244
|
|
|
1245 static char *
|
|
|
1246 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1247 {
|
|
394
|
1248 ngx_http_xslt_filter_loc_conf_t *prev = parent;
|
|
|
1249 ngx_http_xslt_filter_loc_conf_t *conf = child;
|
|
392
|
1250
|
|
|
1251 if (conf->dtd == NULL) {
|
|
|
1252 conf->dtd = prev->dtd;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 if (conf->sheets.nelts == 0) {
|
|
|
1256 conf->sheets = prev->sheets;
|
|
|
1257 }
|
|
|
1258
|
|
394
|
1259 if (ngx_http_merge_types(cf, conf->types_keys, &conf->types,
|
|
|
1260 prev->types_keys, &prev->types,
|
|
|
1261 ngx_http_xslt_default_types)
|
|
392
|
1262 != NGX_OK)
|
|
|
1263 {
|
|
|
1264 return NGX_CONF_ERROR;
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 return NGX_CONF_OK;
|
|
|
1268 }
|
|
|
1269
|
|
|
1270
|
|
|
1271 static ngx_int_t
|
|
|
1272 ngx_http_xslt_filter_init(ngx_conf_t *cf)
|
|
|
1273 {
|
|
|
1274 xmlInitParser();
|
|
|
1275
|
|
418
|
1276 #if (NGX_HAVE_EXSLT)
|
|
|
1277 exsltRegisterAll();
|
|
|
1278 #endif
|
|
|
1279
|
|
392
|
1280 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
1281 ngx_http_top_header_filter = ngx_http_xslt_header_filter;
|
|
|
1282
|
|
|
1283 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
1284 ngx_http_top_body_filter = ngx_http_xslt_body_filter;
|
|
|
1285
|
|
|
1286 return NGX_OK;
|
|
|
1287 }
|
|
|
1288
|
|
|
1289
|
|
|
1290 static void
|
|
|
1291 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle)
|
|
|
1292 {
|
|
|
1293 xsltCleanupGlobals();
|
|
|
1294 xmlCleanupParser();
|
|
|
1295 }
|
