/* Isolate the "CURL." prefix to allow changing to something else */
static char*
curllookup(char* suffix, char* url)
{
char key[2048];
char* value = NULL;
if(!occopycat(key,sizeof(key),2,HTTPPREFIX,suffix))
return NULL;
value = ocdodsrc_lookup(key,url);
if(value == NULL) {
if(!occopycat(key,sizeof(key),2,HTTPPREFIXDEPRECATED,suffix))
return NULL;
value = ocdodsrc_lookup(key,url);
}
return value;
}
static int
readfile(const char* path, const char* suffix, OCbytes* packet)
{
int stat = OC_NOERR;
char buf[1024];
char filename[1024];
int fd = -1;
int flags = 0;
off_t filesize = 0;
off_t totalread = 0;
/* check for leading file:/// */
if(ocstrncmp(path,"file://",7)==0) path += 7; /* assume absolute path*/
if(!occopycat(filename,sizeof(filename),2,path,(suffix != NULL ? suffix : "")))
return OCTHROW(OC_EOVERRUN);
flags = O_RDONLY;
#ifdef O_BINARY
flags |= O_BINARY;
#endif
fd = open(filename,flags);
if(fd < 0) {
oclog(OCLOGERR,"open failed:%s",filename);
return OCTHROW(OC_EOPEN);
}
/* Get the file size */
filesize = lseek(fd,(off_t)0,SEEK_END);
if(filesize < 0) {
stat = OC_EIO;
oclog(OCLOGERR,"lseek failed: %s",filename);
goto done;
}
/* Move file pointer back to the beginning of the file */
(void)lseek(fd,(off_t)0,SEEK_SET);
stat = OC_NOERR;
for(totalread=0;;) {
off_t count = (off_t)read(fd,buf,sizeof(buf));
if(count == 0)
break; /*eof*/
else if(count < 0) {
stat = OC_EIO;
oclog(OCLOGERR,"read failed: %s",filename);
goto done;
}
ocbytesappendn(packet,buf,(unsigned long)count);
totalread += count;
}
if(totalread < filesize) {
stat = OC_EIO;
oclog(OCLOGERR,"short read: |%s|=%lu read=%lu\n",
filename,(unsigned long)filesize,(unsigned long)totalread);
goto done;
}
done:
#ifdef OCDEBUG
fprintf(stderr,"readfile: filesize=%lu totalread=%lu\n",
(unsigned long)filesize,(unsigned long)totalread);
#endif
if(fd >= 0) close(fd);
return OCTHROW(stat);
}
/*
Set curl properties for link based on rc files
*/
static void
ocsetcurlproperties(OCstate* state)
{
CURLcode cstat = CURLE_OK;
/* process the triple store wrt to this state */
if(ocdodsrc_process(state) != OC_NOERR) {
oclog(OCLOGERR,"Malformed .opendaprc configuration file");
goto fail;
}
if(state->creds.username == NULL && state->creds.password == NULL) {
if(state->uri->user != NULL && state->uri->password != NULL) {
/* this overrides .dodsrc */
if(state->creds.password) free(state->creds.password);
state->creds.password = nulldup(state->uri->password);
if(state->creds.username) free(state->creds.username);
state->creds.username = nulldup(state->uri->user);
}
}
if(state->curlflags.useragent == NULL) {
size_t len = strlen(DFALTUSERAGENT) + strlen(VERSION) + 1;
char* agent = (char*)malloc(len+1);
if(occopycat(agent,len,2,DFALTUSERAGENT,VERSION))
state->curlflags.useragent = agent;
else
free(agent);
}
return;
fail:
if(cstat != CURLE_OK)
oclog(OCLOGERR, "curl error: %s", curl_easy_strerror(cstat));
return;
}
char*
occombinehostport(const OCURI* uri)
{
char* hp;
int len = 0;
if(uri->host == NULL)
return NULL;
else
len += strlen(uri->host);
if(uri->port != NULL)
len += strlen(uri->port);
hp = (char*)malloc(len+1);
if(hp == NULL)
return NULL;
if(uri->port == NULL)
occopycat(hp,len+1,1,uri->host);
else
occopycat(hp,len+1,3,uri->host,":",uri->port);
return hp;
}
int
ocmktmp(const char* base, char** tmpnamep, int* fdp)
{
int fd;
char* tmpname = NULL;
mode_t oldmask;
size_t tmpsize = strlen(base)+strlen("XXXXXX") + 1;
tmpname = (char*)malloc(tmpsize);
if(tmpname == NULL) return OC_ENOMEM;
if(!occopycat(tmpname,tmpsize,1,base)) {
free(tmpname);
return OC_EOVERRUN;
}
#ifdef HAVE_MKSTEMP
if(!occoncat(tmpname,tmpsize,1,"XXXXXX")) {
free(tmpname);
return OC_EOVERRUN;
}
/* Note Potential problem: old versions of this function
leave the file in mode 0666 instead of 0600 */
oldmask= umask(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
fd = mkstemp(tmpname);
umask(oldmask); /* restore */
#else /* !HAVE_MKSTEMP */
/* Need to simulate by using some kind of pseudo-random number */
{
int rno = rand();
char spid[7];
if(rno < 0) rno = -rno;
snprintf(spid,sizeof(spid),"%06d",rno);
if(!occoncat(tmpname,tmpsize,1,spid)) {
free(tmpname);
return OC_EOVERRUN;
}
#if defined(_WIN32) || defined(_WIN64)
fd=open(tmpname,O_RDWR|O_BINARY|O_CREAT|O_EXCL|FILE_ATTRIBUTE_TEMPORARY, _S_IREAD|_S_IWRITE);
# else
fd=open(tmpname,O_RDWR|O_CREAT|O_EXCL, S_IRWXU);
# endif
}
#endif /* !HAVE_MKSTEMP */
if(fd < 0) {
if(tmpname != NULL) free(tmpname);
return OC_EOPEN;
}
if(tmpnamep) *tmpnamep = tmpname;
else if(tmpname != NULL) {free(tmpname);}
if(fdp) *fdp = fd;
else if(fd >= 0) close(fd);
return OC_NOERR;
}
static char*
ocrc_lookup(char* suffix, char* url)
{
char* value = NULL;
char key[MAXRCLINESIZE+1];
const char** p = prefixes;
for(;*p;p++) {
if(!occopycat(key,sizeof(key),2,*p,suffix))
return NULL;
value = ocrc_lookup(key,url);
if(value != NULL)
return value;
}
return value;
}
static char*
combinecredentials(const char* user, const char* pwd)
{
int userPassSize;
char *userPassword;
if(user == NULL) user = "";
if(pwd == NULL) pwd = "";
userPassSize = strlen(user) + strlen(pwd) + 2;
userPassword = malloc(sizeof(char) * userPassSize);
if (!userPassword) {
oclog(OCLOGERR,"Out of Memory\n");
return NULL;
}
occopycat(userPassword,userPassSize-1,3,user,":",pwd);
return userPassword;
}
int
createtempfile1(char* tmppath, char** tmpnamep)
{
int fd = 0;
char* tmpname = NULL;
size_t tmpsize = strlen(tmppath)+strlen("dataddsXXXXXX") + 1;
tmpname = (char*)malloc(tmpsize);
if(tmpname == NULL) return -1;
if(!occopycat(tmpname,tmpsize,1,tmppath))
return OC_EOVERRUN;
#ifdef HAVE_MKSTEMP
if(!occoncat(tmpname,tmpsize,1,"dataddsXXXXXX"))
return OC_EOVERRUN;
/* Note Potential problem: old versions of this function
leave the file in mode 0666 instead of 0600 */
umask(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
fd = mkstemp(tmpname);
#else /* !HAVE_MKSTEMP */
/* Need to simulate by using some kind of pseudo-random number */
if(!occoncat(tmpname,tmpsize,1,"datadds"))
return OC_EOVERRUN;
{
int rno = rand();
char spid[7];
if(rno < 0) rno = -rno;
snprintf(spid,sizeof(spid),"%06d",rno);
if(!occoncat(tmpname,tmpsize,1,spid))
return OC_EOVERRUN;
# ifdef _WIN32
fd=open(tmpname,O_RDWR|O_BINARY|O_CREAT|O_EXCL|FILE_ATTRIBUTE_TEMPORARY, _S_IREAD|_S_IWRITE);
# else
fd=open(tmpname,O_RDWR|O_CREAT|O_EXCL, S_IRWXU);
# endif
}
#endif /* !HAVE_MKSTEMP */
if(tmpname == NULL) return -1;
if(tmpnamep) *tmpnamep = tmpname;
else
free(tmpname);
return fd;
}
static OCerror
createtempfile(OCstate* state, OCtree* tree)
{
int stat = OC_NOERR;
char* path = NULL;
char* name = NULL;
int len;
len =
strlen(ocglobalstate.tempdir)
+ 1 /* '/' */
+ strlen(DATADDSFILE);
path = (char*)malloc(len+1);
if(path == NULL) return OC_ENOMEM;
occopycat(path,len,3,ocglobalstate.tempdir,"/",DATADDSFILE);
stat = ocmktmp(path,&name);
free(path);
if(stat != OC_NOERR) goto fail;
#ifdef OCDEBUG
oclog(OCLOGNOTE,"oc_open: creating tmp file: %s",name);
#endif
tree->data.filename = name; /* remember our tmp file name */
name = NULL;
tree->data.file = fopen(tree->data.filename,"w+");
if(tree->data.file == NULL) return OC_EOPEN;
/* unlink the temp file so it will automatically be reclaimed */
if(ocdebug == 0) unlink(tree->data.filename);
return stat;
fail:
if(name != NULL) {
oclog(OCLOGERR,"oc_open: attempt to create tmp file failed: %s",name);
free(name);
} else {
oclog(OCLOGERR,"oc_open: attempt to create tmp file failed: NULL");
}
return OCTHROW(stat);
}
/**
* Prefix must end in '/'
*/
static
OCerror
rc_search(const char* prefix, const char* rcname, char** pathp)
{
char* path = NULL;
FILE* f = NULL;
int plen = strlen(prefix);
int rclen = strlen(rcname);
OCerror stat = OC_NOERR;
size_t pathlen = plen+rclen+1+1; /*+1 for '/' +1 for nul*/
path = (char*)malloc(pathlen);
if(path == NULL) {
stat = OC_ENOMEM;
goto done;
}
if(!occopycat(path,pathlen,3,prefix,"/",rcname)) {
stat = OC_EOVERRUN;
goto done;
}
/* see if file is readable */
f = fopen(path,"r");
if(f != NULL)
oclog(OCLOGDBG, "Found rc file=%s",path);
done:
if(f == NULL || stat != OC_NOERR) {
if(path != NULL)
free(path);
path = NULL;
}
if(f != NULL)
fclose(f);
if(pathp != NULL)
*pathp = path;
return OCTHROW(stat);
}
/*
Set curl properties for link based on rc files etc.
*/
static OCerror
ocset_curlproperties(OCstate* state)
{
OCerror stat = OC_NOERR;
/* extract the relevant triples int state */
ocrc_process(state);
if(state->curlflags.useragent == NULL) {
size_t len = strlen(DFALTUSERAGENT) + strlen(VERSION) + 1;
char* agent = (char*)malloc(len+1);
if(occopycat(agent,len,2,DFALTUSERAGENT,VERSION))
state->curlflags.useragent = agent;
else
free(agent);
}
/* Some servers (e.g. thredds and columbia) appear to require a place
to put cookies in order for some security functions to work
*/
if(state->curlflags.cookiejar != NULL
&& strlen(state->curlflags.cookiejar) == 0) {
free(state->curlflags.cookiejar);
state->curlflags.cookiejar = NULL;
}
if(state->curlflags.cookiejar == NULL) {
/* If no cookie file was defined, define a default */
char tmp[OCPATHMAX+1];
int stat;
pid_t pid = getpid();
snprintf(tmp,sizeof(tmp)-1,"%s/%s.%ld/",ocglobalstate.tempdir,OCDIR,(long)pid);
#ifdef _MSC_VER
stat = mkdir(tmp);
#else
stat = mkdir(tmp,S_IRUSR | S_IWUSR | S_IXUSR);
#endif
if(stat != 0 && errno != EEXIST) {
fprintf(stderr,"Cannot create cookie directory\n");
goto fail;
}
errno = 0;
/* Create the unique cookie file name */
stat = ocmktmp(tmp,&state->curlflags.cookiejar);
state->curlflags.createdflags |= COOKIECREATED;
if(stat != OC_NOERR && errno != EEXIST) {
fprintf(stderr,"Cannot create cookie file\n");
goto fail;
}
errno = 0;
}
OCASSERT(state->curlflags.cookiejar != NULL);
/* Make sure the cookie jar exists and can be read and written */
{
FILE* f = NULL;
char* fname = state->curlflags.cookiejar;
/* See if the file exists already */
f = fopen(fname,"r");
if(f == NULL) {
/* Ok, create it */
f = fopen(fname,"w+");
if(f == NULL) {
fprintf(stderr,"Cookie file cannot be read and written: %s\n",fname);
{stat = OC_EPERM; goto fail;}
}
} else { /* test if file can be written */
fclose(f);
f = fopen(fname,"r+");
if(f == NULL) {
fprintf(stderr,"Cookie file is cannot be written: %s\n",fname);
{stat = OC_EPERM; goto fail;}
}
}
if(f != NULL) fclose(f);
}
#if 0
/* Create a netrc file if specified and required,
where required => >1 NETRC triples exist */
if(ocrc_netrc_required(state)) {
/* WARNING: it appears that a user+pwd was specified specifically, then
the netrc file will be completely disabled. */
if(state->creds.userpwd != NULL) {
oclog(OCLOGWARN,"The rc file specifies both netrc and user+pwd; this will cause curl to ignore the netrc file");
}
stat = oc_build_netrc(state);
}
#endif
return stat;
fail:
return OCTHROW(stat);
}
int
ocinternalinitialize(void)
{
int stat = OC_NOERR;
if(!ocglobalstate.initialized) {
memset((void*)&ocglobalstate,0,sizeof(ocglobalstate));
ocglobalstate.initialized = 1;
}
/* Capture $HOME */
{
char* p;
char* q;
char* home = getenv("HOME");
char cwd[4096];
if(ocglobalstate.home == NULL) {
#if defined(_WIN32) || defined(_WIN64)
home = getenv("TEMP");
#else
home = "/tmp";
#endif
}
if(home == NULL) {
home = getcwd(cwd,sizeof(cwd));
if(home == NULL || *home == '\0') home = ".";
}
/* Convert '\' to '/' */
ocglobalstate.home = (char*)malloc(strlen(home) + 1);
for(p=home,q=ocglobalstate.home;*p;p++,q++) {
if(*p == '\\') {*q = '/'; } else {*q = *p;}
}
*q = '\0';
}
/* Compute some xdr related flags */
xxdr_init();
ocloginit();
oc_curl_protocols(&ocglobalstate); /* see what protocols are supported */
/* compile the .dodsrc, if any */
{
char* path = NULL;
char** alias;
FILE* f = NULL;
/* locate the configuration files: . first in '.', then $HOME */
for(alias=rcfilenames;*alias;alias++) {
size_t pathlen = strlen("./")+strlen(*alias)+1;
path = (char*)malloc(pathlen);
if(path == NULL) return OC_ENOMEM;
if(!occopycat(path,pathlen,2,"./",*alias)) {
if(path) free(path);
return OC_EOVERRUN;
}
/* see if file is readable */
f = fopen(path,"r");
if(f != NULL) break;
if(path != NULL) {free(path); path = NULL;} /* cleanup */
}
if(f == NULL) { /* try $HOME */
OCASSERT(path == NULL);
for(alias=rcfilenames;*alias;alias++) {
size_t pathlen = strlen(ocglobalstate.home)+1+strlen(*alias)+1;
path = (char*)malloc(pathlen);
if(path == NULL) return OC_ENOMEM;
if(!occopycat(path,pathlen,3,ocglobalstate.home,"/",*alias)) {
if(path) free(path);
return OC_EOVERRUN;
}
f = fopen(path,"r");
if(f != NULL) break;
if(path != NULL) {free(path); path=NULL;}
}
}
if(f == NULL) {
oclog(OCLOGDBG,"Cannot find runtime configuration file");
} else {
OCASSERT(path != NULL);
fclose(f);
if(ocdebug > 1)
fprintf(stderr, "DODS RC file: %s\n", path);
if(ocdodsrc_read(*alias,path) == 0)
oclog(OCLOGERR, "Error parsing %s\n",path);
}
if(path != NULL) free(path);
}
return OCTHROW(stat);
}
/*
Set curl properties for link based on rc files etc.
*/
static int
ocsetcurlproperties(OCstate* state)
{
CURLcode cstat = CURLE_OK;
/* process the triple store wrt to this state */
if(ocdodsrc_process(state) != OC_NOERR) {
oclog(OCLOGERR,"Malformed .opendaprc configuration file");
goto fail;
}
if(state->creds.username == NULL && state->creds.password == NULL) {
if(state->uri->user != NULL && state->uri->password != NULL) {
/* this overrides .dodsrc */
if(state->creds.password) free(state->creds.password);
state->creds.password = nulldup(state->uri->password);
if(state->creds.username) free(state->creds.username);
state->creds.username = nulldup(state->uri->user);
}
}
if(state->curlflags.useragent == NULL) {
size_t len = strlen(DFALTUSERAGENT) + strlen(VERSION) + 1;
char* agent = (char*)malloc(len+1);
if(occopycat(agent,len,2,DFALTUSERAGENT,VERSION))
state->curlflags.useragent = agent;
else
free(agent);
}
/* Some servers (e.g. thredds and columbia) appear to require a place
to put cookies in order for some security functions to work
*/
if(state->curlflags.cookiejar == NULL
|| *state->curlflags.cookiejar) {
#if 1
/* Apparently anything non-null will work */
state->curlflags.cookiejar = strdup("");
#else
/* If no cookie file was defined, define a default */
char* tmp;
int fd;
int stat;
tmp = (char*)malloc(strlen(ocglobalstate.home)
+strlen("/")
+strlen(OCDIR)
+strlen("/")
+1);
if(tmp == NULL)
return OC_ENOMEM;
strcpy(tmp,ocglobalstate.home);
strcat(tmp,"/");
strcat(tmp,OCDIR);
strcat(tmp,"/");
stat = mkdir(tmp,S_IRUSR | S_IWUSR | S_IXUSR);
if(stat != 0 && errno != EEXIST) {
fprintf(stderr,"Cannot create cookie file\n");
return stat;
}
errno = 0;
/* Create the actual cookie file */
stat = ocmktmp(tmp,&state->curlflags.cookiejar,&fd);
close(fd);
#if 0
fd = creat(tmp,S_IRUSR | S_IWUSR);
if(fd < 0) {
fprintf(stderr,"Cannot create cookie file\n");
return OC_EPERM;
}else
close(fd);
#endif
#endif
}
return OC_NOERR;
fail:
if(cstat != CURLE_OK)
oclog(OCLOGERR, "curl error: %s", curl_easy_strerror(cstat));
return OC_ECURL;
}
int
ocinternalinitialize(void)
{
int stat = OC_NOERR;
if(!ocglobalstate.initialized) {
memset((void*)&ocglobalstate,0,sizeof(ocglobalstate));
ocglobalstate.initialized = 1;
}
/* Compute some xdr related flags */
xxdr_init();
ocloginit();
oc_curl_protocols(&ocglobalstate); /* see what protocols are supported */
/* compile the .dodsrc, if any */
{
char* path = NULL;
char* homepath = NULL;
char** alias;
FILE* f = NULL;
/* locate the configuration files: . first in '.', then $HOME */
for(alias=rcfilenames;*alias;alias++) {
size_t pathlen = strlen("./")+strlen(*alias)+1;
path = (char*)malloc(pathlen);
if(path == NULL) return OC_ENOMEM;
if(!occopycat(path,pathlen,2,"./",*alias)) {
if(path) free(path);
return OC_EOVERRUN;
}
/* see if file is readable */
f = fopen(path,"r");
if(f != NULL) break;
if(path != NULL) {free(path); path = NULL;} /* cleanup */
}
if(f == NULL) { /* try $HOME */
OCASSERT(path == NULL);
homepath = getenv("HOME");
if (homepath!= NULL) {
for(alias=rcfilenames;*alias;alias++) {
size_t pathlen = strlen(homepath)+1+strlen(*alias)+1;
path = (char*)malloc(pathlen);
if(path == NULL) return OC_ENOMEM;
if(!occopycat(path,pathlen,3,homepath,"/",*alias)) {
if(path) {free(path);}
return OC_EOVERRUN;
}
f = fopen(path,"r");
if(f != NULL) break;
if(path != NULL) {free(path); path=NULL;}
}
}
}
if(f == NULL) {
oclog(OCLOGDBG,"Cannot find runtime configuration file");
} else {
OCASSERT(path != NULL);
fclose(f);
if(ocdebug > 1)
fprintf(stderr, "DODS RC file: %s\n", path);
if(ocdodsrc_read(*alias,path) == 0)
oclog(OCLOGERR, "Error parsing %s\n",path);
}
if(path != NULL) free(path);
}
return OCTHROW(stat);
}
