[644] | 1 | /* |
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| 2 | * Author : David Saggiorato |
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[652] | 3 | * Gérald Fenoy |
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| 4 | * Copyright 2015 GeoLabs SARL. All rights reserved. |
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[644] | 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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| 7 | * of this software and associated documentation files (the "Software"), to deal |
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| 8 | * in the Software without restriction, including without limitation the rights |
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| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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| 10 | * copies of the Software, and to permit persons to whom the Software is |
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| 11 | * furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice shall be included in |
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| 14 | * all copies or substantial portions of the Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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| 22 | * THE SOFTWARE. |
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| 23 | */ |
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| 24 | |
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[652] | 25 | #ifdef RELY_ON_DB |
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| 26 | #include "ogr_api.h" |
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| 27 | #include "ogrsf_frmts.h" |
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| 28 | #include "ogr_p.h" |
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| 29 | |
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[644] | 30 | #include "sqlapi.h" |
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| 31 | #include <fcgi_stdio.h> |
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| 32 | #include <stdlib.h> |
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| 33 | |
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| 34 | /** |
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[652] | 35 | * Global GDALDataset pointer |
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[644] | 36 | */ |
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[652] | 37 | OGRDataSource *zoo_DS = NULL; |
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| 38 | |
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| 39 | /** |
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| 40 | * Global OGRLayer pointer pointing to the lastest result set |
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| 41 | */ |
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| 42 | OGRLayer *zoo_ResultSet = NULL; |
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| 43 | |
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| 44 | /** |
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| 45 | * Create a GDAL / OGR string for connecting to the db backend |
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| 46 | * (do not support active_schema) |
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| 47 | * |
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| 48 | * @param conf the maps containing the setting of the main.cfg file |
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| 49 | */ |
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| 50 | char* createInitString(maps* conf){ |
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| 51 | char* res=NULL; |
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| 52 | char keywords[5][9]={ |
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| 53 | "dbname", |
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| 54 | "host", |
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| 55 | "port", |
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| 56 | "user", |
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| 57 | "password" |
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| 58 | }; |
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| 59 | int i=0; |
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| 60 | maps* cconf=getMaps(conf,"database"); |
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| 61 | int len=0; |
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| 62 | for(i=0;i<5;i++){ |
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| 63 | map* tmp=getMap(cconf->content,keywords[i]); |
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| 64 | if(tmp!=NULL){ |
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| 65 | if(res==NULL){ |
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| 66 | res=(char*)malloc((strlen(keywords[i])+strlen(tmp->value)+4)*sizeof(char)); |
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| 67 | sprintf(res,"%s='%s'",keywords[i],tmp->value); |
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| 68 | len+=strlen(res); |
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| 69 | }else{ |
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| 70 | char* res1=(char*)malloc((strlen(keywords[i])+strlen(tmp->value)+5)*sizeof(char)); |
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| 71 | sprintf(res1," %s='%s'",keywords[i],tmp->value); |
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| 72 | res=(char*)realloc(res,(len+strlen(keywords[i])+strlen(tmp->value)+5)*sizeof(char)); |
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| 73 | memcpy(res+len,res1,(strlen(keywords[i])+strlen(tmp->value)+5)*sizeof(char)); |
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| 74 | len+=strlen(res1); |
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| 75 | res[len]=0; |
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| 76 | free(res1); |
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| 77 | } |
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| 78 | } |
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| 79 | } |
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| 80 | map* tmp=getMap(cconf->content,"type"); |
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| 81 | if(tmp!=NULL){ |
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| 82 | char* fres=(char*)malloc((strlen(res)+strlen(tmp->value)+2)*sizeof(char)); |
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| 83 | sprintf(fres,"%s:%s",tmp->value,res); |
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| 84 | free(res); |
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| 85 | return fres; |
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| 86 | } |
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[644] | 87 | return res; |
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| 88 | } |
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[652] | 89 | |
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| 90 | /** |
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| 91 | * Connect to the db backend. |
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| 92 | * |
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| 93 | * @param conf the maps containing the setting of the main.cfg file |
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| 94 | * @see createInitString |
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| 95 | */ |
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| 96 | void init_sql(maps* conf){ |
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| 97 | char* sqlInitString=createInitString(conf); |
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| 98 | OGRSFDriver *poDriver = NULL; |
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| 99 | OGRRegisterAll(); |
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| 100 | zoo_DS = OGRSFDriverRegistrar::Open(sqlInitString,false,&poDriver); |
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| 101 | if( zoo_DS == NULL ){ |
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| 102 | #ifdef DEBUG |
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| 103 | fprintf(stderr,"sqlInitString: %s FAILED !\n",sqlInitString); |
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| 104 | fflush(stderr); |
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| 105 | #endif |
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| 106 | free(sqlInitString); |
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| 107 | setMapInMaps(conf,"lenv","message","Failed to connect to the database backend"); |
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| 108 | return; |
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| 109 | } |
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| 110 | #ifdef DEBUG |
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| 111 | fprintf(stderr,"sqlInitString: %s SUCEED !\n",sqlInitString); |
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| 112 | fflush(stderr); |
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| 113 | #endif |
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| 114 | free(sqlInitString); |
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| 115 | } |
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| 116 | |
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| 117 | /** |
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| 118 | * Close any connection to the db backend. |
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| 119 | * |
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| 120 | * @param conf the maps containing the setting of the main.cfg file |
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| 121 | */ |
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| 122 | void close_sql(maps* conf){ |
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| 123 | if( zoo_ResultSet != NULL ) |
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| 124 | zoo_DS->ReleaseResultSet( zoo_ResultSet ); |
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| 125 | if(zoo_DS!=NULL){ |
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| 126 | OGRDataSource::DestroyDataSource( zoo_DS ); |
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| 127 | zoo_DS=NULL; |
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| 128 | } |
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| 129 | } |
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| 130 | |
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| 131 | /** |
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| 132 | * Call OGRCleanupAll. |
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| 133 | * |
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| 134 | */ |
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| 135 | void end_sql(){ |
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| 136 | OGRCleanupAll(); |
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| 137 | } |
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| 138 | |
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| 139 | /** |
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| 140 | * Execute a SQL query to the SQL Database Backend. |
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| 141 | * |
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| 142 | * @param conf the maps containing the setting of the main.cfg file |
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| 143 | * @param sqlQuery the SQL query to run |
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| 144 | * @return -1 in case of failure and 1 if the query succeed. |
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| 145 | */ |
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| 146 | int execSql(maps* conf,const char* sqlQuery){ |
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| 147 | zoo_ResultSet = zoo_DS->ExecuteSQL( sqlQuery, NULL, NULL); |
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| 148 | if( zoo_ResultSet != NULL ){ |
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| 149 | return 1; |
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| 150 | } |
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| 151 | return -1; |
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| 152 | } |
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| 153 | |
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| 154 | /** |
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| 155 | * Clean any memory allocated by executing a request |
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| 156 | * |
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| 157 | * @param conf the maps containing the setting of the main.cfg file |
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| 158 | * @param sqlQuery the SQL query to run |
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| 159 | * @return -1 in case of failure and 1 if the query succeed. |
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| 160 | */ |
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| 161 | void cleanUpResultSet(const maps* conf){ |
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| 162 | if( zoo_ResultSet != NULL ){ |
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| 163 | zoo_DS->ReleaseResultSet( zoo_ResultSet ); |
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| 164 | zoo_ResultSet=NULL; |
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| 165 | } |
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| 166 | } |
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| 167 | |
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| 168 | /** |
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| 169 | * Record a file stored during ZOO-Kernel execution |
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| 170 | * |
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| 171 | * @param conf the maps containing the setting of the main.cfg file |
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| 172 | * @param filename the file's name |
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| 173 | * @param type the type (Intput,Output,Response) |
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| 174 | * @param name the maps containing the setting of the main.cfg file |
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| 175 | */ |
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| 176 | void recordStoredFile(maps* conf,const char* filename,const char* type,const char* name){ |
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| 177 | map *uusid=getMapFromMaps(conf,"lenv","usid"); |
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| 178 | map *schema=getMapFromMaps(conf,"database","schema"); |
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| 179 | char *sqlQuery=(char*)malloc((strlen(schema->value)+strlen(uusid->value)+strlen(filename)+strlen(type)+(name!=NULL?strlen(name):2)+68+1)*sizeof(char)); |
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| 180 | if(name!=NULL) |
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| 181 | sprintf(sqlQuery,"INSERT INTO %s.files (uuid,filename,nature,name) VALUES ('%s','%s','%s','%s');",schema->value,uusid->value,filename,type,name); |
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| 182 | else |
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| 183 | sprintf(sqlQuery,"INSERT INTO %s.files (uuid,filename,nature,name) VALUES ('%s','%s','%s',NULL);",schema->value,uusid->value,filename,type); |
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| 184 | execSql(conf,sqlQuery); |
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| 185 | cleanUpResultSet(conf); |
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| 186 | } |
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| 187 | |
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| 188 | /** |
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| 189 | * Insert the reference tuple corresponding to the running service |
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| 190 | * |
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| 191 | * @param conf the maps containing the setting of the main.cfg file |
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| 192 | */ |
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| 193 | void recordServiceStatus(maps* conf){ |
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| 194 | map *sid=getMapFromMaps(conf,"lenv","sid"); |
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| 195 | map *osid=getMapFromMaps(conf,"lenv","osid"); |
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| 196 | map *uusid=getMapFromMaps(conf,"lenv","usid"); |
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| 197 | map *schema=getMapFromMaps(conf,"database","schema"); |
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| 198 | char *sqlQuery=(char*)malloc((strlen(schema->value)+ |
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| 199 | strlen(uusid->value)+ |
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| 200 | strlen(osid->value)+ |
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| 201 | strlen(sid->value)+56+1)*sizeof(char)); |
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| 202 | sprintf(sqlQuery, |
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| 203 | "INSERT INTO %s.services (uuid,sid,osid)" |
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| 204 | "VALUES ('%s','%s','%s');", |
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| 205 | schema->value, |
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| 206 | uusid->value,sid->value,osid->value); |
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| 207 | execSql(conf,sqlQuery); |
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| 208 | cleanUpResultSet(conf); |
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| 209 | } |
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| 210 | |
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| 211 | /** |
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| 212 | * Store the content of the result file |
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| 213 | * |
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| 214 | * @param conf the maps containing the setting of the main.cfg file |
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| 215 | * @param filename the file's name |
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| 216 | */ |
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| 217 | void recordResponse(maps* conf,char* filename){ |
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| 218 | FILE *file = fopen (filename, "rb"); |
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| 219 | fseek (file, 0, SEEK_END); |
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| 220 | long flen = ftell (file); |
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| 221 | fseek (file, 0, SEEK_SET); |
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| 222 | char *tmps = (char *) malloc ((flen + 1) * sizeof (char)); |
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| 223 | fread (tmps, flen, 1, file); |
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| 224 | tmps[flen]=0; |
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| 225 | fclose(file); |
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| 226 | map *sid=getMapFromMaps(conf,"lenv","usid"); |
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| 227 | map *schema=getMapFromMaps(conf,"database","schema"); |
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| 228 | char *sqlQuery=(char*)malloc((strlen(schema->value)+flen+strlen(sid->value)+51+1)*sizeof(char)); |
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| 229 | sprintf(sqlQuery,"UPDATE %s.services set response=$$%s$$ where uuid=$$%s$$;",schema->value,tmps,sid->value); |
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| 230 | execSql(conf,sqlQuery); |
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| 231 | cleanUpResultSet(conf); |
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| 232 | } |
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| 233 | |
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| 234 | /** |
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| 235 | * Update the current status of the running service. |
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| 236 | * |
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| 237 | * @param conf the map containing the setting of the main.cfg file |
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| 238 | * @return 0 on success, -2 if shmget failed, -1 if shmat failed |
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| 239 | */ |
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| 240 | int _updateStatus(maps* conf){ |
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| 241 | map *sid=getMapFromMaps(conf,"lenv","usid"); |
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| 242 | map *p=getMapFromMaps(conf,"lenv","status"); |
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| 243 | map *msg=getMapFromMaps(conf,"lenv","message"); |
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| 244 | map *schema=getMapFromMaps(conf,"database","schema"); |
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| 245 | char *sqlQuery=(char*)malloc((strlen(schema->value)+strlen(msg->value)+strlen(p->value)+strlen(sid->value)+64+1)*sizeof(char)); |
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| 246 | sprintf(sqlQuery,"UPDATE %s.services set status=$$%s$$,message=$$%s$$ where uuid=$$%s$$;",schema->value,p->value,msg->value,sid->value); |
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| 247 | fflush(stderr); |
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| 248 | if( zoo_DS == NULL ) |
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| 249 | init_sql(conf); |
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| 250 | execSql(conf,sqlQuery); |
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| 251 | cleanUpResultSet(conf); |
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| 252 | return 0; |
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| 253 | } |
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| 254 | |
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| 255 | /** |
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| 256 | * Get the ongoing status of a running service |
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| 257 | * |
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| 258 | * @param conf the maps containing the setting of the main.cfg file |
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| 259 | * @param pid the service identifier (usid key from the [lenv] section) |
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| 260 | * @return the reported status char* (MESSAGE|POURCENTAGE) |
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| 261 | */ |
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| 262 | char* _getStatus(maps* conf,char* pid){ |
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| 263 | map *schema=getMapFromMaps(conf,"database","schema"); |
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| 264 | char *sqlQuery=(char*)malloc((strlen(schema->value)+strlen(pid)+58+1)*sizeof(char)); |
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| 265 | sprintf(sqlQuery,"select status||'|'||message from %s.services where uuid=$$%s$$;",schema->value,pid); |
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| 266 | if( zoo_DS == NULL ) |
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| 267 | init_sql(conf); |
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| 268 | execSql(conf,sqlQuery); |
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| 269 | OGRFeature *poFeature = NULL; |
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| 270 | const char *tmp1; |
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| 271 | while( (poFeature = zoo_ResultSet->GetNextFeature()) != NULL ){ |
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| 272 | for( int iField = 0; iField < poFeature->GetFieldCount(); iField++ ){ |
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| 273 | if( poFeature->IsFieldSet( iField ) ){ |
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| 274 | tmp1=strdup(poFeature->GetFieldAsString( iField )); |
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| 275 | } |
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| 276 | else |
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| 277 | tmp1=NULL; |
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| 278 | } |
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| 279 | OGRFeature::DestroyFeature( poFeature ); |
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| 280 | } |
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| 281 | cleanUpResultSet(conf); |
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| 282 | return (char*)tmp1; |
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| 283 | } |
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| 284 | |
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| 285 | /** |
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| 286 | * Read the cache file of a running service |
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| 287 | * |
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| 288 | * @param conf the maps containing the setting of the main.cfg file |
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| 289 | * @param pid the service identifier (usid key from the [lenv] section) |
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| 290 | * @return the reported status char* (temporary/final result) |
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| 291 | */ |
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| 292 | char* _getStatusFile(maps* conf,char* pid){ |
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| 293 | map *schema=getMapFromMaps(conf,"database","schema"); |
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| 294 | char *sqlQuery=(char*)malloc((strlen(schema->value)+strlen(pid)+58+1)*sizeof(char)); |
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| 295 | sprintf(sqlQuery,"select response from %s.services where uuid=$$%s$$;",schema->value,pid); |
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| 296 | if( zoo_DS == NULL ) |
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| 297 | init_sql(conf); |
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| 298 | execSql(conf,sqlQuery); |
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| 299 | OGRFeature *poFeature = NULL; |
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| 300 | const char *tmp1; |
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| 301 | int hasRes=-1; |
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| 302 | while( (poFeature = zoo_ResultSet->GetNextFeature()) != NULL ){ |
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| 303 | for( int iField = 0; iField < poFeature->GetFieldCount(); iField++ ){ |
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| 304 | if( poFeature->IsFieldSet( iField ) ){ |
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| 305 | tmp1=strdup(poFeature->GetFieldAsString( iField )); |
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| 306 | hasRes=1; |
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| 307 | } |
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| 308 | else |
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| 309 | tmp1=NULL; |
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| 310 | } |
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| 311 | OGRFeature::DestroyFeature( poFeature ); |
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| 312 | } |
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| 313 | if(hasRes<0) |
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| 314 | tmp1=NULL; |
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| 315 | cleanUpResultSet(conf); |
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| 316 | return (char*)tmp1; |
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| 317 | } |
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| 318 | |
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| 319 | /** |
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| 320 | * Stop handling status repport. |
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| 321 | * |
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| 322 | * @param conf the map containing the setting of the main.cfg file |
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| 323 | */ |
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| 324 | void unhandleStatus(maps* conf){ |
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| 325 | map *sid=getMapFromMaps(conf,"lenv","usid"); |
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| 326 | char *sqlQuery=(char*)malloc((strlen(sid->value)+52+1)*sizeof(char)); |
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| 327 | sprintf(sqlQuery,"UPDATE services set end_time=now() where uuid=$$%s$$;",sid->value); |
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| 328 | execSql(conf,sqlQuery); |
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| 329 | cleanUpResultSet(conf); |
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| 330 | close_sql(conf); |
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| 331 | end_sql(); |
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| 332 | } |
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| 333 | |
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| 334 | #endif |
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