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