1 /*****************************************************************************/ 2 // Expander 3 // Written by Jérôme Duval 4 // 5 // ExpanderRules.cpp 6 // 7 // 8 // Copyright (c) 2004 OpenBeOS Project 9 // 10 // Permission is hereby granted, free of charge, to any person obtaining a 11 // copy of this software and associated documentation files (the "Software"), 12 // to deal in the Software without restriction, including without limitation 13 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 14 // and/or sell copies of the Software, and to permit persons to whom the 15 // Software is furnished to do so, subject to the following conditions: 16 // 17 // The above copyright notice and this permission notice shall be included 18 // in all copies or substantial portions of the Software. 19 // 20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 21 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26 // DEALINGS IN THE SOFTWARE. 27 /*****************************************************************************/ 28 #include "ExpanderRules.h" 29 30 #include <FindDirectory.h> 31 #include <stdlib.h> 32 #include <Path.h> 33 #include <NodeInfo.h> 34 #include <stdio.h> 35 #include <unistd.h> 36 37 ExpanderRule::ExpanderRule(BString mimetype, BString filenameExtension, 38 BString listingCmd, BString expandCmd) 39 : fMimeType(mimetype.String()), 40 fFilenameExtension(filenameExtension), 41 fListingCmd(listingCmd), 42 fExpandCmd(expandCmd) 43 { 44 45 } 46 47 48 ExpanderRule::ExpanderRule(const char* mimetype, const char* filenameExtension, 49 const char* listingCmd, const char* expandCmd) 50 : fMimeType(mimetype), 51 fFilenameExtension(filenameExtension), 52 fListingCmd(listingCmd), 53 fExpandCmd(expandCmd) 54 { 55 56 } 57 58 59 ExpanderRules::ExpanderRules() 60 { 61 fList.AddItem(new ExpanderRule("", ".tar.gz", "zcat %s | tar -tvf -", "zcat %s | tar -xvf -")); 62 fList.AddItem(new ExpanderRule("", ".tar.bz2", "bzcat %s | tar -tvf -", "bzcat %s | tar -xvf -")); 63 fList.AddItem(new ExpanderRule("", ".tar.Z", "zcat %s | tar -tvf -", "zcat %s | tar -xvf -")); 64 fList.AddItem(new ExpanderRule("", ".tgz", "zcat %s | tar -tvf -", "zcat %s | tar -xvf -")); 65 fList.AddItem(new ExpanderRule("application/x-tar", ".tar", "tar -tvf %s", "tar -xf %s")); 66 fList.AddItem(new ExpanderRule("application/x-gzip", ".gz", "echo %s | sed 's/.gz$//g'", "gunzip %s")); 67 fList.AddItem(new ExpanderRule("application/x-bzip2", ".bz2", "echo %s | sed 's/.bz2$//g'", "bunzip2 %s")); 68 fList.AddItem(new ExpanderRule("application/zip", ".zip", "unzip -l %s", "unzip -o %s")); 69 fList.AddItem(new ExpanderRule("application/x-zip-compressed", ".zip", "unzip -l %s", "unzip -o %s")); 70 71 BFile file; 72 if (Open(&file) != B_OK) 73 return; 74 75 int fd = file.Dup(); 76 FILE * f = fdopen(fd, "r"); 77 78 char buffer[1024]; 79 BString strings[4]; 80 while (fgets(buffer, 1024-1, f)!=NULL) { 81 int32 i=0, j=0; 82 int32 firstQuote = -1; 83 while (buffer[i]!= '#' && buffer[i]!= '\n' && j<4) { 84 if (((j==0)||(j>1))&&(buffer[i] == '"')) { 85 if (firstQuote >= 0) { 86 strings[j++].SetTo(&buffer[firstQuote+1], i-firstQuote-1); 87 firstQuote = -1; 88 } else 89 firstQuote = i; 90 } else if ((j==1)&&((buffer[i]==' ')||(buffer[i]=='\t'))){ 91 if (firstQuote >= 0) { 92 if (firstQuote+1!=i) { 93 strings[j++].SetTo(&buffer[firstQuote+1], i-firstQuote-1); 94 firstQuote = -1; 95 } else 96 firstQuote = i; 97 } else 98 firstQuote = i; 99 } 100 i++; 101 } 102 if (j==4) { 103 fList.AddItem(new ExpanderRule(strings[0], strings[1], strings[2], strings[3])); 104 } 105 } 106 fclose(f); 107 close(fd); 108 } 109 110 111 ExpanderRules::~ExpanderRules() 112 { 113 void *item; 114 while ((item = fList.RemoveItem((int32)0))) 115 delete item; 116 } 117 118 119 status_t 120 ExpanderRules::Open(BFile *file) 121 { 122 BPath path; 123 if (find_directory(B_USER_CONFIG_DIRECTORY, &path) != B_OK) 124 return B_ERROR; 125 126 path.Append("etc/expander.rules"); 127 if (file->SetTo(path.Path(), B_READ_ONLY) == B_OK) 128 return B_OK; 129 130 if (find_directory(B_COMMON_ETC_DIRECTORY, &path) != B_OK) 131 return B_ERROR; 132 133 path.Append("expander.rules"); 134 135 return file->SetTo(path.Path(), B_READ_ONLY); 136 } 137 138 139 ExpanderRule * 140 ExpanderRules::MatchingRule(BString &fileName, const char *filetype) 141 { 142 int32 count = fList.CountItems(); 143 int32 length = fileName.Length(); 144 for (int32 i=0; i<count; i++) { 145 ExpanderRule *rule = (ExpanderRule *)fList.ItemAt(i); 146 if (((!rule->MimeType().IsValid()) || (rule->MimeType()==filetype)) 147 && (fileName.FindLast(rule->FilenameExtension())==(length-rule->FilenameExtension().Length()))) 148 return rule; 149 } 150 return NULL; 151 } 152 153 154 ExpanderRule * 155 ExpanderRules::MatchingRule(const entry_ref *ref) 156 { 157 BEntry entry(ref, true); 158 BNode node(&entry); 159 BNodeInfo nodeInfo(&node); 160 char type[B_MIME_TYPE_LENGTH]; 161 nodeInfo.GetType(type); 162 BString fileName(ref->name); 163 return MatchingRule(fileName, type); 164 } 165 166 167 RuleRefFilter::RuleRefFilter(ExpanderRules &rules) 168 : BRefFilter(), 169 fRules(rules) 170 { 171 } 172 173 174 bool 175 RuleRefFilter::Filter(const entry_ref *ref, BNode* node, struct stat *st, 176 const char *filetype) 177 { 178 if (node->IsDirectory() || node->IsSymLink()) 179 return true; 180 181 BString fileName(ref->name); 182 return (fRules.MatchingRule(fileName, filetype)!=NULL); 183 } 184