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author | Thomas E. Dickey <dickey@invisible-island.net> | 2010-04-29 22:00:22 -0400 |
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committer | Thomas E. Dickey <dickey@invisible-island.net> | 2010-04-29 22:00:22 -0400 |
commit | dc748b1c47baadafae2c90f0e188927b11b7e029 (patch) | |
tree | c728869dc6504570b9bffb7459ccbdd1bf264a9f /WWW/Library/Implementation/HTVMS_WaisProt.c | |
parent | d4093cadbda3787dfb165954f8f6521790cfac86 (diff) | |
download | lynx-snapshots-dc748b1c47baadafae2c90f0e188927b11b7e029.tar.gz |
snapshot of project "lynx", label v2_8_8dev_6c
Diffstat (limited to 'WWW/Library/Implementation/HTVMS_WaisProt.c')
-rw-r--r-- | WWW/Library/Implementation/HTVMS_WaisProt.c | 2467 |
1 files changed, 0 insertions, 2467 deletions
diff --git a/WWW/Library/Implementation/HTVMS_WaisProt.c b/WWW/Library/Implementation/HTVMS_WaisProt.c deleted file mode 100644 index fbd24867..00000000 --- a/WWW/Library/Implementation/HTVMS_WaisProt.c +++ /dev/null @@ -1,2467 +0,0 @@ -/* HTVMS_WAISProt.c - * - * Adaptation for Lynx by F.Macrides (macrides@sci.wfeb.edu) - * - * 31-May-1994 FM Initial version. - * - *----------------------------------------------------------------------*/ - -/* - * Routines originally from WProt.c -- FM - * - *----------------------------------------------------------------------*/ -/* WIDE AREA INFORMATION SERVER SOFTWARE: - * No guarantees or restrictions. See the readme file for the full standard - * disclaimer. - - * 3.26.90 Harry Morris, morris@think.com - * 3.30.90 Harry Morris - * - removed chunk code from WAISSearchAPDU, - * - added makeWAISQueryType1Query() and readWAISType1Query() which replace - * makeWAISQueryTerms() and makeWAISQueryDocs(). - * 4.11.90 HWM - generalized conditional includes (see c-dialect.h) - * - renamed makeWAISType1Query() to makeWAISTextQuery() - * renamed readWAISType1Query() to readWAISTextQuery() - * 5.29.90 TS - fixed bug in makeWAISQueryDocs - * added CSTFreeWAISFoo functions - */ - -#define _C_WAIS_protocol_ - -/* This file implements the Z39.50 extensions required for WAIS -*/ - -#include <HTUtils.h> -#include <HTVMS_WaisUI.h> -#include <HTVMS_WaisProt.h> - -#include <LYLeaks.h> - -/* very rough estimates of the size of an object */ -#define DefWAISInitResponseSize (size_t)200 -#define DefWAISSearchSize (size_t)3000 -#define DefWAISSearchResponseSize (size_t)6000 -#define DefWAISPresentSize (size_t)1000 -#define DefWAISPresentResponseSize (size_t)6000 -#define DefWAISDocHeaderSize (size_t)500 -#define DefWAISShortHeaderSize (size_t)200 -#define DefWAISLongHeaderSize (size_t)800 -#define DefWAISDocTextSize (size_t)6000 -#define DefWAISDocHeadlineSize (size_t)500 -#define DefWAISDocCodeSize (size_t)500 - -#define RESERVE_SPACE_FOR_WAIS_HEADER(len) \ - if (*len > 0) \ - *len -= header_len; - -#define S_MALLOC(type) (type*)s_malloc(sizeof(type)) -#define S_MALLOC2(type) (type*)s_malloc(sizeof(type) * 2) - -#define S_REALLOC2(type, ptr, num) (type*)s_realloc((char*)ptr, (sizeof(type) * (num + 2))) - -/*----------------------------------------------------------------------*/ - -static unsigned long userInfoTagSize(data_tag tag, - unsigned long length) -/* return the number of bytes required to write the user info tag and - length - */ -{ - unsigned long size; - - /* calculate bytes required to represent tag. max tag is 16K */ - size = writtenCompressedIntSize(tag); - size += writtenCompressedIntSize(length); - - return (size); -} - -/*----------------------------------------------------------------------*/ - -static char *writeUserInfoHeader(data_tag tag, - long infoSize, - long estHeaderSize, - char *buffer, - long *len) -/* write the tag and size, making sure the info fits. return the true end - of the info (after adjustment) note that the argument infoSize includes - estHeaderSize. Note that the argument len is the number of bytes remaining - in the buffer. Since we write the tag and size at the begining of the - buffer (in space that we reserved) we don't want to pass len the calls which - do that writing. - */ -{ - long dummyLen = 100; /* plenty of space for a tag and size */ - char *buf = buffer; - long realSize = infoSize - estHeaderSize; - long realHeaderSize = userInfoTagSize(tag, realSize); - - if (buffer == NULL || *len == 0) - return (NULL); - - /* write the tag */ - buf = writeTag(tag, buf, &dummyLen); - - /* see if the if the header size was correct. if not, - we have to shift the info to fit the real header size */ - if (estHeaderSize != realHeaderSize) { /* make sure there is enough space */ - CHECK_FOR_SPACE_LEFT(realHeaderSize - estHeaderSize, len); - memmove(buffer + realHeaderSize, buffer + estHeaderSize, (size_t) (realSize)); - } - - /* write the size */ - writeCompressedInteger(realSize, buf, &dummyLen); - - /* return the true end of buffer */ - return (buffer + realHeaderSize + realSize); -} - -/*----------------------------------------------------------------------*/ - -static char *readUserInfoHeader(data_tag *tag, - unsigned long *num, - char *buffer) -/* read the tag and size */ -{ - char *buf = buffer; - - buf = readTag(tag, buf); - buf = readCompressedInteger(num, buf); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISInitResponse *makeWAISInitResponse(long chunkCode, - long chunkIDLen, - char *chunkMarker, - char *highlightMarker, - char *deHighlightMarker, - char *newLineChars) -/* create a WAIS init response object */ -{ - WAISInitResponse *init = S_MALLOC(WAISInitResponse); - - init->ChunkCode = chunkCode; /* note: none are copied! */ - init->ChunkIDLength = chunkIDLen; - init->ChunkMarker = chunkMarker; - init->HighlightMarker = highlightMarker; - init->DeHighlightMarker = deHighlightMarker; - init->NewlineCharacters = newLineChars; - - return (init); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISInitResponse(WAISInitResponse *init) -/* free an object made with makeWAISInitResponse */ -{ - s_free(init->ChunkMarker); - s_free(init->HighlightMarker); - s_free(init->DeHighlightMarker); - s_free(init->NewlineCharacters); - s_free(init); -} - -/*----------------------------------------------------------------------*/ - -char *writeInitResponseInfo(InitResponseAPDU *init, - char *buffer, - long *len) -/* write an init response object */ -{ - unsigned long header_len = userInfoTagSize(DT_UserInformationLength, - DefWAISInitResponseSize); - char *buf = buffer + header_len; - WAISInitResponse *info = (WAISInitResponse *) init->UserInformationField; - unsigned long size; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeNum(info->ChunkCode, DT_ChunkCode, buf, len); - buf = writeNum(info->ChunkIDLength, DT_ChunkIDLength, buf, len); - buf = writeString(info->ChunkMarker, DT_ChunkMarker, buf, len); - buf = writeString(info->HighlightMarker, DT_HighlightMarker, buf, len); - buf = writeString(info->DeHighlightMarker, DT_DeHighlightMarker, buf, len); - buf = writeString(info->NewlineCharacters, DT_NewlineCharacters, buf, len); - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_UserInformationLength, - size, - header_len, - buffer, - len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readInitResponseInfo(void **info, - char *buffer) -/* read an init response object */ -{ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - long chunkCode, chunkIDLen; - data_tag tag1; - char *chunkMarker = NULL; - char *highlightMarker = NULL; - char *deHighlightMarker = NULL; - char *newLineChars = NULL; - - chunkCode = chunkIDLen = UNUSED; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_ChunkCode: - buf = readNum(&chunkCode, buf); - break; - case DT_ChunkIDLength: - buf = readNum(&chunkIDLen, buf); - break; - case DT_ChunkMarker: - buf = readString(&chunkMarker, buf); - break; - case DT_HighlightMarker: - buf = readString(&highlightMarker, buf); - break; - case DT_DeHighlightMarker: - buf = readString(&deHighlightMarker, buf); - break; - case DT_NewlineCharacters: - buf = readString(&newLineChars, buf); - break; - default: - s_free(highlightMarker); - s_free(deHighlightMarker); - s_free(newLineChars); - REPORT_READ_ERROR(buf); - break; - } - } - - *info = (void *) makeWAISInitResponse(chunkCode, chunkIDLen, chunkMarker, - highlightMarker, deHighlightMarker, - newLineChars); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISSearch *makeWAISSearch(char *seedWords, - DocObj **docs, - char **textList, - long dateFactor, - char *beginDateRange, - char *endDateRange, - long maxDocsRetrieved) - -/* create a type 3 query object */ -{ - WAISSearch *query = S_MALLOC(WAISSearch); - - query->SeedWords = seedWords; /* not copied! */ - query->Docs = docs; /* not copied! */ - query->TextList = textList; /* not copied! */ - query->DateFactor = dateFactor; - query->BeginDateRange = beginDateRange; - query->EndDateRange = endDateRange; - query->MaxDocumentsRetrieved = maxDocsRetrieved; - - return (query); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISSearch(WAISSearch *query) - -/* destroy an object made with makeWAISSearch() */ -{ - void *ptr = NULL; - long i; - - s_free(query->SeedWords); - - if (query->Docs != NULL) - for (i = 0, ptr = (void *) query->Docs[i]; - ptr != NULL; - ptr = (void *) query->Docs[++i]) - freeDocObj((DocObj *) ptr); - s_free(query->Docs); - - if (query->TextList != NULL) /* XXX revisit when textlist is fully defined */ - for (i = 0, ptr = (void *) query->TextList[i]; - ptr != NULL; - ptr = (void *) query->TextList[++i]) - s_free(ptr); - s_free(query->TextList); - - s_free(query->BeginDateRange); - s_free(query->EndDateRange); - s_free(query); -} - -/*----------------------------------------------------------------------*/ - -DocObj *makeDocObjUsingWholeDocument(any *docID, - char *type) - -/* construct a document object using byte chunks - only for use by - servers */ -{ - DocObj *doc = S_MALLOC(DocObj); - - doc->DocumentID = docID; /* not copied! */ - doc->Type = type; /* not copied! */ - doc->ChunkCode = CT_document; - return (doc); -} - -/*----------------------------------------------------------------------*/ - -DocObj *makeDocObjUsingLines(any *docID, - char *type, - long start, - long end) - -/* construct a document object using line chunks - only for use by - servers */ -{ - DocObj *doc = S_MALLOC(DocObj); - - doc->ChunkCode = CT_line; - doc->DocumentID = docID; /* not copied */ - doc->Type = type; /* not copied! */ - doc->ChunkStart.Pos = start; - doc->ChunkEnd.Pos = end; - return (doc); -} - -/*----------------------------------------------------------------------*/ - -DocObj *makeDocObjUsingBytes(any *docID, - char *type, - long start, - long end) - -/* construct a document object using byte chunks - only for use by - servers */ -{ - DocObj *doc = S_MALLOC(DocObj); - - doc->ChunkCode = CT_byte; - doc->DocumentID = docID; /* not copied */ - doc->Type = type; /* not copied! */ - doc->ChunkStart.Pos = start; - doc->ChunkEnd.Pos = end; - return (doc); -} - -/*----------------------------------------------------------------------*/ - -DocObj *makeDocObjUsingParagraphs(any *docID, - char *type, - any *start, - any *end) - -/* construct a document object using byte chunks - only for use by - servers */ -{ - DocObj *doc = S_MALLOC(DocObj); - - doc->ChunkCode = CT_paragraph; - doc->DocumentID = docID; /* not copied */ - doc->Type = type; - doc->ChunkStart.ID = start; - doc->ChunkEnd.ID = end; - return (doc); -} - -/*----------------------------------------------------------------------*/ - -void freeDocObj(DocObj *doc) - -/* free a docObj */ -{ - freeAny(doc->DocumentID); - s_free(doc->Type); - if (doc->ChunkCode == CT_paragraph) { - freeAny(doc->ChunkStart.ID); - freeAny(doc->ChunkEnd.ID); - } - s_free(doc); -} - -/*----------------------------------------------------------------------*/ - -static char *writeDocObj(DocObj *doc, - char *buffer, - long *len) - -/* write as little as we can about the doc obj */ -{ - char *buf = buffer; - - /* we alwasy have to write the id, but its tag depends on if its a chunk */ - if (doc->ChunkCode == CT_document) - buf = writeAny(doc->DocumentID, DT_DocumentID, buf, len); - else - buf = writeAny(doc->DocumentID, DT_DocumentIDChunk, buf, len); - - if (doc->Type != NULL) - buf = writeString(doc->Type, DT_TYPE, buf, len); - - switch (doc->ChunkCode) { - case CT_document: - /* do nothing - there is no chunk data */ - break; - case CT_byte: - case CT_line: - buf = writeNum(doc->ChunkCode, DT_ChunkCode, buf, len); - buf = writeNum(doc->ChunkStart.Pos, DT_ChunkStartID, buf, len); - buf = writeNum(doc->ChunkEnd.Pos, DT_ChunkEndID, buf, len); - break; - case CT_paragraph: - buf = writeNum(doc->ChunkCode, DT_ChunkCode, buf, len); - buf = writeAny(doc->ChunkStart.ID, DT_ChunkStartID, buf, len); - buf = writeAny(doc->ChunkEnd.ID, DT_ChunkEndID, buf, len); - break; - default: - panic("Implementation error: unknown chuck type %ld", - doc->ChunkCode); - break; - } - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -static char *readDocObj(DocObj **doc, - char *buffer) - -/* read whatever we have about the new document */ -{ - char *buf = buffer; - data_tag tag; - - *doc = S_MALLOC(DocObj); - - tag = peekTag(buf); - buf = readAny(&((*doc)->DocumentID), buf); - - if (tag == DT_DocumentID) { - (*doc)->ChunkCode = CT_document; - tag = peekTag(buf); - if (tag == DT_TYPE) /* XXX depends on DT_TYPE != what comes next */ - buf = readString(&((*doc)->Type), buf); - /* ChunkStart and ChunkEnd are undefined */ - } else if (tag == DT_DocumentIDChunk) { - boolean readParagraphs = false; /* for cleanup */ - - tag = peekTag(buf); - if (tag == DT_TYPE) /* XXX depends on DT_TYPE != CT_FOO */ - buf = readString(&((*doc)->Type), buf); - buf = readNum(&((*doc)->ChunkCode), buf); - switch ((*doc)->ChunkCode) { - case CT_byte: - case CT_line: - buf = readNum(&((*doc)->ChunkStart.Pos), buf); - buf = readNum(&((*doc)->ChunkEnd.Pos), buf); - break; - case CT_paragraph: - readParagraphs = true; - buf = readAny(&((*doc)->ChunkStart.ID), buf); - buf = readAny(&((*doc)->ChunkEnd.ID), buf); - break; - default: - freeAny((*doc)->DocumentID); - if (readParagraphs) { - freeAny((*doc)->ChunkStart.ID); - freeAny((*doc)->ChunkEnd.ID); - } - s_free(doc); - REPORT_READ_ERROR(buf); - break; - } - } else { - freeAny((*doc)->DocumentID); - s_free(*doc); - REPORT_READ_ERROR(buf); - } - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *writeSearchInfo(SearchAPDU *query, - char *buffer, - long *len) - -/* write out a WAIS query (type 1 or 3) */ -{ - if (strcmp(query->QueryType, QT_TextRetrievalQuery) == 0) { - return (writeAny((any *) query->Query, DT_Query, buffer, len)); - } else { - unsigned long header_len = userInfoTagSize(DT_UserInformationLength, - DefWAISSearchSize); - char *buf = buffer + header_len; - WAISSearch *info = (WAISSearch *) query->Query; - unsigned long size; - long i; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeString(info->SeedWords, DT_SeedWords, buf, len); - - if (info->Docs != NULL) { - for (i = 0; info->Docs[i] != NULL; i++) { - buf = writeDocObj(info->Docs[i], buf, len); - } - } - - /* XXX text list */ - - buf = writeNum(info->DateFactor, - DT_DateFactor, - buf, - len); - buf = writeString(info->BeginDateRange, - DT_BeginDateRange, - buf, - len); - buf = writeString(info->EndDateRange, - DT_EndDateRange, - buf, - len); - buf = writeNum(info->MaxDocumentsRetrieved, - DT_MaxDocumentsRetrieved, - buf, - len); - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_UserInformationLength, - size, - header_len, - buffer, - len); - - return (buf); - } -} - -/*----------------------------------------------------------------------*/ - -char *readSearchInfo(void **info, - char *buffer) - -/* read a WAIS query (type 1 or 3) */ -{ - data_tag type = peekTag(buffer); - - if (type == DT_Query) /* this is a type 1 query */ - { - char *buf = buffer; - any *query = NULL; - - buf = readAny(&query, buf); - *info = (void *) query; - return (buf); - } else { /* a type 3 query */ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - data_tag tag1; - char *seedWords = NULL; - char *beginDateRange = NULL; - char *endDateRange = NULL; - long dateFactor, maxDocsRetrieved; - char **textList = NULL; - DocObj **docIDs = NULL; - DocObj *doc = NULL; - long docs = 0; - long i; - void *ptr = NULL; - - dateFactor = maxDocsRetrieved = UNUSED; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_SeedWords: - buf = readString(&seedWords, buf); - break; - case DT_DocumentID: - case DT_DocumentIDChunk: - if (docIDs == NULL) /* create a new doc list */ - { - docIDs = S_MALLOC2(DocObj *); - } else { /* grow the doc list */ - docIDs = S_REALLOC2(DocObj *, docIDs, docs); - } - buf = readDocObj(&doc, buf); - if (buf == NULL) { - s_free(seedWords); - s_free(beginDateRange); - s_free(endDateRange); - if (docIDs != NULL) - for (i = 0, ptr = (void *) docIDs[i]; - ptr != NULL; - ptr = (void *) docIDs[++i]) - freeDocObj((DocObj *) ptr); - s_free(docIDs); - /* XXX should also free textlist when it is fully defined */ - } - RETURN_ON_NULL(buf); - docIDs[docs++] = doc; /* put it in the list */ - docIDs[docs] = NULL; - break; - case DT_TextList: - /* XXX */ - break; - case DT_DateFactor: - buf = readNum(&dateFactor, buf); - break; - case DT_BeginDateRange: - buf = readString(&beginDateRange, buf); - break; - case DT_EndDateRange: - buf = readString(&endDateRange, buf); - break; - case DT_MaxDocumentsRetrieved: - buf = readNum(&maxDocsRetrieved, buf); - break; - default: - s_free(seedWords); - s_free(beginDateRange); - s_free(endDateRange); - if (docIDs != NULL) - for (i = 0, ptr = (void *) docIDs[i]; - ptr != NULL; - ptr = (void *) docIDs[++i]) - freeDocObj((DocObj *) ptr); - s_free(docIDs); - /* XXX should also free textlist when it is fully defined */ - REPORT_READ_ERROR(buf); - break; - } - } - - *info = (void *) makeWAISSearch(seedWords, docIDs, textList, - dateFactor, beginDateRange, endDateRange, - maxDocsRetrieved); - return (buf); - } -} - -/*----------------------------------------------------------------------*/ - -WAISDocumentHeader *makeWAISDocumentHeader(any *docID, - long versionNumber, - long score, - long bestMatch, - long docLen, - long lines, - char **types, - char *source, - char *date, - char *headline, - char *originCity) - -/* construct a standard document header, note that no fields are copied! - if the application needs to save these fields, it should copy them, - or set the field in this object to NULL before freeing it. - */ -{ - WAISDocumentHeader *header = S_MALLOC(WAISDocumentHeader); - - header->DocumentID = docID; - header->VersionNumber = versionNumber; - header->Score = score; - header->BestMatch = bestMatch; - header->DocumentLength = docLen; - header->Lines = lines; - header->Types = types; - header->Source = source; - header->Date = date; - header->Headline = headline; - header->OriginCity = originCity; - - return (header); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISDocumentHeader(WAISDocumentHeader *header) -{ - freeAny(header->DocumentID); - doList((void **) header->Types, fs_free); /* can't use the macro here ! */ - s_free(header->Types); - s_free(header->Source); - s_free(header->Date); - s_free(header->Headline); - s_free(header->OriginCity); - s_free(header); -} - -/*----------------------------------------------------------------------*/ - -char *writeWAISDocumentHeader(WAISDocumentHeader *header, char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_DocumentHeaderGroup, - DefWAISDocHeaderSize); - char *buf = buffer + header_len; - unsigned long size1; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeAny(header->DocumentID, DT_DocumentID, buf, len); - buf = writeNum(header->VersionNumber, DT_VersionNumber, buf, len); - buf = writeNum(header->Score, DT_Score, buf, len); - buf = writeNum(header->BestMatch, DT_BestMatch, buf, len); - buf = writeNum(header->DocumentLength, DT_DocumentLength, buf, len); - buf = writeNum(header->Lines, DT_Lines, buf, len); - if (header->Types != NULL) { - long size; - char *ptr = NULL; - long i; - - buf = writeTag(DT_TYPE_BLOCK, buf, len); - for (i = 0, size = 0, ptr = header->Types[i]; - ptr != NULL; - ptr = header->Types[++i]) { - long typeSize = strlen(ptr); - - size += writtenTagSize(DT_TYPE); - size += writtenCompressedIntSize(typeSize); - size += typeSize; - } - buf = writeCompressedInteger((unsigned long) size, buf, len); - for (i = 0, ptr = header->Types[i]; ptr != NULL; ptr = header->Types[++i]) - buf = writeString(ptr, DT_TYPE, buf, len); - } - buf = writeString(header->Source, DT_Source, buf, len); - buf = writeString(header->Date, DT_Date, buf, len); - buf = writeString(header->Headline, DT_Headline, buf, len); - buf = writeString(header->OriginCity, DT_OriginCity, buf, len); - - /* now write the header and size */ - size1 = buf - buffer; - buf = writeUserInfoHeader(DT_DocumentHeaderGroup, - size1, - header_len, - buffer, - len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readWAISDocumentHeader(WAISDocumentHeader **header, char *buffer) -{ - char *buf = buffer; - unsigned long size1; - unsigned long headerSize; - data_tag tag1; - any *docID = NULL; - long versionNumber, score, bestMatch, docLength, lines; - char **types = NULL; - char *source = NULL; - char *date = NULL; - char *headline = NULL; - char *originCity = NULL; - - versionNumber = score = bestMatch = docLength = lines = UNUSED; - - buf = readUserInfoHeader(&tag1, &size1, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size1 + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_DocumentID: - buf = readAny(&docID, buf); - break; - case DT_VersionNumber: - buf = readNum(&versionNumber, buf); - break; - case DT_Score: - buf = readNum(&score, buf); - break; - case DT_BestMatch: - buf = readNum(&bestMatch, buf); - break; - case DT_DocumentLength: - buf = readNum(&docLength, buf); - break; - case DT_Lines: - buf = readNum(&lines, buf); - break; - case DT_TYPE_BLOCK: - { - unsigned long size = -1; - long numTypes = 0; - - buf = readTag(&tag, buf); - buf = readCompressedInteger(&size, buf); - while (size > 0) { - char *type = NULL; - char *originalBuf = buf; - - buf = readString(&type, buf); - types = S_REALLOC2(char *, types, numTypes); - - types[numTypes++] = type; - types[numTypes] = NULL; - size -= (buf - originalBuf); - } - } - /* FALLTHRU */ - case DT_Source: - buf = readString(&source, buf); - break; - case DT_Date: - buf = readString(&date, buf); - break; - case DT_Headline: - buf = readString(&headline, buf); - break; - case DT_OriginCity: - buf = readString(&originCity, buf); - break; - default: - freeAny(docID); - s_free(source); - s_free(date); - s_free(headline); - s_free(originCity); - REPORT_READ_ERROR(buf); - break; - } - } - - *header = makeWAISDocumentHeader(docID, versionNumber, score, bestMatch, - docLength, lines, types, source, date, headline, - originCity); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISDocumentShortHeader *makeWAISDocumentShortHeader(any *docID, - long versionNumber, - long score, - long bestMatch, - long docLen, - long lines) -/* construct a short document header, note that no fields are copied! - if the application needs to save these fields, it should copy them, - or set the field in this object to NULL before freeing it. - */ -{ - WAISDocumentShortHeader *header = S_MALLOC(WAISDocumentShortHeader); - - header->DocumentID = docID; - header->VersionNumber = versionNumber; - header->Score = score; - header->BestMatch = bestMatch; - header->DocumentLength = docLen; - header->Lines = lines; - - return (header); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISDocumentShortHeader(WAISDocumentShortHeader *header) -{ - freeAny(header->DocumentID); - s_free(header); -} - -/*----------------------------------------------------------------------*/ - -char *writeWAISDocumentShortHeader(WAISDocumentShortHeader *header, char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_DocumentShortHeaderGroup, - DefWAISShortHeaderSize); - char *buf = buffer + header_len; - unsigned long size; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeAny(header->DocumentID, DT_DocumentID, buf, len); - buf = writeNum(header->VersionNumber, DT_VersionNumber, buf, len); - buf = writeNum(header->Score, DT_Score, buf, len); - buf = writeNum(header->BestMatch, DT_BestMatch, buf, len); - buf = writeNum(header->DocumentLength, DT_DocumentLength, buf, len); - buf = writeNum(header->Lines, DT_Lines, buf, len); - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_DocumentShortHeaderGroup, - size, - header_len, - buffer, - len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readWAISDocumentShortHeader(WAISDocumentShortHeader **header, char *buffer) -{ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - data_tag tag1; - any *docID = NULL; - long versionNumber, score, bestMatch, docLength, lines; - - versionNumber = score = bestMatch = docLength = lines = UNUSED; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_DocumentID: - buf = readAny(&docID, buf); - break; - case DT_VersionNumber: - buf = readNum(&versionNumber, buf); - break; - case DT_Score: - buf = readNum(&score, buf); - break; - case DT_BestMatch: - buf = readNum(&bestMatch, buf); - break; - case DT_DocumentLength: - buf = readNum(&docLength, buf); - break; - case DT_Lines: - buf = readNum(&lines, buf); - break; - default: - freeAny(docID); - REPORT_READ_ERROR(buf); - break; - } - } - - *header = makeWAISDocumentShortHeader(docID, versionNumber, score, bestMatch, - docLength, lines); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISDocumentLongHeader *makeWAISDocumentLongHeader(any *docID, - long versionNumber, - long score, - long bestMatch, - long docLen, - long lines, - char **types, - char *source, - char *date, - char *headline, - char *originCity, - char *stockCodes, - char *companyCodes, - char *industryCodes) -/* construct a long document header, note that no fields are copied! - if the application needs to save these fields, it should copy them, - or set the field in this object to NULL before freeing it. - */ -{ - WAISDocumentLongHeader *header = S_MALLOC(WAISDocumentLongHeader); - - header->DocumentID = docID; - header->VersionNumber = versionNumber; - header->Score = score; - header->BestMatch = bestMatch; - header->DocumentLength = docLen; - header->Lines = lines; - header->Types = types; - header->Source = source; - header->Date = date; - header->Headline = headline; - header->OriginCity = originCity; - header->StockCodes = stockCodes; - header->CompanyCodes = companyCodes; - header->IndustryCodes = industryCodes; - - return (header); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISDocumentLongHeader(WAISDocumentLongHeader *header) -{ - freeAny(header->DocumentID); - doList((void **) header->Types, fs_free); /* can't use the macro here! */ - s_free(header->Source); - s_free(header->Date); - s_free(header->Headline); - s_free(header->OriginCity); - s_free(header->StockCodes); - s_free(header->CompanyCodes); - s_free(header->IndustryCodes); - s_free(header); -} - -/*----------------------------------------------------------------------*/ - -char *writeWAISDocumentLongHeader(WAISDocumentLongHeader *header, char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_DocumentLongHeaderGroup, - DefWAISLongHeaderSize); - char *buf = buffer + header_len; - unsigned long size1; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeAny(header->DocumentID, DT_DocumentID, buf, len); - buf = writeNum(header->VersionNumber, DT_VersionNumber, buf, len); - buf = writeNum(header->Score, DT_Score, buf, len); - buf = writeNum(header->BestMatch, DT_BestMatch, buf, len); - buf = writeNum(header->DocumentLength, DT_DocumentLength, buf, len); - buf = writeNum(header->Lines, DT_Lines, buf, len); - if (header->Types != NULL) { - long size; - char *ptr = NULL; - long i; - - buf = writeTag(DT_TYPE_BLOCK, buf, len); - for (i = 0, size = 0, ptr = header->Types[i]; - ptr != NULL; - ptr = header->Types[++i]) { - long typeSize = strlen(ptr); - - size += writtenTagSize(DT_TYPE); - size += writtenCompressedIntSize(typeSize); - size += typeSize; - } - buf = writeCompressedInteger((unsigned long) size, buf, len); - for (i = 0, ptr = header->Types[i]; ptr != NULL; ptr = header->Types[++i]) - buf = writeString(ptr, DT_TYPE, buf, len); - } - buf = writeString(header->Source, DT_Source, buf, len); - buf = writeString(header->Date, DT_Date, buf, len); - buf = writeString(header->Headline, DT_Headline, buf, len); - buf = writeString(header->OriginCity, DT_OriginCity, buf, len); - buf = writeString(header->StockCodes, DT_StockCodes, buf, len); - buf = writeString(header->CompanyCodes, DT_CompanyCodes, buf, len); - buf = writeString(header->IndustryCodes, DT_IndustryCodes, buf, len); - - /* now write the header and size */ - size1 = buf - buffer; - buf = writeUserInfoHeader(DT_DocumentLongHeaderGroup, - size1, - header_len, - buffer, - len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readWAISDocumentLongHeader(WAISDocumentLongHeader **header, char *buffer) -{ - char *buf = buffer; - unsigned long size1; - unsigned long headerSize; - data_tag tag1; - any *docID; - long versionNumber, score, bestMatch, docLength, lines; - char **types; - char *source, *date, *headline, *originCity, *stockCodes, *companyCodes, *industryCodes; - - docID = NULL; - versionNumber = - score = - bestMatch = - docLength = - lines = UNUSED; - types = NULL; - source = - date = - headline = - originCity = - stockCodes = - companyCodes = - industryCodes = NULL; - - buf = readUserInfoHeader(&tag1, &size1, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size1 + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_DocumentID: - buf = readAny(&docID, buf); - break; - case DT_VersionNumber: - buf = readNum(&versionNumber, buf); - break; - case DT_Score: - buf = readNum(&score, buf); - break; - case DT_BestMatch: - buf = readNum(&bestMatch, buf); - break; - case DT_DocumentLength: - buf = readNum(&docLength, buf); - break; - case DT_Lines: - buf = readNum(&lines, buf); - break; - case DT_TYPE_BLOCK: - { - unsigned long size = -1; - long numTypes = 0; - - buf = readTag(&tag, buf); - readCompressedInteger(&size, buf); - while (size > 0) { - char *type = NULL; - char *originalBuf = buf; - - buf = readString(&type, buf); - types = S_REALLOC2(char *, types, numTypes); - - types[numTypes++] = type; - types[numTypes] = NULL; - size -= (buf - originalBuf); - } - } - /* FALLTHRU */ - case DT_Source: - buf = readString(&source, buf); - break; - case DT_Date: - buf = readString(&date, buf); - break; - case DT_Headline: - buf = readString(&headline, buf); - break; - case DT_OriginCity: - buf = readString(&originCity, buf); - break; - case DT_StockCodes: - buf = readString(&stockCodes, buf); - break; - case DT_CompanyCodes: - buf = readString(&companyCodes, buf); - break; - case DT_IndustryCodes: - buf = readString(&industryCodes, buf); - break; - default: - freeAny(docID); - s_free(source); - s_free(date); - s_free(headline); - s_free(originCity); - s_free(stockCodes); - s_free(companyCodes); - s_free(industryCodes); - REPORT_READ_ERROR(buf); - break; - } - } - - *header = makeWAISDocumentLongHeader(docID, - versionNumber, - score, - bestMatch, - docLength, - lines, - types, - source, - date, - headline, - originCity, - stockCodes, - companyCodes, - industryCodes); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISSearchResponse * - makeWAISSearchResponse( - char *seedWordsUsed, - WAISDocumentHeader **docHeaders, - WAISDocumentShortHeader **shortHeaders, - WAISDocumentLongHeader **longHeaders, - WAISDocumentText **text, - WAISDocumentHeadlines **headlines, - WAISDocumentCodes **codes, - diagnosticRecord ** diagnostics) -{ - WAISSearchResponse *response = S_MALLOC(WAISSearchResponse); - - response->SeedWordsUsed = seedWordsUsed; - response->DocHeaders = docHeaders; - response->ShortHeaders = shortHeaders; - response->LongHeaders = longHeaders; - response->Text = text; - response->Headlines = headlines; - response->Codes = codes; - response->Diagnostics = diagnostics; - - return (response); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISSearchResponse(WAISSearchResponse * response) -{ - void *ptr = NULL; - long i; - - s_free(response->SeedWordsUsed); - - if (response->DocHeaders != NULL) - for (i = 0, ptr = (void *) response->DocHeaders[i]; - ptr != NULL; - ptr = (void *) response->DocHeaders[++i]) - freeWAISDocumentHeader((WAISDocumentHeader *) ptr); - s_free(response->DocHeaders); - - if (response->ShortHeaders != NULL) - for (i = 0, ptr = (void *) response->ShortHeaders[i]; - ptr != NULL; - ptr = (void *) response->ShortHeaders[++i]) - freeWAISDocumentShortHeader((WAISDocumentShortHeader *) ptr); - s_free(response->ShortHeaders); - - if (response->LongHeaders != NULL) - for (i = 0, ptr = (void *) response->LongHeaders[i]; - ptr != NULL; - ptr = (void *) response->LongHeaders[++i]) - freeWAISDocumentLongHeader((WAISDocumentLongHeader *) ptr); - s_free(response->LongHeaders); - - if (response->Text != NULL) - for (i = 0, ptr = (void *) response->Text[i]; - ptr != NULL; - ptr = (void *) response->Text[++i]) - freeWAISDocumentText((WAISDocumentText *) ptr); - s_free(response->Text); - - if (response->Headlines != NULL) - for (i = 0, ptr = (void *) response->Headlines[i]; - ptr != NULL; - ptr = (void *) response->Headlines[++i]) - freeWAISDocumentHeadlines((WAISDocumentHeadlines *) ptr); - s_free(response->Headlines); - - if (response->Codes != NULL) - for (i = 0, ptr = (void *) response->Codes[i]; - ptr != NULL; - ptr = (void *) response->Codes[++i]) - freeWAISDocumentCodes((WAISDocumentCodes *) ptr); - s_free(response->Codes); - - if (response->Diagnostics != NULL) - for (i = 0, ptr = (void *) response->Diagnostics[i]; - ptr != NULL; - ptr = (void *) response->Diagnostics[++i]) - freeDiag((diagnosticRecord *) ptr); - s_free(response->Diagnostics); - - s_free(response); -} - -/*----------------------------------------------------------------------*/ - -char *writeSearchResponseInfo(SearchResponseAPDU *query, - char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_UserInformationLength, - DefWAISSearchResponseSize); - char *buf = buffer + header_len; - WAISSearchResponse *info = (WAISSearchResponse *) query->DatabaseDiagnosticRecords; - unsigned long size; - void *header = NULL; - long i; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeString(info->SeedWordsUsed, DT_SeedWordsUsed, buf, len); - - /* write out all the headers */ - if (info->DocHeaders != NULL) { - for (i = 0, header = (void *) info->DocHeaders[i]; - header != NULL; - header = (void *) info->DocHeaders[++i]) - buf = writeWAISDocumentHeader((WAISDocumentHeader *) header, buf, len); - } - - if (info->ShortHeaders != NULL) { - for (i = 0, header = (void *) info->ShortHeaders[i]; - header != NULL; - header = (void *) info->ShortHeaders[++i]) - buf = writeWAISDocumentShortHeader((WAISDocumentShortHeader *) header, - buf, - len); - } - - if (info->LongHeaders != NULL) { - for (i = 0, header = (void *) info->LongHeaders[i]; - header != NULL; - header = (void *) info->LongHeaders[++i]) - buf = writeWAISDocumentLongHeader((WAISDocumentLongHeader *) header, - buf, - len); - } - - if (info->Text != NULL) { - for (i = 0, header = (void *) info->Text[i]; - header != NULL; - header = (void *) info->Text[++i]) - buf = writeWAISDocumentText((WAISDocumentText *) header, buf, len); - } - - if (info->Headlines != NULL) { - for (i = 0, header = (void *) info->Headlines[i]; - header != NULL; - header = (void *) info->Headlines[++i]) - buf = writeWAISDocumentHeadlines((WAISDocumentHeadlines *) header, - buf, - len); - } - - if (info->Codes != NULL) { - for (i = 0, header = (void *) info->Codes[i]; - header != NULL; - header = (void *) info->Codes[++i]) - buf = writeWAISDocumentCodes((WAISDocumentCodes *) header, buf, len); - } - - if (info->Diagnostics != NULL) { - for (i = 0, header = (void *) info->Diagnostics[i]; - header != NULL; - header = (void *) info->Diagnostics[++i]) - buf = writeDiag((diagnosticRecord *) header, buf, len); - } - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_UserInformationLength, - size, - header_len, - buffer, - len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -static void cleanUpWaisSearchResponse(char *buf, - char *seedWordsUsed, - WAISDocumentHeader **docHeaders, - WAISDocumentShortHeader **shortHeaders, - WAISDocumentLongHeader **longHeaders, - WAISDocumentText **text, - WAISDocumentHeadlines **headlines, - WAISDocumentCodes **codes, - diagnosticRecord ** diags) -/* if buf is NULL, we have just gotten a read error, and need to clean up - any state we have built. If not, then everything is going fine, and - we should just hang loose - */ -{ - void *ptr = NULL; - long i; - - if (buf == NULL) { - s_free(seedWordsUsed); - if (docHeaders != NULL) - for (i = 0, ptr = (void *) docHeaders[i]; ptr != NULL; - ptr = (void *) docHeaders[++i]) - freeWAISDocumentHeader((WAISDocumentHeader *) ptr); - s_free(docHeaders); - if (shortHeaders != NULL) - for (i = 0, ptr = (void *) shortHeaders[i]; ptr != NULL; - ptr = (void *) shortHeaders[++i]) - freeWAISDocumentShortHeader((WAISDocumentShortHeader *) ptr); - s_free(shortHeaders); - if (longHeaders != NULL) - for (i = 0, ptr = (void *) longHeaders[i]; ptr != NULL; - ptr = (void *) longHeaders[++i]) - freeWAISDocumentLongHeader((WAISDocumentLongHeader *) ptr); - s_free(longHeaders); - if (text != NULL) - for (i = 0, ptr = (void *) text[i]; - ptr != NULL; - ptr = (void *) text[++i]) - freeWAISDocumentText((WAISDocumentText *) ptr); - s_free(text); - if (headlines != NULL) - for (i = 0, ptr = (void *) headlines[i]; ptr != NULL; - ptr = (void *) headlines[++i]) - freeWAISDocumentHeadlines((WAISDocumentHeadlines *) ptr); - s_free(headlines); - if (codes != NULL) - for (i = 0, ptr = (void *) codes[i]; ptr != NULL; - ptr = (void *) codes[++i]) - freeWAISDocumentCodes((WAISDocumentCodes *) ptr); - s_free(codes); - if (diags != NULL) - for (i = 0, ptr = (void *) diags[i]; ptr != NULL; - ptr = (void *) diags[++i]) - freeDiag((diagnosticRecord *) ptr); - s_free(diags); - } -} - -/*----------------------------------------------------------------------*/ - -char *readSearchResponseInfo(void **info, - char *buffer) -{ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - data_tag tag1; - void *header = NULL; - WAISDocumentHeader **docHeaders = NULL; - WAISDocumentShortHeader **shortHeaders = NULL; - WAISDocumentLongHeader **longHeaders = NULL; - WAISDocumentText **text = NULL; - WAISDocumentHeadlines **headlines = NULL; - WAISDocumentCodes **codes = NULL; - long numDocHeaders, numLongHeaders, numShortHeaders, numText, numHeadlines; - long numCodes; - char *seedWordsUsed = NULL; - diagnosticRecord **diags = NULL; - diagnosticRecord *diag = NULL; - long numDiags = 0; - - numDocHeaders = - numLongHeaders = - numShortHeaders = - numText = - numHeadlines = - numCodes = 0; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_SeedWordsUsed: - buf = readString(&seedWordsUsed, buf); - break; - case DT_DatabaseDiagnosticRecords: - if (diags == NULL) /* create a new diag list */ - { - diags = S_MALLOC2(diagnosticRecord *); - } else { /* grow the diag list */ - diags = S_REALLOC2(diagnosticRecord *, diags, numDiags); - } - buf = readDiag(&diag, buf); - diags[numDiags++] = diag; /* put it in the list */ - diags[numDiags] = NULL; - break; - case DT_DocumentHeaderGroup: - if (docHeaders == NULL) /* create a new header list */ - { - docHeaders = S_MALLOC2(WAISDocumentHeader *); - } else { /* grow the doc list */ - docHeaders = S_REALLOC2(WAISDocumentHeader *, docHeaders, numDocHeaders); - } - buf = readWAISDocumentHeader((WAISDocumentHeader **) &header, buf); - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - RETURN_ON_NULL(buf); - docHeaders[numDocHeaders++] = - (WAISDocumentHeader *) header; /* put it in the list */ - docHeaders[numDocHeaders] = NULL; - break; - case DT_DocumentShortHeaderGroup: - if (shortHeaders == NULL) /* create a new header list */ - { - shortHeaders = S_MALLOC2(WAISDocumentShortHeader *); - } else { /* grow the doc list */ - shortHeaders = S_REALLOC2(WAISDocumentShortHeader *, - shortHeaders, - numShortHeaders); - } - buf = readWAISDocumentShortHeader((WAISDocumentShortHeader **) &header, - buf); - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - RETURN_ON_NULL(buf); - shortHeaders[numShortHeaders++] = - (WAISDocumentShortHeader *) header; /* put it in the list */ - shortHeaders[numShortHeaders] = NULL; - break; - case DT_DocumentLongHeaderGroup: - if (longHeaders == NULL) /* create a new header list */ - { - longHeaders = S_MALLOC2(WAISDocumentLongHeader *); - } else { /* grow the doc list */ - longHeaders = S_REALLOC2(WAISDocumentLongHeader *, - longHeaders, - numLongHeaders); - } - buf = readWAISDocumentLongHeader((WAISDocumentLongHeader **) &header, - buf); - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - RETURN_ON_NULL(buf); - longHeaders[numLongHeaders++] = - (WAISDocumentLongHeader *) header; /* put it in the list */ - longHeaders[numLongHeaders] = NULL; - break; - case DT_DocumentTextGroup: - if (text == NULL) /* create a new list */ - { - text = S_MALLOC2(WAISDocumentText *); - } else { /* grow the list */ - text = S_REALLOC2(WAISDocumentText *, text, numText); - } - buf = readWAISDocumentText((WAISDocumentText **) &header, buf); - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - RETURN_ON_NULL(buf); - text[numText++] = - (WAISDocumentText *) header; /* put it in the list */ - text[numText] = NULL; - break; - case DT_DocumentHeadlineGroup: - if (headlines == NULL) /* create a new list */ - { - headlines = S_MALLOC2(WAISDocumentHeadlines *); - } else { /* grow the list */ - headlines = S_REALLOC2(WAISDocumentHeadlines *, headlines, numHeadlines); - } - buf = readWAISDocumentHeadlines((WAISDocumentHeadlines **) &header, - buf); - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - RETURN_ON_NULL(buf); - headlines[numHeadlines++] = - (WAISDocumentHeadlines *) header; /* put it in the list */ - headlines[numHeadlines] = NULL; - break; - case DT_DocumentCodeGroup: - if (codes == NULL) /* create a new list */ - { - codes = S_MALLOC2(WAISDocumentCodes *); - } else { /* grow the list */ - codes = S_REALLOC2(WAISDocumentCodes *, codes, numCodes); - } - buf = readWAISDocumentCodes((WAISDocumentCodes **) &header, buf); - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - RETURN_ON_NULL(buf); - codes[numCodes++] = - (WAISDocumentCodes *) header; /* put it in the list */ - codes[numCodes] = NULL; - break; - default: - cleanUpWaisSearchResponse(buf, - seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - REPORT_READ_ERROR(buf); - break; - } - } - - *info = (void *) makeWAISSearchResponse(seedWordsUsed, - docHeaders, - shortHeaders, - longHeaders, - text, - headlines, - codes, - diags); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISDocumentText *makeWAISDocumentText(any *docID, - long versionNumber, - any *documentText) -{ - WAISDocumentText *docText = S_MALLOC(WAISDocumentText); - - docText->DocumentID = docID; - docText->VersionNumber = versionNumber; - docText->DocumentText = documentText; - - return (docText); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISDocumentText(WAISDocumentText *docText) -{ - freeAny(docText->DocumentID); - freeAny(docText->DocumentText); - s_free(docText); -} - -/*----------------------------------------------------------------------*/ - -char *writeWAISDocumentText(WAISDocumentText *docText, char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_DocumentTextGroup, - DefWAISDocTextSize); - char *buf = buffer + header_len; - unsigned long size; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeAny(docText->DocumentID, DT_DocumentID, buf, len); - buf = writeNum(docText->VersionNumber, DT_VersionNumber, buf, len); - buf = writeAny(docText->DocumentText, DT_DocumentText, buf, len); - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_DocumentTextGroup, size, header_len, buffer, len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readWAISDocumentText(WAISDocumentText **docText, char *buffer) -{ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - data_tag tag1; - any *docID, *documentText; - long versionNumber; - - docID = documentText = NULL; - versionNumber = UNUSED; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_DocumentID: - buf = readAny(&docID, buf); - break; - case DT_VersionNumber: - buf = readNum(&versionNumber, buf); - break; - case DT_DocumentText: - buf = readAny(&documentText, buf); - break; - default: - freeAny(docID); - freeAny(documentText); - REPORT_READ_ERROR(buf); - break; - } - } - - *docText = makeWAISDocumentText(docID, versionNumber, documentText); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISDocumentHeadlines *makeWAISDocumentHeadlines(any *docID, - long versionNumber, - char *source, - char *date, - char *headline, - char *originCity) -{ - WAISDocumentHeadlines *docHeadline = S_MALLOC(WAISDocumentHeadlines); - - docHeadline->DocumentID = docID; - docHeadline->VersionNumber = versionNumber; - docHeadline->Source = source; - docHeadline->Date = date; - docHeadline->Headline = headline; - docHeadline->OriginCity = originCity; - - return (docHeadline); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISDocumentHeadlines(WAISDocumentHeadlines *docHeadline) -{ - freeAny(docHeadline->DocumentID); - s_free(docHeadline->Source); - s_free(docHeadline->Date); - s_free(docHeadline->Headline); - s_free(docHeadline->OriginCity); - s_free(docHeadline); -} - -/*----------------------------------------------------------------------*/ - -char *writeWAISDocumentHeadlines(WAISDocumentHeadlines *docHeadline, char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_DocumentHeadlineGroup, - DefWAISDocHeadlineSize); - char *buf = buffer + header_len; - unsigned long size; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeAny(docHeadline->DocumentID, DT_DocumentID, buf, len); - buf = writeNum(docHeadline->VersionNumber, DT_VersionNumber, buf, len); - buf = writeString(docHeadline->Source, DT_Source, buf, len); - buf = writeString(docHeadline->Date, DT_Date, buf, len); - buf = writeString(docHeadline->Headline, DT_Headline, buf, len); - buf = writeString(docHeadline->OriginCity, DT_OriginCity, buf, len); - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_DocumentHeadlineGroup, - size, - header_len, - buffer, - len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readWAISDocumentHeadlines(WAISDocumentHeadlines **docHeadline, char *buffer) -{ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - data_tag tag1; - any *docID; - long versionNumber; - char *source, *date, *headline, *originCity; - - docID = NULL; - versionNumber = UNUSED; - source = date = headline = originCity = NULL; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_DocumentID: - buf = readAny(&docID, buf); - break; - case DT_VersionNumber: - buf = readNum(&versionNumber, buf); - break; - case DT_Source: - buf = readString(&source, buf); - break; - case DT_Date: - buf = readString(&date, buf); - break; - case DT_Headline: - buf = readString(&headline, buf); - break; - case DT_OriginCity: - buf = readString(&originCity, buf); - break; - default: - freeAny(docID); - s_free(source); - s_free(date); - s_free(headline); - s_free(originCity); - REPORT_READ_ERROR(buf); - break; - } - } - - *docHeadline = makeWAISDocumentHeadlines(docID, versionNumber, source, date, - headline, originCity); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -WAISDocumentCodes *makeWAISDocumentCodes(any *docID, - long versionNumber, - char *stockCodes, - char *companyCodes, - char *industryCodes) -{ - WAISDocumentCodes *docCodes = S_MALLOC(WAISDocumentCodes); - - docCodes->DocumentID = docID; - docCodes->VersionNumber = versionNumber; - docCodes->StockCodes = stockCodes; - docCodes->CompanyCodes = companyCodes; - docCodes->IndustryCodes = industryCodes; - - return (docCodes); -} - -/*----------------------------------------------------------------------*/ - -void freeWAISDocumentCodes(WAISDocumentCodes *docCodes) -{ - freeAny(docCodes->DocumentID); - s_free(docCodes->StockCodes); - s_free(docCodes->CompanyCodes); - s_free(docCodes->IndustryCodes); - s_free(docCodes); -} - -/*----------------------------------------------------------------------*/ - -char *writeWAISDocumentCodes(WAISDocumentCodes *docCodes, - char *buffer, - long *len) -{ - unsigned long header_len = userInfoTagSize(DT_DocumentCodeGroup, - DefWAISDocCodeSize); - char *buf = buffer + header_len; - unsigned long size; - - RESERVE_SPACE_FOR_WAIS_HEADER(len); - - buf = writeAny(docCodes->DocumentID, DT_DocumentID, buf, len); - buf = writeNum(docCodes->VersionNumber, DT_VersionNumber, buf, len); - buf = writeString(docCodes->StockCodes, DT_StockCodes, buf, len); - buf = writeString(docCodes->CompanyCodes, DT_CompanyCodes, buf, len); - buf = writeString(docCodes->IndustryCodes, DT_IndustryCodes, buf, len); - - /* now write the header and size */ - size = buf - buffer; - buf = writeUserInfoHeader(DT_DocumentCodeGroup, size, header_len, buffer, len); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *readWAISDocumentCodes(WAISDocumentCodes **docCodes, - char *buffer) -{ - char *buf = buffer; - unsigned long size; - unsigned long headerSize; - data_tag tag1; - any *docID; - long versionNumber; - char *stockCodes, *companyCodes, *industryCodes; - - docID = NULL; - versionNumber = UNUSED; - stockCodes = companyCodes = industryCodes = NULL; - - buf = readUserInfoHeader(&tag1, &size, buf); - headerSize = buf - buffer; - - while (buf < (buffer + size + headerSize)) { - data_tag tag = peekTag(buf); - - switch (tag) { - case DT_DocumentID: - buf = readAny(&docID, buf); - break; - case DT_VersionNumber: - buf = readNum(&versionNumber, buf); - break; - case DT_StockCodes: - buf = readString(&stockCodes, buf); - break; - case DT_CompanyCodes: - buf = readString(&companyCodes, buf); - break; - case DT_IndustryCodes: - buf = readString(&industryCodes, buf); - break; - default: - freeAny(docID); - s_free(stockCodes); - s_free(companyCodes); - s_free(industryCodes); - REPORT_READ_ERROR(buf); - break; - } - } - - *docCodes = makeWAISDocumentCodes(docID, versionNumber, stockCodes, - companyCodes, industryCodes); - return (buf); -} - -/*----------------------------------------------------------------------*/ - -char *writePresentInfo(PresentAPDU * present GCC_UNUSED, char *buffer, - long *len GCC_UNUSED) -{ - /* The WAIS protocol doesn't use present info */ - return (buffer); -} - -/*----------------------------------------------------------------------*/ - -char *readPresentInfo(void **info, - char *buffer) -{ - /* The WAIS protocol doesn't use present info */ - *info = NULL; - return (buffer); -} - -/*----------------------------------------------------------------------*/ - -char *writePresentResponseInfo(PresentResponseAPDU * response GCC_UNUSED, char *buffer, - long *len GCC_UNUSED) -{ - /* The WAIS protocol doesn't use presentResponse info */ - return (buffer); -} - -/*----------------------------------------------------------------------*/ - -char *readPresentResponseInfo(void **info, - char *buffer) -{ - /* The WAIS protocol doesn't use presentResponse info */ - *info = NULL; - return (buffer); -} - -/*----------------------------------------------------------------------*/ - -/* support for type 1 queries */ - -/* new use values (for the chunk types) */ -#define BYTE "wb" -#define LINE "wl" -#define PARAGRAPH "wp" -#define DATA_TYPE "wt" - -/* WAIS supports the following semantics for type 1 queries: - - 1. retrieve the header/codes from a document: - - System_Control_Number = docID - Data Type = type (optional) - And - - 2. retrieve a fragment of the text of a document: - - System_Control_Number = docID - Data Type = type (optional) - And - Chunk >= start - And - Chunk < end - And - - Information from multiple documents may be requested by using - groups of the above joined by: - - OR - - ( XXX does an OR come after every group but the first, or do they - all come at the end? ) - - ( XXX return type could be in the element set) -*/ - -static query_term **makeWAISQueryTerms(DocObj **docs) -/* given a null terminated list of docObjs, construct the appropriate - query of the form given above - */ -{ - query_term **terms = NULL; - long numTerms = 0; - DocObj *doc = NULL; - long i; - - if (docs == NULL) - return ((query_term **) NULL); - - terms = (query_term **) s_malloc((size_t) (sizeof(query_term *) * 1)); - - terms[numTerms] = NULL; - - /* loop through the docs making terms for them all */ - for (i = 0, doc = docs[i]; doc != NULL; doc = docs[++i]) { - any *type = NULL; - - if (doc->Type != NULL) - type = stringToAny(doc->Type); - - if (doc->ChunkCode == CT_document) /* a whole document */ - { - terms = S_REALLOC2(query_term *, terms, numTerms + 2); - - terms[numTerms++] = makeAttributeTerm(SYSTEM_CONTROL_NUMBER, - EQUAL, IGNORE, IGNORE, - IGNORE, IGNORE, doc->DocumentID); - if (type != NULL) { - terms[numTerms++] = makeAttributeTerm(DATA_TYPE, EQUAL, - IGNORE, IGNORE, IGNORE, - IGNORE, type); - terms[numTerms++] = makeOperatorTerm(AND); - } - terms[numTerms] = NULL; - } else { /* a document fragment */ - char chunk_att[ATTRIBUTE_SIZE]; - any *startChunk = NULL; - any *endChunk = NULL; - - terms = S_REALLOC2(query_term *, terms, numTerms + 6); - - switch (doc->ChunkCode) { - case CT_byte: - case CT_line: - { - char start[20], end[20]; - - (doc->ChunkCode == CT_byte) ? - strncpy(chunk_att, BYTE, ATTRIBUTE_SIZE) : - strncpy(chunk_att, LINE, ATTRIBUTE_SIZE); - sprintf(start, "%ld", doc->ChunkStart.Pos); - startChunk = stringToAny(start); - sprintf(end, "%ld", doc->ChunkEnd.Pos); - endChunk = stringToAny(end); - } - break; - case CT_paragraph: - strncpy(chunk_att, PARAGRAPH, ATTRIBUTE_SIZE); - startChunk = doc->ChunkStart.ID; - endChunk = doc->ChunkEnd.ID; - break; - default: - /* error */ - break; - } - - terms[numTerms++] = makeAttributeTerm(SYSTEM_CONTROL_NUMBER, - EQUAL, IGNORE, IGNORE, - IGNORE, - IGNORE, doc->DocumentID); - if (type != NULL) { - terms[numTerms++] = makeAttributeTerm(DATA_TYPE, EQUAL, IGNORE, - IGNORE, IGNORE, IGNORE, - type); - terms[numTerms++] = makeOperatorTerm(AND); - } - terms[numTerms++] = makeAttributeTerm(chunk_att, - GREATER_THAN_OR_EQUAL, - IGNORE, IGNORE, IGNORE, - IGNORE, - startChunk); - terms[numTerms++] = makeOperatorTerm(AND); - terms[numTerms++] = makeAttributeTerm(chunk_att, LESS_THAN, - IGNORE, IGNORE, IGNORE, - IGNORE, - endChunk); - terms[numTerms++] = makeOperatorTerm(AND); - terms[numTerms] = NULL; - - if (doc->ChunkCode == CT_byte || doc->ChunkCode == CT_line) { - freeAny(startChunk); - freeAny(endChunk); - } - } - - freeAny(type); - - if (i != 0) /* multiple independent queries, need a disjunction */ - { - terms = S_REALLOC2(query_term *, terms, numTerms); - - terms[numTerms++] = makeOperatorTerm(OR); - terms[numTerms] = NULL; - } - } - - return (terms); -} - -/*----------------------------------------------------------------------*/ - -static DocObj **makeWAISQueryDocs(query_term **terms) -/* given a list of terms in the form given above, convert them to - DocObjs. - */ -{ - query_term *docTerm = NULL; - query_term *fragmentTerm = NULL; - DocObj **docs = NULL; - DocObj *doc = NULL; - long docNum, termNum; - - docNum = termNum = 0; - - docs = S_MALLOC(DocObj *); - - docs[docNum] = NULL; - - /* translate the terms into DocObjs */ - while (true) { - query_term *typeTerm = NULL; - char *type = NULL; - long startTermOffset; - - docTerm = terms[termNum]; - - if (docTerm == NULL) - break; /* we're done converting */ - - typeTerm = terms[termNum + 1]; /* get the lead Term if it exists */ - - if (strcmp(typeTerm->Use, DATA_TYPE) == 0) /* we do have a type */ - { - startTermOffset = 3; - type = anyToString(typeTerm->Term); - } else { /* no type */ - startTermOffset = 1; - typeTerm = NULL; - type = NULL; - } - - /* grow the doc list */ - docs = S_REALLOC2(DocObj *, docs, docNum); - - /* figure out what kind of docObj to build - and build it */ - fragmentTerm = terms[termNum + startTermOffset]; - if (fragmentTerm != NULL && fragmentTerm->TermType == TT_Attribute) { /* build a document fragment */ - query_term *startTerm = fragmentTerm; - query_term *endTerm = terms[termNum + startTermOffset + 2]; - - if (strcmp(startTerm->Use, BYTE) == 0) { /* a byte chunk */ - doc = makeDocObjUsingBytes(duplicateAny(docTerm->Term), - type, - anyToLong(startTerm->Term), - anyToLong(endTerm->Term)); - log_write("byte"); - } else if (strcmp(startTerm->Use, LINE) == 0) { /* a line chunk */ - doc = makeDocObjUsingLines(duplicateAny(docTerm->Term), - type, - anyToLong(startTerm->Term), - anyToLong(endTerm->Term)); - log_write("line"); - } else { - log_write("chunk"); /* a paragraph chunk */ - doc = makeDocObjUsingParagraphs(duplicateAny(docTerm->Term), - type, - duplicateAny(startTerm->Term), - duplicateAny(endTerm->Term)); - } - termNum += (startTermOffset + 4); /* point to next term */ - } else { /* build a full document */ - doc = makeDocObjUsingWholeDocument(duplicateAny(docTerm->Term), - type); - log_write("whole doc"); - termNum += startTermOffset; /* point to next term */ - } - - docs[docNum++] = doc; /* insert the new document */ - - docs[docNum] = NULL; /* keep the doc list terminated */ - - if (terms[termNum] != NULL) - termNum++; /* skip the OR operator it necessary */ - else - break; /* we are done */ - } - - return (docs); -} - -/*----------------------------------------------------------------------*/ - -any *makeWAISTextQuery(DocObj **docs) -/* given a list of DocObjs, return an any whose contents is the corresponding - type 1 query - */ -{ - any *buf = NULL; - query_term **terms = NULL; - - terms = makeWAISQueryTerms(docs); - buf = writeQuery(terms); - - doList((void **) terms, freeTerm); - s_free(terms); - - return (buf); -} - -/*----------------------------------------------------------------------*/ - -DocObj **readWAISTextQuery(any *buf) -/* given an any whose contents are type 1 queries of the WAIS sort, - construct a list of the corresponding DocObjs - */ -{ - query_term **terms = NULL; - DocObj **docs = NULL; - - terms = readQuery(buf); - docs = makeWAISQueryDocs(terms); - - doList((void **) terms, freeTerm); - s_free(terms); - - return (docs); -} - -/*----------------------------------------------------------------------*/ -/* Customized free WAIS object routines: */ -/* */ -/* This set of procedures is for applications to free a WAIS object */ -/* which was made with makeWAISFOO. */ -/* Each procedure frees only the memory that was allocated in its */ -/* associated makeWAISFOO routine, thus it's not necessary for the */ -/* caller to assign nulls to the pointer fields of the WAIS object. */ -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISInitResponse(WAISInitResponse *init) -/* free an object made with makeWAISInitResponse */ -{ - s_free(init); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISSearch(WAISSearch *query) -/* destroy an object made with makeWAISSearch() */ -{ - s_free(query); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeDocObj(DocObj *doc) -/* free a docObj */ -{ - s_free(doc); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISDocumentHeader(WAISDocumentHeader *header) -{ - s_free(header); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISDocumentShortHeader(WAISDocumentShortHeader *header) -{ - s_free(header); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISDocumentLongHeader(WAISDocumentLongHeader *header) -{ - s_free(header); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISSearchResponse(WAISSearchResponse * response) -{ - s_free(response); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISDocumentText(WAISDocumentText *docText) -{ - s_free(docText); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISDocHeadlines(WAISDocumentHeadlines *docHeadline) -{ - s_free(docHeadline); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISDocumentCodes(WAISDocumentCodes *docCodes) -{ - s_free(docCodes); -} - -/*----------------------------------------------------------------------*/ - -void CSTFreeWAISTextQuery(any *query) -{ - freeAny(query); -} - -/*----------------------------------------------------------------------*/ - -/* - * Routines originally from WMessage.c -- FM - * - *----------------------------------------------------------------------*/ -/* WIDE AREA INFORMATION SERVER SOFTWARE - * No guarantees or restrictions. See the readme file for the full standard - * disclaimer. - * 3.26.90 - */ - -/* This file is for reading and writing the wais packet header. - * Morris@think.com - */ - -/* to do: - * add check sum - * what do you do when checksum is wrong? - */ - -/*---------------------------------------------------------------------*/ - -void readWAISPacketHeader(char *msgBuffer, - WAISMessage * header_struct) -{ - /* msgBuffer is a string containing at least HEADER_LENGTH bytes. */ - - memmove(header_struct->msg_len, msgBuffer, (size_t) 10); - header_struct->msg_type = char_downcase((unsigned long) msgBuffer[10]); - header_struct->hdr_vers = char_downcase((unsigned long) msgBuffer[11]); - memmove(header_struct->server, (void *) (msgBuffer + 12), (size_t) 10); - header_struct->compression = char_downcase((unsigned long) msgBuffer[22]); - header_struct->encoding = char_downcase((unsigned long) msgBuffer[23]); - header_struct->msg_checksum = char_downcase((unsigned long) msgBuffer[24]); -} - -/*---------------------------------------------------------------------*/ - -/* this modifies the header argument. See wais-message.h for the different - * options for the arguments. - */ - -void writeWAISPacketHeader(char *header, - long dataLen, - long type, - char *server, - long compression, - long encoding, - long version) -/* Puts together the new wais before-the-z39-packet header. */ -{ - char lengthBuf[11]; - char serverBuf[11]; - - long serverLen = strlen(server); - - if (serverLen > 10) - serverLen = 10; - - sprintf(lengthBuf, "%010ld", dataLen); - strncpy(header, lengthBuf, 10); - - header[10] = type & 0xFF; - header[11] = version & 0xFF; - - strncpy(serverBuf, server, serverLen); - strncpy((char *) (header + 12), serverBuf, serverLen); - - header[22] = compression & 0xFF; - header[23] = encoding & 0xFF; - header[24] = '0'; /* checkSum(header + HEADER_LENGTH,dataLen); XXX the result must be ascii */ -} - -/*---------------------------------------------------------------------*/ |