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1 /* |
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 * |
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4 * Copyright 2018 Olaf Wintermann. All rights reserved. |
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5 * |
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6 * Redistribution and use in source and binary forms, with or without |
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7 * modification, are permitted provided that the following conditions are met: |
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8 * |
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9 * 1. Redistributions of source code must retain the above copyright |
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10 * notice, this list of conditions and the following disclaimer. |
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11 * |
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12 * 2. Redistributions in binary form must reproduce the above copyright |
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13 * notice, this list of conditions and the following disclaimer in the |
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14 * documentation and/or other materials provided with the distribution. |
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15 * |
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 * POSSIBILITY OF SUCH DAMAGE. |
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27 */ |
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28 #ifndef DAVQLEXEC_H |
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29 #define DAVQLEXEC_H |
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30 |
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31 #include <stdarg.h> |
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32 #include "davqlparser.h" |
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33 #include "webdav.h" |
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34 |
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35 #include <cx/buffer.h> |
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36 |
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37 #ifdef __cplusplus |
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38 extern "C" { |
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39 #endif |
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40 |
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41 typedef struct DavQLCmd DavQLCmd; |
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42 typedef struct DavQLStackObj DavQLStackObj; |
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43 typedef struct DavQLRes DavQLRes; |
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44 |
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45 typedef struct DavQLArg DavQLArg; |
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46 typedef struct DavQLArgList DavQLArgList; |
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47 |
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48 typedef void*(*davql_func)(); // TODO: interface? |
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49 |
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50 struct DavQLArg { |
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51 int type; |
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52 union DavQLArgValue{ |
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53 int d; |
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54 unsigned int u; |
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55 char *s; |
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56 time_t t; |
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57 } value; |
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58 DavQLArg *next; |
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59 }; |
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60 |
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61 struct DavQLArgList { |
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62 DavQLArg *first; |
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63 DavQLArg *current; |
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64 }; |
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65 |
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66 typedef enum { |
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67 DAVQL_OK = 0, |
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68 DAVQL_UNSUPPORTED_FORMATCHAR, |
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69 DAVQL_UNKNOWN_FORMATCHAR, |
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70 DAVQL_OOM |
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71 } davqlerror_t; |
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72 |
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73 typedef enum { |
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74 DAVQL_CMD_INT = 0, |
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75 DAVQL_CMD_STRING, |
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76 DAVQL_CMD_TIMESTAMP, |
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77 DAVQL_CMD_RES_IDENTIFIER, |
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78 DAVQL_CMD_PROP_IDENTIFIER, |
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79 //DAVQL_CMD_OP_UNARY_ADD, |
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80 DAVQL_CMD_OP_UNARY_SUB, |
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81 DAVQL_CMD_OP_UNARY_NEG, |
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82 DAVQL_CMD_OP_BINARY_ADD, |
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83 DAVQL_CMD_OP_BINARY_SUB, |
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84 DAVQL_CMD_OP_BINARY_MUL, |
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85 DAVQL_CMD_OP_BINARY_DIV, |
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86 DAVQL_CMD_OP_BINARY_AND, |
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87 DAVQL_CMD_OP_BINARY_OR, |
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88 DAVQL_CMD_OP_BINARY_XOR, |
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89 DAVQL_CMD_OP_LOGICAL_NOT, |
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90 DAVQL_CMD_OP_LOGICAL_AND, |
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91 DAVQL_CMD_OP_LOGICAL_OR_L, |
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92 DAVQL_CMD_OP_LOGICAL_OR, |
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93 DAVQL_CMD_OP_LOGICAL_XOR, |
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94 DAVQL_CMD_OP_EQ, |
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95 DAVQL_CMD_OP_NEQ, |
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96 DAVQL_CMD_OP_LT, |
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97 DAVQL_CMD_OP_GT, |
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98 DAVQL_CMD_OP_LE, |
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99 DAVQL_CMD_OP_GE, |
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100 DAVQL_CMD_OP_LIKE, |
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101 DAVQL_CMD_OP_UNLIKE, |
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102 DAVQL_CMD_CALL |
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103 } davqlcmdtype_t; |
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104 |
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105 typedef enum { |
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106 DAVQL_RES_NAME = 0, |
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107 DAVQL_RES_PATH, |
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108 DAVQL_RES_HREF, |
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109 DAVQL_RES_CONTENTLENGTH, |
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110 DAVQL_RES_CONTENTTYPE, |
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111 DAVQL_RES_CREATIONDATE, |
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112 DAVQL_RES_LASTMODIFIED, |
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113 DAVQL_RES_ISCOLLECTION |
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114 } davqlresprop_t; |
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115 |
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116 struct DavQLCmd { |
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117 davqlcmdtype_t type; |
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118 union DavQLCmdData { |
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119 int64_t integer; |
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120 cxmutstr string; |
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121 time_t timestamp; |
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122 davqlresprop_t resprop; |
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123 DavPropName property; |
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124 davql_func func; |
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125 } data; |
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126 }; |
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127 |
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128 struct DavQLStackObj { |
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129 int32_t type; // 0: int, 1: string, 2: xml |
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130 uint32_t length; |
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131 union DavQLStackData { |
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132 int64_t integer; |
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133 char *string; |
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134 DavXmlNode *node; |
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135 } data; |
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136 }; |
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137 |
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138 struct DavQLRes { |
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139 DavResource *resource; |
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140 int depth; |
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141 }; |
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142 |
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143 typedef struct DavCompiledField { |
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144 char *ns; |
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145 char *name; |
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146 CxBuffer *code; |
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147 } DavCompiledField; |
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148 |
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149 typedef struct DavOrderCriterion { |
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150 int type; // 0: resprop, 1: property |
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151 union DavQLColumn { |
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152 davqlresprop_t resprop; |
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153 CxHashKey property; |
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154 } column; |
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155 _Bool descending; |
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156 } DavOrderCriterion; |
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157 |
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158 DavQLArgList* dav_ql_get_args(DavQLStatement *st, va_list ap); |
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159 void dav_ql_free_arglist(DavQLArgList *args); |
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160 |
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161 int dav_ql_getarg_int(DavQLArgList *args); |
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162 unsigned int dav_ql_getarg_uint(DavQLArgList *args); |
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163 char* dav_ql_getarg_str(DavQLArgList *args); |
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164 time_t dav_ql_getarg_time(DavQLArgList *args); |
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165 |
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166 DavResult dav_statement_exec(DavSession *sn, DavQLStatement *st, ...); |
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167 DavResult dav_statement_execv(DavSession *sn, DavQLStatement *st, va_list ap); |
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168 |
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169 CxBuffer* dav_path_string(cxmutstr src, DavQLArgList *args, davqlerror_t *error); |
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170 cxmutstr dav_format_string(const CxAllocator *a, cxstring fstr, DavQLArgList *ap, davqlerror_t *error); |
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171 |
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172 DavResult dav_exec_select(DavSession *sn, DavQLStatement *st, va_list ap); |
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173 |
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174 int dav_identifier2resprop(cxstring src, davqlresprop_t *prop); |
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175 |
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176 CxBuffer* dav_compile_expr(DavContext *ctx, const CxAllocator *a, DavQLExpression *lexpr, DavQLArgList *ap); |
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177 |
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178 int dav_exec_expr(CxBuffer *bcode, DavResource *res, DavQLStackObj *result); |
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179 |
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180 |
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181 |
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182 #ifdef __cplusplus |
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183 } |
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184 #endif |
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185 |
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186 #endif /* DAVQLEXEC_H */ |
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187 |