Mercurial > hg > orthanc
view Resources/Patches/dcmtk-dcdict_orthanc.cc @ 3727:090022f1b5e1
auto-generation of primitives to handle transfer syntaxes
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Fri, 06 Mar 2020 17:10:03 +0100 |
parents | 0080c9b492e5 |
children |
line wrap: on
line source
// Function by the Orthanc project to load a dictionary from a memory // buffer, which is necessary in sandboxed environments. This is an // adapted version of DcmDataDictionary::loadDictionary(). #include <string> #include <boost/noncopyable.hpp> struct OrthancLinesIterator; // This plain old C class is implemented in "../../Core/Toolbox.h" OrthancLinesIterator* OrthancLinesIterator_Create(const std::string& content); bool OrthancLinesIterator_GetLine(std::string& target, const OrthancLinesIterator* iterator); void OrthancLinesIterator_Next(OrthancLinesIterator* iterator); void OrthancLinesIterator_Free(OrthancLinesIterator* iterator); class LinesIterator : public boost::noncopyable { private: OrthancLinesIterator* iterator_; public: LinesIterator(const std::string& content) : iterator_(NULL) { iterator_ = OrthancLinesIterator_Create(content); } ~LinesIterator() { if (iterator_ != NULL) { OrthancLinesIterator_Free(iterator_); iterator_ = NULL; } } bool GetLine(std::string& target) const { if (iterator_ != NULL) { return OrthancLinesIterator_GetLine(target, iterator_); } else { return false; } } void Next() { if (iterator_ != NULL) { OrthancLinesIterator_Next(iterator_); } } }; OFBool DcmDataDictionary::loadFromMemory(const std::string& content, OFBool errorIfAbsent) { int lineNumber = 0; char* lineFields[DCM_MAXDICTFIELDS + 1]; int fieldsPresent; DcmDictEntry* e; int errorsEncountered = 0; OFBool errorOnThisLine = OFFalse; int i; DcmTagKey key, upperKey; DcmDictRangeRestriction groupRestriction = DcmDictRange_Unspecified; DcmDictRangeRestriction elementRestriction = DcmDictRange_Unspecified; DcmVR vr; char* vrName; char* tagName; char* privCreator; int vmMin, vmMax = 1; const char* standardVersion; LinesIterator iterator(content); std::string line; while (iterator.GetLine(line)) { iterator.Next(); if (line.size() >= DCM_MAXDICTLINESIZE) { DCMDATA_ERROR("DcmDataDictionary: Too long line: " << line); continue; } lineNumber++; if (onlyWhitespace(line.c_str())) { continue; /* ignore this line */ } if (isaCommentLine(line.c_str())) { continue; /* ignore this line */ } errorOnThisLine = OFFalse; /* fields are tab separated */ fieldsPresent = splitFields(line.c_str(), lineFields, DCM_MAXDICTFIELDS, DCM_DICT_FIELD_SEPARATOR_CHAR); /* initialize dict entry fields */ vrName = NULL; tagName = NULL; privCreator = NULL; vmMin = vmMax = 1; standardVersion = "DICOM"; switch (fieldsPresent) { case 0: case 1: case 2: DCMDATA_ERROR("DcmDataDictionary: " << "too few fields (line " << lineNumber << ")"); errorOnThisLine = OFTrue; break; default: DCMDATA_ERROR("DcmDataDictionary: " << "too many fields (line " << lineNumber << "): "); errorOnThisLine = OFTrue; break; case 5: stripWhitespace(lineFields[4]); standardVersion = lineFields[4]; /* drop through to next case label */ case 4: /* the VM field is present */ if (!parseVMField(lineFields[3], vmMin, vmMax)) { DCMDATA_ERROR("DcmDataDictionary: " << "bad VM field (line " << lineNumber << "): " << lineFields[3]); errorOnThisLine = OFTrue; } /* drop through to next case label */ case 3: if (!parseWholeTagField(lineFields[0], key, upperKey, groupRestriction, elementRestriction, privCreator)) { DCMDATA_ERROR("DcmDataDictionary: " << "bad Tag field (line " << lineNumber << "): " << lineFields[0]); errorOnThisLine = OFTrue; } else { /* all is OK */ vrName = lineFields[1]; stripWhitespace(vrName); tagName = lineFields[2]; stripWhitespace(tagName); } } if (!errorOnThisLine) { /* check the VR Field */ vr.setVR(vrName); if (vr.getEVR() == EVR_UNKNOWN) { DCMDATA_ERROR("DcmDataDictionary: " << "bad VR field (line " << lineNumber << "): " << vrName); errorOnThisLine = OFTrue; } } if (!errorOnThisLine) { e = new DcmDictEntry( key.getGroup(), key.getElement(), upperKey.getGroup(), upperKey.getElement(), vr, tagName, vmMin, vmMax, standardVersion, OFTrue, privCreator); e->setGroupRangeRestriction(groupRestriction); e->setElementRangeRestriction(elementRestriction); addEntry(e); } for (i = 0; i < fieldsPresent; i++) { free(lineFields[i]); lineFields[i] = NULL; } delete[] privCreator; if (errorOnThisLine) { errorsEncountered++; } } /* return OFFalse in case of errors and set internal state accordingly */ if (errorsEncountered == 0) { dictionaryLoaded = OFTrue; return OFTrue; } else { dictionaryLoaded = OFFalse; return OFFalse; } }