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/*
* Copyright (c) 2007, Novell Inc.
*
* This program is licensed under the BSD license, read LICENSE.BSD
* for further information
*/
#define DO_ARRAY 1
#define _GNU_SOURCE
#include <sys/types.h>
#include <limits.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <expat.h>
#include "pool.h"
#include "repo.h"
#include "chksum.h"
#include "repo_deltainfoxml.h"
/*
* <deltainfo>
* <newpackage name="libtool" epoch="0" version="1.5.24" release="6.fc9" arch="i386">
* <delta oldepoch="0" oldversion="1.5.24" oldrelease="3.fc8">
* <filename>DRPMS/libtool-1.5.24-3.fc8_1.5.24-6.fc9.i386.drpm</filename>
* <sequence>libtool-1.5.24-3.fc8-d3571f98b048b1a870e40241bb46c67ab4</sequence>
* <size>22452</size>
* <checksum type="sha">8f05394695dee9399c204614e21e5f6848990ab7</checksum>
* </delta>
* <delta oldepoch="0" oldversion="1.5.22" oldrelease="11.fc7">
* <filename>DRPMS/libtool-1.5.22-11.fc7_1.5.24-6.fc9.i386.drpm</filename>
* <sequence>libtool-1.5.22-11.fc7-e82691677eee1e83b4812572c5c9ce8eb</sequence>
* <size>110362</size>
* <checksum type="sha">326658fee45c0baec1e70231046dbaf560f941ce</checksum>
* </delta>
* </newpackage>
* </deltainfo>
*/
enum state {
STATE_START,
STATE_NEWPACKAGE, /* 1 */
STATE_DELTA, /* 2 */
STATE_FILENAME, /* 3 */
STATE_SEQUENCE, /* 4 */
STATE_SIZE, /* 5 */
STATE_CHECKSUM, /* 6 */
STATE_LOCATION, /* 7 */
NUMSTATES
};
struct stateswitch {
enum state from;
char *ename;
enum state to;
int docontent;
};
/* !! must be sorted by first column !! */
static struct stateswitch stateswitches[] = {
/* compatibility with old yum-presto */
{ STATE_START, "prestodelta", STATE_START, 0 },
{ STATE_START, "deltainfo", STATE_START, 0 },
{ STATE_START, "newpackage", STATE_NEWPACKAGE, 0 },
{ STATE_NEWPACKAGE, "delta", STATE_DELTA, 0 },
/* compatibility with yum-presto */
{ STATE_DELTA, "filename", STATE_FILENAME, 1 },
{ STATE_DELTA, "location", STATE_LOCATION, 0 },
{ STATE_DELTA, "sequence", STATE_SEQUENCE, 1 },
{ STATE_DELTA, "size", STATE_SIZE, 1 },
{ STATE_DELTA, "checksum", STATE_CHECKSUM, 1 },
{ NUMSTATES }
};
/* Cumulated info about the current deltarpm or patchrpm */
struct deltarpm {
Id locdir;
Id locname;
Id locevr;
Id locsuffix;
unsigned int buildtime;
unsigned long long downloadsize;
char *filechecksum;
int filechecksumtype;
/* Baseversion. deltarpm only has one. */
Id *bevr;
unsigned nbevr;
Id seqname;
Id seqevr;
char *seqnum;
};
struct parsedata {
int ret;
int depth;
enum state state;
int statedepth;
char *content;
int lcontent;
int acontent;
int docontent;
Pool *pool;
Repo *repo;
Repodata *data;
struct stateswitch *swtab[NUMSTATES];
enum state sbtab[NUMSTATES];
struct deltarpm delta;
Id newpkgevr;
Id newpkgname;
Id newpkgarch;
Id *handles;
int nhandles;
};
/*
* find attribute
*/
static const char *
find_attr(const char *txt, const char **atts)
{
for (; *atts; atts += 2)
{
if (!strcmp(*atts, txt))
return atts[1];
}
return 0;
}
/*
* create evr (as Id) from 'epoch', 'version' and 'release' attributes
*/
static Id
makeevr_atts(Pool *pool, struct parsedata *pd, const char **atts)
{
const char *e, *v, *r, *v2;
char *c;
int l;
e = v = r = 0;
for (; *atts; atts += 2)
{
if (!strcmp(*atts, "oldepoch"))
e = atts[1];
else if (!strcmp(*atts, "epoch"))
e = atts[1];
else if (!strcmp(*atts, "version"))
v = atts[1];
else if (!strcmp(*atts, "oldversion"))
v = atts[1];
else if (!strcmp(*atts, "release"))
r = atts[1];
else if (!strcmp(*atts, "oldrelease"))
r = atts[1];
}
if (e && !strcmp(e, "0"))
e = 0;
if (v && !e)
{
for (v2 = v; *v2 >= '0' && *v2 <= '9'; v2++)
;
if (v2 > v && *v2 == ':')
e = "0";
}
l = 1;
if (e)
l += strlen(e) + 1;
if (v)
l += strlen(v);
if (r)
l += strlen(r) + 1;
if (l > pd->acontent)
{
pd->content = solv_realloc(pd->content, l + 256);
pd->acontent = l + 256;
}
c = pd->content;
if (e)
{
strcpy(c, e);
c += strlen(c);
*c++ = ':';
}
if (v)
{
strcpy(c, v);
c += strlen(c);
}
if (r)
{
*c++ = '-';
strcpy(c, r);
c += strlen(c);
}
*c = 0;
if (!*pd->content)
return 0;
#if 0
fprintf(stderr, "evr: %s\n", pd->content);
#endif
return pool_str2id(pool, pd->content, 1);
}
static void
parse_delta_location(struct parsedata *pd, const char* str)
{
Pool *pool = pd->pool;
if (str)
{
/* Separate the filename into its different parts.
rpm/x86_64/alsa-1.0.14-31_31.2.x86_64.delta.rpm
--> dir = rpm/x86_64
name = alsa
evr = 1.0.14-31_31.2
suffix = x86_64.delta.rpm. */
char *real_str = solv_strdup(str);
char *s = real_str;
char *s1, *s2;
s1 = strrchr (s, '/');
if (s1)
{
pd->delta.locdir = pool_strn2id(pool, s, s1 - s, 1);
s = s1 + 1;
}
/* Guess suffix. */
s1 = strrchr (s, '.');
if (s1)
{
for (s2 = s1 - 1; s2 > s; s2--)
if (*s2 == '.')
break;
if (!strcmp (s2, ".delta.rpm") || !strcmp (s2, ".patch.rpm"))
{
s1 = s2;
/* We accept one more item as suffix. */
for (s2 = s1 - 1; s2 > s; s2--)
if (*s2 == '.')
break;
s1 = s2;
}
if (*s1 == '.')
*s1++ = 0;
pd->delta.locsuffix = pool_str2id(pool, s1, 1);
}
/* Last '-'. */
s1 = strrchr (s, '-');
if (s1)
{
/* Second to last '-'. */
for (s2 = s1 - 1; s2 > s; s2--)
if (*s2 == '-')
break;
}
else
s2 = 0;
if (s2 > s && *s2 == '-')
{
*s2++ = 0;
pd->delta.locevr = pool_str2id(pool, s2, 1);
}
pd->delta.locname = pool_str2id(pool, s, 1);
free(real_str);
}
}
static void XMLCALL
startElement(void *userData, const char *name, const char **atts)
{
struct parsedata *pd = userData;
Pool *pool = pd->pool;
struct stateswitch *sw;
const char *str;
#if 0
fprintf(stderr, "start: [%d]%s\n", pd->state, name);
#endif
if (pd->depth != pd->statedepth)
{
pd->depth++;
return;
}
pd->depth++;
if (!pd->swtab[pd->state])
return;
for (sw = pd->swtab[pd->state]; sw->from == pd->state; sw++) /* find name in statetable */
if (!strcmp(sw->ename, name))
break;
if (sw->from != pd->state)
{
#if 0
fprintf(stderr, "into unknown: [%d]%s (from: %d)\n", sw->to, name, sw->from);
#endif
return;
}
pd->state = sw->to;
pd->docontent = sw->docontent;
pd->statedepth = pd->depth;
pd->lcontent = 0;
*pd->content = 0;
switch(pd->state)
{
case STATE_START:
break;
case STATE_NEWPACKAGE:
if ((str = find_attr("name", atts)) != 0)
pd->newpkgname = pool_str2id(pool, str, 1);
pd->newpkgevr = makeevr_atts(pool, pd, atts);
if ((str = find_attr("arch", atts)) != 0)
pd->newpkgarch = pool_str2id(pool, str, 1);
break;
case STATE_DELTA:
memset(&pd->delta, 0, sizeof(pd->delta));
pd->delta.bevr = solv_extend(pd->delta.bevr, pd->delta.nbevr, 1, sizeof(Id), 7);
pd->delta.bevr[pd->delta.nbevr++] = makeevr_atts(pool, pd, atts);
break;
case STATE_FILENAME:
break;
case STATE_LOCATION:
parse_delta_location(pd, find_attr("href", atts));
break;
case STATE_SIZE:
break;
case STATE_CHECKSUM:
pd->delta.filechecksum = 0;
pd->delta.filechecksumtype = REPOKEY_TYPE_SHA1;
if ((str = find_attr("type", atts)) != 0)
{
pd->delta.filechecksumtype = solv_chksum_str2type(str);
if (!pd->delta.filechecksumtype)
pool_debug(pool, SOLV_ERROR, "unknown checksum type: '%s'\n", str);
}
break;
case STATE_SEQUENCE:
break;
default:
break;
}
}
static void XMLCALL
endElement(void *userData, const char *name)
{
struct parsedata *pd = userData;
Pool *pool = pd->pool;
const char *str;
#if 0
fprintf(stderr, "end: %s\n", name);
#endif
if (pd->depth != pd->statedepth)
{
pd->depth--;
#if 0
fprintf(stderr, "back from unknown %d %d %d\n", pd->state, pd->depth, pd->statedepth);
#endif
return;
}
pd->depth--;
pd->statedepth--;
switch (pd->state)
{
case STATE_START:
break;
case STATE_NEWPACKAGE:
break;
case STATE_DELTA:
{
/* read all data for a deltarpm. commit into attributes */
Id handle;
struct deltarpm *d = &pd->delta;
handle = repodata_new_handle(pd->data);
/* we commit all handles later on in one go so that the
* repodata code doesn't need to realloc every time */
pd->handles = solv_extend(pd->handles, pd->nhandles, 1, sizeof(Id), 63);
pd->handles[pd->nhandles++] = handle;
repodata_set_id(pd->data, handle, DELTA_PACKAGE_NAME, pd->newpkgname);
repodata_set_id(pd->data, handle, DELTA_PACKAGE_EVR, pd->newpkgevr);
repodata_set_id(pd->data, handle, DELTA_PACKAGE_ARCH, pd->newpkgarch);
repodata_set_id(pd->data, handle, DELTA_LOCATION_NAME, d->locname);
repodata_set_id(pd->data, handle, DELTA_LOCATION_DIR, d->locdir);
repodata_set_id(pd->data, handle, DELTA_LOCATION_EVR, d->locevr);
repodata_set_id(pd->data, handle, DELTA_LOCATION_SUFFIX, d->locsuffix);
if (d->downloadsize)
repodata_set_num(pd->data, handle, DELTA_DOWNLOADSIZE, d->downloadsize);
if (d->filechecksum)
repodata_set_checksum(pd->data, handle, DELTA_CHECKSUM, d->filechecksumtype, d->filechecksum);
if (d->seqnum)
{
repodata_set_id(pd->data, handle, DELTA_BASE_EVR, d->bevr[0]);
repodata_set_id(pd->data, handle, DELTA_SEQ_NAME, d->seqname);
repodata_set_id(pd->data, handle, DELTA_SEQ_EVR, d->seqevr);
/* should store as binary blob! */
repodata_set_str(pd->data, handle, DELTA_SEQ_NUM, d->seqnum);
}
}
pd->delta.filechecksum = solv_free(pd->delta.filechecksum);
pd->delta.bevr = solv_free(pd->delta.bevr);
pd->delta.nbevr = 0;
pd->delta.seqnum = solv_free(pd->delta.seqnum);
break;
case STATE_FILENAME:
parse_delta_location(pd, pd->content);
break;
case STATE_CHECKSUM:
pd->delta.filechecksum = solv_strdup(pd->content);
break;
case STATE_SIZE:
pd->delta.downloadsize = strtoull(pd->content, 0, 10);
break;
case STATE_SEQUENCE:
if ((str = pd->content))
{
const char *s1, *s2;
s1 = strrchr(str, '-');
if (s1)
{
for (s2 = s1 - 1; s2 > str; s2--)
if (*s2 == '-')
break;
if (*s2 == '-')
{
for (s2 = s2 - 1; s2 > str; s2--)
if (*s2 == '-')
break;
if (*s2 == '-')
{
pd->delta.seqevr = pool_strn2id(pool, s2 + 1, s1 - s2 - 1, 1);
pd->delta.seqname = pool_strn2id(pool, str, s2 - str, 1);
str = s1 + 1;
}
}
}
pd->delta.seqnum = solv_strdup(str);
}
default:
break;
}
pd->state = pd->sbtab[pd->state];
pd->docontent = 0;
}
static void XMLCALL
characterData(void *userData, const XML_Char *s, int len)
{
struct parsedata *pd = userData;
int l;
char *c;
if (!pd->docontent)
return;
l = pd->lcontent + len + 1;
if (l > pd->acontent)
{
pd->content = solv_realloc(pd->content, l + 256);
pd->acontent = l + 256;
}
c = pd->content + pd->lcontent;
pd->lcontent += len;
while (len-- > 0)
*c++ = *s++;
*c = 0;
}
#define BUFF_SIZE 8192
int
repo_add_deltainfoxml(Repo *repo, FILE *fp, int flags)
{
Pool *pool = repo->pool;
struct parsedata pd;
char buf[BUFF_SIZE];
int i, l;
struct stateswitch *sw;
Repodata *data;
XML_Parser parser;
data = repo_add_repodata(repo, flags);
memset(&pd, 0, sizeof(pd));
for (i = 0, sw = stateswitches; sw->from != NUMSTATES; i++, sw++)
{
if (!pd.swtab[sw->from])
pd.swtab[sw->from] = sw;
pd.sbtab[sw->to] = sw->from;
}
pd.pool = pool;
pd.repo = repo;
pd.data = data;
pd.content = solv_malloc(256);
pd.acontent = 256;
pd.lcontent = 0;
parser = XML_ParserCreate(NULL);
XML_SetUserData(parser, &pd);
XML_SetElementHandler(parser, startElement, endElement);
XML_SetCharacterDataHandler(parser, characterData);
for (;;)
{
l = fread(buf, 1, sizeof(buf), fp);
if (XML_Parse(parser, buf, l, l == 0) == XML_STATUS_ERROR)
{
pd.ret = pool_error(pool, -1, "repo_updateinfoxml: %s at line %u:%u", XML_ErrorString(XML_GetErrorCode(parser)), (unsigned int)XML_GetCurrentLineNumber(parser), (unsigned int)XML_GetCurrentColumnNumber(parser));
break;
}
if (l == 0)
break;
}
XML_ParserFree(parser);
solv_free(pd.content);
/* now commit all handles */
if (!pd.ret)
for (i = 0; i < pd.nhandles; i++)
repodata_add_flexarray(pd.data, SOLVID_META, REPOSITORY_DELTAINFO, pd.handles[i]);
solv_free(pd.handles);
if (!(flags & REPO_NO_INTERNALIZE))
repodata_internalize(data);
return pd.ret;
}
/* EOF */
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